-- ==========================================================
--                  ADVANCED DAMAGE SYSTEM
-- ==========================================================

AdvancedDamageSystem = {
    STATUS = {
        READY = 'ads_spec_state_ready',
        INSPECTION = 'ads_spec_state_inspection',
        MAINTENANCE = 'ads_spec_state_maintenance',
        REPAIR = 'ads_spec_state_repair',
        OVERHAUL = 'ads_spec_state_overhaul',
        BROKEN = 'ads_spec_state_broken'
    },

    STATES = {
        EXCELLENT = 'ads_spec_state_excellent',
        GOOD = 'ads_spec_state_good',
        NORMAL = 'ads_spec_state_normal',
        BAD = 'ads_spec_state_bad',
        TERRIBLE = 'ads_spec_state_terrible',
        UNKNOWN = 'ads_spec_state_unknown',
        OPTIMAL = "ads_spec_state_optimal",
        RECOMMENDED = "ads_spec_state_recommended",
        REQUIRED = "ads_spec_state_required",
        OVERDUE = "ads_spec_state_overdue",
        LEGENDARY = "ads_spec_state_legendary",
        PREMIUM = "ads_spec_state_premium",
        STANDART = "ads_spec_state_standart",
        BUDGET = "ads_spec_state_budget",
        LOW = "ads_spec_state_low",
        AVERAGE = "ads_spec_state_average",
        HIGH = "ads_spec_state_high",
        WORKHORSE = "ads_spec_state_workhorse"
    },

    SYSTEMS = {
        ENGINE = "ads_spec_system_engine",
        TRANSMISSION = "ads_spec_system_transmission",
        HYDRAULICS = "ads_spec_system_hydraulics",
        COOLING = "ads_spec_system_cooling",
        ELECTRICAL = "ads_spec_system_electrical",
        CHASSIS = "ads_spec_system_chassis",
        WORKPROCESS = "ads_spec_system_workprocess",
        FUEL = "ads_spec_system_fuel",
        [1] = "ads_spec_system_engine",
        [2] = "ads_spec_system_transmission",
        [3] = "ads_spec_system_hydraulics",
        [4] = "ads_spec_system_cooling",
        [5] = "ads_spec_system_electrical",
        [6] = "ads_spec_system_chassis",
        [7] = "ads_spec_system_workprocess",
        [8] = "ads_spec_system_fuel"
    },

    BREAKDOWN_SOURCES = {
        RANDOM = 1,
        POOR_PARTS = 2,
        QUICK_FIX = 3
    },

    WORKSHOP = {
    DEALER  = "ads_spec_workshop_dealer",
    MOBILE  = "ads_spec_workshop_mobile",
    OWN     = "ads_spec_workshop_own",
    [1] = "ads_spec_workshop_dealer",
    [2] = "ads_spec_workshop_mobile",
    [3] = "ads_spec_workshop_own",
    },

    PART_TYPES = {
    OEM         = "ads_spec_part_types_oem",
    USED        = "ads_spec_part_types_used",
    AFTERMARKET = "ads_spec_part_types_aftermarket",
    PREMIUM     = "ads_spec_part_types_premium",
    [1] = "ads_spec_part_types_oem",
    [2] = "ads_spec_part_types_used",
    [3] = "ads_spec_part_types_aftermarket",
    [4] = "ads_spec_part_types_premium",
    },

    INSPECTION_TYPES = {
    STANDARD = "ads_spec_inspection_standard",
    VISUAL   = "ads_spec_inspection_visual",
    COMPLETE = "ads_spec_inspection_complete",
    [1] = "ads_spec_inspection_standard",
    [2] = "ads_spec_inspection_visual",
    [3] = "ads_spec_inspection_complete",
    },

    MAINTENANCE_TYPES = {
    STANDARD = "ads_spec_maintenance_standard",
    MINIMAL  = "ads_spec_maintenance_minimal",
    EXTENDED = "ads_spec_maintenance_extended",
    PREVENTIVE = "ads_spec_maintenance_preventive",
    [1] = "ads_spec_maintenance_standard",
    [2] = "ads_spec_maintenance_minimal",
    [3] = "ads_spec_maintenance_extended",
    [4] = "ads_spec_maintenance_preventive",
    },

    REPAIR_TYPES = {
    LOW    = "ads_spec_repair_type_fix",
    MEDIUM = "ads_spec_repair_type_replacement",
    HIGH = "ads_spec_repair_type_advanced",
    [1] = "ads_spec_repair_type_fix",
    [2] = "ads_spec_repair_type_replacement",
    [3] = "ads_spec_repair_type_advanced",
    },

    OVERHAUL_TYPES = {
    STANDARD = "ads_spec_overhaul_standard",
    PARTIAL  = "ads_spec_overhaul_partial",
    FULL     = "ads_spec_overhaul_full",
    [1] = "ads_spec_overhaul_standard",
    [2] = "ads_spec_overhaul_partial",
    [3] = "ads_spec_overhaul_full",
    },

    TRANSMISSION_TYPES = {
    MANUAL      = "manual",
    MANUAL_POWERSHIFT = "manual_powershift",
    AUTOMATIC   = "automatic",
    POWERSHIFT  = "powershift",
    VARIABLE    = "variable",
    CVT         = "variable",
    UNKNOWN     = "unknown",
    [1] = "manual",
    [2] = "manual_powershift",
    [3] = "automatic",
    [4] = "powershift",
    [5] = "variable",
    [6] = "unknown",
    },
}

AdvancedDamageSystem.modDirectory = g_currentModDirectory

function AdvancedDamageSystem.isFiniteNumber(value)
    return type(value) == "number" and value == value and value ~= math.huge and value ~= -math.huge
end

function AdvancedDamageSystem.sanitizeNumber(value, fallback, minValue, maxValue)
    local sanitized = tonumber(value)
    local safeFallback = tonumber(fallback)

    if not AdvancedDamageSystem.isFiniteNumber(safeFallback) then
        safeFallback = 0
    end

    if not AdvancedDamageSystem.isFiniteNumber(sanitized) then
        sanitized = safeFallback
    end

    if minValue ~= nil then
        local minNumber = tonumber(minValue)
        if AdvancedDamageSystem.isFiniteNumber(minNumber) and sanitized < minNumber then
            sanitized = minNumber
        end
    end

    if maxValue ~= nil then
        local maxNumber = tonumber(maxValue)
        if AdvancedDamageSystem.isFiniteNumber(maxNumber) and sanitized > maxNumber then
            sanitized = maxNumber
        end
    end

    return sanitized
end

source(g_currentModDirectory .. "scripts/core/ADS_Thermal.lua")
source(g_currentModDirectory .. "scripts/core/ADS_Electrical.lua")
source(g_currentModDirectory .. "scripts/core/ADS_Breakdowns.lua")
source(g_currentModDirectory .. "scripts/core/ADS_Consumptables.lua")

AdvancedDamageSystem.FACTOR_STATS_ALIASES = {
    expiredServiceFactor = "sf",
    -- engine
    motorLoadFactor = "mlf",
    airIntakeCloggingFactor = "aicf",
    coldMotorFactor = "cmf",
    hotMotorFactor = "hmf",
    -- transmission
    pullOverloadFactor = "pof",
    heavyTrailerFactor = "htf",
    luggingFactor = "lf",
    wheelSlipFactor = "wsf",
    coldTransFactor = "ctf",
    hotTransFactor = "hotf",
    -- hydraulic
    heavyLiftFactor = "hlf",
    operatingFactor = "of",
    coldOilFactor = "cof",
    sharpAngleFactor = "saf",
    -- cooling
    highCoolingFactor = "hcf",
    overheatFactor = "ohf",
    coldShockFactor = "csf",

    -- electrical
    weatherExposureFactor = "wef",
    lightsFactor = "ltf",
    crankingStressFactor = "crf",

    -- chassis
    vibFactor = "vf",
    steerLoadFactor = "slf",
    brakeMassFactor = "bmf",

    --fuel
    lowFuelStarvationFactor = "lff",
    coldFuelFactor = "cff",
    idleDepositFactor = "idf",
    highPressureFactor = "hpf",
    wetCropFactor = "wcf",
    lubricationFactor = "lubf",
    instantDamageFactor = "idfg"
}

-- ==========================================================
--                          HELPER FUNCTIONS
-- ==========================================================

local function log_dbg(...)
    if ADS_Config and ADS_Config.DEBUG then
        local args = {...}
        for i = 1, #args do
            args[i] = tostring(args[i])
        end
        print("[ADS_SPEC] " .. table.concat(args, " "))
    end
end

local PTO_SHARP_ANGLE_EXCLUDED_TYPES = {
    combineDrivable = true,
    combineCutter = true,
    combineCutterFruitPreparer = true,
    cottonHarvester = true,
    riceHarvester = true,
    vineHarvester = true,
    balerDrivable = true,
    selfPropelledMower = true,
    woodHarvester = true,
    ricePlanter = true
}

local function createEmptyFactorStats(systems)
    local result = {}
    if type(systems) ~= "table" then
        return result
    end

    for systemKey, _ in pairs(systems) do
        result[systemKey] = {
            total = 0,
            stress = 0,
            _prevStress = 0,
            _avgStress = 0,
            operatingHours = -1
        }
    end

    return result
end

local function getVehicleOperatingHours(vehicle)
    if vehicle == nil then
        return 0
    end

    if vehicle.getOperatingTime ~= nil then
        local operatingTime = tonumber(vehicle:getOperatingTime())
        if operatingTime ~= nil then
            return operatingTime / (60 * 60 * 1000)
        end
    end

    if vehicle.getFormattedOperatingTime ~= nil then
        return tonumber(vehicle:getFormattedOperatingTime()) or 0
    end

    return 0
end

local function flattenFactorStats(factorStats)
    local flat = {}
    if type(factorStats) ~= "table" then
        return flat
    end

    for systemKey, stats in pairs(factorStats) do
        if type(stats) == "table" then
            for statKey, statValue in pairs(stats) do
                local numericValue = tonumber(statValue)
                if numericValue ~= nil then
                    flat[string.format("%s.%s", tostring(systemKey), tostring(statKey))] = numericValue
                end
            end
        end
    end

    return flat
end

local function applyFlattenedFactorStats(spec, flattenedMap)
    if spec == nil then
        return
    end

    if type(spec.factorStats) ~= "table" then
        spec.factorStats = {}
    end

    if type(flattenedMap) ~= "table" then
        return
    end

    for flatKey, value in pairs(flattenedMap) do
        local systemKey, statKey = string.match(tostring(flatKey), "([^%.]+)%.(.+)")
        local numericValue = tonumber(value)
        if systemKey ~= nil and statKey ~= nil and numericValue ~= nil then
            if type(spec.factorStats[systemKey]) ~= "table" then
                spec.factorStats[systemKey] = {}
            end
            spec.factorStats[systemKey][statKey] = numericValue
        end
    end
end

local function ensureFactorStats(spec, vehicle)
    if spec == nil then
        return {}
    end

    if type(spec.factorStats) ~= "table" then
        spec.factorStats = {}
    end

    for systemKey, _ in pairs(spec.systems or {}) do
        if type(spec.factorStats[systemKey]) ~= "table" then
            spec.factorStats[systemKey] = {}
        end

        local stats = spec.factorStats[systemKey]
        stats.total = tonumber(stats.total) or 0
        stats.stress = tonumber(stats.stress) or 0
        stats._prevStress = tonumber(stats._prevStress) or 0
        stats._avgStress = tonumber(stats._avgStress) or 0
        stats.operatingHours = tonumber(stats.operatingHours)
        if stats.operatingHours == nil then
            stats.operatingHours = -1
        end
    end

    return spec.factorStats
end

local function hasCVTTransmission(vehicle)
    local motor = vehicle:getMotor()
    return motor ~= nil and motor.minForwardGearRatio ~= nil
end

local function getTransmissionNameFromXML(vehicle)
    if vehicle == nil then
        return nil
    end

    local motorConfigIndex = 1
    if vehicle.configurations ~= nil and vehicle.configurations.motor ~= nil then
        motorConfigIndex = math.max(tonumber(vehicle.configurations.motor) or 1, 1)
    end

    if vehicle.xmlFile ~= nil and vehicle.xmlFile.getValue ~= nil then
        local key = string.format("vehicle.motorized.motorConfigurations.motorConfiguration(%d).transmission#name", motorConfigIndex - 1)
        local name = vehicle.xmlFile:getValue(key)
        if name ~= nil then
            return tostring(name)
        end
    end

    local storeItem = g_storeManager ~= nil and vehicle.configFileName ~= nil and g_storeManager:getItemByXMLFilename(vehicle.configFileName) or nil
    if storeItem ~= nil and storeItem.specs ~= nil and type(storeItem.specs.transmission) == "table" then
        return storeItem.specs.transmission[motorConfigIndex] or storeItem.specs.transmission[1]
    end

    return nil
end

local function getTransmissionType(vehicle)
    local transmissionTypes = AdvancedDamageSystem.TRANSMISSION_TYPES
    if vehicle == nil or vehicle.getMotor == nil then
        return transmissionTypes.UNKNOWN
    end

    local motor = vehicle:getMotor()
    if motor == nil then
        return transmissionTypes.UNKNOWN
    end

    local transmissionName = getTransmissionNameFromXML(vehicle)
    if transmissionName ~= nil then
        local normalizedName = string.lower(tostring(transmissionName))
        if string.find(normalizedName, "manual", 1, true) ~= nil
            and (string.find(normalizedName, "powershift", 1, true) ~= nil
            or string.find(normalizedName, "power shift", 1, true) ~= nil) then
            return transmissionTypes.MANUAL_POWERSHIFT
        elseif string.find(normalizedName, "powershift", 1, true) ~= nil
            or string.find(normalizedName, "power shift", 1, true) ~= nil then
            return transmissionTypes.POWERSHIFT
        elseif string.find(normalizedName, "variable", 1, true) ~= nil
            or string.find(normalizedName, "cvt", 1, true) ~= nil then
            return transmissionTypes.VARIABLE
        elseif string.find(normalizedName, "automatic", 1, true) ~= nil
            or string.find(normalizedName, "auto", 1, true) ~= nil then
            return transmissionTypes.AUTOMATIC
        elseif string.find(normalizedName, "manual", 1, true) ~= nil then
            return transmissionTypes.MANUAL
        end
    end

    if motor.gearType == VehicleMotor.TRANSMISSION_TYPE.POWERSHIFT
        or motor.groupType == VehicleMotor.TRANSMISSION_TYPE.POWERSHIFT then
        if motor.forwardGears ~= nil or motor.backwardGears ~= nil then
            return transmissionTypes.MANUAL_POWERSHIFT
        end

        return transmissionTypes.POWERSHIFT
    end

    if motor.minForwardGearRatio ~= nil then
        return transmissionTypes.VARIABLE
    end

    if motor.forwardGears ~= nil or motor.backwardGears ~= nil then
        return transmissionTypes.MANUAL
    end

    return transmissionTypes.UNKNOWN
end

AdvancedDamageSystem.getTransmissionType = getTransmissionType
AdvancedDamageSystem.getTransmissionNameFromXML = getTransmissionNameFromXML

local function hasCVTAddon(vehicle)
    local spec_CVTaddon = vehicle.spec_CVTaddon
    local cvtAddonConfig = spec_CVTaddon ~= nil and (tonumber(spec_CVTaddon.CVTconfig) or 0) or 0
    local hasActiveCVTAddon = spec_CVTaddon ~= nil
        and spec_CVTaddon.CVTcfgExists
        and cvtAddonConfig ~= 0
        and cvtAddonConfig ~= 8
    return hasActiveCVTAddon
end

local function getIsElectricVehicle(vehicle)
    if vehicle.spec_motorized and vehicle.spec_motorized.consumers then
        for _, consumer in pairs(vehicle.spec_motorized.consumers) do
            if consumer.fillType == FillType.ELECTRICCHARGE then
                return true
            end
        end
    end
    return false
end

local function getIsExcludedFromADS(vehicle)
    local vehicleName = vehicle:getFullName()
    if getIsElectricVehicle(vehicle) or
            vehicleName == 'Lizard Old Bike' or
            vehicleName == 'Lizard Mountain Bike' or
            vehicleName == 'Lizard Motorized Bike' then
        return true
    end
    return false
end

local function raiseAllADSDirtyFlags(vehicle, spec)
    if not vehicle.isServer then
        return
    end

    local dirtyFlags = {
        spec.adsDirtyFlag_state,
        spec.adsDirtyFlag_serviceContext,
        spec.adsDirtyFlag_telemetry,
        spec.adsDirtyFlag_thermal,
        spec.adsDirtyFlag_electrical,
        spec.adsDirtyFlag_fieldcare,
        spec.adsDirtyFlag_wear,
        spec.adsDirtyFlag_breakdowns,
        spec.adsDirtyFlag_serviceProgress
    }

    for _, dirtyFlag in ipairs(dirtyFlags) do
        if dirtyFlag ~= nil then
            vehicle:raiseDirtyFlags(dirtyFlag)
        end
    end
end

function AdvancedDamageSystem:setADSUserExcluded(isExcluded, noEventSend)
    local spec = self.spec_AdvancedDamageSystem
    if spec == nil then
        return false, "unsupported"
    end

    if spec.isExcludedByDefault then
        return false, "default"
    end

    local requestedValue = isExcluded == true
    if spec.isExcludedByUser == requestedValue then
        return false, "unchanged"
    end

    spec.isExcludedByUser = requestedValue
    spec.isExcludedVehicle = spec.isExcludedByDefault or spec.isExcludedByUser

    if spec.isExcludedVehicle then
        spec.pendingSideNotifications = {}
    end

    self:recalculateAndApplyEffects()
    raiseAllADSDirtyFlags(self, spec)

    if self.isClient and ADS_Main ~= nil and ADS_Main.hud ~= nil
            and g_localPlayer ~= nil and g_localPlayer.getCurrentVehicle ~= nil
            and g_localPlayer:getCurrentVehicle() == self then
        ADS_Main.hud:setVehicle(self)
        ADS_Main.hud:setVisible(not spec.isExcludedVehicle, true)
    end

    if self.isServer and not noEventSend and ADS_VehicleExclusionEvent ~= nil then
        ADS_VehicleExclusionEvent.sendToClients(self, spec.isExcludedByUser)
    end

    return true
end

local function getIsVehicleNeedLubticate(vehicle)
    local spec = vehicle.spec_AdvancedDamageSystem
    if spec == nil then
        return false
    end

    local workProcessSystem = spec.systems ~= nil and spec.systems.workprocess or nil
    if type(workProcessSystem) ~= "table" then
        return false
    end

    return workProcessSystem.enabled ~= false
end

local function getIsVehicleNeedBlowOut(vehicle)
    local storeItem = g_storeManager:getItemByXMLFilename(vehicle.configFileName)
    local categoryName = storeItem ~= nil and storeItem.categoryName or ""
    local vtype = vehicle.type ~= nil and vehicle.type.name or ""

    if categoryName == "TRUCKS" or vtype == "car" or vtype == "carFillable" or vtype == "motorbike" then
        return false
    end

    return true
end

local function computeSystemSyncHash(vehicle)
    local spec = vehicle.spec_AdvancedDamageSystem
    if spec == nil then
        return 0
    end

    local systemHash = 0

    local sortedKeys = {}
    for sysKey, _ in pairs(spec.systems) do
        table.insert(sortedKeys, sysKey)
    end
    table.sort(sortedKeys)
    for i, sysKey in ipairs(sortedKeys) do
        local sysData = spec.systems[sysKey]
            local c = sysData.condition or 0
            local s = sysData.stress    or 0
            local e = sysData.enabled ~= false and 1 or 0
            systemHash = systemHash + (c + s * 0.001 + e * 0.0001) * i
    end
    return systemHash
end

local function getSafeMissionTimeScale()
    local missionInfo = g_currentMission ~= nil and g_currentMission.missionInfo or nil
    local timeScale = (missionInfo and missionInfo.timeScale) or 1
    if timeScale <= 0 then
        timeScale = 1
    end
    return timeScale
end

-- ==========================================================
--                         DIRTY FLAGS HELPERS
-- ==========================================================

local function canRaiseDirtyFlag(vehicle, spec, flag)
    return vehicle ~= nil and vehicle.isServer and spec ~= nil and flag ~= nil
end

local function getSyncOperatingTime(vehicle)
    if vehicle == nil then
        return 0
    end

    if vehicle.getOperatingTime ~= nil then
        return tonumber(vehicle:getOperatingTime()) or 0
    end

    return tonumber(vehicle.operatingTime) or 0
end

local function getSyncMotorLoad(vehicle)
    if vehicle == nil or vehicle.getMotorLoadPercentage == nil then
        return 0
    end

    return tonumber(vehicle:getMotorLoadPercentage()) or 0
end

local function serializeBreakdownsForDirtyCheck(breakdownsTable)
    local parts = {}

    for id, breakdown in pairs(breakdownsTable or {}) do
        local stage = math.max(math.floor(tonumber(breakdown.stage) or 1), 1)
        local visible = breakdown.isVisible and 1 or 0
        local selected = breakdown.isSelectedForRepair and 1 or 0
        local active = breakdown.isActive ~= false and 1 or 0
        local source = math.max(math.floor(tonumber(breakdown.source) or 0), 0)

        table.insert(parts, string.format("%s,%d,%d,%d,%d,%d", id, stage, visible, selected, active, source))
    end

    table.sort(parts)

    return table.concat(parts, ";")
end

local function syncFloatChanged(a, b, epsilon)
    local valueA = AdvancedDamageSystem.sanitizeNumber(a, 0)
    local valueB = AdvancedDamageSystem.sanitizeNumber(b, 0)
    return math.abs(valueA - valueB) > (epsilon or 0)
end

local function markStateDirty(vehicle, spec)
    if not canRaiseDirtyFlag(vehicle, spec, spec.adsDirtyFlag_state) then
        return false
    end

    if spec._lastSyncState_currentState ~= spec.currentState or
       spec._lastSyncState_plannedState ~= spec.plannedState or
       syncFloatChanged(spec._lastSyncState_maintenanceTimer, spec.maintenanceTimer, 1.0) then
            vehicle:raiseDirtyFlags(spec.adsDirtyFlag_state)
            spec._lastSyncState_currentState = spec.currentState
            spec._lastSyncState_plannedState = spec.plannedState
            spec._lastSyncState_maintenanceTimer = spec.maintenanceTimer
            return true
    end

    return false
end

local function markServiceContextDirty(vehicle, spec)
    if not canRaiseDirtyFlag(vehicle, spec, spec.adsDirtyFlag_serviceContext) then
        return false
    end

    if spec._lastSyncServiceContext_optionOne ~= spec.serviceOptionOne or
       spec._lastSyncServiceContext_optionTwo ~= spec.serviceOptionTwo or
       spec._lastSyncServiceContext_optionThree ~= spec.serviceOptionThree or
       spec._lastSyncServiceContext_workshopType ~= spec.workshopType then
            vehicle:raiseDirtyFlags(spec.adsDirtyFlag_serviceContext)
            spec._lastSyncServiceContext_optionOne = spec.serviceOptionOne
            spec._lastSyncServiceContext_optionTwo = spec.serviceOptionTwo
            spec._lastSyncServiceContext_optionThree = spec.serviceOptionThree
            spec._lastSyncServiceContext_workshopType = spec.workshopType
            return true
    end

    return false
end

local function markTelemetryDirty(vehicle, spec)
    if not canRaiseDirtyFlag(vehicle, spec, spec.adsDirtyFlag_telemetry) then
        return false
    end

    local operatingTime = getSyncOperatingTime(vehicle)
    local realOperatingTime = spec.realOperatingTime or 0
    local motorLoad = getSyncMotorLoad(vehicle)
    local dynamicMotorLoad = tonumber(spec.dynamicMotorLoad) or 0

    if syncFloatChanged(spec._lastSyncTelemetry_operatingTime, operatingTime, 1.0) or
       syncFloatChanged(spec._lastSyncTelemetry_realOperatingTime, realOperatingTime, 1.0) or
       syncFloatChanged(spec._lastSyncTelemetry_fuelUsageRaw, spec._fuelUsageRaw, 0.3) or
       syncFloatChanged(spec._lastSyncTelemetry_motorLoad, motorLoad, 0.01) or
       syncFloatChanged(spec._lastSyncTelemetry_dynamicMotorLoad, dynamicMotorLoad, 0.01) then
            vehicle:raiseDirtyFlags(spec.adsDirtyFlag_telemetry)
            spec._lastSyncTelemetry_operatingTime = operatingTime
            spec._lastSyncTelemetry_realOperatingTime = realOperatingTime
            spec._lastSyncTelemetry_fuelUsageRaw = spec._fuelUsageRaw
            spec._lastSyncTelemetry_motorLoad = motorLoad
            spec._lastSyncTelemetry_dynamicMotorLoad = dynamicMotorLoad
            return true
    end

    return false
end

local function markThermalDirty(vehicle, spec)
    if not canRaiseDirtyFlag(vehicle, spec, spec.adsDirtyFlag_thermal) then
        return false
    end

    if syncFloatChanged(spec._lastSyncThermal_rawEngineTemperature, spec.rawEngineTemperature, 0.05) or
       syncFloatChanged(spec._lastSyncThermal_rawTransmissionTemperature, spec.rawTransmissionTemperature, 0.05) or
       syncFloatChanged(spec._lastSyncThermal_thermostatState, spec.thermostatState, 0.05) or
       syncFloatChanged(spec._lastSyncThermal_transmissionThermostatState, spec.transmissionThermostatState, 0.05) then
            vehicle:raiseDirtyFlags(spec.adsDirtyFlag_thermal)
            spec._lastSyncThermal_rawEngineTemperature = spec.rawEngineTemperature
            spec._lastSyncThermal_rawTransmissionTemperature = spec.rawTransmissionTemperature
            spec._lastSyncThermal_thermostatState = spec.thermostatState
            spec._lastSyncThermal_transmissionThermostatState = spec.transmissionThermostatState
            return true
    end

    return false
end

local function markElectricalDirty(vehicle, spec)
    if not canRaiseDirtyFlag(vehicle, spec, spec.adsDirtyFlag_electrical) then
        return false
    end

    if syncFloatChanged(spec._lastSyncElectrical_batterySoc, spec.batterySoc, 0.01) or
       syncFloatChanged(spec._lastSyncElectrical_batteryChargeAh, spec.batteryChargeAh, 0.01) or
       syncFloatChanged(spec._lastSyncElectrical_batteryTerminalVoltage, spec.batteryTerminalVoltageV, 0.01) or
       syncFloatChanged(spec._lastSyncElectrical_systemVoltage, spec.systemVoltageV, 0.01) then
            vehicle:raiseDirtyFlags(spec.adsDirtyFlag_electrical)
            spec._lastSyncElectrical_batterySoc = spec.batterySoc
            spec._lastSyncElectrical_batteryChargeAh = spec.batteryChargeAh
            spec._lastSyncElectrical_batteryTerminalVoltage = spec.batteryTerminalVoltageV
            spec._lastSyncElectrical_systemVoltage = spec.systemVoltageV
            return true
    end

    return false
end

local function markFieldcareDirty(vehicle, spec)
    if not canRaiseDirtyFlag(vehicle, spec, spec.adsDirtyFlag_fieldcare) then
        return false
    end

    if syncFloatChanged(spec._lastSyncFieldcare_radiatorClogging, spec.radiatorClogging, 0.005) or
       syncFloatChanged(spec._lastSyncFieldcare_airIntakeClogging, spec.airIntakeClogging, 0.005) or
       syncFloatChanged(spec._lastSyncFieldcare_lubricationLevel, spec.lubricationLevel, 0.005) then
            vehicle:raiseDirtyFlags(spec.adsDirtyFlag_fieldcare)
            spec._lastSyncFieldcare_radiatorClogging = spec.radiatorClogging
            spec._lastSyncFieldcare_airIntakeClogging = spec.airIntakeClogging
            spec._lastSyncFieldcare_lubricationLevel = spec.lubricationLevel
            return true
    end

    return false
end

local function markWearDirty(vehicle, spec)
    if not canRaiseDirtyFlag(vehicle, spec, spec.adsDirtyFlag_wear) then
        return false
    end

    local systemsHash = computeSystemSyncHash(vehicle)

    if syncFloatChanged(spec._lastSyncWear_serviceLevel, spec.serviceLevel, 0.001) or
       syncFloatChanged(spec._lastSyncWear_conditionLevel, spec.conditionLevel, 0.001) or
       spec._lastSyncWear_systemsHash ~= systemsHash then
            vehicle:raiseDirtyFlags(spec.adsDirtyFlag_wear)
            spec._lastSyncWear_serviceLevel = spec.serviceLevel
            spec._lastSyncWear_conditionLevel = spec.conditionLevel
            spec._lastSyncWear_systemsHash = systemsHash
            return true
    end

    return false
end

local function markBreakdownsDirty(vehicle, spec)
    if not canRaiseDirtyFlag(vehicle, spec, spec.adsDirtyFlag_breakdowns) then
        return false
    end

    local serializedBreakdowns = serializeBreakdownsForDirtyCheck(spec.activeBreakdowns)
    if spec._lastSyncBreakdowns_serialized ~= serializedBreakdowns then
            vehicle:raiseDirtyFlags(spec.adsDirtyFlag_breakdowns)
            spec._lastSyncBreakdowns_serialized = serializedBreakdowns
            return true
    end

    return false
end

local function markServiceProgressDirty(vehicle, spec)
    if not canRaiseDirtyFlag(vehicle, spec, spec.adsDirtyFlag_serviceProgress) then
        return false
    end

    if syncFloatChanged(spec._lastSyncServiceProgress_elapsed, spec.pendingProgressElapsedTime,500.0) or
       spec._lastSyncServiceProgress_step ~= spec.pendingProgressStepIndex or
       syncFloatChanged(spec._lastSyncServiceProgress_total, spec.pendingProgressTotalTime, 500.0) then
            vehicle:raiseDirtyFlags(spec.adsDirtyFlag_serviceProgress)
            spec._lastSyncServiceProgress_elapsed = spec.pendingProgressElapsedTime
            spec._lastSyncServiceProgress_step = spec.pendingProgressStepIndex
            spec._lastSyncServiceProgress_total = spec.pendingProgressTotalTime
            return true
    end

    return false
end

function AdvancedDamageSystem.raiseServiceLifecycleDirtyFlags(vehicle)
    if vehicle == nil or vehicle.spec_AdvancedDamageSystem == nil then
        return false
    end

    local spec = vehicle.spec_AdvancedDamageSystem
    local raised = false

    if markStateDirty(vehicle, spec) then
        raised = true
    end
    if markServiceContextDirty(vehicle, spec) then
        raised = true
    end
    if markWearDirty(vehicle, spec) then
        raised = true
    end
    if markBreakdownsDirty(vehicle, spec) then
        raised = true
    end
    if markServiceProgressDirty(vehicle, spec) then
        raised = true
    end

    return raised
end

function AdvancedDamageSystem.forceFinishService(vehicle)
    if vehicle == nil or vehicle.spec_AdvancedDamageSystem == nil or not vehicle.isServer then
        return false
    end

    local spec = vehicle.spec_AdvancedDamageSystem
    if spec.currentState == AdvancedDamageSystem.STATUS.READY then
        return false
    end

    local remainingMs = math.max(spec.maintenanceTimer or 0, 0)
    local missionInfo = g_currentMission and g_currentMission.missionInfo or nil
    local timeScale = (missionInfo and missionInfo.timeScale) or 1
    if timeScale <= 0 then
        timeScale = 1
    end

    local forceDt = math.max(math.ceil(remainingMs / timeScale) + 1, 1)

    local previousWorkshopOpen = nil
    if ADS_Main ~= nil then
        previousWorkshopOpen = ADS_Main.isWorkshopOpen
        ADS_Main.isWorkshopOpen = true
    end

    local ok, err = pcall(function()
        vehicle:processService(forceDt)
    end)

    if ADS_Main ~= nil and previousWorkshopOpen ~= nil then
        ADS_Main.isWorkshopOpen = previousWorkshopOpen
    end

    if not ok then
        log_dbg(string.format("Failed to force-finish service for '%s': %s", vehicle:getFullName(), tostring(err)))
        return false
    end

    if spec.currentState ~= AdvancedDamageSystem.STATUS.READY then
        spec.pendingProgressElapsedTime = spec.pendingProgressTotalTime or 0
        spec.maintenanceTimer = 0
        vehicle:completeService()
    end

    return true
end

-- ==========================================================
--                          REGISTRATION
-- ==========================================================

function AdvancedDamageSystem.initSpecialization()
    log_dbg("initSpecialization called.")
    local schema = Vehicle.xmlSchema
    local schemaSavegame = Vehicle.xmlSchemaSavegame

    schema:setXMLSpecializationType("AdvancedDamageSystem")

    local baseKey = "vehicles.vehicle(?).AdvancedDamageSystem"
    schemaSavegame:register(XMLValueType.BOOL,   baseKey .. "#isExcludedByUser", "User-controlled ADS exclusion flag")
    schemaSavegame:register(XMLValueType.FLOAT,  baseKey .. "#service", "Service Level")
    schemaSavegame:register(XMLValueType.FLOAT,  baseKey .. "#condition", "Condition Level")
    schemaSavegame:register(XMLValueType.FLOAT,  baseKey .. "#acceleratorPedalLimit", "Driver accelerator pedal limit")
    schemaSavegame:register(XMLValueType.STRING, baseKey .. "#breakdowns", "Active Breakdowns")
    schemaSavegame:register(XMLValueType.STRING, baseKey .. "#state", "Current State")
    schemaSavegame:register(XMLValueType.STRING, baseKey .. "#plannedState", "Planned State")
    schemaSavegame:register(XMLValueType.FLOAT,  baseKey .. "#maintenanceTimer", "Maintenance Timer")
    schemaSavegame:register(XMLValueType.FLOAT,  baseKey .. "#realOperatingTime", "Real Operating Time")
    schemaSavegame:register(XMLValueType.FLOAT,  baseKey .. "#engineTemperature", "Engine Temperature")
    schemaSavegame:register(XMLValueType.FLOAT,  baseKey .. "#transmissionTemperature", "Transmission Temperature")
    schemaSavegame:register(XMLValueType.FLOAT,  baseKey .. "#batterySoc", "Battery State Of Charge")
    schemaSavegame:register(XMLValueType.FLOAT,  baseKey .. "#batteryChargeAh", "Battery Absolute Charge")
    schemaSavegame:register(XMLValueType.FLOAT,  baseKey .. "#batteryTempC", "Battery Temperature")
    schemaSavegame:register(XMLValueType.FLOAT,  baseKey .. "#radiatorClogging", "Radiator clogging level")
    schemaSavegame:register(XMLValueType.FLOAT,  baseKey .. "#airIntakeClogging", "Air intake clogging level")
    schemaSavegame:register(XMLValueType.FLOAT,  baseKey .. "#lubricationLevel", "Lubrication level")
    schemaSavegame:register(XMLValueType.INT,    baseKey .. "#lastLubricationProcessedDay", "Last lubrication processed day")
    schemaSavegame:register(XMLValueType.FLOAT,  baseKey .. "#thermostatState", "Engine Thermostat Position")
    schemaSavegame:register(XMLValueType.FLOAT,  baseKey .. "#transmissionThermostatState", "Transmission Thermostat Position")
    schemaSavegame:register(XMLValueType.FLOAT,  baseKey .. "#lastInspPwr", "Last Inspected Power")
    schemaSavegame:register(XMLValueType.FLOAT,  baseKey .. "#lastInspBrk", "Last Inspected Brake")
    schemaSavegame:register(XMLValueType.FLOAT,  baseKey .. "#lastInspYld", "Last Inspected Yield Reduction")
    schemaSavegame:register(XMLValueType.STRING, baseKey .. "#serviceOptionOne", "Current Service Option One")
    schemaSavegame:register(XMLValueType.STRING, baseKey .. "#serviceOptionTwo", "Current Service Option Two")
    schemaSavegame:register(XMLValueType.BOOL,   baseKey .. "#serviceOptionThree", "Current Service Option Three")
    schemaSavegame:register(XMLValueType.STRING, baseKey .. "#workshopType", "Workshop Type")
    schemaSavegame:register(XMLValueType.STRING, baseKey .. "#pendingSelectedBreakdowns", "Pending Selected Breakdowns")
    schemaSavegame:register(XMLValueType.FLOAT,  baseKey .. "#pendingServicePrice", "Pending Service Price")
    schemaSavegame:register(XMLValueType.STRING, baseKey .. "#pendingInspectionQueue", "Pending Inspection Queue")
    schemaSavegame:register(XMLValueType.STRING, baseKey .. "#pendingRepairQueue", "Pending Repair Queue")
    schemaSavegame:register(XMLValueType.INT,    baseKey .. "#pendingProgressStepIndex", "Pending Progress Step Index")
    schemaSavegame:register(XMLValueType.FLOAT,  baseKey .. "#pendingProgressTotalTime", "Pending Progress Total Time")
    schemaSavegame:register(XMLValueType.FLOAT,  baseKey .. "#pendingProgressElapsedTime", "Pending Progress Elapsed Time")
    schemaSavegame:register(XMLValueType.FLOAT,  baseKey .. "#pendingMaintenanceServiceStart", "Pending Maintenance Service Start")
    schemaSavegame:register(XMLValueType.FLOAT,  baseKey .. "#pendingMaintenanceServiceTarget", "Pending Maintenance Service Target")
    schemaSavegame:register(XMLValueType.STRING, baseKey .. "#pendingPreventiveSystemStressStart", "Pending preventive per-system stress start values")
    schemaSavegame:register(XMLValueType.STRING, baseKey .. "#pendingPreventiveSystemStressTarget", "Pending preventive per-system stress target values")
    schemaSavegame:register(XMLValueType.STRING, baseKey .. "#systemsState", "Systems state snapshot")
    schemaSavegame:register(XMLValueType.STRING, baseKey .. "#factorStats", "Per-system accumulated factor stats")
    schemaSavegame:register(XMLValueType.STRING, baseKey .. "#pendingOverhaulSystemStart", "Pending overhaul per-system start values")
    schemaSavegame:register(XMLValueType.STRING, baseKey .. "#pendingOverhaulSystemTarget", "Pending overhaul per-system target values")
    schemaSavegame:register(XMLValueType.STRING, baseKey .. "#pendingOverhaulSystemStressStart", "Pending overhaul per-system stress start values")
    schemaSavegame:register(XMLValueType.STRING, baseKey .. "#pendingOverhaulSystemStressTarget", "Pending overhaul per-system stress target values")
    schemaSavegame:register(XMLValueType.STRING, baseKey .. "#pendingRepairSystemStressStart", "Pending repair per-system stress start values")
    schemaSavegame:register(XMLValueType.STRING, baseKey .. "#pendingRepairSystemStressTarget", "Pending repair per-system stress target values")
    schemaSavegame:register(XMLValueType.STRING, baseKey .. "#pendingRepairSystemStressStartRatio", "Pending repair per-system stress start ratios")

    local logKey = baseKey .. ".maintenanceLog.entry(?)"
    schemaSavegame:register(XMLValueType.INT,    logKey .. "#id", "Entry ID")
    schemaSavegame:register(XMLValueType.STRING, logKey .. "#type", "Maintenance Type")
    schemaSavegame:register(XMLValueType.FLOAT,  logKey .. "#price", "Price")
    schemaSavegame:register(XMLValueType.STRING, logKey .. "#date", "Date")
    
    schemaSavegame:register(XMLValueType.FLOAT,  logKey .. "#hours", "Operating Hours (OLD)")
    schemaSavegame:register(XMLValueType.BOOL,   logKey .. "#aftermarket", "Is Aftermarket Parts (OLD)")
    schemaSavegame:register(XMLValueType.STRING, logKey .. "#breakdowns", "Selected Breakdowns List (OLD)")
    schemaSavegame:register(XMLValueType.STRING, logKey .. "#info", "Additional Info (OLD)")
    schemaSavegame:register(XMLValueType.STRING, logKey .. "#location", "Workshop Location")
    schemaSavegame:register(XMLValueType.STRING, logKey .. "#optionOne", "Option One")
    schemaSavegame:register(XMLValueType.STRING, logKey .. "#optionTwo", "Option Two")
    schemaSavegame:register(XMLValueType.BOOL,   logKey .. "#optionThree", "Option Three")
    schemaSavegame:register(XMLValueType.STRING, logKey .. "#isVisible", "is Visible in Log")
    schemaSavegame:register(XMLValueType.BOOL,   logKey .. "#isCompleted", "Is Completed")
    schemaSavegame:register(XMLValueType.BOOL,   logKey .. "#isLegacyEntry", "Legacy Migrated Entry Flag")
    local condKey = logKey .. ".conditionData"
    schemaSavegame:register(XMLValueType.INT,    condKey .. "#year", "Vehicle Year")
    schemaSavegame:register(XMLValueType.FLOAT,  condKey .. "#operatingHours", "Operating Hours")
    schemaSavegame:register(XMLValueType.FLOAT,  condKey .. "#age", "Vehicle Age")
    schemaSavegame:register(XMLValueType.FLOAT,  condKey .. "#condition", "Condition Level")
    schemaSavegame:register(XMLValueType.FLOAT,  condKey .. "#service", "Service Level")
    schemaSavegame:register(XMLValueType.STRING, condKey .. "#activeBreakdowns", "Active Breakdowns")
    schemaSavegame:register(XMLValueType.STRING, condKey .. "#selectedBreakdowns", "Selected Breakdowns")
    schemaSavegame:register(XMLValueType.STRING, condKey .. "#activeEffects", "Active Effects")
    schemaSavegame:register(XMLValueType.STRING, condKey .. "#activeIndicators", "Active Indicators")
    schemaSavegame:register(XMLValueType.FLOAT,  condKey .. "#reliability", "Reliability")
    schemaSavegame:register(XMLValueType.FLOAT,  condKey .. "#maintainability", "Maintainability")
    schemaSavegame:register(XMLValueType.STRING, condKey .. "#systems", "Per-system snapshot")
    schemaSavegame:register(XMLValueType.FLOAT,  condKey .. "#batterySoc", "Battery State Of Charge")
    
    schema:setXMLSpecializationType()
end

function AdvancedDamageSystem.registerEventListeners(vehicleType)
    log_dbg("registerEventListeners called for vehicleType:", vehicleType.name)
    SpecializationUtil.registerEventListener(vehicleType, "onLoad", AdvancedDamageSystem)
    SpecializationUtil.registerEventListener(vehicleType, "onPostLoad", AdvancedDamageSystem)
    SpecializationUtil.registerEventListener(vehicleType, "onDelete", AdvancedDamageSystem)
    SpecializationUtil.registerEventListener(vehicleType, "onLeaveVehicle", AdvancedDamageSystem)
    SpecializationUtil.registerEventListener(vehicleType, "onUpdate", AdvancedDamageSystem)
    SpecializationUtil.registerEventListener(vehicleType, "onWriteStream", AdvancedDamageSystem)
    SpecializationUtil.registerEventListener(vehicleType, "onReadStream", AdvancedDamageSystem)
    SpecializationUtil.registerEventListener(vehicleType, "onWriteUpdateStream", AdvancedDamageSystem)
    SpecializationUtil.registerEventListener(vehicleType, "onReadUpdateStream", AdvancedDamageSystem)
    SpecializationUtil.registerEventListener(vehicleType, "saveToXMLFile", AdvancedDamageSystem)
    SpecializationUtil.registerEventListener(vehicleType, "onRegisterActionEvents", AdvancedDamageSystem)
end

function AdvancedDamageSystem.registerOverwrittenFunctions(vehicleType)
    SpecializationUtil.registerOverwrittenFunction(vehicleType, "getCanMotorRun", ADS_Breakdowns.getCanMotorRun)
    SpecializationUtil.registerOverwrittenFunction(vehicleType, "startMotor", ADS_Breakdowns.startMotor)
    SpecializationUtil.registerOverwrittenFunction(vehicleType, "updateDamageAmount", AdvancedDamageSystem.updateDamageAmount)
    SpecializationUtil.registerOverwrittenFunction(vehicleType, "setLightsTypesMask", ADS_Breakdowns.setLightsTypesMask)
    SpecializationUtil.registerOverwrittenFunction(vehicleType, "getSpeedLimit", ADS_Breakdowns.getSpeedLimitOverwrite)
    SpecializationUtil.registerOverwrittenFunction(vehicleType, "updateVehiclePhysics", ADS_Breakdowns.updateVehiclePhysics)
    SpecializationUtil.registerOverwrittenFunction(vehicleType, "getIsDischargeNodeActive", ADS_Breakdowns.getIsDischargeNodeActiveOverwrite)
    SpecializationUtil.registerOverwrittenFunction(vehicleType, "updateConsumers", ADS_Breakdowns.updateConsumersOverwrite)
    SpecializationUtil.registerOverwrittenFunction(vehicleType, "addCutterArea", ADS_Breakdowns.addCutterAreaOverwrite)
    SpecializationUtil.registerOverwrittenFunction(vehicleType, "getDischargeNodeEmptyFactor", ADS_Breakdowns.getDischargeNodeEmptyFactorOverwrite)
    SpecializationUtil.registerOverwrittenFunction(vehicleType, "getSellPrice", AdvancedDamageSystem.getSellPrice)
    SpecializationUtil.registerOverwrittenFunction(vehicleType, "updateMotorTemperature", AdvancedDamageSystem.updateMotorTemperature)
    SpecializationUtil.registerOverwrittenFunction(vehicleType, "setOperatingTime", AdvancedDamageSystem.setOperatingTime)

    
end

function AdvancedDamageSystem.registerFunctions(vehicleType)
    log_dbg("registerFunctions called for vehicleType:", vehicleType.name)
    SpecializationUtil.registerFunction(vehicleType, "adsUpdate", AdvancedDamageSystem.adsUpdate)
    SpecializationUtil.registerFunction(vehicleType, "updateVehicleStateSnapshot", AdvancedDamageSystem.updateVehicleStateSnapshot)
    SpecializationUtil.registerFunction(vehicleType, "setADSUserExcluded", AdvancedDamageSystem.setADSUserExcluded)
    
    SpecializationUtil.registerFunction(vehicleType, "recalculateAndApplyEffects", AdvancedDamageSystem.recalculateAndApplyEffects)
    SpecializationUtil.registerFunction(vehicleType, "recalculateAndApplyIndicators", AdvancedDamageSystem.recalculateAndApplyIndicators)
    
    SpecializationUtil.registerFunction(vehicleType, "tryTriggerBreakdown", AdvancedDamageSystem.tryTriggerBreakdown)
    SpecializationUtil.registerFunction(vehicleType, "getRandomBreakdownBySystem", AdvancedDamageSystem.getRandomBreakdownBySystem)
    SpecializationUtil.registerFunction(vehicleType, "getRandomBreakdown", AdvancedDamageSystem.getRandomBreakdown)
    SpecializationUtil.registerFunction(vehicleType, "addBreakdown", AdvancedDamageSystem.addBreakdown)
    SpecializationUtil.registerFunction(vehicleType, "suspendBreakdown", AdvancedDamageSystem.suspendBreakdown)
    SpecializationUtil.registerFunction(vehicleType, "removeBreakdown", AdvancedDamageSystem.removeBreakdown)
    SpecializationUtil.registerFunction(vehicleType, "hasBreakdown", AdvancedDamageSystem.hasBreakdown)
    SpecializationUtil.registerFunction(vehicleType, "hasSystemBreakdowns", AdvancedDamageSystem.hasSystemBreakdowns)
    SpecializationUtil.registerFunction(vehicleType, "processBreakdowns", AdvancedDamageSystem.processBreakdowns)
    SpecializationUtil.registerFunction(vehicleType, "changeBreakdownStage", AdvancedDamageSystem.changeBreakdownStage)
    SpecializationUtil.registerFunction(vehicleType, "getActiveBreakdowns", AdvancedDamageSystem.getActiveBreakdowns)
    SpecializationUtil.registerFunction(vehicleType, "hasEffect", AdvancedDamageSystem.hasEffect)
    SpecializationUtil.registerFunction(vehicleType, "processGeneralWearBreakdown", AdvancedDamageSystem.processGeneralWearBreakdown)
    
    SpecializationUtil.registerFunction(vehicleType, "initService", AdvancedDamageSystem.initService)
    SpecializationUtil.registerFunction(vehicleType, "processService", AdvancedDamageSystem.processService)
    SpecializationUtil.registerFunction(vehicleType, "completeService", AdvancedDamageSystem.completeService)
    SpecializationUtil.registerFunction(vehicleType, "cancelService", AdvancedDamageSystem.cancelService)

    SpecializationUtil.registerFunction(vehicleType, "getServiceLevel", AdvancedDamageSystem.getServiceLevel)
    SpecializationUtil.registerFunction(vehicleType, "getConditionLevel", AdvancedDamageSystem.getConditionLevel)
    SpecializationUtil.registerFunction(vehicleType, "getSystemConditionLevel", AdvancedDamageSystem.getSystemConditionLevel)
    SpecializationUtil.registerFunction(vehicleType, "getSystemStressLevel", AdvancedDamageSystem.getSystemStressLevel)
    SpecializationUtil.registerFunction(vehicleType, "updateServiceLevel", AdvancedDamageSystem.updateServiceLevel)
    SpecializationUtil.registerFunction(vehicleType, "updateConditionLevel", AdvancedDamageSystem.updateConditionLevel)

    SpecializationUtil.registerFunction(vehicleType, "updateSystemConditionAndStress", AdvancedDamageSystem.updateSystemConditionAndStress)
    SpecializationUtil.registerFunction(vehicleType, "updateEngineSystem", AdvancedDamageSystem.updateEngineSystem)
    SpecializationUtil.registerFunction(vehicleType, "updateTransmissionSystem", AdvancedDamageSystem.updateTransmissionSystem)
    SpecializationUtil.registerFunction(vehicleType, "getTransmissionType", AdvancedDamageSystem.getTransmissionType)
    SpecializationUtil.registerFunction(vehicleType, "updateHydraulicsSystem", AdvancedDamageSystem.updateHydraulicsSystem)
    SpecializationUtil.registerFunction(vehicleType, "updateCoolingSystem", AdvancedDamageSystem.updateCoolingSystem)
    SpecializationUtil.registerFunction(vehicleType, "updateElectricalSystem", AdvancedDamageSystem.updateElectricalSystem)
    SpecializationUtil.registerFunction(vehicleType, "updateChassisSystem", AdvancedDamageSystem.updateChassisSystem)
    SpecializationUtil.registerFunction(vehicleType, "updateFuelSystem", AdvancedDamageSystem.updateFuelSystem)
    SpecializationUtil.registerFunction(vehicleType, "updateWorkProcessSystem", AdvancedDamageSystem.updateWorkProcessSystem)
    SpecializationUtil.registerFunction(vehicleType, "applyInstantDamageToSystem", AdvancedDamageSystem.applyInstantDamageToSystem)
    
    SpecializationUtil.registerFunction(vehicleType, "isUnderService", AdvancedDamageSystem.isUnderService)
    SpecializationUtil.registerFunction(vehicleType, "isUnderRoof", AdvancedDamageSystem.isUnderRoof)
    SpecializationUtil.registerFunction(vehicleType, "isUnderRoofRaycastCallback", AdvancedDamageSystem.isUnderRoofRaycastCallback)
    SpecializationUtil.registerFunction(vehicleType, "getCurrentStatus", AdvancedDamageSystem.getCurrentStatus)
    
    SpecializationUtil.registerFunction(vehicleType, "updateThermalSystems", ADS_Thermal.updateThermalSystems)
    SpecializationUtil.registerFunction(vehicleType, "updateEngineThermalModel", ADS_Thermal.updateEngineThermalModel)
    SpecializationUtil.registerFunction(vehicleType, "updateTransmissionThermalModel", ADS_Thermal.updateTransmissionThermalModel)
    SpecializationUtil.registerFunction(vehicleType, "getSmoothedTemperature", ADS_Thermal.getSmoothedTemperature)
     
    SpecializationUtil.registerFunction(vehicleType, "updateBatteryChargingModel", ADS_Electrical.updateBatteryChargingModel)
    SpecializationUtil.registerFunction(vehicleType, "syncDeadBatteryEffect", ADS_Electrical.syncDeadBatteryEffect)
    SpecializationUtil.registerFunction(vehicleType, "syncVoltageSagEffect", ADS_Electrical.syncVoltageSagEffect)
    SpecializationUtil.registerFunction(vehicleType, "establishExternalPowerConnection", ADS_Electrical.establishExternalPowerConnection)
    SpecializationUtil.registerFunction(vehicleType, "clearExternalPowerConnection", ADS_Electrical.clearExternalPowerConnection)
    
    SpecializationUtil.registerFunction(vehicleType, "updateEngineConsumables", ADS_Consumptables.updateEngineConsumables)
    SpecializationUtil.registerFunction(vehicleType, "updateRadiatorClogging", ADS_Consumptables.updateRadiatorClogging)
    SpecializationUtil.registerFunction(vehicleType, "updateAirIntakeClogging", ADS_Consumptables.updateAirIntakeClogging)
    SpecializationUtil.registerFunction(vehicleType, "cleanRadiatorAndAirIntake", ADS_Consumptables.cleanRadiatorAndAirIntake)
    SpecializationUtil.registerFunction(vehicleType, "updateLubricationLevel", ADS_Consumptables.updateLubricationLevel)
    SpecializationUtil.registerFunction(vehicleType, "lubricateVehicle", ADS_Consumptables.lubricateVehicle)
    SpecializationUtil.registerFunction(vehicleType, "startFieldVisualInspectionProcess", ADS_Consumptables.startFieldVisualInspectionProcess)

    SpecializationUtil.registerFunction(vehicleType, "resetAiWorkerCruiseControlState", AdvancedDamageSystem.resetAiWorkerCruiseControlState)
    SpecializationUtil.registerFunction(vehicleType, "getAiWorkerImplementSpeedLimit", AdvancedDamageSystem.getAiWorkerImplementSpeedLimit)
    SpecializationUtil.registerFunction(vehicleType, "updateAiWorkerCruiseControl", AdvancedDamageSystem.updateAiWorkerCruiseControl)
    SpecializationUtil.registerFunction(vehicleType, "isWarrantyRepairCovered", AdvancedDamageSystem.isWarrantyRepairCovered)

    SpecializationUtil.registerFunction(vehicleType, "getServicePrice", AdvancedDamageSystem.getServicePrice)
    SpecializationUtil.registerFunction(vehicleType, "getServiceDuration", AdvancedDamageSystem.getServiceDuration)
    SpecializationUtil.registerFunction(vehicleType, "getServiceFinishTime", AdvancedDamageSystem.getServiceFinishTime)
    SpecializationUtil.registerFunction(vehicleType, "getBreakdownRepairPrice", AdvancedDamageSystem.getBreakdownRepairPrice)
    
    SpecializationUtil.registerFunction(vehicleType, "addEntryToMaintenanceLog", AdvancedDamageSystem.addEntryToMaintenanceLog)
    SpecializationUtil.registerFunction(vehicleType, "getLastInspectedCondition", AdvancedDamageSystem.getLastInspectedCondition)
    SpecializationUtil.registerFunction(vehicleType, "getLastInspectedService", AdvancedDamageSystem.getLastInspectedService)
    SpecializationUtil.registerFunction(vehicleType, "getLastInspectionDate", AdvancedDamageSystem.getLastInspectionDate)
    SpecializationUtil.registerFunction(vehicleType, "getLastMaintenanceDate", AdvancedDamageSystem.getLastMaintenanceDate)
    SpecializationUtil.registerFunction(vehicleType, "getMaintenanceInterval", AdvancedDamageSystem.getMaintenanceInterval)
    SpecializationUtil.registerFunction(vehicleType, "getHoursSinceLastMaintenance", AdvancedDamageSystem.getHoursSinceLastMaintenance)
    SpecializationUtil.registerFunction(vehicleType, "getLastServiceOptions", AdvancedDamageSystem.getLastServiceOptions)
    SpecializationUtil.registerFunction(vehicleType, "getOverhaulPerformedCount", AdvancedDamageSystem.getOverhaulPerformedCount)
    
end

-- ============================================================
--                         NETWORK STREAMS
-- ============================================================

function AdvancedDamageSystem:onWriteStream(streamId, connection)
    local spec = self.spec_AdvancedDamageSystem
    if spec == nil then return end

    streamWriteBool(streamId, spec.isExcludedByUser == true)
    streamWriteBool(streamId, spec.isExcludedVehicle == true)
    if spec.isExcludedVehicle then return end

    -- [Group 1] State
    streamWriteString(streamId, spec.currentState or "")
    streamWriteString(streamId, spec.plannedState or "")
    streamWriteFloat32(streamId, AdvancedDamageSystem.sanitizeNumber(spec.maintenanceTimer, 0, 0))

    -- [Group 2] Service context
    streamWriteString(streamId, spec.serviceOptionOne or "")
    streamWriteString(streamId, spec.serviceOptionTwo or "")
    streamWriteBool(streamId, spec.serviceOptionThree or false)
    streamWriteString(streamId, spec.workshopType or "")

    -- [Group 3] Telemetry
    streamWriteFloat32(streamId, AdvancedDamageSystem.sanitizeNumber(getSyncOperatingTime(self), 0, 0))
    streamWriteFloat32(streamId, AdvancedDamageSystem.sanitizeNumber(spec.realOperatingTime, getSyncOperatingTime(self), 0))
    streamWriteFloat32(streamId, AdvancedDamageSystem.sanitizeNumber(spec._fuelUsageRaw, 0, 0, 10000))
    streamWriteFloat32(streamId, AdvancedDamageSystem.sanitizeNumber(self:getMotorLoadPercentage(), 0, 0, 1.5))
    streamWriteFloat32(streamId, AdvancedDamageSystem.sanitizeNumber(spec.dynamicMotorLoad, 0, 0, 1.5))

    -- [Group 4] Thermal
    streamWriteFloat32(streamId, AdvancedDamageSystem.sanitizeNumber(spec.rawEngineTemperature, 20, -80, 160))
    streamWriteFloat32(streamId, AdvancedDamageSystem.sanitizeNumber(spec.rawTransmissionTemperature, 20, -80, 180))
    streamWriteFloat32(streamId, AdvancedDamageSystem.sanitizeNumber(spec.thermostatState, 0, 0, 1))
    streamWriteFloat32(streamId, AdvancedDamageSystem.sanitizeNumber(spec.transmissionThermostatState, 0, 0, 1))

    -- [Group 5] Electrical
    streamWriteFloat32(streamId, AdvancedDamageSystem.sanitizeNumber(spec.batterySoc, 1.0, 0, 1))
    streamWriteFloat32(streamId, AdvancedDamageSystem.sanitizeNumber(spec.batteryChargeAh, 0, 0, 10000))
    streamWriteFloat32(streamId, AdvancedDamageSystem.sanitizeNumber(spec.batteryTerminalVoltageV, 12.7, 0, 30))
    streamWriteFloat32(streamId, AdvancedDamageSystem.sanitizeNumber(spec.systemVoltageV, 12.7, 0, 30))

    -- [Group 6] Field care
    streamWriteFloat32(streamId, AdvancedDamageSystem.sanitizeNumber(spec.radiatorClogging, 0, 0))
    streamWriteFloat32(streamId, AdvancedDamageSystem.sanitizeNumber(spec.airIntakeClogging, 0, 0))
    streamWriteFloat32(streamId, AdvancedDamageSystem.sanitizeNumber(spec.lubricationLevel, 1.0, 0.0, 1.0))

    -- [Group 7] Wear
    streamWriteFloat32(streamId, AdvancedDamageSystem.sanitizeNumber(spec.serviceLevel, 1.0, 0.001))
    streamWriteFloat32(streamId, AdvancedDamageSystem.sanitizeNumber(spec.conditionLevel, 1.0, 0.001, 1.0))
    streamWriteString(streamId, ADS_Utils.serializeSystemsState(spec.systems))

    -- [Group 8] Breakdowns
    streamWriteString(streamId, ADS_Utils.serializeBreakdowns(spec.activeBreakdowns or {}))

    -- [Group 9] Service progress
    streamWriteInt32(streamId, spec.pendingProgressStepIndex or 0)
    streamWriteFloat32(streamId, AdvancedDamageSystem.sanitizeNumber(spec.pendingProgressTotalTime, 0, 0))
    streamWriteFloat32(streamId, AdvancedDamageSystem.sanitizeNumber(spec.pendingProgressElapsedTime, 0, 0))

    -- [Group 10] Maintenance log (variable-length: count + entries)
    local logCount = spec.maintenanceLog and #spec.maintenanceLog or 0
    streamWriteUInt16(streamId, logCount)
    for i = 1, logCount do
        local entry = spec.maintenanceLog[i]
        streamWriteString(streamId, ADS_Utils.serializeMaintenanceLogEntry(entry))
    end

    -- [Group 11] Driver controls
    streamWriteFloat32(streamId, AdvancedDamageSystem.sanitizeNumber(spec.acceleratorPedalLimit, 1.0, 0.0, 1.0))
end

function AdvancedDamageSystem:onReadStream(streamId, connection)
    local spec = self.spec_AdvancedDamageSystem
    if spec == nil then return end

    spec.isExcludedByUser = streamReadBool(streamId)
    spec.isExcludedVehicle = streamReadBool(streamId)
    if spec.isExcludedVehicle then return end
    local currentOperatingTime = self.getOperatingTime ~= nil and self:getOperatingTime() or self.operatingTime or 0

    -- [Group 1] State
    spec.currentState = streamReadString(streamId)
    spec.plannedState = streamReadString(streamId)
    spec.maintenanceTimer = AdvancedDamageSystem.sanitizeNumber(streamReadFloat32(streamId), 0, 0)

    -- [Group 2] Service context
    spec.serviceOptionOne = streamReadString(streamId)
    spec.serviceOptionTwo = streamReadString(streamId)
    spec.serviceOptionThree = streamReadBool(streamId)
    spec.workshopType = streamReadString(streamId)
    if spec.serviceOptionOne == "" then spec.serviceOptionOne = nil end
    if spec.serviceOptionTwo == "" then spec.serviceOptionTwo = nil end
    if spec.workshopType == "" then spec.workshopType = nil end

    -- [Group 3] Telemetry
    self:setOperatingTime(AdvancedDamageSystem.sanitizeNumber(streamReadFloat32(streamId), currentOperatingTime, 0), true)
    spec.realOperatingTime = AdvancedDamageSystem.sanitizeNumber(streamReadFloat32(streamId), currentOperatingTime, 0)
    if (spec.realOperatingTime == nil or spec.realOperatingTime <= 0) and currentOperatingTime > 0 then
        spec.realOperatingTime = currentOperatingTime
    end
    local syncFuelRaw = AdvancedDamageSystem.sanitizeNumber(streamReadFloat32(streamId), 0, 0, 10000)
    spec._fuelUsageRaw = syncFuelRaw
    spec.fuelUsage = syncFuelRaw
    spec._netMotorLoad = AdvancedDamageSystem.sanitizeNumber(streamReadFloat32(streamId), 0, 0, 1.5)
    spec._netDynamicMotorLoad = AdvancedDamageSystem.sanitizeNumber(streamReadFloat32(streamId), spec._netMotorLoad, 0, 1.5)
    spec.dynamicMotorLoad = spec._netDynamicMotorLoad
    if not self.isServer and self.spec_motorized ~= nil then
        self.spec_motorized.lastFuelUsage = syncFuelRaw
    end

    -- [Group 4] Thermal
    local syncRawEngTemp = AdvancedDamageSystem.sanitizeNumber(streamReadFloat32(streamId), 20, -80, 160)
    local syncRawTransTemp = AdvancedDamageSystem.sanitizeNumber(streamReadFloat32(streamId), syncRawEngTemp, -80, 180)
    spec.rawEngineTemperature = syncRawEngTemp
    spec.rawTransmissionTemperature = syncRawTransTemp
    spec._netTargetEngineTemp = syncRawEngTemp
    spec._netTargetTransmissionTemp = syncRawTransTemp
    spec.engineTemperature = syncRawEngTemp
    spec.transmissionTemperature = syncRawTransTemp
    spec.thermostatState = AdvancedDamageSystem.sanitizeNumber(streamReadFloat32(streamId), 0, 0, 1)
    if spec.engTermPID ~= nil then
        spec.engTermPID.mechPos = spec.thermostatState
    end
    spec.transmissionThermostatState = AdvancedDamageSystem.sanitizeNumber(streamReadFloat32(streamId), 0, 0, 1)
    if spec.transTermPID ~= nil then
        spec.transTermPID.mechPos = spec.transmissionThermostatState
    end

    -- [Group 5] Electrical
    spec.batterySoc = AdvancedDamageSystem.sanitizeNumber(streamReadFloat32(streamId), 1.0, 0, 1)
    spec.batteryChargeAh = AdvancedDamageSystem.sanitizeNumber(streamReadFloat32(streamId), 0, 0, 10000)
    spec.batteryTerminalVoltageV = AdvancedDamageSystem.sanitizeNumber(streamReadFloat32(streamId), 12.7, 0, 30)
    spec.rawBatteryTerminalVoltageV = spec.batteryTerminalVoltageV
    spec.systemVoltageV = AdvancedDamageSystem.sanitizeNumber(streamReadFloat32(streamId), spec.batteryTerminalVoltageV, 0, 30)
    spec.rawSystemVoltageV = spec.systemVoltageV

    -- [Group 6] Field care
    spec.radiatorClogging = AdvancedDamageSystem.sanitizeNumber(streamReadFloat32(streamId), 0, 0)
    spec.airIntakeClogging = AdvancedDamageSystem.sanitizeNumber(streamReadFloat32(streamId), 0, 0)
    spec.lubricationLevel = AdvancedDamageSystem.sanitizeNumber(streamReadFloat32(streamId), 1.0, 0.0, 1.0)

    -- [Group 7] Wear
    spec.serviceLevel = AdvancedDamageSystem.sanitizeNumber(streamReadFloat32(streamId), 1.0, 0.001)
    spec.conditionLevel = AdvancedDamageSystem.sanitizeNumber(streamReadFloat32(streamId), 1.0, 0.001, 1.0)
    local loadedSystems = ADS_Utils.deserializeSystemsState(streamReadString(streamId))
    for sysKey, sysData in pairs(loadedSystems) do
        if spec.systems[sysKey] ~= nil then
            spec.systems[sysKey].condition = sysData.condition
            spec.systems[sysKey].stress = sysData.stress
            spec.systems[sysKey].enabled = sysData.enabled
        end
    end

    -- [Group 8] Breakdowns
    spec.activeBreakdowns = ADS_Utils.deserializeBreakdowns(streamReadString(streamId))

    -- [Group 9] Service progress
    spec.pendingProgressStepIndex = streamReadInt32(streamId)
    spec.pendingProgressTotalTime = AdvancedDamageSystem.sanitizeNumber(streamReadFloat32(streamId), 0, 0)
    spec.pendingProgressElapsedTime = AdvancedDamageSystem.sanitizeNumber(streamReadFloat32(streamId), 0, 0)

    -- [Group 10] Maintenance log (variable-length)
    local logCount = streamReadUInt16(streamId)
    spec.maintenanceLog = {}
    for i = 1, logCount do
        local entry = ADS_Utils.deserializeMaintenanceLogEntry(streamReadString(streamId))
        if entry ~= nil then
            table.insert(spec.maintenanceLog, entry)
        end
    end

    -- [Group 11] Driver controls
    spec.acceleratorPedalLimit = AdvancedDamageSystem.sanitizeNumber(streamReadFloat32(streamId), 1.0, 0.0, 1.0)

    self:recalculateAndApplyEffects()
    self:recalculateAndApplyIndicators()
end

function AdvancedDamageSystem:onWriteUpdateStream(streamId, connection, dirtyMask)
    local spec = self.spec_AdvancedDamageSystem
    if spec == nil or spec.isExcludedVehicle then return end

    if not connection:getIsServer() then
        -- [1] State
        if streamWriteBool(streamId, bitAND(dirtyMask, spec.adsDirtyFlag_state) ~= 0) then
            streamWriteString(streamId, spec.currentState or "")
            streamWriteString(streamId, spec.plannedState or "")
            streamWriteFloat32(streamId, AdvancedDamageSystem.sanitizeNumber(spec.maintenanceTimer, 0, 0))
        end

        -- [2] Service context
        if streamWriteBool(streamId, bitAND(dirtyMask, spec.adsDirtyFlag_serviceContext) ~= 0) then
            streamWriteString(streamId, spec.serviceOptionOne or "")
            streamWriteString(streamId, spec.serviceOptionTwo or "")
            streamWriteBool(streamId, spec.serviceOptionThree or false)
            streamWriteString(streamId, spec.workshopType or "")
        end

        -- [3] Telemetry
        if streamWriteBool(streamId, bitAND(dirtyMask, spec.adsDirtyFlag_telemetry) ~= 0) then
            streamWriteFloat32(streamId, AdvancedDamageSystem.sanitizeNumber(getSyncOperatingTime(self), 0, 0))
            streamWriteFloat32(streamId, AdvancedDamageSystem.sanitizeNumber(spec.realOperatingTime, 0, 0))
            streamWriteFloat32(streamId, AdvancedDamageSystem.sanitizeNumber(spec._fuelUsageRaw, 0, 0, 10000))
            streamWriteFloat32(streamId, AdvancedDamageSystem.sanitizeNumber(self:getMotorLoadPercentage(), 0, 0, 1.5))
            streamWriteFloat32(streamId, AdvancedDamageSystem.sanitizeNumber(spec.dynamicMotorLoad, 0, 0, 1.5))
        end

        -- [4] Thermal
        if streamWriteBool(streamId, bitAND(dirtyMask, spec.adsDirtyFlag_thermal) ~= 0) then
            streamWriteFloat32(streamId, AdvancedDamageSystem.sanitizeNumber(spec.rawEngineTemperature, 20, -80, 160))
            streamWriteFloat32(streamId, AdvancedDamageSystem.sanitizeNumber(spec.rawTransmissionTemperature, 20, -80, 180))
            streamWriteFloat32(streamId, AdvancedDamageSystem.sanitizeNumber(spec.thermostatState, 0, 0, 1))
            streamWriteFloat32(streamId, AdvancedDamageSystem.sanitizeNumber(spec.transmissionThermostatState, 0, 0, 1))
        end

        -- [5] Electrical
        if streamWriteBool(streamId, bitAND(dirtyMask, spec.adsDirtyFlag_electrical) ~= 0) then
            streamWriteFloat32(streamId, AdvancedDamageSystem.sanitizeNumber(spec.batterySoc, 1.0, 0, 1))
            streamWriteFloat32(streamId, AdvancedDamageSystem.sanitizeNumber(spec.batteryChargeAh, 0, 0, 10000))
            streamWriteFloat32(streamId, AdvancedDamageSystem.sanitizeNumber(spec.batteryTerminalVoltageV, 12.7, 0, 30))
            streamWriteFloat32(streamId, AdvancedDamageSystem.sanitizeNumber(spec.systemVoltageV, 12.7, 0, 30))
        end

        -- [6] Field care
        if streamWriteBool(streamId, bitAND(dirtyMask, spec.adsDirtyFlag_fieldcare) ~= 0) then
            streamWriteFloat32(streamId, AdvancedDamageSystem.sanitizeNumber(spec.radiatorClogging, 0, 0))
            streamWriteFloat32(streamId, AdvancedDamageSystem.sanitizeNumber(spec.airIntakeClogging, 0, 0))
            streamWriteFloat32(streamId, AdvancedDamageSystem.sanitizeNumber(spec.lubricationLevel, 1.0, 0.0, 1.0))
        end

        -- [7] Wear
        if streamWriteBool(streamId, bitAND(dirtyMask, spec.adsDirtyFlag_wear) ~= 0) then
            streamWriteFloat32(streamId, AdvancedDamageSystem.sanitizeNumber(spec.serviceLevel, 1.0, 0.001))
            streamWriteFloat32(streamId, AdvancedDamageSystem.sanitizeNumber(spec.conditionLevel, 1.0, 0.001, 1.0))
            streamWriteString(streamId, ADS_Utils.serializeSystemsState(spec.systems))
        end

        -- [8] Breakdowns
        if streamWriteBool(streamId, bitAND(dirtyMask, spec.adsDirtyFlag_breakdowns) ~= 0) then
            streamWriteString(streamId, ADS_Utils.serializeBreakdowns(spec.activeBreakdowns or {}))
        end

        -- [9] Service progress
        if streamWriteBool(streamId, bitAND(dirtyMask, spec.adsDirtyFlag_serviceProgress) ~= 0) then
            streamWriteInt32(streamId, spec.pendingProgressStepIndex or 0)
            streamWriteFloat32(streamId, AdvancedDamageSystem.sanitizeNumber(spec.pendingProgressTotalTime, 0, 0))
            streamWriteFloat32(streamId, AdvancedDamageSystem.sanitizeNumber(spec.pendingProgressElapsedTime, 0, 0))
        end
    end
end

function AdvancedDamageSystem:onReadUpdateStream(streamId, timestamp, connection)
    local spec = self.spec_AdvancedDamageSystem
    if spec == nil or spec.isExcludedVehicle then return end
    local currentOperatingTime = self.getOperatingTime ~= nil and self:getOperatingTime() or self.operatingTime or 0

    if connection:getIsServer() then
        -- [1] State
        if streamReadBool(streamId) then
            spec.currentState = streamReadString(streamId)
            spec.plannedState = streamReadString(streamId)
            spec.maintenanceTimer = AdvancedDamageSystem.sanitizeNumber(streamReadFloat32(streamId), 0, 0)
        end

        -- [2] Service context
        if streamReadBool(streamId) then
            spec.serviceOptionOne = streamReadString(streamId)
            spec.serviceOptionTwo = streamReadString(streamId)
            spec.serviceOptionThree = streamReadBool(streamId)
            spec.workshopType = streamReadString(streamId)
            if spec.serviceOptionOne == "" then spec.serviceOptionOne = nil end
            if spec.serviceOptionTwo == "" then spec.serviceOptionTwo = nil end
            if spec.workshopType == "" then spec.workshopType = nil end
        end

        -- [3] Telemetry
        if streamReadBool(streamId) then
            self:setOperatingTime(AdvancedDamageSystem.sanitizeNumber(streamReadFloat32(streamId), currentOperatingTime, 0), true)
            spec.realOperatingTime = AdvancedDamageSystem.sanitizeNumber(streamReadFloat32(streamId), currentOperatingTime, 0)
            if (spec.realOperatingTime == nil or spec.realOperatingTime <= 0) and currentOperatingTime > 0 then
                spec.realOperatingTime = currentOperatingTime
            end
            spec._fuelUsageRaw = AdvancedDamageSystem.sanitizeNumber(streamReadFloat32(streamId), 0, 0, 10000)
            spec._netMotorLoad = AdvancedDamageSystem.sanitizeNumber(streamReadFloat32(streamId), 0, 0, 1.5)
            spec._netDynamicMotorLoad = AdvancedDamageSystem.sanitizeNumber(streamReadFloat32(streamId), spec._netMotorLoad, 0, 1.5)
            spec.dynamicMotorLoad = spec._netDynamicMotorLoad
        end

        -- [4] Thermal
        if streamReadBool(streamId) then
            local syncRawEngTemp = AdvancedDamageSystem.sanitizeNumber(streamReadFloat32(streamId), 20, -80, 160)
            local syncRawTransTemp = AdvancedDamageSystem.sanitizeNumber(streamReadFloat32(streamId), syncRawEngTemp, -80, 180)
            spec.rawEngineTemperature = syncRawEngTemp
            spec.rawTransmissionTemperature = syncRawTransTemp
            spec._netTargetEngineTemp = syncRawEngTemp
            spec._netTargetTransmissionTemp = syncRawTransTemp
            spec.thermostatState = AdvancedDamageSystem.sanitizeNumber(streamReadFloat32(streamId), 0, 0, 1)
            if spec.engTermPID ~= nil then
                spec.engTermPID.mechPos = spec.thermostatState
            end
            spec.transmissionThermostatState = AdvancedDamageSystem.sanitizeNumber(streamReadFloat32(streamId), 0, 0, 1)
            if spec.transTermPID ~= nil then
                spec.transTermPID.mechPos = spec.transmissionThermostatState
            end
        end

        -- [5] Electrical
        if streamReadBool(streamId) then
            spec.batterySoc = AdvancedDamageSystem.sanitizeNumber(streamReadFloat32(streamId), 1.0, 0, 1)
            spec.batteryChargeAh = AdvancedDamageSystem.sanitizeNumber(streamReadFloat32(streamId), 0, 0, 10000)
            spec.batteryTerminalVoltageV = AdvancedDamageSystem.sanitizeNumber(streamReadFloat32(streamId), 12.7, 0, 30)
            spec.rawBatteryTerminalVoltageV = spec.batteryTerminalVoltageV
            spec.systemVoltageV = AdvancedDamageSystem.sanitizeNumber(streamReadFloat32(streamId), spec.batteryTerminalVoltageV, 0, 30)
            spec.rawSystemVoltageV = spec.systemVoltageV
        end

        -- [6] Field care
        if streamReadBool(streamId) then
            spec.radiatorClogging = AdvancedDamageSystem.sanitizeNumber(streamReadFloat32(streamId), 0, 0)
            spec.airIntakeClogging = AdvancedDamageSystem.sanitizeNumber(streamReadFloat32(streamId), 0, 0)
            spec.lubricationLevel = AdvancedDamageSystem.sanitizeNumber(streamReadFloat32(streamId), 1.0, 0.0, 1.0)
        end

        -- [7] Wear
        if streamReadBool(streamId) then
            spec.serviceLevel = AdvancedDamageSystem.sanitizeNumber(streamReadFloat32(streamId), 1.0, 0.001)
            spec.conditionLevel = AdvancedDamageSystem.sanitizeNumber(streamReadFloat32(streamId), 1.0, 0.001, 1.0)
            local loadedSystems = ADS_Utils.deserializeSystemsState(streamReadString(streamId))
            for sysKey, sysData in pairs(loadedSystems) do
                if spec.systems[sysKey] ~= nil then
                    spec.systems[sysKey].condition = sysData.condition
                    spec.systems[sysKey].stress = sysData.stress
                    spec.systems[sysKey].enabled = sysData.enabled
                end
            end
        end

        -- [8] Breakdowns
        if streamReadBool(streamId) then
            spec.activeBreakdowns = ADS_Utils.deserializeBreakdowns(streamReadString(streamId))
            self:recalculateAndApplyEffects()
            self:recalculateAndApplyIndicators()
        end

        -- [9] Service progress
        if streamReadBool(streamId) then
            spec.pendingProgressStepIndex = streamReadInt32(streamId)
            spec.pendingProgressTotalTime = AdvancedDamageSystem.sanitizeNumber(streamReadFloat32(streamId), 0, 0)
            spec.pendingProgressElapsedTime = AdvancedDamageSystem.sanitizeNumber(streamReadFloat32(streamId), 0, 0)
        end
    end
end
-- ============================================================
--                       SAVE & LOAD
-- ============================================================

function AdvancedDamageSystem:saveToXMLFile(xmlFile, key, usedModNames)
    log_dbg("saveToXMLFile called for vehicle:", self:getFullName(), "with key:", key)
    local spec = self.spec_AdvancedDamageSystem
    if spec ~= nil and not spec.isExcludedByDefault then
        xmlFile:setValue(key .. "#isExcludedByUser", spec.isExcludedByUser == true)
        local currentOperatingTime = self.getOperatingTime ~= nil and self:getOperatingTime() or self.operatingTime or 0
        local realOperatingTime = spec.realOperatingTime
        if (realOperatingTime == nil or realOperatingTime <= 0) and currentOperatingTime > 0 then
            realOperatingTime = currentOperatingTime
            spec.realOperatingTime = realOperatingTime
        end
        xmlFile:setValue(key .. "#service", spec.serviceLevel or 1.0)
        xmlFile:setValue(key .. "#condition", spec.conditionLevel or 1.0)
        xmlFile:setValue(
            key .. "#acceleratorPedalLimit",
            AdvancedDamageSystem.sanitizeNumber(spec.acceleratorPedalLimit, 1.0, 0.0, 1.0)
        )
        xmlFile:setValue(key .. "#realOperatingTime", realOperatingTime or currentOperatingTime)
        if xmlFile.handle ~= nil then
            setXMLFloat(xmlFile.handle, key .. "#realOperatingTime", tonumber(realOperatingTime or currentOperatingTime) or 0)
        end
        local breakdownString = ADS_Utils.serializeBreakdowns(spec.activeBreakdowns)
        xmlFile:setValue(key .. "#breakdowns", breakdownString)
        xmlFile:setValue(key .. "#state", spec.currentState or AdvancedDamageSystem.STATUS.READY)
        xmlFile:setValue(key .. "#plannedState", spec.plannedState or AdvancedDamageSystem.STATUS.READY)
        xmlFile:setValue(key .. "#maintenanceTimer", AdvancedDamageSystem.sanitizeNumber(spec.maintenanceTimer, 0, 0))
        xmlFile:setValue(key .. "#engineTemperature", AdvancedDamageSystem.sanitizeNumber(spec.engineTemperature, 20, -80, 160))
        xmlFile:setValue(key .. "#transmissionTemperature", AdvancedDamageSystem.sanitizeNumber(spec.transmissionTemperature, 20, -80, 180))
        xmlFile:setValue(key .. "#batterySoc", AdvancedDamageSystem.sanitizeNumber(spec.batterySoc, 1.0, 0, 1))
        xmlFile:setValue(key .. "#batteryChargeAh", AdvancedDamageSystem.sanitizeNumber(spec.batteryChargeAh, 0, 0, 10000))
        xmlFile:setValue(key .. "#batteryTempC", AdvancedDamageSystem.sanitizeNumber(spec.batteryTempC, 20, -80, 85))
        xmlFile:setValue(key .. "#radiatorClogging", math.max(spec.radiatorClogging or 0, 0))
        xmlFile:setValue(key .. "#airIntakeClogging", math.max(spec.airIntakeClogging or 0, 0))
        xmlFile:setValue(key .. "#lubricationLevel", math.clamp(spec.lubricationLevel or 1.0, 0.0, 1.0))
        xmlFile:setValue(key .. "#lastLubricationProcessedDay", spec.lastLubricationProcessedDay or 0)
        xmlFile:setValue(key .. "#thermostatState", AdvancedDamageSystem.sanitizeNumber(spec.thermostatState, 0.0, 0.0, 1.0))
        xmlFile:setValue(key .. "#transmissionThermostatState", AdvancedDamageSystem.sanitizeNumber(spec.transmissionThermostatState, 0.0, 0.0, 1.0))
        xmlFile:setValue(key .. "#lastInspPwr", spec.lastInspectedPower or 1)
        xmlFile:setValue(key .. "#lastInspBrk", spec.lastInspectedBrake or 1)
        xmlFile:setValue(key .. "#lastInspYld", spec.lastInspectedYieldReduction or 1)
        xmlFile:setValue(key .. "#serviceOptionOne", spec.serviceOptionOne or "")
        xmlFile:setValue(key .. "#serviceOptionTwo", spec.serviceOptionTwo or "")
        xmlFile:setValue(key .. "#serviceOptionThree", spec.serviceOptionThree or false)
        xmlFile:setValue(key .. "#workshopType", spec.workshopType or "")
        xmlFile:setValue(key .. "#pendingSelectedBreakdowns", table.concat(spec.pendingSelectedBreakdowns or {}, ","))
        xmlFile:setValue(key .. "#pendingServicePrice", ADS_Utils.encodeOptionalFloat(spec.pendingServicePrice))
        xmlFile:setValue(key .. "#pendingInspectionQueue", table.concat(spec.pendingInspectionQueue or {}, ","))
        xmlFile:setValue(key .. "#pendingRepairQueue", table.concat(spec.pendingRepairQueue or {}, ","))
        xmlFile:setValue(key .. "#pendingProgressStepIndex", spec.pendingProgressStepIndex or 0)
        xmlFile:setValue(key .. "#pendingProgressTotalTime", spec.pendingProgressTotalTime or 0)
        xmlFile:setValue(key .. "#pendingProgressElapsedTime", spec.pendingProgressElapsedTime or 0)
        xmlFile:setValue(key .. "#pendingMaintenanceServiceStart", ADS_Utils.encodeOptionalFloat(spec.pendingMaintenanceServiceStart))
        xmlFile:setValue(key .. "#pendingMaintenanceServiceTarget", ADS_Utils.encodeOptionalFloat(spec.pendingMaintenanceServiceTarget))
        xmlFile:setValue(key .. "#pendingPreventiveSystemStressStart", ADS_Utils.serializeNumericMap(spec.pendingPreventiveSystemStressStart))
        xmlFile:setValue(key .. "#pendingPreventiveSystemStressTarget", ADS_Utils.serializeNumericMap(spec.pendingPreventiveSystemStressTarget))
        xmlFile:setValue(key .. "#systemsState", ADS_Utils.serializeSystemsState(spec.systems))
        xmlFile:setValue(key .. "#factorStats", ADS_Utils.serializeNumericMap(flattenFactorStats(spec.factorStats)))
        xmlFile:setValue(key .. "#pendingOverhaulSystemStart", ADS_Utils.serializeNumericMap(spec.pendingOverhaulSystemStart))
        xmlFile:setValue(key .. "#pendingOverhaulSystemTarget", ADS_Utils.serializeNumericMap(spec.pendingOverhaulSystemTarget))
        xmlFile:setValue(key .. "#pendingOverhaulSystemStressStart", ADS_Utils.serializeNumericMap(spec.pendingOverhaulSystemStressStart))
        xmlFile:setValue(key .. "#pendingOverhaulSystemStressTarget", ADS_Utils.serializeNumericMap(spec.pendingOverhaulSystemStressTarget))
        xmlFile:setValue(key .. "#pendingRepairSystemStressStart", ADS_Utils.serializeNumericMap(spec.pendingRepairSystemStressStart))
        xmlFile:setValue(key .. "#pendingRepairSystemStressTarget", ADS_Utils.serializeNumericMap(spec.pendingRepairSystemStressTarget))
        xmlFile:setValue(key .. "#pendingRepairSystemStressStartRatio", ADS_Utils.serializeNumericMap(spec.pendingRepairSystemStressStartRatio))

        if spec.maintenanceLog and #spec.maintenanceLog > 0 then
            for i, entry in ipairs(spec.maintenanceLog) do
                local entryKey = string.format("%s.maintenanceLog.entry(%d)", key, i - 1)
                
                xmlFile:setValue(entryKey .. "#id", entry.id or 0)
                xmlFile:setValue(entryKey .. "#type", entry.type or "")
                xmlFile:setValue(entryKey .. "#price", entry.price or 0)
                xmlFile:setValue(entryKey .. "#date", ADS_Utils.serializeDate(entry.date)) 
                xmlFile:setValue(entryKey .. "#location", entry.location or "UNKNOWN")
                xmlFile:setValue(entryKey .. "#optionOne", entry.optionOne or "NONE")
                xmlFile:setValue(entryKey .. "#optionTwo", entry.optionTwo or "NONE")
                xmlFile:setValue(entryKey .. "#optionThree", entry.optionThree or false)
                xmlFile:setValue(entryKey .. "#isVisible", tostring(ADS_Utils.normalizeBoolValue(entry.isVisible, true)))
                xmlFile:setValue(entryKey .. "#isCompleted", ADS_Utils.normalizeBoolValue(entry.isCompleted, true))
                xmlFile:setValue(entryKey .. "#isLegacyEntry", ADS_Utils.normalizeBoolValue(entry.isLegacyEntry, false))

                if entry.conditionData then
                    local condKey = entryKey .. ".conditionData"
                    xmlFile:setValue(condKey .. "#year", entry.conditionData.year or 0)
                    xmlFile:setValue(condKey .. "#operatingHours", entry.conditionData.operatingHours or 0)
                    xmlFile:setValue(condKey .. "#age", entry.conditionData.age or 0)
                    xmlFile:setValue(condKey .. "#condition", entry.conditionData.condition or 1)
                    xmlFile:setValue(condKey .. "#service", entry.conditionData.service or 1)
                    xmlFile:setValue(condKey .. "#reliability", entry.conditionData.reliability or 1)
                    xmlFile:setValue(condKey .. "#maintainability", entry.conditionData.maintainability or 1)
                    xmlFile:setValue(condKey .. "#systems", ADS_Utils.serializeSystemsState(ADS_Utils.createSystemsSnapshot(entry.conditionData.systems)))
                    xmlFile:setValue(condKey .. "#batterySoc", entry.conditionData.batterySoc or 1)

                    if entry.conditionData.activeBreakdowns then
                        xmlFile:setValue(condKey .. "#activeBreakdowns", ADS_Utils.serializeBreakdowns(entry.conditionData.activeBreakdowns))
                    end
                    
                    if entry.conditionData.selectedBreakdowns and #entry.conditionData.selectedBreakdowns > 0 then
                        xmlFile:setValue(condKey .. "#selectedBreakdowns", table.concat(entry.conditionData.selectedBreakdowns, ","))
                    end
                    
                    if entry.conditionData.activeEffects then
                        xmlFile:setValue(condKey .. "#activeEffects", ADS_Utils.serializeEffectSnapshot(entry.conditionData.activeEffects))
                    end
                    
                    if entry.conditionData.activeIndicators then
                        local indKeys = {}
                        for indId, _ in pairs(entry.conditionData.activeIndicators) do 
                            table.insert(indKeys, tostring(indId)) 
                        end
                        xmlFile:setValue(condKey .. "#activeIndicators", table.concat(indKeys, ","))
                    end
                end
            end
        end
        
        log_dbg("Saved service:", spec.serviceLevel, "condition:", spec.conditionLevel)
        log_dbg("Saved breakdowns string:", breakdownString)
    end
end

function AdvancedDamageSystem:onLoad(savegame)
    log_dbg("onLoad called for vehicle:", self:getFullName())
    
    self.spec_AdvancedDamageSystem.isExcludedVehicle = false
    self.spec_AdvancedDamageSystem.isExcludedByDefault = false
    self.spec_AdvancedDamageSystem.isExcludedByUser = false
    self.spec_AdvancedDamageSystem.isElectricVehicle = false
    self.spec_AdvancedDamageSystem.isVehicleNeedLubricate = false
    self.spec_AdvancedDamageSystem.isVehicleNeedBlowOut = false

    self.spec_AdvancedDamageSystem.baseServiceLevel = 1.0
    self.spec_AdvancedDamageSystem.baseConditionLevel = 1.0
    self.spec_AdvancedDamageSystem.serviceLevel = self.spec_AdvancedDamageSystem.baseServiceLevel
    self.spec_AdvancedDamageSystem.conditionLevel = self.spec_AdvancedDamageSystem.baseConditionLevel
    self.spec_AdvancedDamageSystem.acceleratorPedalLimit = 1.0

    local currentOperatingTime = self.getOperatingTime ~= nil and self:getOperatingTime() or self.operatingTime or 0
    local existingRealOperatingTime = tonumber(self.spec_AdvancedDamageSystem.realOperatingTime) or 0
    self.spec_AdvancedDamageSystem.realOperatingTime = math.max(existingRealOperatingTime, currentOperatingTime)
    self.spec_AdvancedDamageSystem._prevConditionLevel = 0
    self.spec_AdvancedDamageSystem._allowAdsOperatingTimeWrite = false

    self.spec_AdvancedDamageSystem.systems = {
        engine = { name = AdvancedDamageSystem.SYSTEMS.ENGINE, condition = 1.0, stress = 0.0, enabled = true },
        transmission = { name = AdvancedDamageSystem.SYSTEMS.TRANSMISSION, condition = 1.0, stress = 0.0, enabled = true },
        hydraulics = { name = AdvancedDamageSystem.SYSTEMS.HYDRAULICS, condition = 1.0, stress = 0.0, enabled = true },
        cooling = { name = AdvancedDamageSystem.SYSTEMS.COOLING, condition = 1.0, stress = 0.0, enabled = true },
        electrical = { name = AdvancedDamageSystem.SYSTEMS.ELECTRICAL, condition = 1.0, stress = 0.0, enabled = true },
        chassis = { name = AdvancedDamageSystem.SYSTEMS.CHASSIS, condition = 1.0, stress = 0.0, enabled = true },
        workprocess = { name = AdvancedDamageSystem.SYSTEMS.WORKPROCESS, condition = 1.0, stress = 0.0, enabled = true },
        fuel = { name = AdvancedDamageSystem.SYSTEMS.FUEL, condition = 1.0, stress = 0.0, enabled = true }
    }
    self.spec_AdvancedDamageSystem.factorStats = createEmptyFactorStats(self.spec_AdvancedDamageSystem.systems)
    ensureFactorStats(self.spec_AdvancedDamageSystem, self)

    --- engine consumptables
    self.spec_AdvancedDamageSystem.engineLubricationLevel = 1.0
    self.spec_AdvancedDamageSystem.motorOil = {
        level = 1.0,
        quality = 1.0,
        contamination = 0.0,
        dilution = 0.0
    }
    self.spec_AdvancedDamageSystem.oilFilterClogging = 0.0
    self.spec_AdvancedDamageSystem.airFilterClogging = 0.0
    self.spec_AdvancedDamageSystem.airIntakeClogging = 0.0

    self.spec_AdvancedDamageSystem.extraConditionWear = 0
    self.spec_AdvancedDamageSystem.extraServiceWear = 0
    self.spec_AdvancedDamageSystem.extraBreakdownProbability = 0
    self.spec_AdvancedDamageSystem.extraEngineHeat = 0
    self.spec_AdvancedDamageSystem.extraTransmissionHeat = 0
    self.spec_AdvancedDamageSystem.extraCurrentPeak = 0
    
    self.spec_AdvancedDamageSystem.reliability = 1.0
    self.spec_AdvancedDamageSystem.maintainability = 1.0
    self.spec_AdvancedDamageSystem.year = 2000

    self.spec_AdvancedDamageSystem.activeBreakdowns = {}
    self.spec_AdvancedDamageSystem.activeEffects = {}
    self.spec_AdvancedDamageSystem.activeIndicators = {}
    self.spec_AdvancedDamageSystem.activeFunctions = {}
    self.spec_AdvancedDamageSystem.originalFunctions = {}
    self.spec_AdvancedDamageSystem.dynamicBreakdowns = {}

    self.spec_AdvancedDamageSystem.maintenanceLog = {}
    self.spec_AdvancedDamageSystem.lastInspectedPower = 1
    self.spec_AdvancedDamageSystem.lastInspectedBrake = 1
    self.spec_AdvancedDamageSystem.lastInspectedYieldReduction = 1
    
    self.spec_AdvancedDamageSystem.fuelUsage    = 0
    self.spec_AdvancedDamageSystem._fuelUsageRaw  = 0
    self.spec_AdvancedDamageSystem.lastBlinkingWarningMessage = ""
    self.spec_AdvancedDamageSystem.blinkingWarningTimer = 0
    self.spec_AdvancedDamageSystem.pendingSideNotifications = {}

    self.spec_AdvancedDamageSystem.startButtonActionEvents = {}
    self.spec_AdvancedDamageSystem.startButtonDown = false
    self.spec_AdvancedDamageSystem.startButtonHeld = false
    self.spec_AdvancedDamageSystem.startButtonUp = false
    self.spec_AdvancedDamageSystem.throttleControlActionEvents = {}
    self.spec_AdvancedDamageSystem.fullThrottleOverridePressed = false
    self.spec_AdvancedDamageSystem.throttleAdjustmentPressed = false
    self.spec_AdvancedDamageSystem.throttleAdjustmentModeActive = false

    self.spec_AdvancedDamageSystem.radiatorClogging = 0.0
    self.spec_AdvancedDamageSystem.lubricationLevel = 1.0
    self.spec_AdvancedDamageSystem.lastLubricationDay = nil
    self.spec_AdvancedDamageSystem.lastLubricationProcessedDay = g_currentMission ~= nil
        and g_currentMission.environment ~= nil
        and g_currentMission.environment.currentDay
        or 6

    self.spec_AdvancedDamageSystem.batterySoc = 1.0
    self.spec_AdvancedDamageSystem.batteryChargeAh = nil
    self.spec_AdvancedDamageSystem.batteryHealth = 1.0
    self.spec_AdvancedDamageSystem.batteryCapacityAh = ADS_Config.ELECTRICAL.BATTERY_NOMINAL_CAPACITY
    self.spec_AdvancedDamageSystem.batteryTempC = 0
    self.spec_AdvancedDamageSystem.batteryOpenCircuitVoltageV = 12.7
    self.spec_AdvancedDamageSystem.rawBatteryTerminalVoltageV = 12.7
    self.spec_AdvancedDamageSystem.batteryTerminalVoltageV = 12.7
    self.spec_AdvancedDamageSystem.rawSystemVoltageV = 12.7
    self.spec_AdvancedDamageSystem.systemVoltageV = 12.7
    self.spec_AdvancedDamageSystem.alternatorHealth = 1.0
    self.spec_AdvancedDamageSystem.iAltAvail = 0
    self.spec_AdvancedDamageSystem.iLoads = 0
    self.spec_AdvancedDamageSystem.externalPowerConnection = nil

    self.spec_AdvancedDamageSystem.engineTemperature = -99
    self.spec_AdvancedDamageSystem.rawEngineTemperature = -99
    self.spec_AdvancedDamageSystem._netTargetEngineTemp = nil
    self.spec_AdvancedDamageSystem._smoothedMotorLoad = 0
    self.spec_AdvancedDamageSystem._netMotorLoad = 0
    self.spec_AdvancedDamageSystem._netDynamicMotorLoad = 0
    self.spec_AdvancedDamageSystem.radiatorHealth = 1.0
    self.spec_AdvancedDamageSystem.fanClutchHealth = 1.0
    self.spec_AdvancedDamageSystem.thermostatState = 0.0
    self.spec_AdvancedDamageSystem.thermostatHealth = 1.0
    self.spec_AdvancedDamageSystem.thermostatStuckedPosition = nil
    self.spec_AdvancedDamageSystem.engTermPID = {
        integral = 0,
        lastError = 0
    }

    self.spec_AdvancedDamageSystem.transmissionTemperature = -99
    self.spec_AdvancedDamageSystem.rawTransmissionTemperature = -99
    self.spec_AdvancedDamageSystem._netTargetTransmissionTemp = nil
    self.spec_AdvancedDamageSystem.transmissionThermostatState = 0.0
    self.spec_AdvancedDamageSystem.transmissionThermostatHealth = 1.0
    self.spec_AdvancedDamageSystem.transmissionThermostatStuckedPosition = nil
    self.spec_AdvancedDamageSystem.transTermPID = {
        integral = 0,
        lastError = 0
    }
    self.spec_AdvancedDamageSystem.aiWorkerPid = {
        integral = 0,
        lastError = 0,
        filteredStress = 0,
        currentReduction = 0,
        baseCruiseSpeed = nil,
        applyTimer = 0,
        lastAppliedSpeed = nil
    }

    self.spec_AdvancedDamageSystem.debugData = {
        service = {
            totalWearRate = 0
        },
        condition = 0,
        airIntake = {
            fieldFactor = 1.0,
            dustFactor = 0.0,
            debrisFactor = 0.0,
            wetness = 0,
            wetnessFactor = 1.0,
            baseWetnessFactor = 1.0,
            isOnField = false,
            hasDust = false,
            hasDebris = false,
            totalMultiplier = 0.0
        },
        externalPower = {
            isValidConnection = false,
            distance = 0
        },
        drivetrain = {
        },

        engine = {
            condition = 0,
            stress = 0,
            totalWearRate = 0, 
            expiredServiceFactor = 0,
            motorLoadFactor = 0, 
            coldMotorFactor = 0, 
            hotMotorFactor = 0,
            breakdownProbability = 0,
            critBreakdownProbability = 0
        },

        transmission = {
            condition = 0,
            stress = 0,
            totalWearRate = 0, 
            expiredServiceFactor = 0,
            pullOverloadFactor = 0,
            heavyTrailerFactor = 0,
            heavyTrailerMassRatio = 0,
            upHillLoadFactor = 0,
            wheelSlipFactor = 0,
            luggingFactor = 0,
            coldMotorFactor = 0,
            breakdownProbability = 0,
            critBreakdownProbability = 0,
            pullOverloadTimer = 0
        },

        hydraulics = {
            condition = 0,
            stress = 0,
            totalWearRate = 0,
            expiredServiceFactor = 0,
            heavyLiftFactor = 0,
            heavyLiftMassRatio = 0,
            operatingFactor = 0,
            vibFactor = 0,
            vibSignal = 0,
            vibRaw = 0,
            vibFieldMultiplier = 1,
            coldOilFactor = 0,
            sharpAngleFactor = 0,
            ptoSharpAngleDeg = 0,
            breakdownProbability = 0,
            critBreakdownProbability = 0
        },

        cooling = {
            condition = 0,
            stress = 0,
            totalWearRate = 0,
            expiredServiceFactor = 0,
            highCoolingFactor = 0,
            overheatFactor = 0,
            coldShockFactor = 0,
            breakdownProbability = 0,
            critBreakdownProbability = 0
        },

        electrical = {
            condition = 0,
            stress = 0,
            totalWearRate = 0,
            expiredServiceFactor = 0,
            vibFactor = 0,
            vibSignal = 0,
            vibRaw = 0,
            vibFieldMultiplier = 1,
            lightsFactor = 0,
            crankingStressFactor = 0,
            overheatFactor = 0,
            breakdownProbability = 0,
            critBreakdownProbability = 0
        },

        chassis = {
            condition = 0,
            stress = 0,
            totalWearRate = 0,
            expiredServiceFactor = 0,
            vibFactor = 0,
            vibSignal = 0,
            vibRaw = 0,
            vibWheelCount = 0,
            vibSpeedFactor = 0,
            vibSpeedKmh = 0,
            vibAvgDensityType = 0,
            vibFieldMultiplier = 1,
            steerLoadFactor = 0,
            steerLowSpeedFactor = 0,
            steerGroundContact = 0,
            steerMoving = false,
            brakeMassFactor = 0,
            brakeMassRatio = 0,
            brakePedal = 0,
            parkingBrakeFactor = 0,
            parkingBrakeActive = 0,
            breakdownProbability = 0,
            critBreakdownProbability = 0
        },

        workprocess = {
            condition = 0,
            stress = 0,
            totalWearRate = 0,
            expiredServiceFactor = 0,
            wetCropFactor = 0,
            currentHarvestRatio = 1.0,
            currentHarvestPercent = 100.0,
            lastUnloadOriginalFactor = 1.0,
            lastUnloadFactor = 1.0,
            lastUnloadPercent = 100.0,
            breakdownProbability = 0,
            critBreakdownProbability = 0
        },

        fuel = {
            condition = 0,
            stress = 0,
            totalWearRate = 0,
            expiredServiceFactor = 0,
            lowFuelStarvationFactor = 0,
            coldFuelFactor = 0,
            idleDepositFactor = 0,
            highPressureFactor = 0,
            idleTimer = 0,
            fuelLevel = 0,
            fuelTemperature = 0,
            breakdownProbability = 0,
            critBreakdownProbability = 0
        },

        battery = {
            soc = 1.0,
            iAltAvail = 0,
            iLoads = 0,
            baseLoadA = 0,
            lightsLoadA = 0,
            cabFanA = 0,
            winterHeaterA = 0,
            peakPulseA = 0,
            iNet = 0,
            dAh = 0,
            altFactor = 0
        },

        radiator = {
            fieldFactor = 1.0,
            dustFactor = 0.0,
            debrisFactor = 0.0,
            workFactor = 1.0,
            wetness = 0,
            wetnessFactor = 1.0,
            baseWetnessFactor = 1.0,
            isOnField = false,
            hasDust = false,
            hasDebris = false,
            totalMultiplier = 0.0
        },

        engineTemp = {
            totalHeat = 0, 
            totalCooling = 0, 
            radiatorCooling = 0, 
            speedCooling = 0, 
            convectionCooling = 0,
            stiction = 0,
            waxSpeed = 0,
            kp = 0
        },

        transmissionTemp = {
            totalHeat = 0, 
            totalCooling = 0, 
            radiatorCooling = 0, 
            speedCooling = 0, 
            convectionCooling = 0,
            loadFactor = 0,
            slipFactor = 0,
            pullFactor = 0,
            wheelSlipFactor = 0,
            accFactor = 0,
            speedLimit = 0,
            cvtSlipActive = 0,
            cvtSlipLocked = 0,
            extraTransmissionHeat = 0,
            stiction = 0,
            waxSpeed = 0,
            kp = 0
        },

        aiWorker = {
            stress = 0,
            filteredStress = 0,
            error = 0,
            integral = 0,
            derivative = 0,
            reduction = 0,
            targetSpeed = 0,
            appliedSpeed = 0,
            baseCruiseSpeed = 0,
            loadStress = 0,
            engineStress = 0,
            transStress = 0
        }
    }

    self.spec_AdvancedDamageSystem.isExcludedFromPTOSharpAngleFactor = false
    self.spec_AdvancedDamageSystem.isUnderRoof = true
    self.spec_AdvancedDamageSystem.roofRaycastHit = false
    self.spec_AdvancedDamageSystem.roofRaycastResult = nil
    self.spec_AdvancedDamageSystem.roofLastRaycastTime = nil
    self.spec_AdvancedDamageSystem.roofWasStationary = false
    self.spec_AdvancedDamageSystem.dynamicMotorLoad = 0
    self.spec_AdvancedDamageSystem.avgDynamicMotorLoad = 0
    self.spec_AdvancedDamageSystem.avgSpeed = 0
    self.spec_AdvancedDamageSystem.activeDraftMaxForce = 0
    self.spec_AdvancedDamageSystem.activeDraftEffectiveForceCap = 0
    self.spec_AdvancedDamageSystem.isCranking = false
    self.spec_AdvancedDamageSystem.wheelSlipIntensity = 0
    self.spec_AdvancedDamageSystem.wheelSlipTutorialTimer = 0
    self.spec_AdvancedDamageSystem.luggingTutorialTimer = 0
    self.spec_AdvancedDamageSystem.avgTireGroundFrictionCoeff = 0
    self.spec_AdvancedDamageSystem.implements = {}
    self.spec_AdvancedDamageSystem.isImplementLifted = false
    self.spec_AdvancedDamageSystem.isImplementLowered = false
    self.spec_AdvancedDamageSystem.isImplementOperating = false
    self.spec_AdvancedDamageSystem.liftedMass = 0
    self.spec_AdvancedDamageSystem.operatingMass = 0
    self.spec_AdvancedDamageSystem.isPtoActive = false
    self.spec_AdvancedDamageSystem.maxConnectedPtoAngleDeg = 0
    self.spec_AdvancedDamageSystem.hasConnectedPto = false
    self.spec_AdvancedDamageSystem.hydraulicsMoveAlphaCache = {}
    self.spec_AdvancedDamageSystem.chassisVibState = {
        prevSuspension = {},
        smoothed = 0,
        raw = 0,
        signal = 0,
        wheelCount = 0,
        speedFactor = 0,
        avgDensityType = 0,
        fieldMultiplier = 1
    }
    self.spec_AdvancedDamageSystem.chassisSteerState = {
        prevPosition = nil,
        position = 0,
        deltaRate = 0,
        rateFactor = 0,
        groundContact = 0,
        isLowSpeedActive = false,
        isMoving = false
    }
    self.spec_AdvancedDamageSystem.chassisBrakeState = {
        pedal = 0,
        massRatio = 0,
        isBraking = false,
        isBrakingByAxis = false
    }
    self.spec_AdvancedDamageSystem.fuelState = {
        level = 0,
        currentUsageRatio = 0,
        temperature = 0,
        idleTimer = 0
    }
    self.spec_AdvancedDamageSystem.isHarvesting = false

    self.spec_AdvancedDamageSystem.onUpdateTimer = ADS_Config.ON_UPDATE_DELAY
    self.spec_AdvancedDamageSystem.updateVehicleStateTimerOne = ADS_Config.UPDATE_VEHICLE_STATE_DELAY_ONE
    self.spec_AdvancedDamageSystem.updateVehicleStateTimerTwo = ADS_Config.UPDATE_VEHICLE_STATE_DELAY_TWO
    self.spec_AdvancedDamageSystem.updateVehicleStateTimerThree = ADS_Config.UPDATE_VEHICLE_STATE_DELAY_THREE
    self.spec_AdvancedDamageSystem.metaUpdateTimer = math.random() * ADS_Config.META_UPDATE_DELAY
    self.spec_AdvancedDamageSystem.maintenanceTimer = 0
    self.spec_AdvancedDamageSystem.currentState = AdvancedDamageSystem.STATUS.READY
    self.spec_AdvancedDamageSystem.plannedState = AdvancedDamageSystem.STATUS.READY
    self.spec_AdvancedDamageSystem.workshopType = AdvancedDamageSystem.WORKSHOP.DEALER
    self.spec_AdvancedDamageSystem.serviceOptionOne = nil
    self.spec_AdvancedDamageSystem.serviceOptionTwo = nil
    self.spec_AdvancedDamageSystem.serviceOptionThree = false
    self.spec_AdvancedDamageSystem.pendingSelectedBreakdowns = {}
    self.spec_AdvancedDamageSystem.pendingServicePrice = nil
    self.spec_AdvancedDamageSystem.pendingInspectionQueue = {}
    self.spec_AdvancedDamageSystem.pendingRepairQueue = {}
    self.spec_AdvancedDamageSystem.pendingProgressStepIndex = 0
    self.spec_AdvancedDamageSystem.pendingProgressTotalTime = 0
    self.spec_AdvancedDamageSystem.pendingProgressElapsedTime = 0
    self.spec_AdvancedDamageSystem.pendingMaintenanceServiceStart = nil
    self.spec_AdvancedDamageSystem.pendingMaintenanceServiceTarget = nil
    self.spec_AdvancedDamageSystem.pendingPreventiveSystemStressStart = {}
    self.spec_AdvancedDamageSystem.pendingPreventiveSystemStressTarget = {}
    self.spec_AdvancedDamageSystem.pendingOverhaulSystemStart = {}
    self.spec_AdvancedDamageSystem.pendingOverhaulSystemTarget = {}
    self.spec_AdvancedDamageSystem.pendingOverhaulSystemStressStart = {}
    self.spec_AdvancedDamageSystem.pendingOverhaulSystemStressTarget = {}
    self.spec_AdvancedDamageSystem.pendingRepairSystemStressStart = {}
    self.spec_AdvancedDamageSystem.pendingRepairSystemStressTarget = {}
    self.spec_AdvancedDamageSystem.pendingRepairSystemStressStartRatio = {}


    -- Dirty flags for network differential sync
    if self.isServer then
        self.spec_AdvancedDamageSystem.adsDirtyFlag_state = self:getNextDirtyFlag()             -- [1] currentState, plannedState, maintenanceTimer
        self.spec_AdvancedDamageSystem.adsDirtyFlag_serviceContext = self:getNextDirtyFlag()    -- [2] serviceOptionOne, serviceOptionTwo, serviceOptionThree, workshopType
        self.spec_AdvancedDamageSystem.adsDirtyFlag_telemetry = self:getNextDirtyFlag()         -- [3] operatingTime, _fuelUsageRaw, _netMotorLoad, dynamicMotorLoad -- [5] telemetry
        self.spec_AdvancedDamageSystem.adsDirtyFlag_thermal = self:getNextDirtyFlag()           -- [4] rawEngineTemperature, rawTransmissionTemperature, thermostatState, transmissionThermostatState
        self.spec_AdvancedDamageSystem.adsDirtyFlag_electrical = self:getNextDirtyFlag()        -- [5] batterySoc, batteryChargeAh, batteryTerminalVoltageV, systemVoltageV
        self.spec_AdvancedDamageSystem.adsDirtyFlag_fieldcare = self:getNextDirtyFlag()         -- [6] radiatorClogging, airIntakeClogging, lubricationLevel
        self.spec_AdvancedDamageSystem.adsDirtyFlag_wear = self:getNextDirtyFlag()              -- [7] serviceLevel, conditionLevel, systems[...].condition, systems[...].stress
        self.spec_AdvancedDamageSystem.adsDirtyFlag_breakdowns = self:getNextDirtyFlag()        -- [8] activeBreakdowns
        self.spec_AdvancedDamageSystem.adsDirtyFlag_serviceProgress = self:getNextDirtyFlag()   -- [9] pendingProgressElapsedTime, pendingProgressTotalTime, pendingProgressStepIndex
    end
end

function AdvancedDamageSystem:onPostLoad(savegame)
    log_dbg("onPostLoad called for vehicle:", self:getFullName())
    local spec = self.spec_AdvancedDamageSystem
    local currentOperatingTime = self.getOperatingTime ~= nil and self:getOperatingTime() or self.operatingTime or 0

    spec.isExcludedByDefault = getIsExcludedFromADS(self)
    spec.isExcludedByUser = false
    if savegame ~= nil then
        local exclusionKey = savegame.key .. ".AdvancedDamageSystem#isExcludedByUser"
        spec.isExcludedByUser = ADS_Utils.normalizeBoolValue(savegame.xmlFile:getValue(exclusionKey, false), false)
    end
    spec.isExcludedVehicle = spec.isExcludedByDefault or spec.isExcludedByUser
    if spec.isExcludedByDefault then return end

    if spec ~= nil and savegame ~= nil then
        local key = savegame.key .. ".AdvancedDamageSystem"

        log_dbg("Attempting to load from key:", key)

        spec.serviceLevel = AdvancedDamageSystem.sanitizeNumber(savegame.xmlFile:getValue(key .. "#service", spec.serviceLevel), spec.serviceLevel or 1.0, 0.001)
        spec.conditionLevel = AdvancedDamageSystem.sanitizeNumber(savegame.xmlFile:getValue(key .. "#condition", spec.conditionLevel), spec.conditionLevel or 1.0, 0.001, 1.0)
        spec.acceleratorPedalLimit = AdvancedDamageSystem.sanitizeNumber(
            savegame.xmlFile:getValue(key .. "#acceleratorPedalLimit", 1.0),
            1.0,
            0.0,
            1.0
        )
        spec.currentState = savegame.xmlFile:getValue(key .. "#state", spec.currentState)
        spec.plannedState = savegame.xmlFile:getValue(key .. "#plannedState", spec.plannedState)
        spec.maintenanceTimer = AdvancedDamageSystem.sanitizeNumber(savegame.xmlFile:getValue(key .. "#maintenanceTimer", spec.maintenanceTimer), spec.maintenanceTimer or 0, 0)
        
        local loadedRealOperatingTime = nil
        if savegame.xmlFile:hasProperty(key .. "#realOperatingTime") then
            loadedRealOperatingTime = savegame.xmlFile:getValue(key .. "#realOperatingTime")
        end
        if loadedRealOperatingTime == nil and savegame.xmlFile.handle ~= nil then
            loadedRealOperatingTime = getXMLFloat(savegame.xmlFile.handle, key .. "#realOperatingTime")
        end
        if loadedRealOperatingTime ~= nil then
            spec.realOperatingTime = AdvancedDamageSystem.sanitizeNumber(loadedRealOperatingTime, currentOperatingTime, 0)
        else
            spec.realOperatingTime = currentOperatingTime
        end

        -- Load Breakdowns
        local breakdownString = savegame.xmlFile:getValue(key .. "#breakdowns", "")
        if breakdownString and breakdownString ~= "" then
            spec.activeBreakdowns = ADS_Utils.deserializeBreakdowns(breakdownString)
        else
            spec.activeBreakdowns = {}
        end

        -- Load Simple Variables
        spec.engineTemperature = AdvancedDamageSystem.sanitizeNumber(savegame.xmlFile:getValue(key .. "#engineTemperature", spec.engineTemperature), 20, -80, 160)
        spec.transmissionTemperature = AdvancedDamageSystem.sanitizeNumber(savegame.xmlFile:getValue(key .. "#transmissionTemperature", spec.transmissionTemperature), spec.engineTemperature, -80, 180)
        spec.batterySoc = AdvancedDamageSystem.sanitizeNumber(savegame.xmlFile:getValue(key .. "#batterySoc", spec.batterySoc), 1.0, 0, 1)
        local loadedBatteryChargeAh = savegame.xmlFile:getValue(key .. "#batteryChargeAh", spec.batteryChargeAh)
        spec.batteryChargeAh = loadedBatteryChargeAh ~= nil and AdvancedDamageSystem.sanitizeNumber(loadedBatteryChargeAh, 0, 0, 10000) or nil
        spec.batteryTempC = AdvancedDamageSystem.sanitizeNumber(savegame.xmlFile:getValue(key .. "#batteryTempC", spec.batteryTempC), 20, -80, 85)
        spec.radiatorClogging = math.max(savegame.xmlFile:getValue(key .. "#radiatorClogging", spec.radiatorClogging), 0)
        spec.airIntakeClogging = math.max(savegame.xmlFile:getValue(key .. "#airIntakeClogging", spec.airIntakeClogging), 0)
        spec.lubricationLevel = math.clamp(savegame.xmlFile:getValue(key .. "#lubricationLevel", spec.lubricationLevel), 0.0, 1.0)
        spec.lastLubricationProcessedDay = savegame.xmlFile:getValue(
            key .. "#lastLubricationProcessedDay",
            g_currentMission ~= nil and g_currentMission.environment ~= nil and g_currentMission.environment.currentDay or spec.lastLubricationProcessedDay or 0
        )
        spec.thermostatState = AdvancedDamageSystem.sanitizeNumber(savegame.xmlFile:getValue(key .. "#thermostatState", spec.thermostatState), spec.thermostatState or 0, 0.0, 1.0)
        spec.transmissionThermostatState = AdvancedDamageSystem.sanitizeNumber(savegame.xmlFile:getValue(key .. "#transmissionThermostatState", spec.transmissionThermostatState), spec.transmissionThermostatState or 0, 0.0, 1.0)
        if spec.engTermPID ~= nil then
            spec.engTermPID.mechPos = spec.thermostatState
        end
        if spec.transTermPID ~= nil then
            spec.transTermPID.mechPos = spec.transmissionThermostatState
        end
        spec.lastInspectedPower = savegame.xmlFile:getValue(key .. "#lastInspPwr", spec.lastInspectedPower)
        spec.lastInspectedBrake = savegame.xmlFile:getValue(key .. "#lastInspBrk", spec.lastInspectedBrake)
        spec.lastInspectedYieldReduction = savegame.xmlFile:getValue(key .. "#lastInspYld", spec.lastInspectedYieldReduction)
        spec.serviceOptionOne = savegame.xmlFile:getValue(key .. "#serviceOptionOne", spec.serviceOptionOne)
        spec.serviceOptionTwo = savegame.xmlFile:getValue(key .. "#serviceOptionTwo", spec.serviceOptionTwo)
        if spec.serviceOptionOne == "" then spec.serviceOptionOne = nil end
        if spec.serviceOptionTwo == "" then spec.serviceOptionTwo = nil end
        spec.serviceOptionThree = savegame.xmlFile:getValue(key .. "#serviceOptionThree", spec.serviceOptionThree)
        local loadedWorkshopType = savegame.xmlFile:getValue(key .. "#workshopType", "")
        if loadedWorkshopType ~= nil and loadedWorkshopType ~= "" then
            spec.workshopType = loadedWorkshopType
        end
        spec.pendingServicePrice = ADS_Utils.decodeOptionalFloat(savegame.xmlFile:getValue(key .. "#pendingServicePrice", spec.pendingServicePrice))
        spec.pendingSelectedBreakdowns = {}
        local pendingSelBdStr = savegame.xmlFile:getValue(key .. "#pendingSelectedBreakdowns", "")
        if pendingSelBdStr ~= nil and pendingSelBdStr ~= "" then
            for item in string.gmatch(pendingSelBdStr, "([^,]+)") do
                table.insert(spec.pendingSelectedBreakdowns, item)
            end
        end
        spec.pendingInspectionQueue = {}
        local pendingInspectionQueueStr = savegame.xmlFile:getValue(key .. "#pendingInspectionQueue", "")
        if pendingInspectionQueueStr ~= nil and pendingInspectionQueueStr ~= "" then
            for item in string.gmatch(pendingInspectionQueueStr, "([^,]+)") do
                table.insert(spec.pendingInspectionQueue, item)
            end
        end

        spec.pendingRepairQueue = {}
        local pendingRepairQueueStr = savegame.xmlFile:getValue(key .. "#pendingRepairQueue", "")
        if pendingRepairQueueStr ~= nil and pendingRepairQueueStr ~= "" then
            for item in string.gmatch(pendingRepairQueueStr, "([^,]+)") do
                table.insert(spec.pendingRepairQueue, item)
            end
        end

        spec.pendingProgressStepIndex = savegame.xmlFile:getValue(key .. "#pendingProgressStepIndex", spec.pendingProgressStepIndex)
        spec.pendingProgressTotalTime = savegame.xmlFile:getValue(key .. "#pendingProgressTotalTime", spec.pendingProgressTotalTime)
        spec.pendingProgressElapsedTime = savegame.xmlFile:getValue(key .. "#pendingProgressElapsedTime", spec.pendingProgressElapsedTime)
        spec.pendingMaintenanceServiceStart = ADS_Utils.decodeOptionalFloat(savegame.xmlFile:getValue(key .. "#pendingMaintenanceServiceStart", spec.pendingMaintenanceServiceStart))
        spec.pendingMaintenanceServiceTarget = ADS_Utils.decodeOptionalFloat(savegame.xmlFile:getValue(key .. "#pendingMaintenanceServiceTarget", spec.pendingMaintenanceServiceTarget))
        spec.pendingPreventiveSystemStressStart = ADS_Utils.deserializeNumericMap(savegame.xmlFile:getValue(key .. "#pendingPreventiveSystemStressStart", ""))
        spec.pendingPreventiveSystemStressTarget = ADS_Utils.deserializeNumericMap(savegame.xmlFile:getValue(key .. "#pendingPreventiveSystemStressTarget", ""))
        spec.pendingOverhaulSystemStart = ADS_Utils.deserializeNumericMap(savegame.xmlFile:getValue(key .. "#pendingOverhaulSystemStart", ""))
        spec.pendingOverhaulSystemTarget = ADS_Utils.deserializeNumericMap(savegame.xmlFile:getValue(key .. "#pendingOverhaulSystemTarget", ""))
        spec.pendingOverhaulSystemStressStart = ADS_Utils.deserializeNumericMap(savegame.xmlFile:getValue(key .. "#pendingOverhaulSystemStressStart", ""))
        spec.pendingOverhaulSystemStressTarget = ADS_Utils.deserializeNumericMap(savegame.xmlFile:getValue(key .. "#pendingOverhaulSystemStressTarget", ""))
        spec.pendingRepairSystemStressStart = ADS_Utils.deserializeNumericMap(savegame.xmlFile:getValue(key .. "#pendingRepairSystemStressStart", ""))
        spec.pendingRepairSystemStressTarget = ADS_Utils.deserializeNumericMap(savegame.xmlFile:getValue(key .. "#pendingRepairSystemStressTarget", ""))
        spec.pendingRepairSystemStressStartRatio = ADS_Utils.deserializeNumericMap(savegame.xmlFile:getValue(key .. "#pendingRepairSystemStressStartRatio", ""))
        local loadedFactorStatsFlat = ADS_Utils.deserializeNumericMap(savegame.xmlFile:getValue(key .. "#factorStats", ""))

        local loadedSystemsStateRaw = ADS_Utils.deserializeSystemsState(savegame.xmlFile:getValue(key .. "#systemsState", ""))
        local loadedSystemsState = {}
        for loadedKey, loadedData in pairs(loadedSystemsStateRaw) do
            loadedSystemsState[string.lower(tostring(loadedKey))] = loadedData
        end
        local hasSerializedSystemsState = next(loadedSystemsState) ~= nil

        if spec.systems == nil then
            spec.systems = {}
        end
        for systemKey, systemData in pairs(spec.systems) do
            if type(systemData) ~= "table" then
                systemData = {
                    condition = tonumber(systemData) or 1.0,
                    stress = 0.0,
                    enabled = true
                }
                spec.systems[systemKey] = systemData
            end

            local loadedData = loadedSystemsState[string.lower(tostring(systemKey))]
            if loadedData ~= nil then
                systemData.condition = math.clamp(tonumber(loadedData.condition) or systemData.condition or 1.0, 0.001, 1.0)
                systemData.stress = math.max(tonumber(loadedData.stress) or systemData.stress or 0.0, 0.0)
                systemData.enabled = ADS_Utils.normalizeBoolValue(loadedData.enabled, systemData.enabled ~= false)
            else
                if not hasSerializedSystemsState and spec.conditionLevel ~= nil then
                    systemData.condition = math.clamp(tonumber(spec.conditionLevel) or systemData.condition or 1.0, 0.001, 1.0)
                else
                    systemData.condition = math.clamp(tonumber(systemData.condition) or 1.0, 0.001, 1.0)
                end
                systemData.stress = math.max(tonumber(systemData.stress) or 0.0, 0.0)
                systemData.enabled = ADS_Utils.normalizeBoolValue(systemData.enabled, true)
            end

            systemData.name = ADS_Utils.getSystemNameByKey(AdvancedDamageSystem.SYSTEMS, systemKey)
        end
        ensureFactorStats(spec, self)
        applyFlattenedFactorStats(spec, loadedFactorStatsFlat)
        ensureFactorStats(spec, self)

        -- Load Maintenance Log
        spec.maintenanceLog = {}
        local i = 0
        while true do
            local entryKey = string.format("%s.maintenanceLog.entry(%d)", key, i)
            if not savegame.xmlFile:hasProperty(entryKey) then
                break
            end

            local entry = {
                id = savegame.xmlFile:getValue(entryKey .. "#id"),
                type = savegame.xmlFile:getValue(entryKey .. "#type"),
                price = savegame.xmlFile:getValue(entryKey .. "#price"),
                date = ADS_Utils.deserializeDate(savegame.xmlFile:getValue(entryKey .. "#date")),
                conditionData = {}
            }
            local condKey = entryKey .. ".conditionData"
            local hasConditionData = savegame.xmlFile:hasProperty(condKey)

            if hasConditionData then
                entry.location = savegame.xmlFile:getValue(entryKey .. "#location", "UNKNOWN")
                entry.optionOne = savegame.xmlFile:getValue(entryKey .. "#optionOne", "NONE")
                entry.optionTwo = savegame.xmlFile:getValue(entryKey .. "#optionTwo", "NONE")
                entry.optionThree = savegame.xmlFile:getValue(entryKey .. "#optionThree", false)
                entry.isVisible = ADS_Utils.normalizeBoolValue(savegame.xmlFile:getValue(entryKey .. "#isVisible", true), true)
                entry.isCompleted = ADS_Utils.normalizeBoolValue(savegame.xmlFile:getValue(entryKey .. "#isCompleted", true), true)
                entry.isLegacyEntry = ADS_Utils.normalizeBoolValue(savegame.xmlFile:getValue(entryKey .. "#isLegacyEntry", false), false)

                entry.conditionData.year = savegame.xmlFile:getValue(condKey .. "#year", 0)
                entry.conditionData.operatingHours = savegame.xmlFile:getValue(condKey .. "#operatingHours", 0)
                entry.conditionData.age = savegame.xmlFile:getValue(condKey .. "#age", 0)
                entry.conditionData.condition = savegame.xmlFile:getValue(condKey .. "#condition", 1)
                entry.conditionData.service = savegame.xmlFile:getValue(condKey .. "#service", 1)
                entry.conditionData.reliability = savegame.xmlFile:getValue(condKey .. "#reliability", 1)
                entry.conditionData.maintainability = savegame.xmlFile:getValue(condKey .. "#maintainability", 1)
                entry.conditionData.systems = ADS_Utils.createSystemsSnapshot(ADS_Utils.deserializeSystemsState(savegame.xmlFile:getValue(condKey .. "#systems", "")))
                entry.conditionData.batterySoc = savegame.xmlFile:getValue(condKey .. "#batterySoc", 1)

                local bdStr = savegame.xmlFile:getValue(condKey .. "#activeBreakdowns", "")
                entry.conditionData.activeBreakdowns = ADS_Utils.deserializeBreakdowns(bdStr) or {}

                local selBdStr = savegame.xmlFile:getValue(condKey .. "#selectedBreakdowns", "")
                entry.conditionData.selectedBreakdowns = ADS_Utils.parseCsvList(selBdStr)

                entry.conditionData.activeEffects = ADS_Utils.deserializeEffectSnapshot(savegame.xmlFile:getValue(condKey .. "#activeEffects", ""))

                entry.conditionData.activeIndicators = {}
                local indicatorIds = ADS_Utils.parseCsvList(savegame.xmlFile:getValue(condKey .. "#activeIndicators", ""))
                for _, indId in ipairs(indicatorIds) do
                    entry.conditionData.activeIndicators[indId] = true
                end
            else
                -- COMPAT(0.8.5.0): migrate legacy maintenance log entry format (hours/aftermarket/breakdowns/info).
                -- Remove this migration branch after legacy save migration window is over.
                local legacyAftermarket = ADS_Utils.normalizeBoolValue(savegame.xmlFile:getValue(entryKey .. "#aftermarket", false), false)
                local legacyOperatingHours = ADS_Utils.normalizeNumberValue(savegame.xmlFile:getValue(entryKey .. "#hours", 0), 0)
                local legacyBreakdowns = ADS_Utils.parseCsvList(savegame.xmlFile:getValue(entryKey .. "#breakdowns", ""))

                local optionOne = "NONE"
                local optionTwo = legacyAftermarket and AdvancedDamageSystem.PART_TYPES.AFTERMARKET or AdvancedDamageSystem.PART_TYPES.OEM
                local optionThree = false

                if entry.type == AdvancedDamageSystem.STATUS.INSPECTION then
                    optionOne = AdvancedDamageSystem.INSPECTION_TYPES.STANDARD
                    optionTwo = "NONE"
                elseif entry.type == AdvancedDamageSystem.STATUS.MAINTENANCE then
                    optionOne = AdvancedDamageSystem.MAINTENANCE_TYPES.STANDARD
                elseif entry.type == AdvancedDamageSystem.STATUS.REPAIR then
                    optionOne = AdvancedDamageSystem.REPAIR_TYPES.MEDIUM
                elseif entry.type == AdvancedDamageSystem.STATUS.OVERHAUL then
                    optionOne = AdvancedDamageSystem.OVERHAUL_TYPES.STANDARD
                else
                    optionTwo = "NONE"
                end

                entry.location = "UNKNOWN"
                entry.optionOne = optionOne
                entry.optionTwo = optionTwo
                entry.optionThree = optionThree
                entry.isVisible = true
                entry.isCompleted = true
                entry.isLegacyEntry = true

                entry.conditionData.year = spec.year or 0
                entry.conditionData.operatingHours = legacyOperatingHours
                entry.conditionData.age = self.age or 0
                entry.conditionData.condition = 1
                entry.conditionData.service = 1
                entry.conditionData.systems = {}
                entry.conditionData.batterySoc = 1
                entry.conditionData.activeBreakdowns = {}
                entry.conditionData.selectedBreakdowns = legacyBreakdowns
                entry.conditionData.activeEffects = {}
                entry.conditionData.activeIndicators = {}
                entry.conditionData.reliability = spec.reliability or 1
                entry.conditionData.maintainability = spec.maintainability or 1
            end

            table.insert(spec.maintenanceLog, entry)
            i = i + 1
        end

        -- Fill defaults
        if spec.serviceLevel == nil then spec.serviceLevel = spec.baseServiceLevel end
        if spec.conditionLevel == nil then spec.conditionLevel = spec.baseConditionLevel end
        if spec.maintenanceTimer == nil then spec.maintenanceTimer = 0 end
        if spec.currentState == nil then spec.currentState = AdvancedDamageSystem.STATUS.READY end
        if spec.plannedState == nil then spec.plannedState = AdvancedDamageSystem.STATUS.READY end
        if spec.serviceOptionThree == nil then spec.serviceOptionThree = false end
        if spec.pendingSelectedBreakdowns == nil then spec.pendingSelectedBreakdowns = {} end
        if spec.pendingInspectionQueue == nil then spec.pendingInspectionQueue = {} end
        if spec.pendingRepairQueue == nil then spec.pendingRepairQueue = {} end
        if spec.pendingProgressStepIndex == nil then spec.pendingProgressStepIndex = 0 end
        if spec.pendingProgressTotalTime == nil then spec.pendingProgressTotalTime = 0 end
        if spec.pendingProgressElapsedTime == nil then spec.pendingProgressElapsedTime = 0 end
        if spec.pendingPreventiveSystemStressStart == nil then spec.pendingPreventiveSystemStressStart = {} end
        if spec.pendingPreventiveSystemStressTarget == nil then spec.pendingPreventiveSystemStressTarget = {} end
        if spec.pendingOverhaulSystemStart == nil then spec.pendingOverhaulSystemStart = {} end
        if spec.pendingOverhaulSystemTarget == nil then spec.pendingOverhaulSystemTarget = {} end
        if spec.pendingOverhaulSystemStressStart == nil then spec.pendingOverhaulSystemStressStart = {} end
        if spec.pendingOverhaulSystemStressTarget == nil then spec.pendingOverhaulSystemStressTarget = {} end
        if spec.pendingRepairSystemStressStart == nil then spec.pendingRepairSystemStressStart = {} end
        if spec.pendingRepairSystemStressTarget == nil then spec.pendingRepairSystemStressTarget = {} end
        if spec.pendingRepairSystemStressStartRatio == nil then spec.pendingRepairSystemStressStartRatio = {} end
        if spec.aiWorkerPid == nil then
            spec.aiWorkerPid = {
                integral = 0,
                lastError = 0,
                filteredStress = 0,
                currentReduction = 0,
                baseCruiseSpeed = nil,
                applyTimer = 0,
                lastAppliedSpeed = nil
            }
        end
        self:updateConditionLevel()
    else
        spec.realOperatingTime = currentOperatingTime
    end

    if (spec.realOperatingTime == nil or spec.realOperatingTime <= 0) and currentOperatingTime > 0 then
        spec.realOperatingTime = currentOperatingTime
    end

    spec.isUnderRoof = self:isUnderRoof()

    spec.fieldInspection = spec.fieldInspection or {
        isActive = false,
        elapsedTime = 0,
        duration = ADS_Config.FIELD_CARE.VISUAL_INSPECTION_DURATION,
        startTime = 0,
        targetNode = nil,
        targetVehicle = nil,
        wasSoundStarted = false
    }

    -- Sounds Loading
    local xmlSoundFile = loadXMLFile("ads_sounds", AdvancedDamageSystem.modDirectory .. "sounds/ads_sounds.xml")
    if spec.samples == nil then
        spec.samples = {}
    end
    
    if xmlSoundFile ~= nil then
        local soundManager = g_soundManager
        local modDir = AdvancedDamageSystem.modDirectory
        local root = self.rootNode
        local i3d = self.i3dMappings
        
        spec.samples.starter = soundManager:loadSampleFromXML(xmlSoundFile, "sounds", "starter", modDir, root, 1, AudioGroup.VEHICLE, i3d, self)
        spec.samples.starterCranking = soundManager:loadSampleFromXML(xmlSoundFile, "sounds", "starterCranking", modDir, root, 1, AudioGroup.VEHICLE, i3d, self)
        spec.samples.starterCrankingEnd = soundManager:loadSampleFromXML(xmlSoundFile, "sounds", "starterCrankingEnd", modDir, root, 1, AudioGroup.VEHICLE, i3d, self)
        spec.samples.alarm = soundManager:loadSampleFromXML(xmlSoundFile, "sounds", "alarm", modDir, root, 1, AudioGroup.VEHICLE, i3d, self)
        spec.samples.warning = soundManager:loadSampleFromXML(xmlSoundFile, "sounds", "warning", modDir, root, 1, AudioGroup.VEHICLE, i3d, self)
        spec.samples.transmissionShiftFailed1 = soundManager:loadSampleFromXML(xmlSoundFile, "sounds", "transmissionShiftFailed1", modDir, root, 1, AudioGroup.VEHICLE, i3d, self)
        spec.samples.transmissionShiftFailed2 = soundManager:loadSampleFromXML(xmlSoundFile, "sounds", "transmissionShiftFailed2", modDir, root, 1, AudioGroup.VEHICLE, i3d, self)
        spec.samples.transmissionShiftFailed3 = soundManager:loadSampleFromXML(xmlSoundFile, "sounds", "transmissionShiftFailed3", modDir, root, 1, AudioGroup.VEHICLE, i3d, self)
        spec.samples.brakes1 = soundManager:loadSampleFromXML(xmlSoundFile, "sounds", "brakes1", modDir, root, 1, AudioGroup.VEHICLE, i3d, self)
        spec.samples.brakes2 = soundManager:loadSampleFromXML(xmlSoundFile, "sounds", "brakes2", modDir, root, 1, AudioGroup.VEHICLE, i3d, self)
        spec.samples.brakes3 = soundManager:loadSampleFromXML(xmlSoundFile, "sounds", "brakes3", modDir, root, 1, AudioGroup.VEHICLE, i3d, self)
        spec.samples.turboWhistle = soundManager:loadSampleFromXML(xmlSoundFile, "sounds", "turboWhistle", modDir, root, 1, AudioGroup.VEHICLE, i3d, self)
        spec.samples.fanNoice = soundManager:loadSampleFromXML(xmlSoundFile, "sounds", "fanNoice", modDir, root, 1, AudioGroup.VEHICLE, i3d, self)
        spec.samples.wheelHubBearingNoise = soundManager:loadSampleFromXML(xmlSoundFile, "sounds", "wheelHubBearingNoise", modDir, root, 1, AudioGroup.VEHICLE, i3d, self)
        spec.samples.vibrationNoice = soundManager:loadSampleFromXML(xmlSoundFile, "sounds", "vibrationNoice", modDir, root, 1, AudioGroup.VEHICLE, i3d, self)
        spec.samples.wheelSeizureGrind = soundManager:loadSampleFromXML(xmlSoundFile, "sounds", "wheelSeizureGrind", modDir, root, 1, AudioGroup.VEHICLE, i3d, self)
        spec.samples.gearDisengage1 = soundManager:loadSampleFromXML(xmlSoundFile, "sounds", "gearDisengage1", modDir, root, 1, AudioGroup.VEHICLE, i3d, self)
        spec.samples.engineKnocking = soundManager:loadSampleFromXML(xmlSoundFile, "sounds", "engineKnocking", modDir, root, 1, AudioGroup.VEHICLE, i3d, self)
        spec.samples.valveTrainNoise = soundManager:loadSampleFromXML(xmlSoundFile, "sounds", "valveTrainNoise", modDir, root, 1, AudioGroup.VEHICLE, i3d, self)
        spec.samples.inspection = soundManager:loadSampleFromXML(xmlSoundFile, "sounds", "inspection", modDir, root, 1, AudioGroup.VEHICLE, i3d, self)
        delete(xmlSoundFile)
    else
        log_dbg("ERROR: AdvancedDamageSystem - Could not load ads_sounds.xml")
    end

    spec.rawEngineTemperature = spec.engineTemperature
    spec.rawTransmissionTemperature = spec.transmissionTemperature

    spec.isElectricVehicle = getIsElectricVehicle(self)
    spec.hydraulicsMoveAlphaCache = {}

    local function resetIsMovingRecursive(vehicleObj, visited)
        if vehicleObj == nil or visited[vehicleObj] then
            return
        end
        visited[vehicleObj] = true

        if vehicleObj.spec_attacherJoints ~= nil then
            if vehicleObj.spec_attacherJoints.attacherJoints ~= nil then
                for _, jointDesc in pairs(vehicleObj.spec_attacherJoints.attacherJoints) do
                    if jointDesc ~= nil then
                        jointDesc.isMoving = false
                    end
                end
            end

            if vehicleObj.spec_attacherJoints.attachedImplements ~= nil then
                for _, implementData in pairs(vehicleObj.spec_attacherJoints.attachedImplements) do
                    if implementData ~= nil and implementData.object ~= nil then
                        resetIsMovingRecursive(implementData.object, visited)
                    end
                end
            end
        end
    end

    local function enableOrDisableSystems(vehicle)
        local spec = vehicle.spec_AdvancedDamageSystem
        for _, systemData in pairs(spec.systems) do
            -- disable engine for electric vehicles
            if systemData.name == AdvancedDamageSystem.SYSTEMS.ENGINE then
                if spec.isElectricVehicle then
                    systemData.enabled = false
                end
            -- disable transsmision for electric vehicles
            elseif systemData.name == AdvancedDamageSystem.SYSTEMS.TRANSMISSION then
                if spec.isElectricVehicle then
                    systemData.enabled = false
                end
            -- disable hydralic for trucks, cars, motorbikes
            elseif systemData.name == AdvancedDamageSystem.SYSTEMS.HYDRAULICS then
                local storeItem = g_storeManager:getItemByXMLFilename(vehicle.configFileName)
                local vtype = vehicle.type.name
                if storeItem.categoryName == "TRUCKS" or vtype == "car" or vtype == "carFillable" or vtype == "motorbike" then
                    systemData.enabled = false
                end
            -- disable cooling for trucks, cars, motorbikes
            elseif systemData.name == AdvancedDamageSystem.SYSTEMS.COOLING then
                if spec.isElectricVehicle then
                    systemData.enabled = false
                end
            -- electrical is  applicable for all vehicles
            elseif systemData.name == AdvancedDamageSystem.SYSTEMS.ELECTRICAL then
            -- chassis is applicable for all vehicles
            elseif systemData.name == AdvancedDamageSystem.SYSTEMS.CHASSIS  then
            --- disable fuel system for electric vehicles
            elseif systemData.name == AdvancedDamageSystem.SYSTEMS.FUEL then
                if spec.isElectricVehicle then
                    systemData.enabled = false
                end
            --- disables workprocess systems for tractors, cars etc.
            elseif systemData.name == AdvancedDamageSystem.SYSTEMS.WORKPROCESS then
                local vtype = vehicle.type.name
                if  vtype ~= 'combineDrivable' and
                    vtype ~= 'combineCutter' and 
                    vtype ~= 'combineCutterFruitPreparer' and -- add to yield sensor breakdown and test
                    vtype ~= 'cottonHarvester' and -- add to yield sensor breakdown and test
                    vtype ~= 'riceHarvester' and -- add to yield sensor breakdown and test
                    vtype ~= 'vineHarvester' then -- add to yield sensor breakdown and test

                        systemData.enabled = false
                        -- ricePlanter
                        -- balerDrivable
                        -- selfPropelledMower
                        -- woodHarvester
                end
            else
                systemData.enabled = true
            end
        end
    end

    local vtype = self.type.name
    spec.isExcludedFromPTOSharpAngleFactor = PTO_SHARP_ANGLE_EXCLUDED_TYPES[vtype] == true
    enableOrDisableSystems(self)
    spec.isVehicleNeedLubricate = getIsVehicleNeedLubticate(self)
    spec.isVehicleNeedBlowOut = getIsVehicleNeedBlowOut(self)
    resetIsMovingRecursive(self, {})

    --- for deneral wear and tear calculations
    spec._prevConditionLevel = self:getConditionLevel()

    --- for dirty-flag comparison
    --- [1] state
    spec._lastSyncState_currentState = spec.currentState
    spec._lastSyncState_plannedState = spec.plannedState
    spec._lastSyncState_maintenanceTimer = spec.maintenanceTimer
    --- [2] service context
    spec._lastSyncServiceContext_optionOne = spec.serviceOptionOne
    spec._lastSyncServiceContext_optionTwo = spec.serviceOptionTwo
    spec._lastSyncServiceContext_optionThree = spec.serviceOptionThree
    spec._lastSyncServiceContext_workshopType = spec.workshopType
    --- [3] telemetry
    spec._lastSyncTelemetry_operatingTime = getSyncOperatingTime(self)
    spec._lastSyncTelemetry_realOperatingTime = spec.realOperatingTime
    spec._lastSyncTelemetry_fuelUsageRaw = spec._fuelUsageRaw
    spec._lastSyncTelemetry_motorLoad  = getSyncMotorLoad(self)
    spec._lastSyncTelemetry_dynamicMotorLoad = tonumber(spec.dynamicMotorLoad) or 0
    --- [4] thermal
    spec._lastSyncThermal_rawEngineTemperature = spec.rawEngineTemperature
    spec._lastSyncThermal_rawTransmissionTemperature = spec.rawTransmissionTemperature
    spec._lastSyncThermal_thermostatState = spec.thermostatState
    spec._lastSyncThermal_transmissionThermostatState = spec.transmissionThermostatState
    --- [5] electrical
    spec._lastSyncElectrical_batterySoc = spec.batterySoc
    spec._lastSyncElectrical_batteryChargeAh = spec.batteryChargeAh
    spec._lastSyncElectrical_batteryTerminalVoltage = spec.batteryTerminalVoltageV
    spec._lastSyncElectrical_systemVoltage = spec.systemVoltageV
    --- [6] fieldcare
    spec._lastSyncFieldcare_radiatorClogging = spec.radiatorClogging
    spec._lastSyncFieldcare_airIntakeClogging = spec.airIntakeClogging
    spec._lastSyncFieldcare_lubricationLevel = spec.lubricationLevel
    --- [7] wear
    spec._lastSyncWear_serviceLevel = spec.serviceLevel
    spec._lastSyncWear_conditionLevel = spec.conditionLevel
    spec._lastSyncWear_systemsHash = computeSystemSyncHash(self)
    --- [8] breakdowns
    spec._lastSyncBreakdowns_serialized = ADS_Utils.serializeBreakdowns(spec.activeBreakdowns or {})
    --- [9] service
    spec._lastSyncServiceProgress_elapsed = spec.pendingProgressElapsedTime
    spec._lastSyncServiceProgress_step = spec.pendingProgressStepIndex
    spec._lastSyncServiceProgress_total = spec.pendingProgressTotalTime

    self:recalculateAndApplyEffects()
end

function AdvancedDamageSystem:onDelete()
    log_dbg("onDelete called for vehicle:", self:getFullName(), "ID:", self.uniqueId)
    local spec = self.spec_AdvancedDamageSystem

    if spec and spec.samples then
        g_soundManager:deleteSamples(spec.samples)
        log_dbg(" -> Sound samples deleted.")
    end

    if ADS_Main and ADS_Main.vehicles and self.uniqueId and ADS_Main.vehicles[self.uniqueId] then
        if ADS_Main.previousKey == self.uniqueId then
            ADS_Main.previousKey = nil
        end
        ADS_Main.vehicles[self.uniqueId] = nil
        ADS_Main.numVehicles = ADS_Main.numVehicles - 1
        log_dbg(" -> Removed from ADS_Main.vehicles list.")
    end
end

-- ==========================================================
--                        EVENTS
-- ==========================================================

function AdvancedDamageSystem:onLeaveVehicle(wasEntered)
    local spec = self.spec_AdvancedDamageSystem
    if spec == nil then
        return
    end

    spec.lastBlinkingWarningMessage = ""
    spec.blinkingWarningTimer = 0

    local hadStartInput = spec.startButtonDown or spec.startButtonHeld or spec.startButtonUp
    spec.startButtonDown = false
    spec.startButtonHeld = false
    spec.startButtonUp = false

    if hadStartInput then
        ADS_StartButtonEvent.send(self, false, false, false)
    end

    local hadFullThrottleInput = spec.fullThrottleOverridePressed == true
    spec.fullThrottleOverridePressed = false

    if hadFullThrottleInput then
        ADS_FullThrottleEvent.send(self, false)
    end

    spec.throttleAdjustmentPressed = false
    spec.throttleAdjustmentModeActive = false
end

function AdvancedDamageSystem.updateStartButtonActionEvents(self)
    if not self.isClient or not self:getIsActiveForInput(true) then
        return
    end

    local spec = self.spec_AdvancedDamageSystem
    local motorizedSpec = self.spec_motorized
    if spec == nil or motorizedSpec == nil or spec.startButtonActionEvents == nil then
        return
    end

    local automaticMotorStartEnabled = g_currentMission ~= nil
        and g_currentMission.missionInfo ~= nil
        and g_currentMission.missionInfo.automaticMotorStartEnabled == true

    for inputAction, actionEvent in pairs(spec.startButtonActionEvents) do
        local actionEventId = actionEvent.actionEventId
        local registeredEvent = actionEventId ~= nil
            and g_inputBinding.events ~= nil
            and g_inputBinding.events[actionEventId]
            or nil

        if registeredEvent ~= nil then
            g_inputBinding:setActionEventActive(actionEventId, true)

            if inputAction == InputAction.TOGGLE_MOTOR_STATE then
                g_inputBinding:setActionEventTextVisibility(actionEventId, not automaticMotorStartEnabled)

                local motorState = self:getMotorState()
                if motorState == MotorState.STARTING or motorState == MotorState.ON then
                    g_inputBinding:setActionEventTextPriority(actionEventId, GS_PRIO_VERY_LOW)
                    g_inputBinding:setActionEventText(actionEventId, motorizedSpec.turnOffText)
                else
                    g_inputBinding:setActionEventTextPriority(actionEventId, GS_PRIO_VERY_HIGH)
                    g_inputBinding:setActionEventText(actionEventId, motorizedSpec.turnOnText)
                end
            else
                g_inputBinding:setActionEventTextVisibility(actionEventId, false)
            end
        end
    end
end

function AdvancedDamageSystem:onRegisterActionEvents(isActiveForInput, isActiveForInputIgnoreSelection)
    if not self.isClient then
        return
    end

    local spec = self.spec_AdvancedDamageSystem
    local motorizedSpec = self.spec_motorized
    if spec == nil or motorizedSpec == nil then
        return
    end

    self:clearActionEventsTable(spec.startButtonActionEvents)
    self:clearActionEventsTable(spec.throttleControlActionEvents)

    if not isActiveForInputIgnoreSelection then
        if spec.fullThrottleOverridePressed then
            spec.fullThrottleOverridePressed = false
            ADS_FullThrottleEvent.send(self, false)
        end
        spec.throttleAdjustmentPressed = false
        spec.throttleAdjustmentModeActive = false
        return
    end

    if InputAction.ADS_FULL_THROTTLE ~= nil then
        local _, actionEventId = self:addActionEvent(
            spec.throttleControlActionEvents,
            InputAction.ADS_FULL_THROTTLE,
            self,
            AdvancedDamageSystem.onFullThrottleAction,
            true,
            true,
            false,
            true,
            nil
        )

        if actionEventId ~= nil then
            g_inputBinding:setActionEventTextVisibility(actionEventId, false)
        end
    end

    if InputAction.ADS_ADJUST_THROTTLE ~= nil then
        local _, actionEventId = self:addActionEvent(
            spec.throttleControlActionEvents,
            InputAction.ADS_ADJUST_THROTTLE,
            self,
            ADS_ThrottleControl.onAdjustmentAction,
            true,
            true,
            false,
            true,
            nil
        )

        if actionEventId ~= nil then
            g_inputBinding:setActionEventTextVisibility(actionEventId, false)
        end
    end

    local startInputActions = {
        InputAction.TOGGLE_MOTOR_STATE,
        InputAction.MOTOR_STATE_ON or "MOTOR_STATE_ON"
    }

    for _, inputAction in ipairs(startInputActions) do
        local motorizedActionEvent = motorizedSpec.actionEvents[inputAction]
        if motorizedActionEvent ~= nil and motorizedActionEvent.actionEventId ~= nil then
            g_inputBinding:removeActionEvent(motorizedActionEvent.actionEventId)
        end
        motorizedSpec.actionEvents[inputAction] = nil

        -- One composite event owns both the vanilla action and the ADS held-state tracking.
        local _, actionEventId = self:addActionEvent(
            spec.startButtonActionEvents,
            inputAction,
            self,
            ADS_Breakdowns.onStartButtonAction,
            true,
            true,
            false,
            true,
            nil,
            nil,
            true
        )

        if actionEventId ~= nil then
            g_inputBinding:setActionEventTextVisibility(actionEventId, false)
            g_inputBinding:setActionEventTextPriority(actionEventId, GS_PRIO_VERY_LOW)
        end
    end

    AdvancedDamageSystem.updateStartButtonActionEvents(self)
end

function AdvancedDamageSystem.onFullThrottleAction(self, actionName, inputValue, callbackState, isAnalog, isMouse, deviceCategory, binding)
    local spec = self ~= nil and self.spec_AdvancedDamageSystem or nil
    if spec == nil then
        return
    end

    local value = tonumber(inputValue) or 0
    local isPressed = binding ~= nil and binding.isPressed == true
    local fullThrottleOverridePressed = isPressed or value > 0.5

    if spec.fullThrottleOverridePressed ~= fullThrottleOverridePressed then
        spec.fullThrottleOverridePressed = fullThrottleOverridePressed
        ADS_FullThrottleEvent.send(self, fullThrottleOverridePressed)
    end
end

-- ==========================================================
--                        UPDATE
-- ==========================================================

local function getConditionLevelFromSellPrice(vehicle)
    local spec = vehicle.spec_AdvancedDamageSystem
    if spec == nil then return end

    local storeItem = g_storeManager:getItemByXMLFilename(vehicle.configFileName)
    if storeItem == nil then
        return 1.0
    end

    local price = StoreItemUtil.getDefaultPrice(storeItem, vehicle.configurations)
    if price == nil or price <= 0 then
        price = storeItem.price or vehicle:getPrice() or 0
    end

    local repaintPrice = Wearable.calculateRepaintPrice(price, vehicle:getWearTotalAmount())
    local repairPrice = vehicle:getRepairPrice()
    local vanillaSellPrice = Vehicle.calculateSellPrice(storeItem, vehicle.age, vehicle.operatingTime, price, repairPrice, repaintPrice)
    local adsSellPriceForCondition = vanillaSellPrice + repairPrice + (repaintPrice * 0.75)
    local targetCondition = math.clamp(adsSellPriceForCondition / price, 0.01, 1.0)
    return targetCondition
end

local function initializeVehicleConditionFromVanillaPrice(vehicle, resetBreakdowns)
    local spec = vehicle ~= nil and vehicle.spec_AdvancedDamageSystem or nil
    if vehicle == nil or spec == nil or spec.isExcludedVehicle then
        return false
    end

    spec.serviceLevel = 1 - vehicle:getDamageAmount()

    local targetCondition = getConditionLevelFromSellPrice(vehicle)
    for _, systemData in pairs(spec.systems or {}) do
        if type(systemData) == "table" then
            local random = math.random() * 0.2 + 0.9
            systemData.condition = math.clamp(targetCondition * random, 0.2, 1.0)
            systemData.stress = 0
            systemData.persistentWearRateState = 0
        end
    end

    vehicle:updateConditionLevel()
    vehicle:setDamageAmount(0.0, true)

    if resetBreakdowns then
        vehicle:removeBreakdown()

        if vehicle:getOperatingTime() > 0 then
            local operatingHours = tonumber(vehicle:getFormattedOperatingTime()) or 0
            local lifespanRatio = ADS_Config.CORE.DEFAULT_SYSTEM_WEAR / ADS_Config.CORE.BASE_SYSTEMS_WEAR
            local chance = operatingHours / (100 * lifespanRatio)
            chance = math.clamp(chance * ADS_Config.CORE.USED_VEHICLE_BREAKDOWN_PRESENCE_CHANGE_MUL, 0, ADS_Config.CORE.USED_VEHICLE_BREAKDOWN_PRESENCE_CHANGE_MAX)
            if math.random() < chance then
                vehicle:addBreakdown(vehicle:getRandomBreakdown())
            end
        end
    end

    return true, targetCondition
end

local function registerVehicle(vehicle)
    if ADS_Main and ADS_Main.vehicles and ADS_Main.vehicles[vehicle.uniqueId] == nil then
        if (vehicle.propertyState == 2 or vehicle.propertyState == 3 or vehicle.propertyState == 4) and vehicle.ownerFarmId ~= 0 and vehicle.ownerFarmId < 10 then

            local spec = vehicle.spec_AdvancedDamageSystem
            if spec == nil then return end

            log_dbg(" -> Registering vehicle in ADS_Main.vehicles list. ID:", vehicle.uniqueId)
            --- Registration in ADS_Main.vehicles
            ADS_Main.vehicles[vehicle.uniqueId] = vehicle
            ADS_Main.numVehicles = ADS_Main.numVehicles + 1
    
            --- if first mod load or used vehicle
            if vehicle.isServer then
                    if (vehicle:getFormattedOperatingTime() > 0.01 and spec.conditionLevel == spec.baseConditionLevel) then
                        -- Used vehicle logic
                        initializeVehicleConditionFromVanillaPrice(vehicle, true)
                    end

                    --- if first mod load and vehicle has no maintenance log, add initial entry with current condition and service levels
                    if (spec.maintenanceLog == nil or #spec.maintenanceLog == 0) then
                        vehicle:addEntryToMaintenanceLog(AdvancedDamageSystem.STATUS.INSPECTION, AdvancedDamageSystem.INSPECTION_TYPES.STANDARD, "NONE", false, 0)
                    end
            end

            --- Updating vehicle's year from Vehicle Years mod
            local storeItem = g_storeManager:getItemByXMLFilename(vehicle.configFileName)
            if storeItem ~= nil and storeItem.specs ~= nil and storeItem.specs.year ~= nil and tonumber(storeItem.specs.year) ~= nil then
                    spec.year = tonumber(storeItem.specs.year)
            end

            --- Updating vehicle's reliability and maintainability
            spec.reliability, spec.maintainability = AdvancedDamageSystem.getBrandReliability(vehicle)

            local factorStats = ensureFactorStats(spec, vehicle)
            local currentOperatingHours = getVehicleOperatingHours(vehicle)
            for _, systemStats in pairs(factorStats) do
                if type(systemStats) == "table" then
                    local operatingHours = tonumber(systemStats.operatingHours)
                    if operatingHours == nil or operatingHours < 0 then
                        systemStats.operatingHours = currentOperatingHours
                    end
                end
            end
        end
    end
end

local function syncColdEngineEffect(vehicle)
    local spec = vehicle.spec_AdvancedDamageSystem
    if spec == nil then return end

    if vehicle.isServer then
        local engTemp = AdvancedDamageSystem.sanitizeNumber(spec.rawEngineTemperature or spec.engineTemperature, -99, -99, 160)
        local breakdownId = 'COLD_ENGINE'

        if engTemp <= -10 and not vehicle:hasBreakdown(breakdownId) then
            vehicle:addBreakdown(breakdownId)
        elseif engTemp > -10 and vehicle:hasBreakdown(breakdownId) then
            vehicle:removeBreakdown(breakdownId)
        end
    end
end

local function syncOverheatProtection(vehicle, dt)
    local spec = vehicle.spec_AdvancedDamageSystem
    if spec == nil then return end
    local rawEngineTemp = AdvancedDamageSystem.sanitizeNumber(spec.rawEngineTemperature or spec.engineTemperature, -99, -99, 160)
    local rawTransmissionTemp = not hasCVTAddon(vehicle) and AdvancedDamageSystem.sanitizeNumber(spec.rawTransmissionTemperature or spec.transmissionTemperature, -99, -99, 180) or -99

    if vehicle.isServer and spec.year >= 2000 then
        local overheatProtectionId = 'OVERHEAT_PROTECTION'
        local overheatProtection = vehicle:getActiveBreakdowns()[overheatProtectionId]
        if overheatProtection and rawTransmissionTemp < 100 and rawEngineTemp < 100 then
            vehicle:removeBreakdown(overheatProtectionId)
        end
        if vehicle:getIsMotorStarted() then
            if (rawTransmissionTemp > 105 or rawEngineTemp > 105) and not overheatProtection then
                vehicle:addBreakdown(overheatProtectionId, 1)
                if vehicle.getIsControlled ~= nil and vehicle:getIsControlled() then
                    g_soundManager:playSample(spec.samples.alarm)
                end
            elseif overheatProtection then
                if vehicle:getCruiseControlState() ~= 0 then
                    vehicle:setCruiseControlState(0, true)
                end
                if (rawTransmissionTemp > 125 or rawEngineTemp > 125) and overheatProtection.stage < 4 then
                    vehicle:changeBreakdownStage(overheatProtectionId)
                    if vehicle.getIsControlled ~= nil and vehicle:getIsControlled() then
                        g_soundManager:playSample(spec.samples.alarm)
                    end
                elseif (rawTransmissionTemp > 115 or rawEngineTemp > 115) and overheatProtection.stage < 3 then
                    vehicle:changeBreakdownStage(overheatProtectionId)
                    if vehicle.getIsControlled ~= nil and vehicle:getIsControlled() then
                        g_soundManager:playSample(spec.samples.alarm)
                    end
                elseif (rawTransmissionTemp > 110 or rawEngineTemp > 110) and overheatProtection.stage < 2 then
                    vehicle:changeBreakdownStage(overheatProtectionId)
                    if vehicle.getIsControlled ~= nil and vehicle:getIsControlled() then
                        g_soundManager:playSample(spec.samples.alarm)
                    end
                end
            end
        end
    else
        if vehicle.isServer then
            local engineFailedEffect = spec.activeEffects.ENGINE_FAILURE
            if rawEngineTemp > 125 and not engineFailedEffect then
                if math.random() < ADS_Utils.getChancePerFrameFromMeanTime(dt, 3) then
                    vehicle:addBreakdown('ENGINE_JAM')
                end
            end
        end
    end
end

local function syncAirIntakeCloggingEffect(vehicle)
    local spec = vehicle.spec_AdvancedDamageSystem
    if spec == nil or not vehicle.isServer then return end

    local breakdownId = 'AIRINTAKE_CLOGGING'
    local shouldBeStage = 0
    local threshold = ADS_Config.FIELD_CARE.AIR_INTAKE_BREAKDOWN_THRESHOLD 

    if spec.airIntakeClogging > threshold then
        if spec.airIntakeClogging > (threshold + (threshold / 3 * 2)) then
            shouldBeStage = 3
        elseif spec.airIntakeClogging > (threshold + (threshold / 3)) then
            shouldBeStage = 2
        else
            shouldBeStage = 1
        end
        if not vehicle:hasBreakdown(breakdownId) then
            vehicle:addBreakdown(breakdownId, shouldBeStage)
        else
            local currentStage = vehicle:getActiveBreakdowns()[breakdownId].stage
            if currentStage ~= shouldBeStage then
                vehicle:changeBreakdownStage(breakdownId, shouldBeStage)
            end
        end
    else
        if vehicle:hasBreakdown(breakdownId) then
            vehicle:removeBreakdown(breakdownId)
        end
    end
end

local function syncDisableAiWorkers(vehicle)
    local spec = vehicle.spec_AdvancedDamageSystem
    if spec == nil or not vehicle.isServer then
        return
    end

    if spec.activeEffects ~= nil and next(spec.activeEffects) ~= nil then
        for _, effectData in pairs(spec.activeEffects) do
            if effectData ~= nil and effectData.extraData ~= nil and effectData.extraData.disableAi then
                local autoDriveActive = vehicle.ad ~= nil
                    and vehicle.ad.stateModule ~= nil
                    and vehicle.ad.stateModule.isActive ~= nil
                    and vehicle.ad.stateModule:isActive()

                if autoDriveActive and vehicle.stopAutoDrive ~= nil then
                    vehicle.ad.isStoppingWithError = true

                    if vehicle.ad.stateModule.setLoopsDone ~= nil then
                        vehicle.ad.stateModule:setLoopsDone(0)
                    end

                    vehicle:stopAutoDrive()
                end

                if vehicle:getIsAIActive() and vehicle.stopCurrentAIJob ~= nil then
                    vehicle:stopCurrentAIJob(AIMessageErrorVehicleBroken.new())
                end

                return
            end
        end
    end
end

local function hasEnteredPlayerInVehicleChain(rootVehicle)
    if rootVehicle == nil then
        return false
    end

    if rootVehicle.getIsEntered ~= nil and rootVehicle:getIsEntered() then
        return true
    end

    if rootVehicle.getChildVehicles ~= nil then
        for _, childVehicle in ipairs(rootVehicle:getChildVehicles()) do
            if childVehicle ~= nil and childVehicle.getIsEntered ~= nil and childVehicle:getIsEntered() then
                return true
            end
        end
    end

    return false
end

local function syncBlinkingWarning(vehicle, dt)
    local spec = vehicle.spec_AdvancedDamageSystem
    if spec == nil or not vehicle.isClient then return end

    if ADS_Config.CORE ~= nil and ADS_Config.CORE.ENABLE_WARNING_MESSAGES == false then
        return
    end

    local repeatDelayMs = 180000

    if spec.blinkingWarningTimer == nil then
        spec.blinkingWarningTimer = 0
    end

    if spec.lastBlinkingWarningMessage == nil then
        spec.lastBlinkingWarningMessage = ""
    end

    if spec.blinkingWarningTimer > 0 then
        spec.blinkingWarningTimer = math.max(spec.blinkingWarningTimer - dt, 0)
    end

    local candidateMessage = nil
    local isActiveForInput = vehicle:getIsActiveForInput(true)
    local isAiActive = vehicle:getIsAIActive()
    local isUnderService = vehicle:isUnderService()
    local isMotorStarted = vehicle:getIsMotorStarted()

    if isMotorStarted and isActiveForInput and not isAiActive and not spec.isElectricVehicle then
        local spec_motorized = vehicle.spec_motorized
        local motor = spec_motorized ~= nil and spec_motorized.motor or nil
        if motor ~= nil then
            local lastRpm = tonumber(motor:getLastModulatedMotorRpm()) or 0
            local maxRpm = math.max(tonumber(motor.maxRpm) or 0, 0.0001)
            local rpmLoad = lastRpm / maxRpm
            local motorLoad = 0

            if vehicle.getMotorLoad ~= nil then
                motorLoad = tonumber(vehicle:getMotorLoad()) or 0
            elseif vehicle.getMotorLoadPercentage ~= nil then
                motorLoad = tonumber(vehicle:getMotorLoadPercentage()) or 0
            end

            if spec.engineTemperature > -90 then
                if spec.engineTemperature <= ADS_Config.CORE.ENGINE_FACTOR_DATA.COLD_MOTOR_TEMP_THRESHOLD and rpmLoad > 0.75 then
                    candidateMessage = 'ads_spec_cold_engine_message'
                elseif spec.engineTemperature >= ADS_Config.CORE.ENGINE_FACTOR_DATA.OVERHEAT_MOTOR_THRESHOLD + 5 and motorLoad > 0.3 then
                    candidateMessage = 'ads_spec_overheat_engine_message'
                end
            end

            if candidateMessage == nil and spec.transmissionTemperature > -90 then
                if spec.transmissionTemperature >= ADS_Config.CORE.TRANSMISSION_FACTOR_DATA.OVERHEAT_TRANSMISSION_THRESHOLD + 5 and rpmLoad > 0.75 then
                    candidateMessage = 'ads_spec_overheat_transmission_message'
                end
            end
        end
    end

    --- Messages from breakdowns
    if spec.activeEffects ~= nil and next(spec.activeEffects) ~= nil then
        for _, effectData in pairs(spec.activeEffects) do
            if effectData ~= nil and effectData.extraData ~= nil and effectData.extraData.message ~= nil then
                if candidateMessage == nil and isActiveForInput and not isUnderService then
                    candidateMessage = effectData.extraData.message
                end
            end
        end
    end

    if candidateMessage ~= nil
            and isActiveForInput
            and not isAiActive
            and not isUnderService
            and (spec.blinkingWarningTimer == 0 or spec.lastBlinkingWarningMessage ~= candidateMessage) then
        g_currentMission:showBlinkingWarning(g_i18n:getText(candidateMessage), 3600)
        spec.lastBlinkingWarningMessage = candidateMessage
        spec.blinkingWarningTimer = repeatDelayMs
    end
end

local function syncSideNotifications(vehicle)
    local spec = vehicle.spec_AdvancedDamageSystem
    if spec == nil or not vehicle.isClient then
        return
    end

    if ADS_Config.CORE ~= nil and ADS_Config.CORE.ENABLE_WARNING_MESSAGES == false then
        return
    end

    if spec.pendingSideNotifications == nil or next(spec.pendingSideNotifications) == nil then
        return
    end

    if vehicle:getOwnerFarmId() ~= g_currentMission:getFarmId()
            or g_currentMission.hud == nil
            or g_currentMission.hud.addSideNotification == nil then
        return
    end

    for _, notificationText in ipairs(spec.pendingSideNotifications) do
        g_currentMission.hud:addSideNotification(ADS_Breakdowns.COLORS.WARNING, vehicle:getFullName() .. ": " .. notificationText)
    end

    spec.pendingSideNotifications = {}
end

local function syncFuelConsumption(vehicle)
    local spec = vehicle.spec_AdvancedDamageSystem
    if spec == nil then return end

    -- Fuel consumption sync (same approach as DashboardLive):
    -- Server: capture raw lastFuelUsage every frame for dirty-flag network sync.
    if vehicle.isServer and vehicle.spec_motorized ~= nil then
        if vehicle.getIsMotorStarted ~= nil and vehicle:getIsMotorStarted() then
            spec._fuelUsageRaw = AdvancedDamageSystem.sanitizeNumber(vehicle.spec_motorized.lastFuelUsage, 0, 0, 10000)
        else
            spec._fuelUsageRaw = 0
        end
    end
    -- Dedicated client: inject synced raw value into spec_motorized.lastFuelUsage
    -- so Motorized's own fuelUsageBuffer picks it up every frame (identical to DashboardLive).
    if vehicle.isClient and not vehicle.isServer and vehicle.spec_motorized ~= nil then
        vehicle.spec_motorized.lastFuelUsage = AdvancedDamageSystem.sanitizeNumber(spec._fuelUsageRaw, 0, 0, 10000)
    end
    -- Display: always read Motorized's own smoothed value (identical to dashboard gauge).
    if vehicle.isClient and vehicle.spec_motorized ~= nil then
        spec.fuelUsage = AdvancedDamageSystem.sanitizeNumber(vehicle.spec_motorized.lastFuelUsageDisplay, 0, 0, 10000)
    end
end

local function syncCVTaddonBreakdown(vehicle)
    if not hasCVTAddon(vehicle) then return end
    local spec = vehicle.spec_AdvancedDamageSystem
    if spec == nil or not vehicle.isServer then return end

    local breakdownId = 'CVT_ADDON_MALFUNCTION'
    local spec_CVTaddon = vehicle.spec_CVTaddon
    if spec_CVTaddon ~= nil then
        local shouldHaveBreakdown = spec_CVTaddon.CVTdamage > 60.0
        local shouldBeStage = 1
        if spec_CVTaddon.CVTdamage > 90.0 then
            shouldBeStage = 4
        elseif spec_CVTaddon.CVTdamage > 80.0 then
            shouldBeStage = 3
        elseif spec_CVTaddon.CVTdamage > 70.0 then
            shouldBeStage = 2
        end

        if shouldHaveBreakdown and not vehicle:hasBreakdown(breakdownId) then
            vehicle:addBreakdown(breakdownId, shouldBeStage)
        elseif not shouldHaveBreakdown and vehicle:hasBreakdown(breakdownId) then
            vehicle:removeBreakdown(breakdownId)
        elseif shouldHaveBreakdown and vehicle:hasBreakdown(breakdownId) then
            local currentStage = vehicle:getActiveBreakdowns()[breakdownId].stage
            if currentStage ~= shouldBeStage then
                vehicle:changeBreakdownStage(breakdownId, shouldBeStage)
            end
        end
    else
        if vehicle:hasBreakdown(breakdownId) then
            vehicle:removeBreakdown(breakdownId)
        end
    end
end

local function syncOverloadWarning(vehicle, dt)
    local spec = vehicle.spec_AdvancedDamageSystem
    if spec == nil or not vehicle.isServer then return end
    local period = 60000
    local wearScale = ADS_Config.CORE.BASE_SYSTEMS_WEAR / ADS_Config.CORE.DEFAULT_SYSTEM_WEAR
    local avgStressWarningThreshold = ADS_Config.CORE.AVG_STRESS_WARNING_THRESHOLD * ADS_Config.CORE.SYSTEM_STRESS_GLOBAL_MULTIPLIER * wearScale
    local avgStressCriticalThreshold = ADS_Config.CORE.AVG_STRESS_CRITICAL_THRESHOLD * ADS_Config.CORE.SYSTEM_STRESS_GLOBAL_MULTIPLIER * wearScale
    local sampleDurationMs = math.max(tonumber(dt) or 0, 1)
    local isMotorStarted = vehicle.getIsMotorStarted ~= nil and vehicle:getIsMotorStarted()

    local factorStats = ensureFactorStats(spec, vehicle)
    local stressMultipliers = ADS_Config.CORE.SYSTEM_STRESS_ACCUMULATION_MULTIPLIERS or {}
    local globalStressMultiplier = math.max(tonumber(ADS_Config.CORE.SYSTEM_STRESS_GLOBAL_MULTIPLIER) or 1.0, 0.0)

    local overloadFactorAliasesBySystem = {
        engine = { "mlf", "hmf", "lf" },
        transmission = { "pof", "htf", "lf", "wsf", "hotf" }
    }

    local shouldStage = 0
    local maxAvgStress = 0
    for systemName, systemData in pairs(factorStats) do
        if type(systemData) == "table" then
            local systemStressMultiplier = tonumber(stressMultipliers[systemName]) or 1.0
            local selectedAliases = overloadFactorAliasesBySystem[tostring(systemName)]
            local currentStress = 0

            if type(selectedAliases) == "table" then
                for _, alias in ipairs(selectedAliases) do
                    currentStress = currentStress + math.max(tonumber(systemData[alias]) or 0, 0)
                end
                currentStress = currentStress * systemStressMultiplier * globalStressMultiplier
            end

            if not isMotorStarted then
                systemData._prevStress = currentStress
                systemData._avgStress = 0
                systemData._avgStressSamples = {}

                if ADS_Config.DEBUG and spec.debugData ~= nil and spec.debugData[systemName] ~= nil then
                    spec.debugData[systemName]._avgStress = 0
                end
            else
            local previousStress = tonumber(systemData._prevStress)
            if previousStress == nil then
                previousStress = currentStress
            end

            local deltaStress = math.max(currentStress - previousStress, 0)
            local sampleRatePerHour = deltaStress * (60 * 60 * 1000) / sampleDurationMs
            systemData._prevStress = currentStress

            if type(systemData._avgStressSamples) ~= "table" then
                systemData._avgStressSamples = {}
            end

            local samples = systemData._avgStressSamples
            if sampleRatePerHour > 0 or #samples > 0 then
                table.insert(samples, {
                    durationMs = sampleDurationMs,
                    ratePerHour = sampleRatePerHour
                })
            end

            local totalSamplesDurationMs = 0
            local weightedSum = 0
            for _, sample in ipairs(samples) do
                local durationMs = math.max(tonumber(sample.durationMs) or 0, 0)
                local ratePerHour = tonumber(sample.ratePerHour) or 0
                totalSamplesDurationMs = totalSamplesDurationMs + durationMs
                weightedSum = weightedSum + ratePerHour * durationMs
            end

            while #samples > 0 and totalSamplesDurationMs > period do
                local oldest = samples[1]
                local oldestDurationMs = math.max(tonumber(oldest.durationMs) or 0, 0)
                local overflowMs = totalSamplesDurationMs - period

                if oldestDurationMs <= overflowMs then
                    totalSamplesDurationMs = totalSamplesDurationMs - oldestDurationMs
                    weightedSum = weightedSum - (tonumber(oldest.ratePerHour) or 0) * oldestDurationMs
                    table.remove(samples, 1)
                else
                    oldest.durationMs = oldestDurationMs - overflowMs
                    totalSamplesDurationMs = totalSamplesDurationMs - overflowMs
                    weightedSum = weightedSum - (tonumber(oldest.ratePerHour) or 0) * overflowMs
                end
            end

            if weightedSum <= 0 or totalSamplesDurationMs <= 0 then
                systemData._avgStress = 0
                systemData._avgStressSamples = {}
                samples = systemData._avgStressSamples
            else
                systemData._avgStress = math.max(weightedSum / period, 0)
                if systemData._avgStress > maxAvgStress then maxAvgStress = systemData._avgStress end
            end

            if ADS_Config.DEBUG and spec.debugData ~= nil and spec.debugData[systemName] ~= nil then
                spec.debugData[systemName]._avgStress = systemData._avgStress
            end

            local affectsOverloadBreakdown = type(selectedAliases) == "table" and #selectedAliases > 0
            if affectsOverloadBreakdown then
                if systemData._avgStress > avgStressCriticalThreshold then
                    shouldStage = 2
                elseif systemData._avgStress > avgStressWarningThreshold and shouldStage == 0 then
                    shouldStage = 1
                end
            end
            end
        end
    end
    local breakdownId = "STRESS_OVERLOAD"
    local activeBreakdowns = spec.activeBreakdowns or {}
    local currentBreakdown = activeBreakdowns[breakdownId]

    if shouldStage > 0 then
        if currentBreakdown == nil then
            vehicle:addBreakdown(breakdownId, shouldStage)
        elseif currentBreakdown.stage < shouldStage then
            vehicle:changeBreakdownStage(breakdownId, shouldStage)
        end
    elseif currentBreakdown ~= nil and maxAvgStress < avgStressWarningThreshold * 0.5 then
        vehicle:removeBreakdown(breakdownId)
    end
end

local function syncTutorialMessages(vehicle, dt)
    local spec = vehicle.spec_AdvancedDamageSystem
    if spec == nil or not vehicle.isClient or not ADS_Config.TUTORIAL_ENABLED then return end
    local messageData = ADS_Config.TUTORIAL_MESSAGES or {}
    --- hard start
    if spec.activeEffects ~= nil and spec.activeEffects.ENGINE_HARD_START_MODIFIER ~= nil then
        if vehicle:getIsMotorStarted() and not messageData.HARD_START then
            messageData.HARD_START = true
        end
    end

end

local function getSmoothedMotorLoad(vehicle, dt)
    local spec = vehicle.spec_AdvancedDamageSystem
    if spec == nil then return end

    if vehicle:getIsMotorStarted() then
        local rawLoad
        if vehicle.isServer then
            rawLoad = math.max(vehicle:getMotorLoadPercentage() or 0, 0)
        else
            rawLoad = math.max(spec._netMotorLoad or 0, 0)
        end
        local loadTau = 300
        local loadAlpha = math.min(dt / (loadTau + dt), 1)
        spec._smoothedMotorLoad = (spec._smoothedMotorLoad or 0) + loadAlpha * (rawLoad - (spec._smoothedMotorLoad or 0))
    else
        spec._smoothedMotorLoad = 0
    end
end

function AdvancedDamageSystem:onUpdate(dt, ...)
    local spec = self.spec_AdvancedDamageSystem
    if spec.isExcludedVehicle then return end

    self:updateVehicleStateSnapshot(dt)
    AdvancedDamageSystem.updateStartButtonActionEvents(self)
    ADS_ThrottleControl.update(self)

    local updateDelay = ADS_Config.ON_UPDATE_DELAY
    spec.onUpdateTimer = spec.onUpdateTimer + dt

    if spec.onUpdateTimer < updateDelay then
        return
    end

    -- State-based callbacks must only evaluate the current state once. Discard
    -- missed sampling intervals instead of replaying them with stale data.
    spec.onUpdateTimer = spec.onUpdateTimer % updateDelay
    local updateDt = updateDelay

    --- Registration in ADS_Main.vehicles and first load checks.
    registerVehicle(self)

    --- Temperature smoothing
    self:getSmoothedTemperature(updateDt)

    --- Fuel consumption
    syncFuelConsumption(self)

    --- smoothedMotorLoad
    getSmoothedMotorLoad(self, updateDt)

    --- Checking for cold engine effect
    syncColdEngineEffect(self)

    --- Checking for dead alternator or dead battery
    self:syncVoltageSagEffect(updateDt)

    --- Checking for airintake clogging
    syncAirIntakeCloggingEffect(self)

    --- Checking for dead battery if motor is off
    self:syncDeadBatteryEffect()
    
    --- Overheat protection for vehcile > 2000 year and engine failure from overheating for < 2000
    syncOverheatProtection(self, updateDt)

    --- CVT addon breakdown sync
    syncCVTaddonBreakdown(self)
    
    --- Blinking warning for currently controlled vehicle
    syncBlinkingWarning(self, updateDt)

    --- Side notifications for vehicles without players at the moment of the effect event
    syncSideNotifications(self)

    --- Disable AI workers for critical effects
    syncDisableAiWorkers(self)

    --- syncing tutorial messages
    syncTutorialMessages(self, updateDt)
    
    --- just in case, reset damage amount to 0 if it's not
    if self.isServer and self.getDamageAmount ~= nil and self:getDamageAmount() ~= 0 then self:setDamageAmount(0.0, true) end
    
    --- AI worker overload, temp control
    if ADS_Config.CORE.AI_OVERLOAD_AND_OVERHEAT_CONTROL then
        self:updateAiWorkerCruiseControl(updateDt)
    end

    --- Enables the thermal model for neutral vehicles on the map, should the player happen to use them
    if self.isServer and ADS_Main and ADS_Main.vehicles and ADS_Main.vehicles[self.uniqueId] == nil and self:getIsControlled() then
        self:updateThermalSystems(updateDt)
    end

    --- Random and permanent effects from breakdowns. Skip if spec.activeEffects is empty
    if spec ~= nil and spec.activeFunctions ~= nil and next(spec.activeFunctions) ~= nil then
        for _ , func in pairs(spec.activeFunctions) do
            func(self, updateDt)
        end
    end
end

function AdvancedDamageSystem:adsUpdate(dt, isWorkshopOpen)
    local spec = self.spec_AdvancedDamageSystem
    if spec.isExcludedVehicle then return end

    -- OP Time update for ADS vehicles
    local motorState = self.getMotorState ~= nil and self:getMotorState() or nil
    local currentOperatingTime = self.getOperatingTime ~= nil and self:getOperatingTime() or self.operatingTime or 0

    if (spec.realOperatingTime == nil or spec.realOperatingTime <= 0) and currentOperatingTime > 0 then
        spec.realOperatingTime = currentOperatingTime
    end

    if motorState == MotorState.ON then
        local operatingDt = dt or 0
        if g_modIsLoaded ~= nil and g_modIsLoaded["FS25_ingameTimeOperatingHours"] then
            local timeScale = getSafeMissionTimeScale()
            operatingDt = dt * timeScale
        end

        spec.realOperatingTime = (spec.realOperatingTime or 0) + dt
        spec._allowAdsOperatingTimeWrite = true
        self:setOperatingTime(currentOperatingTime + operatingDt, false)
        spec._allowAdsOperatingTimeWrite = false
    end

    self:updateThermalSystems(dt)
    self:updateBatteryChargingModel(dt)

    if self:isUnderService() then
        self:processService(dt)
    else
        if self:getIsOperating() and self.propertyState ~= 4 then
            self:updateRadiatorClogging(dt)
            self:updateAirIntakeClogging(dt)
            self:processBreakdowns(dt)
            self:tryTriggerBreakdown(dt)
        end

        -- service
        self:updateServiceLevel(dt)
        -- systems
        self:updateEngineSystem(dt)
        self:updateTransmissionSystem(dt)
        self:updateHydraulicsSystem(dt)
        self:updateCoolingSystem(dt)
        self:updateElectricalSystem(dt)
        self:updateChassisSystem(dt)
        self:updateFuelSystem(dt)
        self:updateWorkProcessSystem(dt)
        -- condtition
        self:updateConditionLevel()
        -- general wear
        self:processGeneralWearBreakdown()
        -- lubtication level
        self:updateLubricationLevel(dt)
        --- Overload warnings / rolling avg stress
        syncOverloadWarning(self, dt)
    end

    -- Raise dirty flags for changed data
    if self.isServer then
        markStateDirty(self, spec)
        markServiceContextDirty(self, spec)
        markTelemetryDirty(self, spec)
        markThermalDirty(self, spec)
        markElectricalDirty(self, spec)
        markFieldcareDirty(self, spec)
        markWearDirty(self, spec)
        markBreakdownsDirty(self, spec)
        markServiceProgressDirty(self, spec)
    end
end

-- ==========================================================
--                      VEHICLE STATE
-- ==========================================================

local function updateActiveDraftStats(vehicle)  -- calculates the current active draft demand from attached implements
    local spec = vehicle.spec_AdvancedDamageSystem
    if spec == nil then
        return 0, 0
    end

    local result = {
        maxForce = 0,
        effectiveForceCap = 0,
        count = 0
    }
    local visited = {}

    local function collectDraftStats(rootVehicle)
        if rootVehicle == nil or visited[rootVehicle] then
            return
        end

        visited[rootVehicle] = true

        local attachedImplements = rootVehicle.getAttachedImplements ~= nil and rootVehicle:getAttachedImplements() or nil
        if attachedImplements == nil then
            return
        end

        for _, implement in pairs(attachedImplements) do
            local object = implement ~= nil and implement.object or nil
            if object ~= nil and not visited[object] then
                local powerConsumer = object.spec_powerConsumer
                if powerConsumer ~= nil then
                    local maxForce = tonumber(powerConsumer.maxForce) or 0
                    local multiplier = object.getPowerMultiplier ~= nil and (tonumber(object:getPowerMultiplier()) or 0) or 1
                    local speed = math.abs(tonumber(object.lastSpeedReal) or 0)
                    local movingDirection = tonumber(object.movingDirection) or 0
                    local forceDir = tonumber(powerConsumer.forceDir) or 0

                    local isActiveDraft = maxForce > 0
                        and multiplier > 0.001
                        and powerConsumer.forceNode ~= nil
                        and movingDirection == forceDir
                        and speed > 0.0001

                    if isActiveDraft then
                        result.maxForce = result.maxForce + maxForce
                        result.effectiveForceCap = result.effectiveForceCap + maxForce * multiplier
                        result.count = result.count + 1
                    end
                end

                collectDraftStats(object)
            end
        end
    end

    collectDraftStats(vehicle)

    spec.activeDraftMaxForce = result.maxForce 
    spec.activeDraftEffectiveForceCap = result.effectiveForceCap
end

local function updateAvgDynamicMotorLoadWindow(spec, dynamicMotorLoad, dt)
    if spec == nil then
        return 0
    end

    if not ADS_Config.DEBUG then
        spec._avgDynamicMotorLoadSamples = nil
        spec.avgDynamicMotorLoad = 0
        return 0
    end

    local durationMs = math.max(tonumber(dt) or 0, 1)
    local value = math.max(tonumber(dynamicMotorLoad) or 0, 0)
    local periodMs = 10000

    if type(spec._avgDynamicMotorLoadSamples) ~= "table" then
        spec._avgDynamicMotorLoadSamples = {}
    end

    local samples = spec._avgDynamicMotorLoadSamples
    table.insert(samples, {
        durationMs = durationMs,
        value = value
    })

    local totalDurationMs = 0
    local weightedSum = 0
    for _, sample in ipairs(samples) do
        local sampleDurationMs = math.max(tonumber(sample.durationMs) or 0, 0)
        local sampleValue = math.max(tonumber(sample.value) or 0, 0)
        totalDurationMs = totalDurationMs + sampleDurationMs
        weightedSum = weightedSum + sampleValue * sampleDurationMs
    end

    while #samples > 0 and totalDurationMs > periodMs do
        local oldest = samples[1]
        local oldestDurationMs = math.max(tonumber(oldest.durationMs) or 0, 0)
        local overflowMs = totalDurationMs - periodMs

        if oldestDurationMs <= overflowMs then
            totalDurationMs = totalDurationMs - oldestDurationMs
            weightedSum = weightedSum - (math.max(tonumber(oldest.value) or 0, 0) * oldestDurationMs)
            table.remove(samples, 1)
        else
            oldest.durationMs = oldestDurationMs - overflowMs
            totalDurationMs = totalDurationMs - overflowMs
            weightedSum = weightedSum - (math.max(tonumber(oldest.value) or 0, 0) * overflowMs)
        end
    end

    local avgValue = totalDurationMs > 0 and math.max(weightedSum / totalDurationMs, 0) or 0
    spec.avgDynamicMotorLoad = avgValue

    return avgValue
end

local function updateAvgSpeedWindow(spec, speed, dt)
    if spec == nil then
        return 0
    end

    if not ADS_Config.DEBUG then
        spec._avgSpeedSamples = nil
        spec.avgSpeed = 0
        return 0
    end

    local durationMs = math.max(tonumber(dt) or 0, 1)
    local value = math.max(tonumber(speed) or 0, 0)
    local periodMs = 10000

    if type(spec._avgSpeedSamples) ~= "table" then
        spec._avgSpeedSamples = {}
    end

    local samples = spec._avgSpeedSamples
    table.insert(samples, {
        durationMs = durationMs,
        value = value
    })

    local totalDurationMs = 0
    local weightedSum = 0
    for _, sample in ipairs(samples) do
        local sampleDurationMs = math.max(tonumber(sample.durationMs) or 0, 0)
        local sampleValue = math.max(tonumber(sample.value) or 0, 0)
        totalDurationMs = totalDurationMs + sampleDurationMs
        weightedSum = weightedSum + sampleValue * sampleDurationMs
    end

    while #samples > 0 and totalDurationMs > periodMs do
        local oldest = samples[1]
        local oldestDurationMs = math.max(tonumber(oldest.durationMs) or 0, 0)
        local overflowMs = totalDurationMs - periodMs

        if oldestDurationMs <= overflowMs then
            totalDurationMs = totalDurationMs - oldestDurationMs
            weightedSum = weightedSum - (math.max(tonumber(oldest.value) or 0, 0) * oldestDurationMs)
            table.remove(samples, 1)
        else
            oldest.durationMs = oldestDurationMs - overflowMs
            totalDurationMs = totalDurationMs - overflowMs
            weightedSum = weightedSum - (math.max(tonumber(oldest.value) or 0, 0) * overflowMs)
        end
    end

    local avgValue = totalDurationMs > 0 and math.max(weightedSum / totalDurationMs, 0) or 0
    spec.avgSpeed = avgValue

    return avgValue
end

local function updateDynamicMotorLoad(vehicle, dt) -- adjusts motor load with driveline vibration under active field work
    local spec = vehicle.spec_AdvancedDamageSystem
    if spec == nil then
        return 0
    end

    local motorLoad = AdvancedDamageSystem.sanitizeNumber(vehicle:getMotorLoadPercentage(), 0, 0, 1.5)
    local hasMoreRealistic = g_modIsLoaded ~= nil and g_modIsLoaded["MoreRealistic"] == true

    if hasMoreRealistic then
        spec.dynamicMotorLoad = motorLoad
        updateAvgDynamicMotorLoadWindow(spec, motorLoad, dt)
        updateAvgSpeedWindow(spec, vehicle:getLastSpeed(), dt)
        return
    end

    local dynamicMotorLoad = motorLoad

    if vehicle:getIsOnField() then
        local isWorking = false
        if vehicle.spec_attacherJoints and vehicle.spec_attacherJoints.attachedImplements and next(vehicle.spec_attacherJoints.attachedImplements) ~= nil then
            for _, implementData in pairs(vehicle.spec_attacherJoints.attachedImplements) do
                if implementData.object ~= nil then
                    local implement = implementData.object
                    if implement:getIsLowered() then
                        isWorking = true
                    end
                end
            end
        end

        if isWorking then
            local motor = vehicle:getMotor()
            local peakPowerHp = AdvancedDamageSystem.sanitizeNumber((motor.peakMotorPower or 0) * 1.36, 0, 0)
            local avgAbsDiffAcc = AdvancedDamageSystem.sanitizeNumber(spec.avgAbsDiffAcc, 0, 0, 100)
            if peakPowerHp > 0.001 then
                local activeDraftEffectiveForceCap = AdvancedDamageSystem.sanitizeNumber(spec.activeDraftEffectiveForceCap, 0, 0, 1000000)
                dynamicMotorLoad = math.min(motorLoad + math.min(avgAbsDiffAcc / 3, 0.15) * ((activeDraftEffectiveForceCap / peakPowerHp) / 0.15) ^ 2, 1.15)
            end
        end
    end

    spec.dynamicMotorLoad = AdvancedDamageSystem.sanitizeNumber(dynamicMotorLoad, motorLoad, 0, 1.5)

    updateAvgDynamicMotorLoadWindow(spec, spec.dynamicMotorLoad or motorLoad, dt)
    updateAvgSpeedWindow(spec, vehicle:getLastSpeed(), dt)
end

local function updateAvgAbsDiffAccWindow(spec, motor, dt) -- Tracks the rolling average absolute differential acceleration over the last 500 ms
    if spec == nil or motor == nil then
        if spec ~= nil then
            spec.avgAbsDiffAcc = 0
        end
        return 0
    end

    local windowDurationMs = 500
    local diffAcc = math.abs(tonumber(motor.differentialRotAccelerationSmoothed) or 0)

    if spec._avgAbsDiffAccSamples == nil then
        spec._avgAbsDiffAccSamples = {}
    end

    local samples = spec._avgAbsDiffAccSamples

    for i = #samples, 1, -1 do
        local sample = samples[i]
        sample.ageMs = (tonumber(sample.ageMs) or 0) + (tonumber(dt) or 0)

        if sample.ageMs > windowDurationMs then
            table.remove(samples, i)
        end
    end

    table.insert(samples, {
        ageMs = 0,
        value = diffAcc
    })

    if #samples == 0 then
        spec.avgAbsDiffAcc = 0
        return 0
    end

    local sum = 0
    for i = 1, #samples do
        sum = sum + (tonumber(samples[i].value) or 0)
    end

    local avg = sum / #samples
    spec.avgAbsDiffAcc = avg
end

local function updateStarterState(vehicle)
    local spec = vehicle.spec_AdvancedDamageSystem
    if spec == nil then
        return false
    end

    local engineHardStartEffect = spec.activeEffects ~= nil and spec.activeEffects.ENGINE_HARD_START_MODIFIER or nil
    local engineFailedEffect = spec.activeEffects ~= nil and spec.activeEffects.ENGINE_FAILURE or nil

    local isCranking = vehicle:getMotorState() == 3 or 
        (engineHardStartEffect ~= nil and engineHardStartEffect.extraData ~= nil and engineHardStartEffect.extraData.status ~= nil and (engineHardStartEffect.extraData.status == "CRANKING" or engineHardStartEffect.extraData.status == "PASSED")) or 
        (engineFailedEffect ~= nil and engineFailedEffect.extraData ~= nil and engineFailedEffect.extraData.status ~= nil and engineFailedEffect.extraData.status == "CRANKING")

    spec.isCranking = isCranking
end

--- transmission
local function updateWheelSlip(vehicle)
    local spec_wheels = vehicle.spec_wheels
    local spec = vehicle.spec_AdvancedDamageSystem
    if spec == nil or spec_wheels == nil then
        return 0
    end

    local wheelSlipIntensity = 0

    if spec_wheels ~= nil and spec_wheels.wheels ~= nil then
        local drivenWheels = {}
        local drivenWheelCount = 0
        local differentials = vehicle.spec_motorized ~= nil and vehicle.spec_motorized.differentials or nil

        if differentials ~= nil and next(differentials) ~= nil then
            local visitedDifferentials = {}
            local function collectDifferential(diffIndex)
                local runtimeIndex = (tonumber(diffIndex) or -1) + 1
                if runtimeIndex < 1 or visitedDifferentials[runtimeIndex] then
                    return
                end

                local differential = differentials[runtimeIndex]
                if differential == nil then
                    return
                end

                visitedDifferentials[runtimeIndex] = true

                if differential.diffIndex1IsWheel then
                    local wheelIndex = tonumber(differential.diffIndex1)
                    if wheelIndex ~= nil and drivenWheels[wheelIndex] ~= true then
                        drivenWheels[wheelIndex] = true
                        drivenWheelCount = drivenWheelCount + 1
                    end
                else
                    collectDifferential(differential.diffIndex1)
                end

                if differential.diffIndex2IsWheel then
                    local wheelIndex = tonumber(differential.diffIndex2)
                    if wheelIndex ~= nil and drivenWheels[wheelIndex] ~= true then
                        drivenWheels[wheelIndex] = true
                        drivenWheelCount = drivenWheelCount + 1
                    end
                else
                    collectDifferential(differential.diffIndex2)
                end
            end

            for differentialIndex, _ in ipairs(differentials) do
                collectDifferential(differentialIndex - 1)
            end
        end

        if drivenWheelCount == 0 then
            for wheelIndex, wheel in ipairs(spec_wheels.wheels) do
                local physicsWheel = wheel.physics
                if physicsWheel ~= nil and (tonumber(physicsWheel.driveMode) or 0) ~= 0 then
                    drivenWheels[wheelIndex] = true
                    drivenWheelCount = drivenWheelCount + 1
                end
            end
        end

        local slipValues = {}

        for wheelIndex, wheel in ipairs(spec_wheels.wheels) do
            local physicsWheel = wheel.physics
            if drivenWheels[wheelIndex] == true and physicsWheel ~= nil and physicsWheel.netInfo ~= nil and physicsWheel.hasGroundContact then
                local vanillaSlip = math.max(tonumber(physicsWheel.netInfo.slip) or 0, 0)
                table.insert(slipValues, vanillaSlip)
            end
        end

        table.sort(slipValues, function(a, b)
            return a > b
        end)

        local topCount = math.min(#slipValues, 2)
        if topCount > 0 then
            local topSlipSum = 0
            for i = 1, topCount do
                topSlipSum = topSlipSum + slipValues[i]
            end
            wheelSlipIntensity = topSlipSum / topCount
        end
    end

    if wheelSlipIntensity < 0.01 then
        wheelSlipIntensity = 0
    end

    spec.wheelSlipIntensity = wheelSlipIntensity
end

local function updateAverageTireGroundFrictionCoeff(vehicle)
    local spec_wheels = vehicle.spec_wheels
    local spec = vehicle.spec_AdvancedDamageSystem
    if spec == nil or spec_wheels == nil then
        return 0
    end 

    local sum = 0
    local count = 0
    for _, wheel in ipairs(spec_wheels.wheels) do
        local physics = wheel ~= nil and wheel.physics or nil
        local coeff = physics ~= nil and tonumber(physics.tireGroundFrictionCoeff) or nil
        if coeff ~= nil and coeff > 0 then
            sum = sum + coeff
            count = count + 1
        end
    end

    if count == 0 then
        return 0
    end

    spec.avgTireGroundFrictionCoeff = sum / count
end

--- hydraulic
local function getSupportWheelCount(vehicle)
    local supportWheelCount = 0
    if vehicle ~= nil and vehicle.spec_wheels ~= nil and vehicle.spec_wheels.wheels ~= nil then
        for _, wheel in ipairs(vehicle.spec_wheels.wheels) do
            if wheel ~= nil then
                local hasGroundContact = false
                if wheel.physics ~= nil then
                    hasGroundContact = wheel.physics.hasGroundContact == true
                elseif wheel.hasGroundContact ~= nil then
                    hasGroundContact = wheel.hasGroundContact == true
                end
                if hasGroundContact then
                    supportWheelCount = supportWheelCount + 1
                end
            end
        end
    end
    return supportWheelCount
end

local function getMoveState(vehicle, moveKey, jointDesc, nextMoveAlphaCache)
    local spec = vehicle.spec_AdvancedDamageSystem
    if spec == nil then
        return false
    end
    local moveAlpha = jointDesc ~= nil and (jointDesc.moveAlpha or 0) or 0
    local prevMoveAlphaCache = spec.hydraulicsMoveAlphaCache or {}
    
    local prevMoveAlpha = prevMoveAlphaCache[moveKey]
    nextMoveAlphaCache[moveKey] = moveAlpha

    if prevMoveAlpha ~= nil then
        return math.abs(moveAlpha - prevMoveAlpha) > 0.05
    end

    local isMovingRaw = jointDesc ~= nil and jointDesc.isMoving == true
    return isMovingRaw and moveAlpha > 0.001 and moveAlpha < 0.999
end

local function getToolMotionFlags(vehicle)
    local isFoldMoving = false
    local isPlowRotationMoving = false
    local isCylinderedMoving = false

    if vehicle ~= nil and vehicle.spec_foldable ~= nil then
        isFoldMoving = math.abs(vehicle.spec_foldable.foldMoveDirection or 0) > 0.0001
    end

    if vehicle ~= nil and vehicle.spec_plow ~= nil and vehicle.spec_plow.rotationPart ~= nil and vehicle.spec_plow.rotationPart.turnAnimation ~= nil and vehicle.getIsAnimationPlaying ~= nil then
        isPlowRotationMoving = vehicle:getIsAnimationPlaying(vehicle.spec_plow.rotationPart.turnAnimation)
    end    

    if vehicle ~= nil and vehicle.spec_cylindered ~= nil then
        isCylinderedMoving = vehicle.spec_cylindered.movingToolNeedsSound == true
    end

    return isFoldMoving, isPlowRotationMoving, isCylinderedMoving
end

local function getDefaultNode(vehicle)
    if vehicle == nil then
        return nil
    end
    if vehicle.steeringAxleNode ~= nil then
        return vehicle.steeringAxleNode
    end
    if vehicle.components ~= nil and vehicle.components[1] ~= nil then
        return vehicle.components[1].node
    end
    return nil
end

local function updateImplementChainState(vehicle)
    local spec = vehicle.spec_AdvancedDamageSystem
    if spec == nil then
        return 0
    end

    spec.liftedMass = 0
    spec.operatingMass = 0
    spec.isImplementLifted = false
    spec.isImplementOperating = false
    spec.isImplementLowered = false

    local nextMoveAlphaCache = {}
    local implements = {}
    local visited = {}
    local maxConnectedPtoAngleDeg = 0
    local hasConnectedPto = false
    local isPtoActive = false
    local maxCutterArea = 0

    local function updatePtoActivityState(vehicleObj)
        local ptoActive = vehicleObj.getIsPowerTakeOffActive ~= nil and vehicleObj:getIsPowerTakeOffActive() or false
        local ptoConsuming = vehicleObj.getDoConsumePtoPower ~= nil and vehicleObj:getDoConsumePtoPower() or false
        local ptoRpm = vehicleObj.getPtoRpm ~= nil and (tonumber(vehicleObj:getPtoRpm()) or 0) or 0

        local ptoTorque = 0
        if PowerConsumer ~= nil and PowerConsumer.getTotalConsumedPtoTorque ~= nil then
            local ok, torqueValue = pcall(PowerConsumer.getTotalConsumedPtoTorque, vehicleObj, nil, nil, true)
            if ok then
                ptoTorque = tonumber(torqueValue) or 0
            end
        end

        if ptoActive or ptoConsuming or ptoRpm > 10 or ptoTorque > 0.001 then
            isPtoActive = true
        end
    end

    local function updateConnectedPtoState(parentObj, childObj, jointDescIndex)
        if parentObj ~= nil and parentObj.getOutputPowerTakeOffsByJointDescIndex ~= nil and jointDescIndex ~= nil then
            local outputs = parentObj:getOutputPowerTakeOffsByJointDescIndex(jointDescIndex) or {}
            for _, output in ipairs(outputs) do
                if output ~= nil and output.connectedInput ~= nil then
                    hasConnectedPto = true

                    local inputPto = output.connectedInput
                    local outputNode = output.outputNode
                    local inputNode = inputPto ~= nil and inputPto.inputNode or nil

                    if outputNode ~= nil and inputNode ~= nil then
                        local outDirX, outDirY, outDirZ = localDirectionToWorld(outputNode, 0, 0, 1)
                        local inDirX, inDirY, inDirZ = localDirectionToWorld(inputNode, 0, 0, 1)
                        local angleDeg = nil

                        outDirX, outDirY, outDirZ = MathUtil.vector3Normalize(outDirX, outDirY, outDirZ)
                        inDirX, inDirY, inDirZ = MathUtil.vector3Normalize(inDirX, inDirY, inDirZ)

                        local outLen = MathUtil.vector3Length(outDirX, outDirY, outDirZ)
                        local inLen = MathUtil.vector3Length(inDirX, inDirY, inDirZ)
                        if outLen > 0.0001 and inLen > 0.0001 then
                            local cosine = MathUtil.dotProduct(outDirX, outDirY, outDirZ, inDirX, inDirY, inDirZ)
                            angleDeg = math.deg(math.acos(math.abs(math.clamp(cosine, -1.0, 1.0))))
                        end

                        if angleDeg == nil then
                            local x1, y1, z1 = getWorldTranslation(outputNode)
                            local x2, y2, z2 = getWorldTranslation(inputNode)
                            local dx, dy, dz = x1 - x2, y1 - y2, z1 - z2
                            local length = MathUtil.vector3Length(dx, dy, dz)
                            if length > 0.0001 then
                                local length2D = MathUtil.vector2Length(dx, dz)
                                local cosine = math.clamp(length2D / length, -1.0, 1.0)
                                angleDeg = math.deg(math.acos(cosine))
                            end
                        end

                        if angleDeg ~= nil then
                            maxConnectedPtoAngleDeg = math.max(maxConnectedPtoAngleDeg, angleDeg)
                        end
                    end
                end
            end
        end
    end

    local function collectImplementState(vehicleObj, parentObj, jointDesc, jointDescIndex, isHead)
        if vehicleObj == nil or visited[vehicleObj] then
            return
        end

        visited[vehicleObj] = true
        updatePtoActivityState(vehicleObj)

        local isMoving = false
        if isHead then
            if vehicleObj.spec_attacherJoints ~= nil and vehicleObj.spec_attacherJoints.attacherJoints ~= nil then
                for index, headJointDesc in pairs(vehicleObj.spec_attacherJoints.attacherJoints) do
                    isMoving = isMoving or getMoveState(vehicleObj, "__head:" .. tostring(index), headJointDesc, nextMoveAlphaCache)
                end
            end
        else
            local moveKey = string.format("%s:%s", tostring(vehicleObj), tostring(jointDescIndex or -1))
            isMoving = getMoveState(vehicle, moveKey, jointDesc, nextMoveAlphaCache)
            updateConnectedPtoState(parentObj, vehicleObj, jointDescIndex)
        end

        local isFoldMoving, isPlowRotationMoving, isCylinderedMoving = getToolMotionFlags(vehicleObj)
        local isLowered = false

        if vehicleObj.getIsLowered ~= nil then
            isLowered = vehicleObj:getIsLowered(false)
        elseif jointDesc ~= nil then
            isLowered = jointDesc.moveDown == true
        end

        if vehicleObj.spec_cutter ~= nil and vehicleObj.spec_cutter.workAreaParameters ~= nil then
            maxCutterArea = math.max(maxCutterArea, tonumber(vehicleObj.spec_cutter.workAreaParameters.lastArea) or 0)
        end

        table.insert(implements, {
            name = vehicleObj.getFullName ~= nil and vehicleObj:getFullName() or tostring(vehicleObj.configFileName or vehicleObj.customEnvironment or "implement"),
            mass = vehicleObj.getTotalMass ~= nil and (vehicleObj:getTotalMass(true) or 0) or 0,
            jointTypeId = isHead and 0 or (jointDesc ~= nil and jointDesc.jointType or nil),
            isLowered = isLowered,
            supportWheelCount = getSupportWheelCount(vehicleObj),
            isMoving = isMoving,
            isFoldMoving = isFoldMoving,
            isPlowRotationMoving = isPlowRotationMoving,
            isCylinderedMoving = isCylinderedMoving,
            isHead = isHead == true
        })

        local attachedImplements = vehicleObj.getAttachedImplements ~= nil and vehicleObj:getAttachedImplements() or nil
        if attachedImplements ~= nil then
            for _, implementData in pairs(attachedImplements) do
                local childObj = implementData ~= nil and implementData.object or nil
                if childObj ~= nil then
                    local childJointDesc = nil
                    if vehicleObj.spec_attacherJoints ~= nil and vehicleObj.spec_attacherJoints.attacherJoints ~= nil then
                        childJointDesc = vehicleObj.spec_attacherJoints.attacherJoints[implementData.jointDescIndex]
                    end
                    collectImplementState(childObj, vehicleObj, childJointDesc, implementData.jointDescIndex, false)
                end
            end
        end
    end

    collectImplementState(vehicle, nil, nil, nil, true)
    
    for _, impl in ipairs(implements) do
        if impl.isLowered then
            spec.isImplementLowered = true
        end
        if impl.jointTypeId ~= 0 and impl.jointTypeId ~= 3 and not impl.isLowered and (impl.supportWheelCount or 0) == 0 then
            spec.liftedMass = spec.liftedMass + (impl.mass or 0)
            spec.isImplementLifted = true
        end
        if (impl.isMoving and impl.jointTypeId ~= 0) or impl.isFoldMoving or impl.isPlowRotationMoving or (impl.isCylinderedMoving and not impl.isHead) then
            spec.isImplementOperating  = true
            local impMass = impl.supportWheelCount == 0 and impl.mass or impl.mass / 2
            if not impl.isHead then spec.operatingMass = spec.operatingMass + (impMass or 0) end
        end
    end

    local isOnField = vehicle.getIsOnField ~= nil and vehicle:getIsOnField() or false
    local lastSpeed = vehicle.getLastSpeed ~= nil and vehicle:getLastSpeed() or 0
    local isTurnedOn = vehicle.getIsTurnedOn == nil or vehicle:getIsTurnedOn()

    spec.hydraulicsMoveAlphaCache = nextMoveAlphaCache
    spec.maxConnectedPtoAngleDeg = maxConnectedPtoAngleDeg
    spec.hasConnectedPto = hasConnectedPto
    spec.isPtoActive = isPtoActive
    spec.implements = implements
    spec.isHarvesting = maxCutterArea > 0 and isOnField and lastSpeed >= 0.5 and isTurnedOn
end

--- chassis

local function updateChassisVibState(vehicle, dt)
    local spec = vehicle.spec_AdvancedDamageSystem
    if spec == nil then
        return
    end

    local vibState = spec.chassisVibState
    if vibState == nil then
        vibState = {
            prevSuspension = {},
            smoothed = 0,
            raw = 0,
            signal = 0,
            wheelCount = 0,
            speedFactor = 0,
            avgDensityType = 0,
            fieldMultiplier = 1
        }
        spec.chassisVibState = vibState
    end

    local prevSuspension = vibState.prevSuspension or {}
    vibState.prevSuspension = prevSuspension

    local speed = tonumber(vehicle.getLastSpeed ~= nil and vehicle:getLastSpeed() or 0) or 0
    local vibRaw = 0
    local vibWheelCount = 0
    local vibAvgDensityType = 0
    local vibSpeedFactor = 0
    local vibFieldMultiplier = 1

    if speed > 0.003 and vehicle.spec_wheels ~= nil and vehicle.spec_wheels.wheels ~= nil then
        local sumSuspNorm = 0
        local countSuspNorm = 0
        local sumDensityType = 0
        local countDensityType = 0

        for wheelIndex, wheel in ipairs(vehicle.spec_wheels.wheels) do
            local runtimeWheel = wheel.physics or wheel
            local netInfo = runtimeWheel.netInfo or wheel.netInfo
            local suspTravel = tonumber(runtimeWheel.suspTravel or wheel.suspTravel) or 0
            local suspLength = tonumber((netInfo and netInfo.suspensionLength) or runtimeWheel.suspensionLength or wheel.suspensionLength) or 0
            local prevSuspLength = tonumber(prevSuspension[wheelIndex]) or suspLength
            local suspDelta = math.abs(suspLength - prevSuspLength)
            prevSuspension[wheelIndex] = suspLength

            local suspNorm = 0
            if suspTravel > 0.0001 then
                suspNorm = math.min(suspDelta / suspTravel, 3.0)
            end

            local hasGroundContact = false
            if wheel.physics ~= nil and wheel.physics.hasGroundContact ~= nil then
                hasGroundContact = wheel.physics.hasGroundContact == true
            elseif runtimeWheel.hasGroundContact ~= nil then
                hasGroundContact = runtimeWheel.hasGroundContact == true
            elseif wheel.hasGroundContact ~= nil then
                hasGroundContact = wheel.hasGroundContact == true
            end

            local densityType = tonumber(runtimeWheel.densityType or wheel.densityType) or -1

            if hasGroundContact then
                sumSuspNorm = sumSuspNorm + suspNorm
                countSuspNorm = countSuspNorm + 1
                if densityType >= 0 then
                    sumDensityType = sumDensityType + densityType
                    countDensityType = countDensityType + 1
                end
            end
        end

        vibRaw = countSuspNorm > 0 and (sumSuspNorm / countSuspNorm) or 0
        vibWheelCount = countSuspNorm
        vibAvgDensityType = countDensityType > 0 and (sumDensityType / countDensityType) or 0
        vibSpeedFactor = math.clamp(speed, 0.0, 50.0) / 50.0
        if vehicle.getIsOnField ~= nil and vehicle:getIsOnField() then
            vibFieldMultiplier = tonumber(ADS_Config.CORE.CHASSIS_FACTOR_DATA.VIB_FIELD_MULTIPLIER) or 1.3
        end
    end

    local vibSignal = vibRaw * vibSpeedFactor
    local alpha = dt / (300 + dt)

    vibState.raw = vibRaw
    vibState.signal = vibSignal
    vibState.wheelCount = vibWheelCount
    vibState.speedFactor = vibSpeedFactor
    vibState.avgDensityType = vibAvgDensityType
    vibState.fieldMultiplier = vibFieldMultiplier
    vibState.smoothed = vibState.smoothed + (vibSignal - vibState.smoothed) * alpha
end

local function updateChassisSteeringState(vehicle, dt)
    local spec = vehicle.spec_AdvancedDamageSystem
    if spec == nil then
        return
    end

    local steerState = spec.chassisSteerState
    if steerState == nil then
        steerState = {
            prevPosition = nil,
            position = 0,
            deltaRate = 0,
            rateFactor = 0,
            groundContact = 0,
            isLowSpeedActive = false,
            isMoving = false
        }
        spec.chassisSteerState = steerState
    end

    local speed = tonumber(vehicle.getLastSpeed ~= nil and vehicle:getLastSpeed() or 0) or 0
    local C = ADS_Config.CORE.CHASSIS_FACTOR_DATA
    local steerSpeedThreshold = tonumber(C.STEER_LOAD_SPEED_THRESHOLD) or 4.0
    local steeringPosition = 0

    if vehicle.spec_wheels ~= nil and vehicle.spec_wheels.rotatedTime ~= nil then
        steeringPosition = tonumber(vehicle.spec_wheels.rotatedTime) or 0
    elseif vehicle.getSteeringDirection ~= nil then
        steeringPosition = tonumber(vehicle:getSteeringDirection()) or 0
    end

    local prevSteeringPosition = tonumber(steerState.prevPosition)
    local steerDeltaRate = 0
    local steerRateFactor = 0
    if prevSteeringPosition ~= nil then
        local dtSeconds = math.max((tonumber(dt) or 0) / 1000, 0.001)
        local steerDelta = math.abs(steeringPosition - prevSteeringPosition)
        steerDeltaRate = steerDelta / dtSeconds

        local rateDeadzone = math.max(tonumber(C.STEER_LOAD_RATE_DEADZONE) or 0.02, 0)
        local fullRate = math.max(tonumber(C.STEER_LOAD_RATE_FULL) or 0.60, rateDeadzone + 0.0001)
        local normalizedRate = math.clamp((steerDeltaRate - rateDeadzone) / math.max(fullRate - rateDeadzone, 0.0001), 0, 1)
        steerRateFactor = normalizedRate * normalizedRate
    end
    steerState.prevPosition = steeringPosition
    steerState.position = steeringPosition
    steerState.deltaRate = steerDeltaRate
    steerState.rateFactor = steerRateFactor

    local steerGroundContact = 0
    if vehicle.spec_wheels ~= nil and vehicle.spec_wheels.wheels ~= nil then
        for _, wheel in ipairs(vehicle.spec_wheels.wheels) do
            local hasGroundContact = false
            if wheel.physics ~= nil and wheel.physics.hasGroundContact ~= nil then
                hasGroundContact = wheel.physics.hasGroundContact == true
            elseif wheel.hasGroundContact ~= nil then
                hasGroundContact = wheel.hasGroundContact == true
            end

            if hasGroundContact then
                steerGroundContact = 1
                break
            end
        end
    end

    steerState.groundContact = steerGroundContact
    steerState.isLowSpeedActive = steerSpeedThreshold > 0 and speed <= steerSpeedThreshold
    steerState.isMoving = steerRateFactor > 0
end

local function updateChassisBrakingState(vehicle)
    local spec = vehicle.spec_AdvancedDamageSystem
    if spec == nil then
        return
    end

    local brakeState = spec.chassisBrakeState
    if brakeState == nil then
        brakeState = {
            pedal = 0,
            massRatio = 0,
            isBraking = false,
            isBrakingByAxis = false
        }
        spec.chassisBrakeState = brakeState
    end

    brakeState.pedal = 0
    brakeState.massRatio = 0
    brakeState.hpMassRatio = 1000
    brakeState.isBraking = false
    brakeState.isBrakingByAxis = false

    local totalMass = tonumber(vehicle.getTotalMass ~= nil and vehicle:getTotalMass() or 0) or 0
    local selfMass = tonumber(vehicle.getTotalMass ~= nil and vehicle:getTotalMass(true) or 0) or 0
    local trailerMass = math.max(totalMass - selfMass, 0.01)
    brakeState.hpMassRatio = math.max((vehicle:getMotor().peakMotorPower or 0) * 1.36, 0.001) / trailerMass

    local drivable = vehicle.spec_drivable
    if drivable == nil or vehicle.spec_wheels == nil then
        return
    end

    -- This is the effective brake pedal after the game has already processed
    -- updateVehiclePhysics / wheel physics, so brake breakdown modifiers are reflected here.
    local brakePedalRaw = tonumber(vehicle.spec_wheels.brakePedal) or 0
    local axisForward = tonumber(drivable.axisForward or drivable.axisForwardSend or (drivable.lastInputValues and drivable.lastInputValues.axisForward) or 0) or 0
    local movingDirection = tonumber(vehicle.movingDirection) or 0
    local directionMode = vehicle.getDirectionChangeMode ~= nil and vehicle:getDirectionChangeMode() or 1
    local isBrakingByAxis = false

    if directionMode == 2 then
        isBrakingByAxis = axisForward < -0.01
    else
        isBrakingByAxis = movingDirection ~= 0 and axisForward ~= 0 and math.sign(movingDirection) ~= math.sign(axisForward)
    end

    local brakePedalThreshold = tonumber(ADS_Config.CORE.CHASSIS_FACTOR_DATA.BRAKE_PEDAL_THRESHOLD) or 0.15
    local brakePedal = math.clamp(brakePedalRaw, 0, 1)
    local isBraking = isBrakingByAxis or brakePedal > brakePedalThreshold

    local ownMass = tonumber(vehicle.getTotalMass ~= nil and vehicle:getTotalMass(true) or 0) or 0
    local totalMass = tonumber(vehicle.getTotalMass ~= nil and vehicle:getTotalMass() or 0) or 0
    local brakeMassRatio = ownMass > 0 and math.max(totalMass / ownMass, 0) or 0

    brakeState.pedal = brakePedal
    brakeState.massRatio = brakeMassRatio
    brakeState.isBraking = isBraking
    brakeState.isBrakingByAxis = isBrakingByAxis
end

local function updateFuelState(vehicle, dt)
    local spec = vehicle.spec_AdvancedDamageSystem
    if spec == nil then
        return
    end

    local fuelState = spec.fuelState
    if fuelState == nil then
        fuelState = {
            level = 0,
            currentUsageRatio = 0,
            temperature = 0,
            idleTimer = 0
        }
        spec.fuelState = fuelState
    end

    local function resolveFuelLevel()
        local fuelFillUnit = nil
        if vehicle.getConsumerFillUnitIndex ~= nil and FillType ~= nil and FillType.DIESEL ~= nil then
            fuelFillUnit = vehicle:getConsumerFillUnitIndex(FillType.DIESEL)
        end

        if type(fuelFillUnit) == "table" then
            fuelFillUnit = tonumber(fuelFillUnit.fillUnitIndex or fuelFillUnit.index or fuelFillUnit[1])
        end

        local dieselType = FillType ~= nil and FillType.DIESEL or nil
        local methaneType = FillType ~= nil and FillType.METHANE or nil
        local electricType = FillType ~= nil and FillType.ELECTRICCHARGE or nil

        if fuelFillUnit == nil and vehicle.spec_motorized ~= nil and vehicle.spec_motorized.consumers ~= nil then
            for _, consumer in pairs(vehicle.spec_motorized.consumers) do
                if consumer ~= nil and consumer.fillUnitIndex ~= nil then
                    local fillType = consumer.fillType
                    if fillType == dieselType or fillType == methaneType or fillType == electricType then
                        fuelFillUnit = consumer.fillUnitIndex
                        break
                    end
                end
            end
        end

        if fuelFillUnit ~= nil then
            local fuelLiters = tonumber(vehicle:getFillUnitFillLevel(fuelFillUnit)) or 0
            local fuelCapacity = tonumber(vehicle:getFillUnitCapacity(fuelFillUnit)) or 0
            return fuelCapacity > 0 and (fuelLiters / fuelCapacity) or 0
        end

        return 0
    end

    local function resolveFuelUsageRatio()
        local motorizedSpec = vehicle.spec_motorized
        if motorizedSpec == nil then
            return 0
        end

        local fuelConsumer = nil

        if motorizedSpec.consumersByFillTypeName ~= nil then
            fuelConsumer = motorizedSpec.consumersByFillTypeName["DIESEL"]
                or motorizedSpec.consumersByFillTypeName["METHANE"]
                or motorizedSpec.consumersByFillTypeName["ELECTRICCHARGE"]
        end

        if fuelConsumer == nil and motorizedSpec.consumers ~= nil then
            for _, consumer in pairs(motorizedSpec.consumers) do
                if consumer ~= nil and consumer.fillType ~= nil then
                    if consumer.fillType == FillType.DIESEL
                    or consumer.fillType == FillType.METHANE
                    or consumer.fillType == FillType.ELECTRICCHARGE then
                        fuelConsumer = consumer
                        break
                    end
                end
            end
        end

        local baseFuelUsageLh = 0
        if fuelConsumer ~= nil and fuelConsumer.usage ~= nil then
            if fuelConsumer.permanentConsumption then
                baseFuelUsageLh = (fuelConsumer.usage or 0) * 60 * 60 * 1000
            else
                baseFuelUsageLh = fuelConsumer.usage or 0
            end
        end

        local currentFuelUsageLh = AdvancedDamageSystem.sanitizeNumber(motorizedSpec.lastFuelUsage, 0, 0, 10000)

        local missionInfo = g_currentMission ~= nil and g_currentMission.missionInfo or nil
        local usageFactor = 1.5
        if missionInfo ~= nil then
            if missionInfo.fuelUsage == 1 then
                usageFactor = 1.0
            elseif missionInfo.fuelUsage == 3 then
                usageFactor = 2.5
            end
        end

        local damageFactor = 1.0
        if vehicle.getVehicleDamage ~= nil and Motorized ~= nil and Motorized.DAMAGED_USAGE_INCREASE ~= nil then
            local vehicleDamage = vehicle:getVehicleDamage() or 0
            if vehicleDamage > 0 then
                damageFactor = damageFactor * (1 + vehicleDamage * Motorized.DAMAGED_USAGE_INCREASE)
            end
        end

        local maxFuelUsageLh = baseFuelUsageLh * usageFactor * damageFactor
        if maxFuelUsageLh > 0 then
            return currentFuelUsageLh / maxFuelUsageLh
        end

        return 0
    end

    fuelState.level = resolveFuelLevel()

    if vehicle.getIsMotorStarted ~= nil and vehicle:getIsMotorStarted() and not spec.isElectricVehicle then
        fuelState.currentUsageRatio = resolveFuelUsageRatio()

        local environmentTemp = 20
        if g_currentMission ~= nil and g_currentMission.environment ~= nil and g_currentMission.environment.weather ~= nil and g_currentMission.environment.weather.forecast ~= nil then
            local weather = g_currentMission.environment.weather.forecast:getCurrentWeather()
            if weather ~= nil and weather.temperature ~= nil then
                environmentTemp = weather.temperature
            end
        end

        fuelState.temperature = math.max(AdvancedDamageSystem.sanitizeNumber(spec.engineTemperature, environmentTemp, -80, 160) / 3.6, environmentTemp)

        local idleSpeedThreshold = tonumber(ADS_Config.CORE.FUEL_FACTOR_DATA.IDLE_DEPOSIT_SPEED_THRESHOLD) or 0.5
        local idleLoadThreshold = tonumber(ADS_Config.CORE.FUEL_FACTOR_DATA.IDLE_DEPOSIT_LOAD_THRESHOLD) or 0.3
        local motorLoad = vehicle.getMotorLoadPercentage ~= nil and (vehicle:getMotorLoadPercentage() or 0) or 0
        local idleTimer = math.max(tonumber(fuelState.idleTimer) or 0, 0)
        local isIdle = (vehicle:getLastSpeed() or 0) <= idleSpeedThreshold and motorLoad <= idleLoadThreshold

        if isIdle then
            idleTimer = math.min(idleTimer + (dt / 1000), ADS_Config.CORE.FUEL_FACTOR_DATA.IDLE_DEPOSIT_FACTOR_MAX_TIMER)
        else
            idleTimer = 0
        end

        fuelState.idleTimer = idleTimer
    else
        fuelState.currentUsageRatio = 0
        fuelState.temperature = 0
    end
end

--- update state
function AdvancedDamageSystem:updateVehicleStateSnapshot(dt)
    local spec = self.spec_AdvancedDamageSystem
    if not self.isServer or spec == nil or spec.isExcludedVehicle then return end

    local delayOne = ADS_Config.UPDATE_VEHICLE_STATE_DELAY_ONE
    local delayTwo = ADS_Config.UPDATE_VEHICLE_STATE_DELAY_TWO
    local delayThree = ADS_Config.UPDATE_VEHICLE_STATE_DELAY_THREE

    spec.updateVehicleStateTimerOne = spec.updateVehicleStateTimerOne + dt
    spec.updateVehicleStateTimerTwo = spec.updateVehicleStateTimerTwo + dt
    spec.updateVehicleStateTimerThree = spec.updateVehicleStateTimerThree + dt

    --- GROUP 1 ---
    if spec.updateVehicleStateTimerOne >= delayOne then
        spec.updateVehicleStateTimerOne = spec.updateVehicleStateTimerOne % delayOne
        --- avgAbsDiffAcc for dynamic motorLoad calculations
        updateAvgAbsDiffAccWindow(spec, self:getMotor(), delayOne)
        --- dynamic motorLoad
        updateDynamicMotorLoad(self, delayOne)
    end

    --- GROUP 2 ---
    if spec.updateVehicleStateTimerTwo >= delayTwo then
        spec.updateVehicleStateTimerTwo = spec.updateVehicleStateTimerTwo % delayTwo
        --- isCranking
        updateStarterState(self)
        --- whee slip
        updateWheelSlip(self)
        --- chassis vibration
        updateChassisVibState(self, delayTwo)
        --- low speed steering
        updateChassisSteeringState(self, delayTwo)
        --- braking under mass
        updateChassisBrakingState(self)
    end
    
    --- GROUP 3 ---
    if spec.updateVehicleStateTimerThree >= delayThree then
        spec.updateVehicleStateTimerThree = spec.updateVehicleStateTimerThree % delayThree
        --- max friction force
        updateActiveDraftStats(self)
        --- average tire friction coefficient
        updateAverageTireGroundFrictionCoeff(self)
        --- implement chain state
        updateImplementChainState(self)
        --- fuel state
        updateFuelState(self, delayThree)
        --- is vehicle under roof
        spec.isUnderRoof = self:isUnderRoof()
    end
end

-- ==========================================================
--                        AI WORKER
-- ==========================================================

local function getIsSoilSamplingActive(vehicle)
    local visited = {}

    local function visit(object)
        if object == nil or visited[object] then
            return false
        end
        visited[object] = true

        local soilSamplerSpec = object["spec_FS25_precisionFarming.soilSampler"]
        if soilSamplerSpec ~= nil and soilSamplerSpec.isSampling then
            return true
        end

        local attacherJoints = object.spec_attacherJoints
        local attachedImplements = attacherJoints ~= nil and attacherJoints.attachedImplements or nil
        if attachedImplements ~= nil then
            for _, implementData in pairs(attachedImplements) do
                if visit(implementData.object) then
                    return true
                end
            end
        end

        return false
    end

    return visit(vehicle)
end

function AdvancedDamageSystem:resetAiWorkerCruiseControlState(restoreCruiseSpeed)
    local spec = self.spec_AdvancedDamageSystem
    if spec == nil then return end

    local state = spec.aiWorkerPid
    if state == nil then return end

    if restoreCruiseSpeed ~= false and state.baseCruiseSpeed ~= nil and state.baseCruiseSpeed > 0 then
        local motor = self:getMotor()
        self:setCruiseControlMaxSpeed(motor:getMaximumForwardSpeed() * 3.6, nil)
    end

    state.integral = 0
    state.lastError = 0
    state.filteredStress = 0
    state.currentReduction = 0
    state.baseCruiseSpeed = nil
    state.applyTimer = 0
    state.lastAppliedSpeed = nil

    if ADS_Config.DEBUG and spec.debugData and spec.debugData.aiWorker then
        local dbg = spec.debugData.aiWorker
        dbg.stress = 0
        dbg.filteredStress = 0
        dbg.error = 0
        dbg.integral = 0
        dbg.derivative = 0
        dbg.reduction = 0
        dbg.targetSpeed = 0
        dbg.appliedSpeed = 0
        dbg.baseCruiseSpeed = 0
        dbg.loadStress = 0
        dbg.engineStress = 0
        dbg.transStress = 0
    end
end

function AdvancedDamageSystem:getAiWorkerImplementSpeedLimit()
    local speedLimit = math.huge

    if self.spec_attacherJoints and self.spec_attacherJoints.attachedImplements and next(self.spec_attacherJoints.attachedImplements) ~= nil then
        for _, implementData in pairs(self.spec_attacherJoints.attachedImplements) do
            if implementData.object ~= nil then
                local implement = implementData.object
                local currentSpeedLimit = implement.speedLimit
                if currentSpeedLimit ~= nil and implement.getIsLowered ~= nil and implement:getIsLowered() then
                    speedLimit = math.min(speedLimit, currentSpeedLimit)
                end
            end
        end
    end

    return speedLimit
end

function AdvancedDamageSystem:updateAiWorkerCruiseControl(dt)
    if not self.isServer then return end
    local spec = self.spec_AdvancedDamageSystem
    if spec == nil then return end

    local config = ADS_Config.CORE and ADS_Config.CORE.AI_WORKER_PID
    if config == nil then return end

    if spec.aiWorkerPid == nil then
        spec.aiWorkerPid = {
            integral = 0,
            lastError = 0,
            filteredStress = 0,
            currentReduction = 0,
            baseCruiseSpeed = nil,
            applyTimer = 0,
            lastAppliedSpeed = nil
        }
    end

    if not self:getIsAIActive() or not self:getIsMotorStarted() then
        self:resetAiWorkerCruiseControlState()
        return
    end

    -- Courseplay deliberately requests a full stop while a Precision Farming
    -- soil sample is being taken. Do not let the ADS load controller override
    -- that stop or retain load stress from the stationary sampling operation.
    if getIsSoilSamplingActive(self) then
        self:resetAiWorkerCruiseControlState(false)
        return
    end

    local cruiseSpeed = self:getCruiseControlSpeed() or 0
    if cruiseSpeed <= 0 then
        self:resetAiWorkerCruiseControlState()
        return
    end

    local state = spec.aiWorkerPid
    local dtMs = math.max(dt or ADS_Config.ON_UPDATE_DELAY, 1)
    local dtSeconds = math.max(dtMs / 1000, 0.05)

    local function normalizeToUnit(value, startValue, fullValue)
        local denominator = math.max(fullValue - startValue, 0.0001)
        return math.clamp((value - startValue) / denominator, 0.0, 1.0)
    end

    local motorLoad = math.max(spec.dynamicMotorLoad or self:getMotorLoadPercentage() or 0, 0)
    local rawEngineTemperature = AdvancedDamageSystem.sanitizeNumber(spec.rawEngineTemperature or spec.engineTemperature, 20, -80, 160)
    local rawTransmissionTemperature = AdvancedDamageSystem.sanitizeNumber(spec.rawTransmissionTemperature or spec.transmissionTemperature, -99, -99, 180)
    if rawTransmissionTemperature < 0 then
        rawTransmissionTemperature = rawEngineTemperature
    end

    local loadStress = normalizeToUnit(motorLoad, config.LOAD_START, config.LOAD_FULL)
    local engineStress = normalizeToUnit(rawEngineTemperature, config.ENGINE_TEMP_START, config.ENGINE_TEMP_FULL)
    local transStress = normalizeToUnit(rawTransmissionTemperature, config.TRANS_TEMP_START, config.TRANS_TEMP_FULL)

    local stress = loadStress * config.WEIGHT_LOAD + engineStress * config.WEIGHT_ENGINE_TEMP + transStress * config.WEIGHT_TRANS_TEMP
    stress = math.clamp(stress, 0.0, 1.0)

    local filterTau = math.max(config.FILTER_TAU or 0.7, 0.05)
    local filterAlpha = dtSeconds / (filterTau + dtSeconds)
    state.filteredStress = state.filteredStress + (stress - state.filteredStress) * filterAlpha

    local error = state.filteredStress - config.TARGET_STRESS
    if math.abs(error) < config.DEADBAND then
        error = 0
    end

    local lastError = state.lastError or 0
    local derivative = (error - lastError) / math.max(dtSeconds, 0.001)

    local maxReduction = math.max(config.MAX_REDUCTION or 16, 0)
    local maxIntegral = math.max(config.MAX_INTEGRAL or 3, 0.001)

    local integrate = true
    if (state.currentReduction <= 0 and error < 0) or (state.currentReduction >= maxReduction and error > 0) then
        integrate = false
    end
    if integrate then
        state.integral = math.clamp((state.integral or 0) + error * dtSeconds, -maxIntegral, maxIntegral)
    end

    local rateCommand = config.KP * error + config.KI * state.integral + config.KD * derivative
    local reductionRate = math.max(config.REDUCTION_RATE_DOWN or 8.0, 0.1)
    local recoveryRate = math.max(config.RECOVERY_RATE_UP or 2.5, 0.1)
    rateCommand = math.clamp(rateCommand, -recoveryRate, reductionRate)
    state.currentReduction = math.clamp(state.currentReduction + rateCommand * dtSeconds, 0, maxReduction)

    local emergency = rawEngineTemperature >= (config.EMERGENCY_ENGINE_TEMP or 112) or rawTransmissionTemperature >= (config.EMERGENCY_TRANS_TEMP or 112)
    if emergency then
        state.currentReduction = maxReduction
        state.integral = math.max(state.integral, 0)
    end

    local minSpeed = math.max(config.MIN_SPEED or 5.0, 0)
    local estimatedBaseCruiseSpeed = math.max(cruiseSpeed + state.currentReduction, minSpeed)
    if state.baseCruiseSpeed == nil then
        state.baseCruiseSpeed = estimatedBaseCruiseSpeed
    end

    if estimatedBaseCruiseSpeed > state.baseCruiseSpeed then
        state.baseCruiseSpeed = estimatedBaseCruiseSpeed
    elseif state.currentReduction < 0.25 then
        local syncDownRate = math.max(config.BASE_SYNC_DOWN_RATE or 1.8, 0.1)
        local syncBlend = math.min(dtSeconds * syncDownRate, 1.0)
        state.baseCruiseSpeed = state.baseCruiseSpeed + (estimatedBaseCruiseSpeed - state.baseCruiseSpeed) * syncBlend
    end

    local baseSpeedLimit = state.baseCruiseSpeed
    local implementSpeedLimit = self:getAiWorkerImplementSpeedLimit()
    if implementSpeedLimit ~= math.huge then
        baseSpeedLimit = math.min(baseSpeedLimit, implementSpeedLimit)
    end

    local targetSpeed = math.max(minSpeed, baseSpeedLimit - state.currentReduction)
    local maxUpStep = recoveryRate * dtSeconds
    local maxDownStep = reductionRate * dtSeconds
    if targetSpeed > cruiseSpeed then
        targetSpeed = math.min(targetSpeed, cruiseSpeed + maxUpStep)
    elseif targetSpeed < cruiseSpeed then
        targetSpeed = math.max(targetSpeed, cruiseSpeed - maxDownStep)
    end
    targetSpeed = math.floor(targetSpeed * 10 + 0.5) / 10

    state.applyTimer = (state.applyTimer or 0) + dtMs
    local applyInterval = math.max(config.APPLY_INTERVAL_MS or 180, 50)
    local minApplyDelta = math.max(config.MIN_APPLY_DELTA or 0.2, 0.01)

    local shouldApply = emergency
    if not shouldApply and state.applyTimer >= applyInterval then
        local lastAppliedSpeed = state.lastAppliedSpeed or cruiseSpeed
        if math.abs(targetSpeed - lastAppliedSpeed) >= minApplyDelta or math.abs(targetSpeed - cruiseSpeed) >= minApplyDelta then
            shouldApply = true
        end
    end

    if shouldApply then
        self:setCruiseControlMaxSpeed(targetSpeed, nil)
        state.lastAppliedSpeed = targetSpeed
        state.applyTimer = 0
    end

    state.lastError = error

    if ADS_Config.DEBUG and spec.debugData and spec.debugData.aiWorker then
        local dbg = spec.debugData.aiWorker
        dbg.stress = stress
        dbg.filteredStress = state.filteredStress
        dbg.error = error
        dbg.integral = state.integral
        dbg.derivative = derivative
        dbg.reduction = state.currentReduction
        dbg.targetSpeed = targetSpeed
        dbg.appliedSpeed = state.lastAppliedSpeed or cruiseSpeed
        dbg.baseCruiseSpeed = state.baseCruiseSpeed or 0
        dbg.loadStress = loadStress
        dbg.engineStress = engineStress
        dbg.transStress = transStress
    end
end

-- =========================================================
--                   CORE WEAR FUNCTIONS
-- =========================================================

local function resolveSystemKey(spec, systemName)
    if spec == nil or spec.systems == nil or type(systemName) ~= "string" then
        return systemName
    end

    if spec.systems[systemName] ~= nil then
        return systemName
    end

    local loweredSystemName = string.lower(systemName)
    local weights = ADS_Config ~= nil and ADS_Config.CORE ~= nil and ADS_Config.CORE.SYSTEM_WEIGHTS or nil
    if type(weights) == "table" then
        for weightedKey, _ in pairs(weights) do
            if string.lower(tostring(weightedKey)) == loweredSystemName and spec.systems[weightedKey] ~= nil then
                return weightedKey
            end
        end
    end

    for existingKey, _ in pairs(spec.systems) do
        if string.lower(tostring(existingKey)) == loweredSystemName then
            return existingKey
        end
    end

    return systemName
end

local function ensureSystemData(spec, systemName)
    if spec.systems == nil then
        spec.systems = {}
    end

    systemName = resolveSystemKey(spec, systemName)

    local systemData = spec.systems[systemName]
    if type(systemData) ~= "table" then
        systemData = {
            condition = tonumber(systemData) or 1.0,
            stress = 0.0
        }
        spec.systems[systemName] = systemData
    end

    systemData.condition = math.clamp(tonumber(systemData.condition) or 1.0, 0.001, 1.0)
    systemData.stress = math.max(tonumber(systemData.stress) or 0.0, 0.0)

    return systemData
end

local function getExpiredServiceFactor(serviceLevel, serviceMultiplier)
    if serviceLevel == nil then
        return 0.0
    end

    if serviceLevel < ADS_Config.CORE.SERVICE_EXPIRED_THRESHOLD then
        local severity = math.clamp(
            (ADS_Config.CORE.SERVICE_EXPIRED_THRESHOLD - serviceLevel) / ADS_Config.CORE.SERVICE_EXPIRED_THRESHOLD,
            0.0,
            1.0
        )
        local serviceExpireWear = severity * (serviceMultiplier or 0)
        return serviceExpireWear
    end

    return 0.0
end

function AdvancedDamageSystem:updateServiceLevel(dt)
    local spec = self.spec_AdvancedDamageSystem
    local wearRate = ADS_Config.CORE.BASE_SERVICE_WEAR

    if self.getIsMotorStarted ~= nil and self:getIsMotorStarted() then
        wearRate = wearRate * (1 + spec.extraServiceWear) 
    else
        if spec.isUnderRoof then 
            wearRate = wearRate * ADS_Config.CORE.UNDER_ROOF_DOWNTIME_MULTIPLIER 
        else
            wearRate = wearRate * ADS_Config.CORE.DOWNTIME_MULTIPLIER
        end
    end  

    wearRate = wearRate / spec.reliability
    
    local newLevel = spec.serviceLevel -  wearRate / (60 * 60 * 1000) * dt
    spec.serviceLevel = math.max(newLevel, 0)

    if ADS_Config.DEBUG then
        if spec.debugData == nil then
            spec.debugData = {}
        end
        if spec.debugData.service == nil then
            spec.debugData.service = {}
        end

        local dbg = spec.debugData.service
        dbg.totalWearRate = wearRate
    end
end

function AdvancedDamageSystem:updateConditionLevel()
    local spec = self.spec_AdvancedDamageSystem
    local weightedCondition = 0
    local totalEnabledWeight = 0
    local systemWeights = ADS_Config.CORE.SYSTEM_WEIGHTS or {}

    for systemName, systemData in pairs(spec.systems) do
        if systemData.enabled ~= false then
            local weight = tonumber(systemWeights[systemName]) or 0
            if weight > 0 then
                local systemCondition = tonumber(systemData.condition) or 1.0
                weightedCondition = weightedCondition + systemCondition * weight
                totalEnabledWeight = totalEnabledWeight + weight
            end
        end
    end

    local condition = 1.0
    if totalEnabledWeight > 0 then
        condition = weightedCondition / totalEnabledWeight
    end

    spec.conditionLevel = math.clamp(condition, 0.001, 1.0)
end

function AdvancedDamageSystem:updateSystemConditionAndStress(dt, systemName, wearRate, debugFactors)
    local spec = self.spec_AdvancedDamageSystem
    if spec == nil then
        return
    end

    systemName = resolveSystemKey(spec, systemName)

    local reliability = math.max(spec.reliability or 1.0, 0.001)
    local baseWearRate = 1.0 / reliability
    local systemData = ensureSystemData(spec, systemName)
    wearRate = tonumber(wearRate) or baseWearRate
    wearRate = wearRate * (1 + spec.extraConditionWear) / reliability

    local stressMultipliers = ADS_Config.CORE.SYSTEM_STRESS_ACCUMULATION_MULTIPLIERS or {}
    local systemStressMultiplier = stressMultipliers[systemName] or 1.0
    local globalStressMultiplier = math.max(tonumber(ADS_Config.CORE.SYSTEM_STRESS_GLOBAL_MULTIPLIER) or 1.0, 0.0)
    local dtMultiplier = ADS_Config.CORE.BASE_SYSTEMS_WEAR / (60 * 60 * 1000) * dt

    local conditionToRemove = wearRate * dtMultiplier
    local newCondition = (systemData.condition or 1.0) - conditionToRemove
    systemData.condition = math.clamp(newCondition, 0.001, 1.0)

    local stressToAdd = math.max(wearRate - baseWearRate, 0) * dtMultiplier * systemStressMultiplier * globalStressMultiplier
    systemData.stress = math.max((systemData.stress or 0) + stressToAdd, 0)

    local factorStats = ensureFactorStats(spec, self)
    local systemStats = factorStats[systemName]
    if type(systemStats) == "table" then
        systemStats.total = (tonumber(systemStats.total) or 0) + wearRate * dtMultiplier
        systemStats.stress = (tonumber(systemStats.stress) or 0) + stressToAdd

        if type(debugFactors) == "table" then
            for key, value in pairs(debugFactors) do
                local numericValue = tonumber(value)
                local alias = AdvancedDamageSystem.FACTOR_STATS_ALIASES[tostring(key)]
                if numericValue ~= nil and alias ~= nil then
                    local factorDelta = (numericValue / reliability) * dtMultiplier
                    systemStats[alias] = (tonumber(systemStats[alias]) or 0) + factorDelta
                end
            end
        end
    end

    if ADS_Config.DEBUG and systemName ~= nil then
        if spec.debugData == nil then
            spec.debugData = {}
        end
        if spec.debugData[systemName] == nil then
            spec.debugData[systemName] = {}
        end

        local dbg = spec.debugData[systemName]
        dbg.condition = systemData.condition
        dbg.stress = systemData.stress
        dbg.totalWearRate = wearRate
        dbg.instantStressRate = dt > 0 and (stressToAdd * (60 * 60 * 1000) / dt) or 0

        if debugFactors ~= nil then
            for key, value in pairs(debugFactors) do
                dbg[key] = value
            end
        end
    end
end

function AdvancedDamageSystem:applyInstantDamageToSystem(system, damageAmount)
    local spec = self.spec_AdvancedDamageSystem
    local systemKey = ADS_Utils.getSystemKey(AdvancedDamageSystem.SYSTEMS, system)
    systemKey = resolveSystemKey(spec, systemKey)

    if systemKey == nil or systemKey == "" or spec.systems[systemKey] == nil then
        return
    end

    local dmg = math.max(tonumber(damageAmount) or 0, 0)
    spec.systems[systemKey].condition = math.clamp((spec.systems[systemKey].condition or 1.0) - dmg, 0.001, 1.0)
    local stressToAdd = dmg * (ADS_Config.CORE.SYSTEM_STRESS_ACCUMULATION_MULTIPLIERS[systemKey] or 1)
    local stressCap = math.max(spec.systems[systemKey].condition or 0, ADS_Config.CORE.CONDITION_EFFECTIVE_FLOOR or 0)
    spec.systems[systemKey].stress = math.clamp((spec.systems[systemKey].stress or 0) + stressToAdd, 0, stressCap)

    local factorStats = ensureFactorStats(spec, self)
    local systemStats = factorStats[systemKey]
    if type(systemStats) == "table" then
        systemStats.total = (tonumber(systemStats.total) or 0) + dmg
        systemStats.stress = (tonumber(systemStats.stress) or 0) + stressToAdd
    end
end

-- systems
function AdvancedDamageSystem:updateEngineSystem(dt)
    local spec = self.spec_AdvancedDamageSystem
    local spec_motorized = self.spec_motorized
    local C = ADS_Config.CORE.ENGINE_FACTOR_DATA
    local motorLoadFactor, luggingFactor, expiredServiceFactor, coldMotorFactor, hotMotorFactor, airIntakeCloggingFactor = 0, 0, 0, 0, 0, 0
    local baseWearRate = 1.0
    local wearRate = baseWearRate
    local systemKey = ADS_Utils.getSystemKey(AdvancedDamageSystem.SYSTEMS, spec.systems.engine.name)
    local systemData = spec.systems.engine

    if not systemData.enabled then
        return
    end

    if self.getIsMotorStarted ~= nil and self:getIsMotorStarted() and not spec.isElectricVehicle then
        local motorLoad = self:getMotorLoadPercentage()
        local dynamicMotorLoad = spec.dynamicMotorLoad
        local lastRpm = spec_motorized.motor:getLastModulatedMotorRpm()
        local maxRpm = spec_motorized.motor.maxRpm
        local rpmLoad = lastRpm / maxRpm

        -- overload factor
        if dynamicMotorLoad > C.MOTOR_OVERLOADED_THRESHOLD then
            motorLoadFactor = ADS_Utils.calculateQuadraticMultiplier(dynamicMotorLoad, C.MOTOR_OVERLOADED_THRESHOLD, false, C.MOTOR_OVERLOADED_MAX_EFFECT)
            motorLoadFactor = motorLoadFactor * (C.MOTOR_OVERLOADED_MULTIPLIER or 0)
            wearRate = wearRate + motorLoadFactor
        end

        -- lugging factor
        if dynamicMotorLoad > C.LUGGING_MOTORLOAD_THRESHOLD and rpmLoad < C.LUGGING_RPM_THRESHOLD and self:getLastSpeed() > 0.5 then
            local maxDiff = 0.6
            local minDiff = math.clamp(C.LUGGING_MOTORLOAD_THRESHOLD - C.LUGGING_RPM_THRESHOLD, 0, maxDiff)
            local currentDiff = math.clamp(dynamicMotorLoad - rpmLoad, 0.0, 1.0)
            luggingFactor = ADS_Utils.calculateQuadraticMultiplier(currentDiff, minDiff, false, maxDiff)
            local aiMultiplier = self:getIsAIActive() and 0.5 or 1.0
            luggingFactor = luggingFactor * (C.LUGGING_MULTIPLIER or 0) * aiMultiplier
            wearRate = wearRate + luggingFactor
        end

        -- airintake cloagging factor
        if spec.airIntakeClogging > C.AIR_INTAKE_CLOGGING_THRESHOLD then
            airIntakeCloggingFactor = ADS_Utils.calculateQuadraticMultiplier(spec.airIntakeClogging, C.AIR_INTAKE_CLOGGING_THRESHOLD, false)
            airIntakeCloggingFactor = airIntakeCloggingFactor * (C.AIR_INTAKE_CLOGGING_MULTIPLIER or 0)
            wearRate = wearRate + airIntakeCloggingFactor
        end

        -- cold engine factor
        if (spec.engineTemperature or -99) < C.COLD_MOTOR_TEMP_THRESHOLD and rpmLoad > C.COLD_MOTOR_RPM_THRESHOLD and not spec.isElectricVehicle and not self:getIsAIActive() then
            coldMotorFactor = ADS_Utils.calculateQuadraticMultiplier(spec.engineTemperature, C.COLD_MOTOR_TEMP_THRESHOLD, true)
            local motorLoadInf = ADS_Utils.calculateQuadraticMultiplier(rpmLoad, C.COLD_MOTOR_RPM_THRESHOLD, false)
            coldMotorFactor = coldMotorFactor * (C.COLD_MOTOR_MULTIPLIER or 0) * motorLoadInf
            coldMotorFactor = math.min(coldMotorFactor, C.COLD_MOTOR_MULTIPLIER or coldMotorFactor)
            wearRate = wearRate + coldMotorFactor

        -- overheating engine factor
        elseif (spec.engineTemperature or -99) > C.OVERHEAT_MOTOR_THRESHOLD and motorLoad > 0.3 and not spec.isElectricVehicle then
            hotMotorFactor = ADS_Utils.calculateQuadraticMultiplier(spec.engineTemperature, C.OVERHEAT_MOTOR_THRESHOLD, false, 120)
            local motorLoadInf = ADS_Utils.calculateQuadraticMultiplier(motorLoad, 0.3, false)
            hotMotorFactor = hotMotorFactor * (C.OVERHEAT_MOTOR_MULTIPLIER or C.OVERHEAT_MOTOR_MULTIPLIER or 0) * motorLoadInf
            hotMotorFactor = math.min(hotMotorFactor, C.OVERHEAT_MOTOR_MULTIPLIER or hotMotorFactor)
            wearRate = wearRate + hotMotorFactor
        end

        -- idling
        if motorLoad < C.MOTOR_IDLING_THRESHOLD and self:getLastSpeed() < 0.003 then
            wearRate = wearRate * C.MOTOR_IDLING_MULTIPLIER
        end

        expiredServiceFactor = getExpiredServiceFactor(spec.serviceLevel, C.SERVICE_EXPIRED_MULTIPLIER)
        wearRate = wearRate + expiredServiceFactor
    else
        if spec.isUnderRoof then 
            wearRate = wearRate * ADS_Config.CORE.UNDER_ROOF_DOWNTIME_MULTIPLIER 
        else
            wearRate = wearRate * ADS_Config.CORE.DOWNTIME_MULTIPLIER
        end
    end

    self:updateSystemConditionAndStress(dt, systemKey, wearRate, {
        motorLoadFactor = motorLoadFactor,
        luggingFactor = luggingFactor,
        dynamicMotorLoad = spec.dynamicMotorLoad,
        airIntakeCloggingFactor = airIntakeCloggingFactor,
        expiredServiceFactor = expiredServiceFactor,
        coldMotorFactor = coldMotorFactor,
        hotMotorFactor = hotMotorFactor,
        airIntakeClogging = spec.airIntakeClogging
    })
end

function AdvancedDamageSystem:updateTransmissionSystem(dt)
    local spec = self.spec_AdvancedDamageSystem
    local spec_motorized = self.spec_motorized
    local spec_wheels = self.spec_wheels
    local C = ADS_Config.CORE.TRANSMISSION_FACTOR_DATA
    local systemData = spec.systems.transmission
    systemData.pullOverloadTimer = tonumber(systemData.pullOverloadTimer) or 0
    local vehicleHaveCVT = hasCVTTransmission(self)
    local expiredServiceFactor, pullOverloadFactor, luggingFactor, heavyTrailerFactor, wheelSlipFactor,  coldTransFactor, hotTransFactor = 0, 0, 0, 0, 0, 0, 0
    local wearRate = 1.0
    local hpMassRatio = spec.chassisBrakeState.hpMassRatio or 100
    local systemKey = ADS_Utils.getSystemKey(AdvancedDamageSystem.SYSTEMS, spec.systems.transmission.name)
    
    if not systemData.enabled then
        return
    end

    if hasCVTAddon(self) and self.getIsMotorStarted ~= nil and self:getIsMotorStarted() then
        local spec_CVTaddon = self.spec_CVTaddon

        if self.spec_RealisticDamageSystem == nil then
            self.spec_RealisticDamageSystem = {}
        end

        local currentCVTdamage = math.clamp(tonumber(spec_CVTaddon.CVTdamage) or 0, 0, 100)
        local prevCVTdamage = math.clamp(tonumber(spec._prevCVTdamage) or currentCVTdamage, 0, 100)
        local prevStress = math.max(tonumber(spec._prevStress) or 0, 0)

        local cvtDamageDelta = math.max(currentCVTdamage - prevCVTdamage, 0)
        local normalizedCVTdamage = currentCVTdamage / 100
        local normalizedDelta = cvtDamageDelta / 100

        local systemStressMultiplier = ADS_Config.CORE.SYSTEM_STRESS_ACCUMULATION_MULTIPLIERS[systemKey] or 1.0
        local globalStressMultiplier = math.max(tonumber(ADS_Config.CORE.SYSTEM_STRESS_GLOBAL_MULTIPLIER) or 1.0, 0.001)
        local divisor = math.max(systemStressMultiplier * globalStressMultiplier, 0.001)

        local currentCondition = math.clamp(tonumber(systemData.condition) or 1.0, 0.001, 1.0)
        local conditionToRemove = normalizedDelta / divisor
        local newCondition = math.clamp(currentCondition - conditionToRemove, 0.001, 1.0)

        local currentStress = systemData.stress or 0
        local newStress = math.clamp(currentStress + normalizedDelta, 0, newCondition)
        local previousStress = math.clamp(tonumber(systemData.stress) or 0, 0, math.max(currentCondition, 0.001))

        systemData.condition = newCondition
        systemData.stress = newStress

        spec_CVTaddon.CVTdamage = newStress / math.max(newCondition, 0.001) * 100
        spec._prevCVTdamage = spec_CVTaddon.CVTdamage
        spec._prevStress = newStress

        local factorStats = ensureFactorStats(spec, self)
        local systemStats = factorStats[systemKey]
        if type(systemStats) == "table" then
            systemStats.total = (tonumber(systemStats.total) or 0) + conditionToRemove
            systemStats.stress = (tonumber(systemStats.stress) or 0) + math.max(newStress - previousStress, 0)
        end

        local motorLoad = self:getMotorLoadPercentage()
        local speed = self:getLastSpeed()
        if motorLoad < ADS_Config.CORE.ENGINE_FACTOR_DATA.MOTOR_IDLING_THRESHOLD and speed < 0.003 then
            wearRate = wearRate * C.TRANSMISSION_IDLING_MULTIPLIER
        end

    elseif self.getIsMotorStarted ~= nil and self:getIsMotorStarted() and not spec.isElectricVehicle then
        local motorLoad = self:getMotorLoadPercentage()
        local dynamicMotorLoad = spec.dynamicMotorLoad
        local lastRpm = spec_motorized.motor:getLastModulatedMotorRpm()
        local maxRpm = spec_motorized.motor.maxRpm
        local rpmLoad = lastRpm / maxRpm
        local speed = self:getLastSpeed()
        
        -- pull overload
        local pullOverloadTargetTimer = 0
        if dynamicMotorLoad >= C.PULL_OVERLOAD_THRESHOLD then
            local timerMax = tonumber(C.PULL_OVERLOAD_TIMER_MAX_EFFECT) or 90
            local timerMid = tonumber(C.PULL_OVERLOAD_TIMER_THRESHOLD) or 60
            local timerMin = math.max(timerMid - (timerMax - timerMid), 0)
            local loadMaxForTimer = 1.15
            local loadRange = math.max(loadMaxForTimer - C.PULL_OVERLOAD_THRESHOLD, 0.001)
            local loadRatio = math.clamp((dynamicMotorLoad - C.PULL_OVERLOAD_THRESHOLD) / loadRange, 0.0, 1.0)
            pullOverloadTargetTimer = timerMin + (timerMax - timerMin) * loadRatio
        end

        systemData.pullOverloadTimerMax = pullOverloadTargetTimer
        systemData.pullOverloadTimerMin = dynamicMotorLoad < C.PULL_OVERLOAD_THRESHOLD and 0 or pullOverloadTargetTimer

        if systemData.pullOverloadTimer < pullOverloadTargetTimer then
            systemData.pullOverloadTimer = math.min(systemData.pullOverloadTimer + dt / 1000, pullOverloadTargetTimer)
        elseif systemData.pullOverloadTimer > pullOverloadTargetTimer then
            systemData.pullOverloadTimer = math.max(systemData.pullOverloadTimer - dt / 1000, pullOverloadTargetTimer)
        end

        if speed > 0.5 and systemData.pullOverloadTimer > 0 then
            pullOverloadFactor = ADS_Utils.calculateQuadraticMultiplier(systemData.pullOverloadTimer, 0, false, C.PULL_OVERLOAD_TIMER_MAX_EFFECT)
            pullOverloadFactor = math.clamp(pullOverloadFactor * dynamicMotorLoad * C.PULL_OVERLOAD_MULTIPLIER, 0, C.PULL_OVERLOAD_MULTIPLIER * 5)
            wearRate = wearRate + pullOverloadFactor
        end
 
        -- lugging factor
        if dynamicMotorLoad > C.LUGGING_MOTORLOAD_THRESHOLD and rpmLoad < C.LUGGING_RPM_THRESHOLD and speed > 0.5 then
            local maxDiff = 0.6
            local minDiff = math.clamp(C.LUGGING_MOTORLOAD_THRESHOLD - C.LUGGING_RPM_THRESHOLD, 0, maxDiff)
            local currentDiff = math.clamp(dynamicMotorLoad - rpmLoad, 0.0, 1.0)
            luggingFactor = ADS_Utils.calculateQuadraticMultiplier(currentDiff, minDiff, false, maxDiff)
            local aiMultiplier = self:getIsAIActive() and 0.5 or 1.0
            luggingFactor = luggingFactor * C.LUGGING_MULTIPLIER * aiMultiplier
            wearRate = wearRate + luggingFactor
            --- tutorial timer
            spec.luggingTutorialTimer = math.min((spec.luggingTutorialTimer or 0) + dt, 5000)
        else
             spec.luggingTutorialTimer = math.max((spec.luggingTutorialTimer or 0) - dt, 0)
        end

        -- heavy trailer factor
        if hpMassRatio < C.HEAVY_TRAILER_MASS_RATIO_THRESHOLD and motorLoad > C.HEAVY_TRAILER_MOTORLOAD_THRESHOLD and speed > 0.5 then
            heavyTrailerFactor = ADS_Utils.calculateQuadraticMultiplier(hpMassRatio, C.HEAVY_TRAILER_MASS_RATIO_THRESHOLD, true, 5.0)
            local loadRange = math.max(1.0 - C.HEAVY_TRAILER_MOTORLOAD_THRESHOLD, 0.001)
            local loadRatio = math.clamp((motorLoad - C.HEAVY_TRAILER_MOTORLOAD_THRESHOLD) / loadRange, 0, 1.0)
            heavyTrailerFactor = math.max(heavyTrailerFactor * C.HEAVY_TRAILER_MULTIPLIER * loadRatio, 0)
            heavyTrailerFactor = math.min(heavyTrailerFactor, C.HEAVY_TRAILER_MULTIPLIER or heavyTrailerFactor)
            wearRate = wearRate + heavyTrailerFactor
        end

        -- wheel slip factor
        if spec.wheelSlipIntensity > C.WHEEL_SLIP_THRESHOLD and speed < 20 and motorLoad > 0.5 then
            local groundFrictionCoef = spec.avgTireGroundFrictionCoeff
            wheelSlipFactor = ADS_Utils.calculateQuadraticMultiplier(spec.wheelSlipIntensity, C.WHEEL_SLIP_THRESHOLD, false)
            wheelSlipFactor = math.max(wheelSlipFactor * (C.WHEEL_SLIP_MULTIPLIER or 0) * (groundFrictionCoef ^ 2) * motorLoad, 0)
            wearRate = wearRate + wheelSlipFactor
            --- tutorial timer
            spec.wheelSlipTutorialTimer = math.min((spec.wheelSlipTutorialTimer or 0) + dt, 3000)
        else
             spec.wheelSlipTutorialTimer = math.max((spec.wheelSlipTutorialTimer or 0) - dt, 0)
        end

        if vehicleHaveCVT then
            -- cold CVT factor
            if (spec.transmissionTemperature or -99) < C.COLD_TRANSMISSION_THRESHOLD and rpmLoad > 0.75 and not spec.isElectricVehicle and not self:getIsAIActive() then
                coldTransFactor = ADS_Utils.calculateQuadraticMultiplier(spec.transmissionTemperature, C.COLD_TRANSMISSION_THRESHOLD, true)
                local motorLoadInf = ADS_Utils.calculateQuadraticMultiplier(rpmLoad, 0.5, false)
                coldTransFactor = coldTransFactor * C.COLD_TRANSMISSION_MULTIPLIER * motorLoadInf
                coldTransFactor = math.min(coldTransFactor, C.COLD_TRANSMISSION_MULTIPLIER or coldTransFactor)
                wearRate = wearRate + coldTransFactor

            -- overheating CVT factor
            elseif (spec.transmissionTemperature or -99) > C.OVERHEAT_TRANSMISSION_THRESHOLD and motorLoad > 0.3 and not spec.isElectricVehicle then
                local transTemp = spec.transmissionTemperature
                hotTransFactor = ADS_Utils.calculateQuadraticMultiplier(transTemp, C.OVERHEAT_TRANSMISSION_THRESHOLD, false, 120)
                local motorLoadInf = ADS_Utils.calculateQuadraticMultiplier(rpmLoad, 0.5, false)
                hotTransFactor = hotTransFactor * C.OVERHEAT_TRANSMISSION_MAX_MULTIPLIER * motorLoadInf
                hotTransFactor = math.min(hotTransFactor, C.OVERHEAT_TRANSMISSION_MAX_MULTIPLIER or hotTransFactor)
                wearRate = wearRate + hotTransFactor
            end
        end

        -- idling
        if motorLoad < ADS_Config.CORE.ENGINE_FACTOR_DATA.MOTOR_IDLING_THRESHOLD and speed < 0.003 then
            wearRate = wearRate * C.TRANSMISSION_IDLING_MULTIPLIER
        end

        -- service
        expiredServiceFactor = getExpiredServiceFactor(spec.serviceLevel, C.SERVICE_EXPIRED_MULTIPLIER or ADS_Config.CORE.ENGINE_FACTOR_DATA.SERVICE_EXPIRED_MULTIPLIER)
        wearRate = wearRate + expiredServiceFactor
    else
        if hasCVTAddon(self) then
            local spec_CVTaddon = self.spec_CVTaddon
            spec_CVTaddon.CVTdamage = systemData.stress / math.max(systemData.condition, 0.001) * 100
        end

        if spec.isUnderRoof then 
            wearRate = wearRate * ADS_Config.CORE.UNDER_ROOF_DOWNTIME_MULTIPLIER 
        else
            wearRate = wearRate * ADS_Config.CORE.DOWNTIME_MULTIPLIER
        end
    end

    self:updateSystemConditionAndStress(dt, systemKey, wearRate, {
        expiredServiceFactor = expiredServiceFactor,
        pullOverloadFactor = pullOverloadFactor,
        pullOverloadTimer = systemData.pullOverloadTimer,
        pullOverloadTimerMin = systemData.pullOverloadTimerMin,
        pullOverloadTimerMax = systemData.pullOverloadTimerMax,
        heavyTrailerFactor = heavyTrailerFactor,
        heavyTrailerMassRatio = hpMassRatio,
        luggingFactor = luggingFactor,
        wheelSlipFactor = wheelSlipFactor,
        coldTransFactor = coldTransFactor,
        coldMotorFactor = coldTransFactor,
        hotTransFactor = hotTransFactor
    })
end

function AdvancedDamageSystem:updateHydraulicsSystem(dt)
    local spec = self.spec_AdvancedDamageSystem
    local systemKey = ADS_Utils.getSystemKey(AdvancedDamageSystem.SYSTEMS, spec.systems.hydraulics.name)
    local systemData = spec.systems.hydraulics
    local expiredServiceFactor = 0
    local C = ADS_Config.CORE.HYDRAULICS_FACTOR_DATA
    local heavyLiftFactor, operatingFactor, coldOilFactor, sharpAngleFactor, vibFactor = 0, 0, 0, 0, 0
    local ptoSharpAngleDeg = tonumber(spec.maxConnectedPtoAngleDeg or 0) or 0
    local vibState = spec.chassisVibState or {}
    local vibSignal = tonumber(vibState.signal or 0) or 0
    local vibRaw = tonumber(vibState.raw or 0) or 0
    local vibFieldMultiplier = tonumber(vibState.fieldMultiplier or 1) or 1
    local wearRate = 1.0
    local vehicleMass = self.getTotalMass ~= nil and (self:getTotalMass(true) or 0) or 0
    local heavyLiftMassRatio, operatingMassRatio = 0, 0
    
    systemData.operatingTimer = tonumber(systemData.operatingTimer) or 0

    if not systemData.enabled then
        return
    end

    if self.getIsMotorStarted ~= nil and self:getIsMotorStarted() then
        if spec.isImplementLifted or spec.isImplementOperating or spec.isPtoActive then
            -- operating and cold oil
            if spec.isImplementOperating then
                systemData.operatingTimer = math.min(systemData.operatingTimer + dt, 30000)
                operatingMassRatio = vehicleMass > 0 and (spec.operatingMass / vehicleMass) or 0
                if operatingMassRatio > C.OPERATING_FACTOR_THRESHOLD then
                    operatingFactor = ADS_Utils.calculateQuadraticMultiplier(operatingMassRatio, C.OPERATING_FACTOR_THRESHOLD, false)
                    operatingFactor = math.min(operatingFactor * (C.OPERATING_FACTOR_MULTIPLIER or 0), C.OPERATING_FACTOR_MULTIPLIER) * math.max(systemData.operatingTimer / 10000, 1)
                    wearRate = wearRate + operatingFactor
                end
                -- cold oil
                if (spec.engineTemperature or 0) < C.COLD_OIL_THRESHOLD then
                    coldOilFactor = ADS_Utils.calculateQuadraticMultiplier(spec.engineTemperature, C.COLD_OIL_THRESHOLD, true)
                    coldOilFactor = coldOilFactor * (C.COLD_OIL_MULTIPLIER or 0) * (1 + ADS_Utils.calculateQuadraticMultiplier(operatingMassRatio, 0, false))
                    coldOilFactor = math.min(coldOilFactor, (C.COLD_OIL_MULTIPLIER or 0) * 2)
                    wearRate = wearRate + coldOilFactor
                end
            end

            -- heavy lift
            heavyLiftMassRatio = vehicleMass > 0 and (spec.liftedMass / vehicleMass) or 0
            if heavyLiftMassRatio > (C.HEAVY_LIFT_FACTOR_THRESHOLD or 0) then
                heavyLiftFactor = ADS_Utils.calculateQuadraticMultiplier(heavyLiftMassRatio, C.HEAVY_LIFT_FACTOR_THRESHOLD, false)
                heavyLiftFactor = heavyLiftFactor * (C.HEAVY_LIFT_FACTOR_MULTIPLIER or 0)
                heavyLiftFactor = math.min(heavyLiftFactor, C.HEAVY_LIFT_FACTOR_MULTIPLIER or heavyLiftFactor)
                wearRate = wearRate + heavyLiftFactor
            end

            -- vibration factor
            local vibThreshold = tonumber(C.VIB_FACTOR_THRESHOLD) or 0.12
            if spec.isImplementLifted and (tonumber(vibState.smoothed or 0) or 0) > vibThreshold then
                local vibMaxSignal = tonumber(C.VIB_FACTOR_MAX_SIGNAL) or 0.22
                local vibMaxForCurve = math.max(vibMaxSignal, vibThreshold + 0.001)
                local liftRatioPivot = tonumber(C.HEAVY_LIFT_FACTOR_THRESHOLD) or 0.6
                local liftRatioInfluence = 1.0
                if heavyLiftMassRatio > liftRatioPivot then
                    liftRatioInfluence = 1.0 + ADS_Utils.calculateQuadraticMultiplier(heavyLiftMassRatio, liftRatioPivot, false, 1.0)
                elseif heavyLiftMassRatio < liftRatioPivot then
                    liftRatioInfluence = 1.0 - 0.5 * ADS_Utils.calculateQuadraticMultiplier(heavyLiftMassRatio, liftRatioPivot, true, 0.0)
                end
                local vibMultiplier = (tonumber(C.VIB_FACTOR_MULTIPLIER) or 4.0) * vibFieldMultiplier * liftRatioInfluence
                vibFactor = ADS_Utils.calculateQuadraticMultiplier(tonumber(vibState.smoothed or 0) or 0, vibThreshold, false, vibMaxForCurve)
                vibFactor = vibFactor * vibMultiplier
                vibFactor = math.min(vibFactor, vibMultiplier)
                wearRate = wearRate + vibFactor
            end

            if spec.isPtoActive then
                -- pto sharp angle factor
                local ptoAngleDeg = tonumber(spec.maxConnectedPtoAngleDeg or 0) or 0
                local hasConnectedPto = spec.hasConnectedPto == true
                ptoSharpAngleDeg = ptoAngleDeg
                local sharpAngleThreshold = C.PTO_SHARP_ANGLE_FACTOR_THRESHOLD or 30
                if sharpAngleThreshold <= (2 * math.pi + 0.001) then
                    sharpAngleThreshold = math.deg(sharpAngleThreshold)
                end

                if hasConnectedPto and ptoAngleDeg > sharpAngleThreshold and not spec.isExcludedFromPTOSharpAngleFactor then
                    sharpAngleFactor = ADS_Utils.calculateQuadraticMultiplier(ptoAngleDeg, sharpAngleThreshold, false, 50)
                    sharpAngleFactor = sharpAngleFactor * (C.PTO_SHARP_ANGLE_FACTOR_MULTIPLIER or 0)
                    sharpAngleFactor = math.min(sharpAngleFactor, C.PTO_SHARP_ANGLE_FACTOR_MULTIPLIER or sharpAngleFactor)
                    wearRate = wearRate + sharpAngleFactor
                end
            end

        else
            --idling
            wearRate = wearRate * C.HYDRAULICS_IDLING_MULTIPLIER
        end

        -- service factor
        expiredServiceFactor = getExpiredServiceFactor(spec.serviceLevel, C.SERVICE_EXPIRED_MULTIPLIER)
        wearRate = wearRate + expiredServiceFactor

    else
        if spec.isUnderRoof then 
            wearRate = wearRate * ADS_Config.CORE.UNDER_ROOF_DOWNTIME_MULTIPLIER 
        else
            wearRate = wearRate * ADS_Config.CORE.DOWNTIME_MULTIPLIER
        end
    end

    if not spec.isImplementOperating then
        systemData.operatingTimer = math.max(systemData.operatingTimer - dt / 3, 0)
    end

    self:updateSystemConditionAndStress(dt, systemKey, wearRate, {
        expiredServiceFactor = expiredServiceFactor,
        heavyLiftFactor = heavyLiftFactor,
        heavyLiftMassRatio = heavyLiftMassRatio,
        operatingFactor = operatingFactor,
        operatingMassRatio = operatingMassRatio,
        operatingTimer = systemData.operatingTimer or 0,
        vibFactor = vibFactor,
        vibSignal = vibSignal,
        vibRaw = vibRaw,
        vibFieldMultiplier = vibFieldMultiplier,
        coldOilFactor = coldOilFactor,
        sharpAngleFactor = sharpAngleFactor,
        ptoSharpAngleDeg = ptoSharpAngleDeg
    })
end

function AdvancedDamageSystem:updateCoolingSystem(dt)
    local spec = self.spec_AdvancedDamageSystem
    local spec_motorized = self.spec_motorized
    local systemKey = ADS_Utils.getSystemKey(AdvancedDamageSystem.SYSTEMS, spec.systems.cooling.name)
    local systemData = spec.systems.cooling
    local expiredServiceFactor = 0
    local C = ADS_Config.CORE.COOLING_FACTOR_DATA
    local highCoolingFactor, overheatFactor, coldShockFactor = 0, 0, 0
    local wearRate = 1.0

    if not systemData.enabled then
        return
    end

    if self.getIsMotorStarted ~= nil and self:getIsMotorStarted() and not spec.isElectricVehicle then
        local lastRpm = spec_motorized.motor:getLastModulatedMotorRpm()
        local maxRpm = spec_motorized.motor.maxRpm
        local rpmLoad = lastRpm / maxRpm

        -- high cooling
        if spec.thermostatState > 0.0 then
            if spec.thermostatState > C.HIGH_COOLING_FACTOR_THRESHOLD then
                highCoolingFactor = ADS_Utils.calculateQuadraticMultiplier(spec.thermostatState, C.HIGH_COOLING_FACTOR_THRESHOLD, false)
                highCoolingFactor = highCoolingFactor * (C.HIGH_COOLING_FACTOR_MULTIPLIER or 0)
                highCoolingFactor = math.min(highCoolingFactor, C.HIGH_COOLING_FACTOR_MULTIPLIER or highCoolingFactor)
                wearRate = wearRate + highCoolingFactor
            end
        end

        -- overheat
        if (spec.engineTemperature or -99) > C.OVERHEAT_FACTOR_THRESHOLD then
            overheatFactor = ADS_Utils.calculateQuadraticMultiplier(spec.engineTemperature, C.OVERHEAT_FACTOR_THRESHOLD, false, 120)
            overheatFactor = overheatFactor * (C.OVERHEAT_FACTOR_MULTIPLIER or 0)
            overheatFactor = math.min(overheatFactor, C.OVERHEAT_FACTOR_MULTIPLIER or overheatFactor)
            wearRate = wearRate + overheatFactor
        end

        -- cold shock
        if (spec.engineTemperature or -99) < C.COLD_SHOCK_FACTOR_THRESHOLD and rpmLoad > 0.75 and not self:getIsAIActive() then
            coldShockFactor = ADS_Utils.calculateQuadraticMultiplier(spec.engineTemperature, C.COLD_SHOCK_FACTOR_THRESHOLD, true)
            local motorLoadInf = ADS_Utils.calculateQuadraticMultiplier(rpmLoad, 0.75, false)
            coldShockFactor = coldShockFactor * (C.COLD_SHOCK_FACTOR_MULTIPLIER or 0) * motorLoadInf
            coldShockFactor = math.min(coldShockFactor, C.COLD_SHOCK_FACTOR_MULTIPLIER or coldShockFactor)
            wearRate = wearRate + coldShockFactor
        end

        -- idling
        if spec.thermostatState == 0 and overheatFactor == 0 and coldShockFactor == 0 then
            wearRate = wearRate * C.COOLING_IDLING_MULTIPLIER
        end

        -- service factor
        expiredServiceFactor = getExpiredServiceFactor(spec.serviceLevel, C.SERVICE_EXPIRED_MULTIPLIER)
        wearRate = wearRate + expiredServiceFactor
    else
        if spec.isUnderRoof then 
            wearRate = wearRate * ADS_Config.CORE.UNDER_ROOF_DOWNTIME_MULTIPLIER 
        else
            wearRate = wearRate * ADS_Config.CORE.DOWNTIME_MULTIPLIER
        end
    end

    self:updateSystemConditionAndStress(dt, systemKey, wearRate, {
        expiredServiceFactor = expiredServiceFactor,
        highCoolingFactor = highCoolingFactor,
        overheatFactor = overheatFactor,
        coldShockFactor = coldShockFactor
    })
end

function AdvancedDamageSystem:updateElectricalSystem(dt)
    local spec = self.spec_AdvancedDamageSystem
    local systemKey = ADS_Utils.getSystemKey(AdvancedDamageSystem.SYSTEMS, spec.systems.electrical.name)
    local systemData = spec.systems.electrical
    if systemData == nil then return end
    local vibState = spec.chassisVibState or {}
    local vibSignal = tonumber(vibState.signal or 0) or 0
    local vibRaw = tonumber(vibState.raw or 0) or 0
    local vibFieldMultiplier = tonumber(vibState.fieldMultiplier or 1) or 1
    local expiredServiceFactor, weatherExposureFactor, lightsFactor, overheatFactor, crankingStressFactor, vibFactor = 0, 0, 0, 0, 0, 0
    local C = ADS_Config.CORE.ELECTRICAL_FACTOR_DATA
    local wearRate = 1.0

    if not systemData.enabled then
        return
    end

    local isOutdoor = not spec.isUnderRoof

    -- lights factor
    if self.spec_lights ~= nil and self.getLightsTypesMask ~= nil then
        local lightsSpec = self.spec_lights
        local lightsMask = tonumber(self:getLightsTypesMask()) or 0
        local maxLightStateMask = tonumber(lightsSpec.maxLightStateMask) or 0
        local activeMainLightsMask = lightsMask

        if maxLightStateMask > 0 and bitAND ~= nil then
            activeMainLightsMask = bitAND(lightsMask, maxLightStateMask)
        end

        if activeMainLightsMask > 0 then
            lightsFactor = C.LIGHTS_FACTOR_MULTIPLIER or 0
            wearRate = wearRate + lightsFactor
        end
    end

    -- weather factor
    if isOutdoor then
        local weatherType = ADS_Main.currentWeather
        if weatherType == WeatherType.RAIN then
            weatherExposureFactor = C.RAIN_FACTOR_MULTIPLIER or 0
        elseif weatherType == WeatherType.SNOW then
            weatherExposureFactor = C.SNOW_FACTOR_MULTIPLIER or 0
        elseif weatherType == WeatherType.HAIL then
            weatherExposureFactor = C.HAIL_FACTOR_MULTIPLIER or C.HALL_FACTOR_MULTIPLIER or 0
        end
        wearRate = wearRate + weatherExposureFactor
    end

    -- cranking factor
    systemData.crankingTimer = systemData.crankingTimer or 0
    if not spec.isElectricVehicle and spec.isCranking then
        systemData.crankingTimer = math.min(systemData.crankingTimer + dt, 10000)
        if systemData.crankingTimer > 3500 then
            crankingStressFactor = C.CRANKING_STRESS_MULTIPLIER
            wearRate = wearRate + crankingStressFactor
        end
    else
        systemData.crankingTimer = math.max(systemData.crankingTimer - dt / 100, 0)
    end

    if self:getIsMotorStarted() and not spec.isElectricVehicle then
        -- service factor
        expiredServiceFactor = getExpiredServiceFactor(spec.serviceLevel, C.SERVICE_EXPIRED_MULTIPLIER)
        wearRate = wearRate + expiredServiceFactor

        -- overheating engine compartment
        if (spec.engineTemperature or -99) > C.OVERHEAT_FACTOR_THRESHOLD then
            overheatFactor = ADS_Utils.calculateQuadraticMultiplier(spec.engineTemperature, C.OVERHEAT_FACTOR_THRESHOLD, false, 120)
            overheatFactor = overheatFactor * (C.OVERHEAT_FACTOR_MULTIPLIER or 0)
            overheatFactor = math.min(overheatFactor, C.OVERHEAT_FACTOR_MULTIPLIER or overheatFactor)
            wearRate = wearRate + overheatFactor
        end

        -- vibration factor
        local vibThreshold = tonumber(C.VIB_FACTOR_THRESHOLD) or 0.12
        if (tonumber(vibState.smoothed or 0) or 0) > vibThreshold then
            local vibMaxSignal = tonumber(C.VIB_FACTOR_MAX_SIGNAL) or 0.22
            local vibMaxForCurve = math.max(vibMaxSignal, vibThreshold + 0.001)
            local vibMultiplier = (tonumber(C.VIB_FACTOR_MULTIPLIER) or 4.0) * vibFieldMultiplier
            vibFactor = ADS_Utils.calculateQuadraticMultiplier(tonumber(vibState.smoothed or 0) or 0, vibThreshold, false, vibMaxForCurve)
            vibFactor = vibFactor * vibMultiplier
            vibFactor = math.min(vibFactor, vibMultiplier)
            wearRate = wearRate + vibFactor
        end

    elseif lightsFactor == 0 and crankingStressFactor == 0 then 
        if spec.isUnderRoof then 
            wearRate = wearRate * ADS_Config.CORE.UNDER_ROOF_DOWNTIME_MULTIPLIER 
        else
            wearRate = wearRate * ADS_Config.CORE.DOWNTIME_MULTIPLIER 
        end
    end

    self:updateSystemConditionAndStress(dt, systemKey, wearRate, {
        expiredServiceFactor = expiredServiceFactor,
        crankingStressFactor = crankingStressFactor,
        crankingTimer = systemData.crankingTimer or 0,
        weatherExposureFactor = weatherExposureFactor,
        lightsFactor = lightsFactor,
        overheatFactor = overheatFactor,
        vibFactor = vibFactor,
        vibSignal = vibSignal,
        vibRaw = vibRaw,
        vibFieldMultiplier = vibFieldMultiplier
    })
end

function AdvancedDamageSystem:updateChassisSystem(dt)
    local spec = self.spec_AdvancedDamageSystem
    local systemKey = ADS_Utils.getSystemKey(AdvancedDamageSystem.SYSTEMS, spec.systems.chassis.name)
    local systemData = spec.systems.chassis
    local expiredServiceFactor, vibFactor, steerLoadFactor = 0, 0, 0
    local vibState = spec.chassisVibState or {}
    local steerState = spec.chassisSteerState or {}
    local brakeState = spec.chassisBrakeState or {}
    local vibSignal = tonumber(vibState.signal or 0) or 0
    local vibRaw = tonumber(vibState.raw or 0) or 0
    local vibWheelCount = tonumber(vibState.wheelCount or 0) or 0
    local vibSpeedFactor = tonumber(vibState.speedFactor or 0) or 0
    local vibAvgDensityType = tonumber(vibState.avgDensityType or 0) or 0
    local vibFieldMultiplier = tonumber(vibState.fieldMultiplier or 1) or 1
    local steerLowSpeedFactor = 0
    local steerGroundContact = tonumber(steerState.groundContact or 0) or 0
    local steerRateFactor = tonumber(steerState.rateFactor or 0) or 0
    local steerDeltaRate = tonumber(steerState.deltaRate or 0) or 0
    local steerMoving = steerState.isMoving == true
    local brakeMassFactor = 0
    local hpBrakeMassRatio = tonumber(brakeState.hpMassRatio or 0) or 0
    local brakePedal = tonumber(brakeState.pedal or 0) or 0
    local C = ADS_Config.CORE.CHASSIS_FACTOR_DATA
    local wearRate = 1.0

    if not systemData.enabled then
        return
    end

    local speed = tonumber(self.getLastSpeed ~= nil and self:getLastSpeed() or 0) or 0


    if self.getIsMotorStarted ~= nil and self:getIsMotorStarted() then
        if speed > 0.003 then
            -- vibration
            local vibThreshold = tonumber(C.VIB_FACTOR_THRESHOLD) or 0.12
            if (tonumber(vibState.smoothed or 0) or 0) > vibThreshold then
                local vibMaxSignal = tonumber(C.VIB_FACTOR_MAX_SIGNAL) or 0.22
                local vibMaxForCurve = math.max(vibMaxSignal, vibThreshold + 0.001)
                local vibMultiplier = (tonumber(C.VIB_FACTOR_MULTIPLIER) or 4.0) * vibFieldMultiplier
                vibFactor = ADS_Utils.calculateQuadraticMultiplier(tonumber(vibState.smoothed or 0) or 0, vibThreshold, false, vibMaxForCurve)
                vibFactor = vibFactor * vibMultiplier
                vibFactor = math.min(vibFactor, vibMultiplier)
                wearRate = wearRate + vibFactor
            end

            -- braking under mass
            if brakeState.isBraking and speed > (tonumber(C.BRAKE_MASS_SPEED_THRESHOLD) or 2.0) then
                local ratioThreshold = tonumber(C.BRAKE_MASS_RATIO_THRESHOLD) or 12.0
                if hpBrakeMassRatio < ratioThreshold then
                    local ratioFactor = ADS_Utils.calculateQuadraticMultiplier(hpBrakeMassRatio, ratioThreshold, true, 5.0)
                    local brakeInputFactor = brakePedal
                    brakeMassFactor = ratioFactor * brakeInputFactor * (tonumber(C.BRAKE_MASS_FACTOR_MULTIPLIER) or 6.0)
                    brakeMassFactor = math.min(brakeMassFactor, tonumber(C.BRAKE_MASS_FACTOR_MULTIPLIER) or brakeMassFactor)
                    wearRate = wearRate + brakeMassFactor
                end
            end

        else
            wearRate = wearRate * C.CHASSIS_IDLING_MULTIPLIER    
        end

        -- steering load at standstill / low speed
        local steerSpeedThreshold = tonumber(C.STEER_LOAD_SPEED_THRESHOLD) or 4.0
        if steerSpeedThreshold > 0 and steerState.isLowSpeedActive and steerGroundContact > 0 and steerMoving then
            steerLowSpeedFactor = ADS_Utils.calculateQuadraticMultiplier(math.clamp(speed, 0, steerSpeedThreshold), steerSpeedThreshold, true)
            if steerLowSpeedFactor > 0 then
                steerLoadFactor = steerLowSpeedFactor * steerRateFactor * (tonumber(C.STEER_LOAD_FACTOR_MULTIPLIER) or 5.0)
                wearRate = wearRate + steerLoadFactor
            end
        end

        -- service
        if not spec.isElectricVehicle then
            expiredServiceFactor = getExpiredServiceFactor(spec.serviceLevel, C.SERVICE_EXPIRED_MULTIPLIER)
            wearRate = wearRate + expiredServiceFactor
        end
    else
        if spec.isUnderRoof then 
            wearRate = wearRate * ADS_Config.CORE.UNDER_ROOF_DOWNTIME_MULTIPLIER 
        else
            wearRate = wearRate * ADS_Config.CORE.DOWNTIME_MULTIPLIER 
        end
    end

    self:updateSystemConditionAndStress(dt, systemKey, wearRate, {
        expiredServiceFactor = expiredServiceFactor,
        vibFactor = vibFactor,
        vibSignal = vibSignal,
        vibRaw = vibRaw,
        vibWheelCount = vibWheelCount,
        vibSpeedFactor = vibSpeedFactor,
        vibSpeedKmh = speed,
        vibAvgDensityType = vibAvgDensityType,
        vibFieldMultiplier = vibFieldMultiplier,
        steerLoadFactor = steerLoadFactor,
        steerLowSpeedFactor = steerLowSpeedFactor,
        steerRateFactor = steerRateFactor,
        steerDeltaRate = steerDeltaRate,
        steerGroundContact = steerGroundContact,
        steerMoving = steerMoving,
        brakeMassFactor = brakeMassFactor,
        brakeMassRatio = hpBrakeMassRatio,
        brakePedal = brakePedal
    })
end

function AdvancedDamageSystem:updateFuelSystem(dt)
    local spec = self.spec_AdvancedDamageSystem
    local systemKey = ADS_Utils.getSystemKey(AdvancedDamageSystem.SYSTEMS, spec.systems.fuel.name)
    local systemData = spec.systems.fuel
    if systemData == nil then return end
    local lowFuelStarvationFactor, coldFuelFactor = 0, 0
    local expiredServiceFactor, fuelLevel, fuelTemperature, idleDepositFactor, highPressureFactor = 0, 0, 0, 0, 0
    local currentFuelUsageRatio = 0
    local C = ADS_Config.CORE.FUEL_FACTOR_DATA
    local wearRate = 1.0
    local fuelState = spec.fuelState or {}

    if not systemData.enabled then
        return
    end

    if self.getIsMotorStarted ~= nil and self:getIsMotorStarted() and not spec.isElectricVehicle then
        local motorLoad = self:getMotorLoadPercentage()
        fuelLevel = tonumber(fuelState.level or 0) or 0
        currentFuelUsageRatio = tonumber(fuelState.currentUsageRatio or 0) or 0

        -- low fuel
        if fuelLevel < C.LOW_FUEL_THRESHOLD then
            lowFuelStarvationFactor = ADS_Utils.calculateQuadraticMultiplier(fuelLevel, C.LOW_FUEL_THRESHOLD, true)
            local motorLoadInf = 1 + ADS_Utils.calculateQuadraticMultiplier(motorLoad, 0.70, false)
            lowFuelStarvationFactor = lowFuelStarvationFactor * motorLoadInf * C.LOW_FUEL_FACTOR_MULTIPLIER
            wearRate = wearRate + lowFuelStarvationFactor
        end

        -- cold fuel factor
        fuelTemperature = tonumber(fuelState.temperature or 0) or 0
        if fuelTemperature < C.COLD_FUEL_THRESHOLD and motorLoad > 0.5 then
            coldFuelFactor = ADS_Utils.calculateQuadraticMultiplier(fuelTemperature, C.COLD_FUEL_THRESHOLD, true)
            local motorLoadInf = ADS_Utils.calculateQuadraticMultiplier(motorLoad, 0.50, false)
            coldFuelFactor = coldFuelFactor * motorLoadInf * C.COLD_FUEL_FACTOR_MULTIPLIER
            coldFuelFactor = math.min(coldFuelFactor, C.COLD_FUEL_FACTOR_MULTIPLIER or coldFuelFactor)
            wearRate = wearRate + coldFuelFactor
        end

        -- idle deposit
        local idleTimer = math.max(tonumber(fuelState.idleTimer) or 0, 0)
        if idleTimer >= C.IDLE_DEPOSIT_FACTOR_TIMER_THRESHOLD then
            idleDepositFactor = ADS_Utils.calculateQuadraticMultiplier(
                idleTimer,
                C.IDLE_DEPOSIT_FACTOR_TIMER_THRESHOLD,
                false,
                C.IDLE_DEPOSIT_FACTOR_MAX_TIMER
            )
            idleDepositFactor = idleDepositFactor * C.IDLE_DEPOSIT_FACTOR_MULTIPLIER
            wearRate = wearRate + idleDepositFactor
        end

        -- high pressure factor
        local highPressureThreshold = tonumber(C.HIGH_PRESSURE_FACTOR_THRESHOLD) or 0.8
        if currentFuelUsageRatio > highPressureThreshold then
            highPressureFactor = ADS_Utils.calculateQuadraticMultiplier(currentFuelUsageRatio, highPressureThreshold, false)
            highPressureFactor = math.min(highPressureFactor * C.HIGH_PRESSURE_FACTOR_MULTIPLIER, C.HIGH_PRESSURE_FACTOR_MULTIPLIER)
            wearRate = wearRate + highPressureFactor
        end

        -- service
        expiredServiceFactor = getExpiredServiceFactor(spec.serviceLevel, C.SERVICE_EXPIRED_MULTIPLIER)
        wearRate = wearRate + expiredServiceFactor
    else
        if spec.isUnderRoof then 
            wearRate = wearRate * ADS_Config.CORE.UNDER_ROOF_DOWNTIME_MULTIPLIER 
        else
            wearRate = wearRate * ADS_Config.CORE.DOWNTIME_MULTIPLIER
        end
    end

    self:updateSystemConditionAndStress(dt, systemKey, wearRate, {
        expiredServiceFactor = expiredServiceFactor,
        lowFuelStarvationFactor = lowFuelStarvationFactor,
        coldFuelFactor = coldFuelFactor,
        idleDepositFactor = idleDepositFactor,
        highPressureFactor = highPressureFactor,
        currentFuelUsageRatio = currentFuelUsageRatio,
        idleTimer = tonumber(fuelState.idleTimer or 0) or 0,
        fuelLevel = fuelLevel,
        fuelTemperature = fuelTemperature
    })
end

function AdvancedDamageSystem:updateWorkProcessSystem(dt)
    local spec = self.spec_AdvancedDamageSystem
    local systemKey = ADS_Utils.getSystemKey(AdvancedDamageSystem.SYSTEMS, spec.systems.workprocess.name)
    local systemData = ensureSystemData(spec, systemKey)
    local expiredServiceFactor = 0
    local wetCropFactor, lubricationFactor = 0, 0
    local C = ADS_Config.CORE.WORKPROCESS_FACTOR_DATA
    local wearRate = 1.0

    if not systemData.enabled then
        return
    end

    local isMotorStarted = self.getIsMotorStarted ~= nil and self:getIsMotorStarted()
    local isTurnedOn = self.getIsTurnedOn ~= nil and self:getIsTurnedOn()

    local currentWeather = ADS_Main.currentWeather
    local isHail = (WeatherType.HAIL ~= nil and currentWeather == WeatherType.HAIL) or (WeatherType.HALL ~= nil and currentWeather == WeatherType.HALL)
    local isWetWeather = currentWeather == WeatherType.RAIN or currentWeather == WeatherType.SNOW or isHail
    local isHarvestingInProcess = spec.isHarvesting == true

    if isMotorStarted and not spec.isElectricVehicle then
        if not isTurnedOn then
            wearRate = wearRate * C.WORKPROCESSS_IDLING_MULTIPLIER
        end

        -- wetCrop
        if isTurnedOn and isWetWeather and isHarvestingInProcess then
            wetCropFactor = C.WET_CROP_FACTOR_MULTIPLIER
            wearRate = wearRate + wetCropFactor
        end

        -- lubrication
        if isTurnedOn and spec.isVehicleNeedLubricate then
            local lubricationLevel = math.clamp(tonumber(spec.lubricationLevel) or 1.0, 0.0, 1.0)
            lubricationFactor = ADS_Utils.calculateQuadraticMultiplier(lubricationLevel, 1.0, true, 0.0)
            lubricationFactor = lubricationFactor * (C.LUBRICATION_FACTOR_MULTIPLIER or 0)
            wearRate = wearRate + lubricationFactor
        end

        -- service
        expiredServiceFactor = getExpiredServiceFactor(spec.serviceLevel, C.SERVICE_EXPIRED_MULTIPLIER)
        wearRate = wearRate + expiredServiceFactor
    else
        if spec.isUnderRoof then 
            wearRate = wearRate * ADS_Config.CORE.UNDER_ROOF_DOWNTIME_MULTIPLIER 
        else
            wearRate = wearRate * ADS_Config.CORE.DOWNTIME_MULTIPLIER 
        end
    end

    self:updateSystemConditionAndStress(dt, systemKey, wearRate, {
        expiredServiceFactor = expiredServiceFactor,
        wetCropFactor = wetCropFactor,
        lubricationFactor = lubricationFactor
    })
end

-- ==========================================================
--                       BREAKDOWNS
-- ==========================================================

local function buildGeneralWearBreakdown(vehicle)
    local spec = vehicle.spec_AdvancedDamageSystem
    if not spec then
        return
    end

    local generalWearBreakdown = {
        system = 'vehicle',
        isSelectable = false,
        isApplicable = function(vehicle)
            return true
        end,
        probability = function(vehicle)
            return 0.0
        end,
        isCanProgress = function(vehicle)
            return false
        end,
        stages = {
            {
                severity = "ads_breakdowns_severity_permanent",
                description = "ads_breakdowns_general_wear_stage1_description",
                detectionChance = 0.0,
                progressMultiplier = 0.0,
                repairPrice = 0.0,
                effects = {},
                indicators = {}
            }
        }
    }

    local effects = generalWearBreakdown.stages[1].effects
    local systems = AdvancedDamageSystem.SYSTEMS

    for _, systemData in pairs(spec.systems) do
        local systemName = systemData.name
        local systemCondition = vehicle:getSystemConditionLevel(systemName)
        local effect = nil
        local isLateStage = systemCondition <= ADS_Config.CORE.GENERAL_WEAR_LATE_STAGE_THRESHOLD
        
        if systemData.enabled and systemCondition <= ADS_Config.CORE.GENERAL_WEAR_EARLY_STAGE_THRESHOLD  then
            
            --- ENGINE
            if systemName == systems.ENGINE then

                --- early stage
                effect = {
                    id = "ENGINE_TORQUE_MODIFIER",
                    value = function() 
                        local baseEffect = -0.30
                        local condition = systemCondition
                        local multiplier = (1 - condition) ^ 3
                        return baseEffect * multiplier
                    end,
                    aggregation = "sum"
                }
                if effect ~= nil then table.insert(effects, effect) end

            --- TRANSMISSION
            elseif systemName == systems.TRANSMISSION then
                local motor = vehicle:getMotor()
                if not motor then return false end
                
                local isManual = motor.minForwardGearRatio == nil
                local isPowerShift = motor.gearType == VehicleMotor.TRANSMISSION_TYPE.POWERSHIFT
                local isCvt = motor.minForwardGearRatio ~= nil

                --- early stage
                if isManual and hasCVTAddon(vehicle) then
                    effect = {
                        id = "TRANSMISSION_SLIP_EFFECT", 
                        value = function ()
                            local baseEffect = 0.30
                            local condition = systemCondition
                            local multiplier = (1 - condition) ^ 3
                            return baseEffect * multiplier
                        end, 
                        extraData = {accumulatedMod = 0.0}, 
                        aggregation = "max"
                    }
                    if effect ~= nil then table.insert(effects, effect) end

                elseif isPowerShift and hasCVTAddon(vehicle) then
                    effect = { 
                        id = "POWERSHIFT_ENGAGEMENT_LAG_AND_HARSH_EFFECT", 
                        value = function ()
                            local baseEffect = 0.30
                            local condition = systemCondition
                            local multiplier = (1 - condition) ^ 3
                            return baseEffect * multiplier
                        end,
                        extraData = {timer = 0, status = "IDLE", duration = 1000, backup = 0}, 
                        aggregation = "max"
                    }
                    if effect ~= nil then table.insert(effects, effect) end

                elseif isCvt and not hasCVTAddon(vehicle) then
                    effect = { 
                        id = "CVT_MAX_RATIO_MODIFIER", 
                        value = function ()
                            local baseEffect = 0.30
                            local condition = systemCondition
                            local multiplier = (1 - condition) ^ 3
                            return baseEffect * multiplier
                        end,
                        aggregation = "max" 
                    }
                    if effect ~= nil then table.insert(effects, effect) end
                end

            --- HYDRAULIC
            elseif systemName == systems.HYDRAULICS then
                effect = {
                    id = "HYDRAULIC_SPEED_MODIFIER", 
                    value = function ()
                        local baseEffect = -0.30
                        local condition = systemCondition
                        local multiplier = (1 - condition) ^ 3
                        return baseEffect * multiplier
                    end,
                    aggregation = "min"
                }
                if effect ~= nil then table.insert(effects, effect) end
            
            --- FUEL
            elseif systemName == systems.FUEL then

                --- ealry stage
                effect = {
                    id = "FUEL_CONSUMPTION_MODIFIER", 
                    value = function ()
                        local baseEffect = 0.60
                        local condition = systemCondition
                        local multiplier = (1 - condition) ^ 3
                        return baseEffect * multiplier
                    end, 
                    aggregation = "sum" 
                }
                if effect ~= nil then table.insert(effects, effect) end

            --- CHASSIS
            elseif systemName == systems.CHASSIS then
                
                --- early stage
                effect = {
                    id = "BRAKE_FORCE_MODIFIER", 
                    value = function ()
                        local baseEffect = -0.60
                        local condition = systemCondition
                        local multiplier = (1 - condition) ^ 3
                        return baseEffect * multiplier
                    end,  
                    aggregation = "min",  
                    extraData = {timer = 0, soundPlayed = false}
                }
                if effect ~= nil then table.insert(effects, effect) end

                --- late stage
                effect = {
                    id = "STEERING_SENSITIVITY_MODIFIER", 
                    value = function ()
                        local baseEffect = 0.30
                        local condition = systemCondition
                        local multiplier = (1 - condition) ^ 3
                        return baseEffect * multiplier
                    end,   
                    aggregation = "max" 
                }
                if isLateStage and effect ~= nil then table.insert(effects, effect) end

            --- COOLING
            elseif systemName == systems.COOLING then
                
                --- early stage
                effect = {
                    id = "RADIATOR_HEALTH_MODIFIER", 
                    value = function ()
                        local baseEffect = -0.20
                        local condition = systemCondition
                        local multiplier = (1 - condition) ^ 3
                        return baseEffect * multiplier
                    end,  
                    aggregation = "min",  
                }
                if effect ~= nil then table.insert(effects, effect) end

            --- ELECTRICAL
            elseif systemName == systems.ELECTRICAL then

                --- early stage
                effect = {
                    id = "ALTERNATOR_HEALTH_MODIFIER", 
                    value = function ()
                        local baseEffect = -0.60
                        local condition = systemCondition
                        local multiplier = (1 - condition) ^ 3
                        return baseEffect * multiplier
                    end,   
                    aggregation = "min"
                }
                if effect ~= nil then table.insert(effects, effect) end

                effect = {
                    id = "BATTERY_HEALTH_MODIFIER", 
                    value = function ()
                        local baseEffect = -0.60
                        local condition = systemCondition
                        local multiplier = (1 - condition) ^ 3
                        return baseEffect * multiplier
                    end,  
                    aggregation = "min"
                }
                if effect ~= nil then table.insert(effects, effect) end

                --- late stage
                effect = {
                        id = "ENGINE_HARD_START_MODIFIER",
                        value = function ()
                        local baseEffect = 6
                            local condition = systemCondition
                            local multiplier = (1 - condition) ^ 3
                            return math.max(baseEffect * multiplier, 2)
                        end,  
                        aggregation = "max",
                        extraData = {timer = 0, status = 'IDLE'}
                }
                if isLateStage and effect ~= nil and effect.value() >= 2 then table.insert(effects, effect) end

            --- WORKPORCESS
            elseif systemName == systems.WORKPROCESS then

                --- early stage
                effect = {
                    id = "YIELD_REDUCTION_MODIFIER", 
                    value = function ()
                        local baseEffect = -0.20
                        local condition = systemCondition
                        local multiplier = (1 - condition) ^ 3
                        return baseEffect * multiplier
                    end,
                    aggregation = "sum"
                }
                if effect ~= nil then table.insert(effects, effect) end
            end 
        end
    end

    return generalWearBreakdown
end

local function getBreakdownDefinition(vehicle, breakdownId)
    local spec = vehicle.spec_AdvancedDamageSystem
    if spec ~= nil and spec.dynamicBreakdowns ~= nil and spec.dynamicBreakdowns[breakdownId] ~= nil then
        return spec.dynamicBreakdowns[breakdownId]
    end
    return ADS_Breakdowns.BreakdownRegistry[breakdownId]
end

function AdvancedDamageSystem:tryTriggerBreakdown(dt)
    local spec = self.spec_AdvancedDamageSystem
    if not spec or dt == 0 then
        return
    end

    local probabilityData = ADS_Config.CORE.BREAKDOWN_PROBABILITIES
    local conditionEffectiveFloor = ADS_Config.CORE.CONDITION_EFFECTIVE_FLOOR or 0.15

    for systemName, systemData in pairs(spec.systems) do
        if systemData.name == AdvancedDamageSystem.SYSTEMS.TRANSMISSION and hasCVTAddon(self) then
            -- skip transmission breakdowns if CVT addon is present
        else
            local systemCondition = math.max(systemData.condition or 1.0, 0.001)
            local effectiveCondition = math.max(systemCondition, conditionEffectiveFloor)
            local systemStress = math.max(systemData.stress or 0.0, 0.0)
            local stressThreshold = probabilityData.STRESS_THRESHOLD
            local hourlyProb = 0.0

            local stressRatio = math.max(systemStress / effectiveCondition, 0.0)
            if stressRatio >= stressThreshold then
                local failureChancePerFrame = AdvancedDamageSystem.calculateBreakdownProbability(stressRatio, probabilityData, dt)
                hourlyProb = 1 - (1 - failureChancePerFrame) ^ (3600000 / dt)

                local random = math.random()
                if random < failureChancePerFrame or systemStress >= effectiveCondition then
                    local systemKey = ADS_Utils.getSystemKey(AdvancedDamageSystem.SYSTEMS, systemData.name)
                    if systemKey == nil or systemKey == "" then
                        systemKey = string.lower(tostring(systemData.name or ""))
                    end

                    local breakdownId = self:getRandomBreakdownBySystem(systemKey)
                    if breakdownId ~= nil then
                        local registryEntry = ADS_Breakdowns.BreakdownRegistry[breakdownId]
                        if registryEntry ~= nil and registryEntry.stages ~= nil and #registryEntry.stages > 0 then
                            local criticalOutcomeChance = ADS_Utils.getCriticalFailureChance(systemCondition)
                            if math.random() < criticalOutcomeChance then
                                self:addBreakdown(breakdownId, #registryEntry.stages)
                            else
                                local stage = 1
                                if systemCondition <= ADS_Config.CORE.GENERAL_WEAR_LATE_STAGE_THRESHOLD then
                                    stage = 3
                                elseif systemCondition <= ADS_Config.CORE.GENERAL_WEAR_EARLY_STAGE_THRESHOLD then
                                    stage = 2
                                end
                                self:addBreakdown(breakdownId, stage)
                            end
                        end
                    else
                        local activeBreakdowns = self:getActiveBreakdowns()
                        local lowestStage = math.huge
                        local lowerStageBreakdownId = nil
                        local targetStage = nil

                        for activeBreakdownId, breakdownData in pairs(activeBreakdowns) do
                            if type(breakdownData) == "table" and breakdownData.isActive ~= false then
                                local registryEntry = getBreakdownDefinition(self, activeBreakdownId)
                                if registryEntry ~= nil and registryEntry.stages ~= nil and #registryEntry.stages > 0 then
                                    local breakdownSystem = registryEntry.system
                                    if type(breakdownSystem) == "string" and AdvancedDamageSystem.SYSTEMS[breakdownSystem] ~= nil then
                                        breakdownSystem = AdvancedDamageSystem.SYSTEMS[breakdownSystem]
                                    end

                                    local breakdownSystemKey = ADS_Utils.getSystemKey(AdvancedDamageSystem.SYSTEMS, breakdownSystem)
                                    if breakdownSystemKey == nil or breakdownSystemKey == "" then
                                        breakdownSystemKey = string.lower(tostring(breakdownSystem or ""))
                                    end

                                    local currentStage = math.max(math.floor(tonumber(breakdownData.stage) or 1), 1)
                                    local maxStage = #registryEntry.stages

                                    if breakdownSystemKey == systemKey and currentStage < maxStage and currentStage < lowestStage then
                                        lowestStage = currentStage
                                        lowerStageBreakdownId = activeBreakdownId
                                        targetStage = currentStage + 1
                                    end
                                end
                            end
                        end

                        if lowerStageBreakdownId ~= nil and targetStage ~= nil then
                            self:changeBreakdownStage(lowerStageBreakdownId, targetStage)
                            log_dbg(string.format(
                                "Increased stage of existing breakdown [%s] to stage %d for system=%s",
                                tostring(lowerStageBreakdownId),
                                tonumber(targetStage) or 0,
                                tostring(systemKey)
                            ))
                        end
                    end

                    systemData.stress = systemStress * ADS_Config.CORE.STRESS_COOLDOWN
                    systemStress = math.max(systemData.stress or 0.0, 0.0)

                    local cooledStressRatio = math.max(systemStress / effectiveCondition, 0.0)
                    if cooledStressRatio >= stressThreshold then
                        local cooledFailureChancePerFrame = AdvancedDamageSystem.calculateBreakdownProbability(cooledStressRatio, probabilityData, dt)
                        hourlyProb = 1 - (1 - cooledFailureChancePerFrame) ^ (3600000 / dt)
                    else
                        hourlyProb = 0.0
                    end
                end
            end

            if ADS_Config.DEBUG and spec.debugData[systemName] ~= nil then
                local criticalChance = math.clamp((1 - systemCondition) ^ probabilityData.CRITICAL_DEGREE, probabilityData.CRITICAL_MIN, probabilityData.CRITICAL_MAX)
                spec.debugData[systemName].breakdownProbability = hourlyProb
                spec.debugData[systemName].critBreakdownProbability = criticalChance
            end
        end
    end
end

function AdvancedDamageSystem:getRandomBreakdown()
    if not self.spec_AdvancedDamageSystem then
        return nil
    end

    local activeBreakdowns = self:getActiveBreakdowns()
    local applicableBreakdowns = {}
    local totalProbability = 0

    for id, breakdownData in pairs(ADS_Breakdowns.BreakdownRegistry) do
        if not activeBreakdowns[id] and breakdownData.isSelectable then
            local isApplicable = true
            if breakdownData.isApplicable ~= nil then
                isApplicable = breakdownData.isApplicable(self)
            end

            if isApplicable then
                local probability = 1.0 
                if breakdownData.probability ~= nil then
                    probability = breakdownData.probability(self)
                end

                if probability > 0 then
                    table.insert(applicableBreakdowns, {id = id, probability = probability})
                    totalProbability = totalProbability + probability
                end
            end
        end
    end

    if #applicableBreakdowns == 0 or totalProbability <= 0 then
        return nil
    end

    local randomNumber = math.random() * totalProbability

    local cumulativeProbability = 0
    for _, breakdown in ipairs(applicableBreakdowns) do
        cumulativeProbability = cumulativeProbability + breakdown.probability
        if randomNumber <= cumulativeProbability then
            return breakdown.id
        end
    end
    return nil
end

function AdvancedDamageSystem:getRandomBreakdownBySystem(systemName)
    if not self.spec_AdvancedDamageSystem then
        return nil
    end

    local spec = self.spec_AdvancedDamageSystem

    if systemName == nil then
        return nil
    end

    local targetSystem = systemName
    if type(targetSystem) == "string" and AdvancedDamageSystem.SYSTEMS[targetSystem] ~= nil then
        targetSystem = AdvancedDamageSystem.SYSTEMS[targetSystem]
    end

    local targetSystemKey = ADS_Utils.getSystemKey(AdvancedDamageSystem.SYSTEMS, targetSystem)
    if targetSystemKey == nil or targetSystemKey == "" then
        targetSystemKey = string.lower(tostring(targetSystem))
    end
    local targetSystemData = spec.systems[targetSystemKey]
    if type(targetSystemData) ~= "table" then
        return nil
    end

    local activeBreakdowns = self:getActiveBreakdowns()
    local applicableBreakdowns = {}
    local totalProbability = 0

    for id, breakdownData in pairs(ADS_Breakdowns.BreakdownRegistry) do
        local breakdownSystem = breakdownData.system
        if type(breakdownSystem) == "string" and AdvancedDamageSystem.SYSTEMS[breakdownSystem] ~= nil then
            breakdownSystem = AdvancedDamageSystem.SYSTEMS[breakdownSystem]
        end

        local breakdownSystemKey = ADS_Utils.getSystemKey(AdvancedDamageSystem.SYSTEMS, breakdownSystem)
        if breakdownSystemKey == nil or breakdownSystemKey == "" then
            breakdownSystemKey = string.lower(tostring(breakdownSystem or ""))
        end

        if not activeBreakdowns[id] and breakdownData.isSelectable and breakdownSystemKey == targetSystemKey then
            local isApplicable = true
            if breakdownData.isApplicable ~= nil then
                isApplicable = breakdownData.isApplicable(self)
            end

            if isApplicable then
                local probability = 1.0 
                if breakdownData.probability ~= nil then
                    probability = breakdownData.probability(self)
                end

                if probability > 0 then
                    table.insert(applicableBreakdowns, {id = id, probability = probability})
                    totalProbability = totalProbability + probability
                    log_dbg(string.format(
                        "Breakdown candidate [%s] system=%s weight=%.6f",
                        tostring(id),
                        tostring(targetSystemKey),
                        tonumber(probability) or 0
                    ))
                end
            end
        end
    end

    if #applicableBreakdowns == 0 or totalProbability <= 0 then
        log_dbg(string.format(
            "Breakdown selection skipped for system=%s candidates=%d totalWeight=%.6f",
            tostring(targetSystemKey),
            #applicableBreakdowns,
            tonumber(totalProbability) or 0
        ))
        return nil
    end

    local randomNumber = math.random() * totalProbability
    log_dbg(string.format(
        "Breakdown selection random system=%s random=%.6f totalWeight=%.6f",
        tostring(targetSystemKey),
        tonumber(randomNumber) or 0,
        tonumber(totalProbability) or 0
    ))

    local cumulativeProbability = 0
    for _, breakdown in ipairs(applicableBreakdowns) do
        cumulativeProbability = cumulativeProbability + breakdown.probability
        log_dbg(string.format(
            "Breakdown roll [%s] cumulative=%.6f threshold=%.6f",
            tostring(breakdown.id),
            tonumber(cumulativeProbability) or 0,
            tonumber(randomNumber) or 0
        ))
        if randomNumber <= cumulativeProbability then
            log_dbg(string.format(
                "Breakdown selected [%s] system=%s random=%.6f cumulative=%.6f",
                tostring(breakdown.id),
                tostring(targetSystemKey),
                tonumber(randomNumber) or 0,
                tonumber(cumulativeProbability) or 0
            ))
            return breakdown.id
        end
    end

    log_dbg(string.format(
        "Breakdown selection fell through system=%s random=%.6f totalWeight=%.6f",
        tostring(targetSystemKey),
        tonumber(randomNumber) or 0,
        tonumber(totalProbability) or 0
    ))
    return nil
end

function AdvancedDamageSystem:addBreakdown(breakdownId, stageOrOptions)
    local spec = self.spec_AdvancedDamageSystem
    if not spec then return end

    local options
    if type(stageOrOptions) == "table" then
        options = stageOrOptions
    else
        options = {
            stage = stageOrOptions,
            isActive = true,
        }
    end

    local activeBreakdowns = self:getActiveBreakdowns()
    local breakdownRegistry = ADS_Breakdowns ~= nil and ADS_Breakdowns.BreakdownRegistry or nil
    if breakdownRegistry == nil then
        log_dbg("addBreakdown skipped: BreakdownRegistry is nil for id:", tostring(breakdownId))
        return
    end
    
    local activeBreakdownsCount = 0
    for _, breakdownData in pairs(activeBreakdowns) do
        if type(breakdownData) == "table" and breakdownData.isActive ~= false then
            activeBreakdownsCount = activeBreakdownsCount + 1
        end
    end

    local registryEntry = breakdownRegistry[breakdownId]
    if registryEntry == nil then
        log_dbg("addBreakdown skipped: unknown breakdown id:", tostring(breakdownId))
        return
    end

    if activeBreakdownsCount >= ADS_Config.CORE.CONCURRENT_BREAKDOWN_LIMIT_PER_VEHICLE and registryEntry.isSelectable then
        return nil 
    end

    if self:hasBreakdown(breakdownId) then
        return
    end

    local currentIsActive = false
    if options.isActive == nil then
        currentIsActive = true
    else
        currentIsActive = options.isActive
    end

    local resumeTimer = math.max(tonumber(options.resumeTimer) or 0, 0)
    if not currentIsActive and resumeTimer <= 0 then
        local serviceScale = ADS_Config.CORE.DEFAULT_SERVICE_WEAR / ADS_Config.CORE.BASE_SERVICE_WEAR
        resumeTimer = ADS_Config.CORE.REPEAT_BREAKDOWN_TIME * serviceScale * (math.random() + 0.5)
    end

    spec.activeBreakdowns[breakdownId] = {
        stage = math.max(math.floor(tonumber(options.stage) or 1), 1),
        progressTimer = math.max(tonumber(options.progressTimer) or 0, 0),
        isVisible = ADS_Utils.normalizeBoolValue(options.isVisible, false),
        isSelectedForRepair = ADS_Utils.normalizeBoolValue(options.isSelectedForRepair, true),
        isActive = currentIsActive,
        resumeTimer = resumeTimer,
        source = options.source or AdvancedDamageSystem.BREAKDOWN_SOURCES.RANDOM
    }
    
    self:recalculateAndApplyEffects()

    if self.isServer and spec.adsDirtyFlag_breakdowns ~= nil then
        self:raiseDirtyFlags(spec.adsDirtyFlag_breakdowns)
    end
end

function AdvancedDamageSystem:suspendBreakdown(breakdownId, resumeTimer)
    local spec = self.spec_AdvancedDamageSystem
    if not spec or not spec.activeBreakdowns then
        return
    end

    local breakdown = spec.activeBreakdowns[breakdownId]
    if breakdown == nil then
        return
    end

    breakdown.isActive = false
    breakdown.resumeTimer = math.max(tonumber(resumeTimer) or 0, 0)
    breakdown.source = AdvancedDamageSystem.BREAKDOWN_SOURCES.QUICK_FIX

    self:recalculateAndApplyEffects()

    if self.isServer and spec.adsDirtyFlag_breakdowns ~= nil then
        self:raiseDirtyFlags(spec.adsDirtyFlag_breakdowns)
    end
end

function AdvancedDamageSystem:removeBreakdown(...)
    local spec = self.spec_AdvancedDamageSystem
    if not spec or not spec.activeBreakdowns or next(spec.activeBreakdowns) == nil then
        return
    end
    
    local idsToRemove = {...}

    if #idsToRemove == 0 then
        spec.activeBreakdowns = {}
        self:recalculateAndApplyEffects()
        if self.isServer and spec.adsDirtyFlag_breakdowns ~= nil then
            self:raiseDirtyFlags(spec.adsDirtyFlag_breakdowns)
        end
        return
    end

    local removedCount = 0
    for _, id in ipairs(idsToRemove) do
        if spec.activeBreakdowns[id] then
            spec.activeBreakdowns[id] = nil
            removedCount = removedCount + 1
        end
    end
    
    if removedCount > 0 then
        self:recalculateAndApplyEffects()
        if self.isServer and spec.adsDirtyFlag_breakdowns ~= nil then
            self:raiseDirtyFlags(spec.adsDirtyFlag_breakdowns)
        end
    else
    end
end

function AdvancedDamageSystem:hasBreakdown(breakdownId)
    local spec = self.spec_AdvancedDamageSystem
    if not spec or not spec.activeBreakdowns or next(spec.activeBreakdowns) == nil then
        return false
    end

    if breakdownId == nil then
        for activeBreakdownId, _ in pairs(spec.activeBreakdowns) do
            local breakdownDef = ADS_Breakdowns.BreakdownRegistry[activeBreakdownId]
            if breakdownDef ~= nil and breakdownDef.isSelectable == true then
                return true
            end
        end

        return false
    end

    return spec.activeBreakdowns[breakdownId] ~= nil
end

function AdvancedDamageSystem:hasEffect(effectId)
    local spec = self.spec_AdvancedDamageSystem
    if not spec or not spec.activeEffects or next(spec.activeEffects) == nil then
        return false
    end

    if effectId == nil then
        return next(spec.activeEffects) ~= nil
    end

    return spec.activeEffects[effectId] ~= nil
end

function AdvancedDamageSystem:hasSystemBreakdowns(system)
    local spec = self.spec_AdvancedDamageSystem
    if not spec or not spec.activeBreakdowns or next(spec.activeBreakdowns) == nil then
        return false
    end

    local systemKey = ADS_Utils.getSystemKey(AdvancedDamageSystem.SYSTEMS, system)
    if systemKey == nil or systemKey == "" then
        systemKey = type(system) == "string" and string.lower(system) or ""
    end

    if systemKey == "" then
        return false
    end

    for breakdownId, _ in pairs(spec.activeBreakdowns) do
        local registryBreakdown = ADS_Breakdowns.BreakdownRegistry[breakdownId]
        if registryBreakdown ~= nil then
            local breakdownSystemKey = ADS_Utils.getSystemKey(AdvancedDamageSystem.SYSTEMS, registryBreakdown.system)
            if breakdownSystemKey == systemKey then
                return true
            end
        end
    end

    return false
end

function AdvancedDamageSystem:changeBreakdownStage(breakdownId, targetStageOrReverse)
    local spec = self.spec_AdvancedDamageSystem
    if not spec or not spec.activeBreakdowns or next(spec.activeBreakdowns) == nil or spec.activeBreakdowns[breakdownId] == nil then
        return
    end
    
    local registryBreakdown = ADS_Breakdowns.BreakdownRegistry[breakdownId]
    local breakdown = spec.activeBreakdowns[breakdownId]
    if registryBreakdown == nil or registryBreakdown.stages == nil or #registryBreakdown.stages == 0 then
        return
    end

    local currentStage = math.max(math.floor(tonumber(breakdown.stage) or 1), 1)
    local targetStage = currentStage + 1

    if type(targetStageOrReverse) == "boolean" then
        if targetStageOrReverse then
            targetStage = currentStage - 1
        end
    elseif type(targetStageOrReverse) == "number" then
        targetStage = math.floor(targetStageOrReverse)
    end

    targetStage = math.min(math.max(targetStage, 1), #registryBreakdown.stages)

    if targetStage ~= currentStage then
        breakdown.stage = targetStage
        self:recalculateAndApplyEffects()

        -- Sync breakdown stage change
        if self.isServer and spec.adsDirtyFlag_breakdowns ~= nil then
            self:raiseDirtyFlags(spec.adsDirtyFlag_breakdowns)
        end
    end
end

function AdvancedDamageSystem:processBreakdowns(dt)
    local spec = self.spec_AdvancedDamageSystem
    if not spec or not spec.activeBreakdowns or next(spec.activeBreakdowns) == nil then
        return
    end

    local C = ADS_Config.CORE
    local effectsNeedRecalculation = false

    for id, breakdown in pairs(self:getActiveBreakdowns()) do
        local registryEntry = ADS_Breakdowns.BreakdownRegistry[id]

        if registryEntry then
            breakdown.isActive = breakdown.isActive ~= false
            breakdown.resumeTimer = math.max(tonumber(breakdown.resumeTimer) or 0, 0)

            if not breakdown.isActive then
                if breakdown.resumeTimer > 0 then
                    breakdown.resumeTimer = math.max(breakdown.resumeTimer - dt, 0)
                end

                if breakdown.resumeTimer <= 0 then
                    breakdown.resumeTimer = 0
                    breakdown.isActive = true
                    effectsNeedRecalculation = true
                end
            elseif registryEntry.stages[breakdown.stage] then
                local stageData = registryEntry.stages[breakdown.stage]
                
                if stageData.progressMultiplier and stageData.progressMultiplier > 0 then
                    
                    local canProgress = true
                    if registryEntry.isCanProgress ~= nil then
                        canProgress = registryEntry.isCanProgress(self)
                    end

                    if canProgress then
                        breakdown.progressTimer = breakdown.progressTimer or 0
                        breakdown.progressTimer = breakdown.progressTimer + dt
                        
                        local serviceScale = C.DEFAULT_SERVICE_WEAR / C.BASE_SERVICE_WEAR
                        local stageDuration = C.BASE_BREAKDOWN_PROGRESS_TIME * stageData.progressMultiplier * serviceScale

                        if breakdown.progressTimer >= stageDuration then
                            local maxStages = #registryEntry.stages
                            
                            if breakdown.stage < maxStages then
                                breakdown.stage = breakdown.stage + 1
                                breakdown.progressTimer = 0
                                effectsNeedRecalculation = true

                                if breakdown.stage == maxStages and registryEntry.stages[breakdown.stage].detectionChance > 0 then
                                    breakdown.isVisible = true
                                end
                            end
                        end
                    end
                end
            end
        end
    end

    if effectsNeedRecalculation then
        self:recalculateAndApplyEffects()

        -- Sync breakdown stage progression
        if self.isServer and spec.adsDirtyFlag_breakdowns ~= nil then
            self:raiseDirtyFlags(spec.adsDirtyFlag_breakdowns)
        end
    end
end

function AdvancedDamageSystem:processGeneralWearBreakdown()
    local spec = self.spec_AdvancedDamageSystem
    if not spec or not self.isServer then
        return
    end

    local generalWearId = "GENERAL_WEAR"

    if not ADS_Config.CORE.GENERAL_WEAR_ENABLED then
        if self:hasBreakdown(generalWearId) then
            self:removeBreakdown(generalWearId)
        end
        return
    end

    local isGeneralWearShouldBe = false
    local needToRecalculate = math.abs(self:getConditionLevel() - spec._prevConditionLevel) > ADS_Config.CORE.BASE_SYSTEMS_WEAR / 5
    
    for _, systemData in pairs(spec.systems) do
        if systemData.enabled and systemData.condition <= ADS_Config.CORE.GENERAL_WEAR_EARLY_STAGE_THRESHOLD  then
            isGeneralWearShouldBe = true
        end
    end
    if isGeneralWearShouldBe and not self:hasBreakdown(generalWearId) then
        self:addBreakdown(generalWearId)
        spec._prevConditionLevel = self:getConditionLevel()
        return
    elseif not isGeneralWearShouldBe and self:hasBreakdown(generalWearId) then
        self:removeBreakdown(generalWearId)
        spec._prevConditionLevel = self:getConditionLevel()
        return
    end

    if needToRecalculate and isGeneralWearShouldBe then
        if self.isServer and spec.adsDirtyFlag_breakdowns ~= nil then
            self:raiseDirtyFlags(spec.adsDirtyFlag_breakdowns)
        end
        self:recalculateAndApplyEffects()
        spec._prevConditionLevel = self:getConditionLevel()
    end
end

function AdvancedDamageSystem:recalculateAndApplyEffects()
    local spec = self.spec_AdvancedDamageSystem
    if not spec then return end

    if spec.isExcludedVehicle then
        spec.dynamicBreakdowns.GENERAL_WEAR = nil
        local previouslyActiveEffects = spec.activeEffects or {}
        spec.activeEffects = {}

        for effectId, applicator in pairs(ADS_Breakdowns.EffectApplicators) do
            if previouslyActiveEffects[effectId] ~= nil and applicator.remove then
                applicator.remove(self, applicator)
            end
        end

        self:recalculateAndApplyIndicators()
        return
    end

    if self:hasBreakdown("GENERAL_WEAR") then
        spec.dynamicBreakdowns.GENERAL_WEAR = buildGeneralWearBreakdown(self)
    else
        spec.dynamicBreakdowns.GENERAL_WEAR = nil
    end

    local previouslyActiveEffects = spec.activeEffects or {}
    local aggregatedEffects = {}
    local unknownBreakdownIds = {}

    for id, breakdown in pairs(self:getActiveBreakdowns()) do
        local registryEntry = getBreakdownDefinition(self, id)

        if registryEntry == nil then
            table.insert(unknownBreakdownIds, id)
        elseif breakdown.isActive ~= false and registryEntry.stages[breakdown.stage] then
            local stageData = registryEntry.stages[breakdown.stage]

            if stageData.effects then
                for _, effectData in ipairs(stageData.effects) do
                    local effectId = effectData.id
                    local strategy = effectData.aggregation or "sum"

                    local newValue
                    if type(effectData.value) == 'function' then
                        newValue = effectData.value(self)
                    else
                        newValue = effectData.value
                    end

                    local existingEffect = aggregatedEffects[effectId]

                    if existingEffect == nil then
                        local newEffect = ADS_Utils.deepCopy(effectData)
                        newEffect.value = newValue
                        aggregatedEffects[effectId] = newEffect
                    else
                        if strategy == "sum" then
                            if math.abs(newValue) > math.abs(existingEffect.value) then
                                existingEffect.extraData = ADS_Utils.deepCopy(effectData.extraData)
                            end
                            existingEffect.value = existingEffect.value + newValue

                        elseif strategy == "multiply" then
                            if math.abs(newValue - 1) > math.abs(existingEffect.value - 1) then
                                existingEffect.extraData = ADS_Utils.deepCopy(effectData.extraData)
                            end
                            existingEffect.value = existingEffect.value * newValue

                        elseif strategy == "min" then
                            if newValue < existingEffect.value then
                                existingEffect.value = newValue
                                existingEffect.extraData = ADS_Utils.deepCopy(effectData.extraData)
                            end

                        elseif strategy == "max" then
                            if newValue > existingEffect.value then
                                existingEffect.value = newValue
                                existingEffect.extraData = ADS_Utils.deepCopy(effectData.extraData)
                            end

                        elseif strategy == "boolean_or" then
                            local wasActive = existingEffect.value ~= nil and existingEffect.value ~= false and existingEffect.value ~= 0
                            local isActive = newValue ~= nil and newValue ~= false and newValue ~= 0
                            existingEffect.value = existingEffect.value or newValue

                            if isActive then
                                if effectId == "ENGINE_FAILURE" then
                                    local newExtraData = ADS_Utils.deepCopy(effectData.extraData)

                                    if existingEffect.extraData == nil then
                                        existingEffect.extraData = newExtraData
                                    elseif newExtraData ~= nil then
                                        local existingStarter = existingEffect.extraData.starter == true
                                        local newStarter = newExtraData.starter == true

                                        if existingStarter and not newStarter then
                                            -- Non-starter failures should win over starter-driven causes.
                                            existingEffect.extraData = newExtraData
                                        else
                                            existingEffect.extraData.starter = existingStarter or newStarter

                                            if existingEffect.extraData.message == nil and newExtraData.message ~= nil then
                                                existingEffect.extraData.message = newExtraData.message
                                            end
                                            if existingEffect.extraData.reason == nil and newExtraData.reason ~= nil then
                                                existingEffect.extraData.reason = newExtraData.reason
                                            end
                                            if newExtraData.disableAi == true then
                                                existingEffect.extraData.disableAi = true
                                            end
                                        end
                                    end
                                elseif isActive and not wasActive then
                                    existingEffect.extraData = ADS_Utils.deepCopy(effectData.extraData)
                                end
                            end
                        end
                    end
                end
            end
        end
    end

    -- Remove unknown breakdowns safely after iteration completes
    if #unknownBreakdownIds > 0 then
        for _, unknownId in ipairs(unknownBreakdownIds) do
            spec.activeBreakdowns[unknownId] = nil
        end
        if self.isServer and spec.adsDirtyFlag_breakdowns ~= nil then
            self:raiseDirtyFlags(spec.adsDirtyFlag_breakdowns)
        end
    end

    spec.activeEffects = aggregatedEffects

    for effectId, applicator in pairs(ADS_Breakdowns.EffectApplicators) do
        local isCurrentlyActive = spec.activeEffects[effectId] ~= nil
        local wasPreviouslyActive = previouslyActiveEffects[effectId] ~= nil

        if isCurrentlyActive then
            if applicator.apply then
                applicator.apply(self, spec.activeEffects[effectId], applicator)
            end

            if self.isClient and not wasPreviouslyActive then
                local currentEffect = spec.activeEffects[effectId]
                local rootVehicle = self.rootVehicle or self
                local hasEnteredPlayer = hasEnteredPlayerInVehicleChain(rootVehicle)

                if currentEffect ~= nil
                        and currentEffect.extraData ~= nil
                        and currentEffect.extraData.message ~= nil
                        and not hasEnteredPlayer then
                    spec.pendingSideNotifications = spec.pendingSideNotifications or {}
                    table.insert(spec.pendingSideNotifications, g_i18n:getText(currentEffect.extraData.message))
                end
            end
        elseif wasPreviouslyActive then
            if applicator.remove then
                applicator.remove(self, applicator)
            end
        end
    end
    
    self:recalculateAndApplyIndicators()
end

function AdvancedDamageSystem:recalculateAndApplyIndicators()
    local spec = self.spec_AdvancedDamageSystem
    if not spec then return end

    spec.activeIndicators = {} 
    if spec.isExcludedVehicle then return end

    local aggregatedIndicatorData = {} 

    for id, breakdown in pairs(self:getActiveBreakdowns()) do
        local registryEntry = ADS_Breakdowns.BreakdownRegistry[id]
        if registryEntry and registryEntry.stages[breakdown.stage] then
            local stageData = registryEntry.stages[breakdown.stage]

            if stageData.indicators then
                for _, indicatorDef in ipairs(stageData.indicators) do
                    local id = indicatorDef.id
                    
                    if aggregatedIndicatorData[id] == nil then
                        aggregatedIndicatorData[id] = {
                            color = indicatorDef.color,
                            switchOnConditions = {},
                            switchOffConditions = {}
                        }
                    end

                    local currentData = aggregatedIndicatorData[id]

                    local newPriority = ADS_Breakdowns.COLOR_PRIORITY[indicatorDef.color] or 0
                    local existingPriority = ADS_Breakdowns.COLOR_PRIORITY[currentData.color] or 0
                    
                    if newPriority > existingPriority then
                        currentData.color = indicatorDef.color
                    end

                    if indicatorDef.switchOn then
                        table.insert(currentData.switchOnConditions, indicatorDef.switchOn)
                    end
                    if indicatorDef.switchOff then
                        table.insert(currentData.switchOffConditions, indicatorDef.switchOff)
                    end
                end
            end
        end
    end

    for id, data in pairs(aggregatedIndicatorData) do
        local finalIndicator = {
            color = data.color,
            isActive = false,
        }

        finalIndicator.switchOn = function(vehicle)
            for _, condition in ipairs(data.switchOnConditions) do
                local result = false
                if type(condition) == 'function' then
                    result = condition(vehicle)
                elseif type(condition) == 'boolean' then
                    result = condition
                end
                
                if result then
                    return true
                end
            end
            return false
        end

        finalIndicator.switchOff = function(vehicle)
            for _, condition in ipairs(data.switchOffConditions) do
                local result = false
                if type(condition) == 'function' then
                    result = condition(vehicle)
                elseif type(condition) == 'boolean' then
                    result = condition
                end
                
                if result then
                    return true
                end
            end
            return false
        end

        spec.activeIndicators[id] = finalIndicator
    end
end

-- ==========================================================
--                       MAINTENANCE    
-- ==========================================================

local function isBreakdownSelectedForPlayerRepair(breakdownId, breakdown, optionOne)
    local breakdownDef = ADS_Breakdowns.BreakdownRegistry[breakdownId]
    if breakdownDef == nil or breakdownDef.isSelectable ~= true then
        return false
    end

    local isSelectedForQuickFix = breakdown.isSelectedForRepair and breakdown.isVisible and (optionOne == AdvancedDamageSystem.REPAIR_TYPES.LOW and breakdown.isActive)
    local isSelectedForStandartRepair = breakdown.isSelectedForRepair and breakdown.isVisible and (optionOne == AdvancedDamageSystem.REPAIR_TYPES.MEDIUM or optionOne == AdvancedDamageSystem.REPAIR_TYPES.HIGH)
    return isSelectedForStandartRepair or isSelectedForQuickFix
end

local function getIsSelectableBreakdown(breakdownId)
    local breakdownDef = ADS_Breakdowns.BreakdownRegistry[breakdownId]
    if breakdownDef == nil or breakdownDef.isSelectable ~= true then
        return false
    end
    return true
end

local function resetPendingServiceProgress(spec)
    spec.pendingSelectedBreakdowns = {}
    spec.pendingServicePrice = nil
    spec.pendingInspectionQueue = {}
    spec.pendingRepairQueue = {}
    spec.pendingProgressStepIndex = 0
    spec.pendingProgressTotalTime = 0
    spec.pendingProgressElapsedTime = 0
    spec.pendingMaintenanceServiceStart = nil
    spec.pendingMaintenanceServiceTarget = nil
    spec.pendingPreventiveSystemStressStart = {}
    spec.pendingPreventiveSystemStressTarget = {}
    spec.pendingOverhaulSystemStart = {}
    spec.pendingOverhaulSystemTarget = {}
    spec.pendingOverhaulSystemStressStart = {}
    spec.pendingOverhaulSystemStressTarget = {}
    spec.pendingRepairSystemStressStart = {}
    spec.pendingRepairSystemStressTarget = {}
    spec.pendingRepairSystemStressStartRatio = {}
end

local function applyPendingSystemStressInterpolation(spec, startMap, targetMap, ratio)
    if spec == nil or spec.systems == nil then
        return
    end

    if startMap == nil or targetMap == nil then
        return
    end

    for systemKey, startStress in pairs(startMap) do
        local systemData = spec.systems[systemKey]
        local targetStress = targetMap[systemKey]
        if systemData ~= nil and targetStress ~= nil then
            local interpolatedStress = startStress + (targetStress - startStress) * ratio
            systemData.stress = math.max(interpolatedStress, 0)
        end
    end
end

local function applyPendingPreventiveStressInterpolation(spec, ratio)
    applyPendingSystemStressInterpolation(spec, spec.pendingPreventiveSystemStressStart, spec.pendingPreventiveSystemStressTarget, ratio)
end

local function applyPendingOverhaulStressInterpolation(spec, ratio)
    applyPendingSystemStressInterpolation(spec, spec.pendingOverhaulSystemStressStart, spec.pendingOverhaulSystemStressTarget, ratio)
end

local function markRepairStressReduction(spec, systemKey, optionOne)
    if spec == nil or spec.systems == nil or systemKey == nil or systemKey == "" then
        return
    end

    local systemData = spec.systems[systemKey]
    if systemData == nil then
        return
    end

    local optionOneKey = ADS_Utils.getNameByValue(AdvancedDamageSystem.REPAIR_TYPES, optionOne)

    spec.pendingRepairSystemStressStart = spec.pendingRepairSystemStressStart or {}
    spec.pendingRepairSystemStressTarget = spec.pendingRepairSystemStressTarget or {}
    spec.pendingRepairSystemStressStartRatio = spec.pendingRepairSystemStressStartRatio or {}

    if spec.pendingRepairSystemStressTarget[systemKey] == nil then
        spec.pendingRepairSystemStressStart[systemKey] = math.max(tonumber(systemData.stress) or 0, 0)
        spec.pendingRepairSystemStressTarget[systemKey] = math.max(ADS_Config.MAINTENANCE.REPAIR_REMAINING_STRESS_RATIO[optionOneKey] * systemData.stress * (0.9 + math.random() * 0.2), 0)
        local totalTime = math.max(tonumber(spec.pendingProgressTotalTime) or 0, 0.0001)
        spec.pendingRepairSystemStressStartRatio[systemKey] = math.min(math.max((tonumber(spec.pendingProgressElapsedTime) or 0) / totalTime, 0), 1)
    end
end

local function applyPendingRepairStressInterpolation(spec, ratio)
    if spec == nil or spec.systems == nil then
        return
    end

    if spec.pendingRepairSystemStressStart == nil
        or spec.pendingRepairSystemStressTarget == nil
        or spec.pendingRepairSystemStressStartRatio == nil then
        return
    end

    for systemKey, startStress in pairs(spec.pendingRepairSystemStressStart) do
        local systemData = spec.systems[systemKey]
        local targetStress = spec.pendingRepairSystemStressTarget[systemKey]
        local startRatio = tonumber(spec.pendingRepairSystemStressStartRatio[systemKey]) or 0
        if systemData ~= nil and targetStress ~= nil then
            local localRatio = 1
            if startRatio < 1 then
                localRatio = math.min(math.max((ratio - startRatio) / (1 - startRatio), 0), 1)
            end
            local interpolatedStress = startStress + (targetStress - startStress) * localRatio
            systemData.stress = math.max(interpolatedStress, 0)
        end
    end
end

local function collectPreventiveMaintenanceStressTargets(vehicle)
    local spec = vehicle ~= nil and vehicle.spec_AdvancedDamageSystem or nil
    if spec == nil or type(spec.systems) ~= "table" then
        return {}, {}
    end

    local config = ADS_Config.MAINTENANCE or {}
    local systemsCount = math.max(math.floor(tonumber(config.MAINTENANCE_PREVENTIVE_SYSTEMS_COUNT) or 0), 0)
    if systemsCount <= 0 then
        return {}, {}
    end

    local targetMultiplier = math.clamp(tonumber(config.MAINTENANCE_PREVENTIVE_STRESS_REMOVE_MULTIPLIER) or 0, 0, 1)
    local candidates = {}

    for systemKey, systemData in pairs(spec.systems) do
        if type(systemData) == "table" and systemData.enabled ~= false then
            local condition = math.clamp(tonumber(systemData.condition) or spec.conditionLevel or 1.0, 0.001, 1.0)
            local currentStress = math.max(tonumber(systemData.stress) or 0, 0)
            local targetStress = math.min(currentStress, condition * targetMultiplier)
            local removableStress = currentStress - targetStress
            if removableStress > 0.0001 then
                table.insert(candidates, {
                    systemKey = systemKey,
                    startStress = currentStress,
                    targetStress = targetStress,
                    mtbf = ADS_Utils.getEstimatedMTBF(condition, currentStress),
                    removableStress = removableStress
                })
            end
        end
    end

    table.sort(candidates, function(a, b)
        if a.mtbf ~= b.mtbf then
            return a.mtbf < b.mtbf
        end
        if a.removableStress ~= b.removableStress then
            return a.removableStress > b.removableStress
        end
        return tostring(a.systemKey) < tostring(b.systemKey)
    end)

    local startMap = {}
    local targetMap = {}
    local selectedCount = math.min(systemsCount, #candidates)
    for i = 1, selectedCount do
        local candidate = candidates[i]
        startMap[candidate.systemKey] = candidate.startStress
        targetMap[candidate.systemKey] = candidate.targetStress
    end

    return startMap, targetMap
end

function AdvancedDamageSystem:initService(type, workshopType, optionOne, optionTwo, optionThree)
    local spec = self.spec_AdvancedDamageSystem
    local states = AdvancedDamageSystem.STATUS
    local vehicleState = self:getCurrentStatus()
    local C = ADS_Config.MAINTENANCE
    local selectedBreakdowns = {}
    local totalTimeMs = 0
    local repairPrice = nil

    if vehicleState ~= states.READY or (spec.maintenanceTimer or 0) ~= 0 then
        return
    end

    if ADS_Main ~= nil
        and ADS_Main.isWorkshopTypeOpen ~= nil
        and not ADS_Main:isWorkshopTypeOpen(workshopType) then
        return
    end

    if self.spec_enterable ~= nil and self.spec_enterable.setIsTabbable ~= nil and C.PARK_VEHICLE then
        self.spec_enterable:setIsTabbable(false)
    end

    if type == states.OVERHAUL
        and optionOne == AdvancedDamageSystem.OVERHAUL_TYPES.PARTIAL
        and ADS_Utils.getEffectiveSystemWeight(self, optionTwo, AdvancedDamageSystem.SYSTEMS) <= 0 then
        log_dbg(string.format("Skipping partial overhaul for %s: invalid or disabled target system '%s'", self:getFullName(), tostring(optionTwo)))
        return
    end

    if self:getIsOperating() then
        self:stopMotor()
    end

    spec.currentState = type
    spec.plannedState = states.READY
    spec.workshopType = workshopType
    spec.serviceOptionOne = optionOne
    spec.serviceOptionTwo = optionTwo
    spec.serviceOptionThree = optionThree
    resetPendingServiceProgress(spec)

    -- INSPECTION
    if type == states.INSPECTION or type == states.MAINTENANCE then
        if type == states.INSPECTION then
            if C.INSTANT_INSPECTION and optionOne == AdvancedDamageSystem.INSPECTION_TYPES.VISUAL then
                optionOne = AdvancedDamageSystem.INSPECTION_TYPES.STANDARD
                spec.serviceOptionOne = optionOne
            end

            local key = ADS_Utils.getNameByValue(AdvancedDamageSystem.INSPECTION_TYPES, optionOne)
            if C.INSTANT_INSPECTION then
                totalTimeMs = 1000
            else
                totalTimeMs = C.INSPECTION_TIME * C.GLOBAL_SERVICE_TIME_MULTIPLIER * C.INSPECTION_TIME_MULTIPLIERS[key]
            end
        end

        for id, breakdown in pairs(self:getActiveBreakdowns()) do
            if breakdown ~= nil and not breakdown.isVisible then
                table.insert(spec.pendingInspectionQueue, id)
            end
        end
    end

    -- MAINTENANCE
    if type == states.MAINTENANCE then
        local key = ADS_Utils.getNameByValue(AdvancedDamageSystem.MAINTENANCE_TYPES, optionOne)
        totalTimeMs = C.MAINTENANCE_TIME * C.GLOBAL_SERVICE_TIME_MULTIPLIER * C.MAINTENANCE_TIME_MULTIPLIERS[key]
        spec.pendingMaintenanceServiceStart = spec.serviceLevel
        spec.pendingMaintenanceServiceTarget = math.max(spec.pendingMaintenanceServiceStart, C.MAINTENANCE_SERVICE_RESTORE_MULTIPLIERS[key])
        spec.pendingPreventiveSystemStressStart = {}
        spec.pendingPreventiveSystemStressTarget = {}

        if key == "PREVENTIVE" then
            spec.pendingPreventiveSystemStressStart, spec.pendingPreventiveSystemStressTarget = collectPreventiveMaintenanceStressTargets(self)
        end

        if self:hasBreakdown("MAINTENANCE_WITH_POOR_QUALITY_CONSUMABLES") then
            self:removeBreakdown("MAINTENANCE_WITH_POOR_QUALITY_CONSUMABLES")
        end

    -- REPAIR
    elseif type == states.REPAIR then
        local key = ADS_Utils.getNameByValue(AdvancedDamageSystem.REPAIR_TYPES, optionOne)
        local idsToRepair = {}
        for id, breakdown in pairs(self:getActiveBreakdowns()) do
            if isBreakdownSelectedForPlayerRepair(id, breakdown, optionOne) then
                table.insert(idsToRepair, id)
            end
        end

        selectedBreakdowns = idsToRepair
        spec.pendingRepairQueue = ADS_Utils.shallowCopy(idsToRepair)
        totalTimeMs = C.REPAIR_TIME * C.GLOBAL_SERVICE_TIME_MULTIPLIER * C.REPAIR_TIME_MULTIPLIERS[key] * #idsToRepair
        repairPrice = self:getServicePrice(type, optionOne, optionTwo, optionThree)

    -- OVERHAUL
    elseif type == states.OVERHAUL then
        local key = ADS_Utils.getNameByValue(AdvancedDamageSystem.OVERHAUL_TYPES, optionOne)
        totalTimeMs = C.OVERHAUL_TIME * C.GLOBAL_SERVICE_TIME_MULTIPLIER * C.OVERHAUL_TIME_MULTIPLIERS[key]
        local targetOverhaulSystemKey = nil
        if optionOne == AdvancedDamageSystem.OVERHAUL_TYPES.PARTIAL then 
            local systemWeight = ADS_Utils.getEffectiveSystemWeight(self, optionTwo, AdvancedDamageSystem.SYSTEMS)
            totalTimeMs = totalTimeMs * systemWeight
            targetOverhaulSystemKey = ADS_Utils.getSystemKey(AdvancedDamageSystem.SYSTEMS, optionTwo)
            if (targetOverhaulSystemKey == nil or targetOverhaulSystemKey == "") and type(optionTwo) == "string" then
                targetOverhaulSystemKey = string.lower(optionTwo)
            end
        end

        if next(spec.activeBreakdowns) ~= nil then
            local idsToRepair = {}
            for id, _ in pairs(spec.activeBreakdowns) do
                if ADS_Breakdowns.BreakdownRegistry[id] and ADS_Breakdowns.BreakdownRegistry[id].isSelectable then
                    local breakdownSystemKey = ADS_Utils.getSystemKey(AdvancedDamageSystem.SYSTEMS, ADS_Breakdowns.BreakdownRegistry[id].system)
                    if optionOne ~= AdvancedDamageSystem.OVERHAUL_TYPES.PARTIAL or targetOverhaulSystemKey == breakdownSystemKey then
                        table.insert(idsToRepair, id)
                    end
                end
            end
            selectedBreakdowns = idsToRepair
        end

        local overhaulPerformedCount = self:getOverhaulPerformedCount()
        local minRestore = C.OVERHAUL_MIN_CONDITION_RESTORE_MULTIPLIERS[key] - C.OVERHAUL_MIN_CONDITION_RESTORE_MULTIPLIERS[key] * C.RE_OVERHAUL_FACTOR * overhaulPerformedCount
        local maxRestore = C.OVERHAUL_MAX_CONDITION_RESTORE_MULTIPLIERS[key] - C.OVERHAUL_MAX_CONDITION_RESTORE_MULTIPLIERS[key] * C.RE_OVERHAUL_FACTOR * overhaulPerformedCount
        spec.pendingOverhaulSystemStart = {}
        spec.pendingOverhaulSystemTarget = {}
        spec.pendingOverhaulSystemStressStart = {}
        spec.pendingOverhaulSystemStressTarget = {}

        for systemKey, systemData in pairs(spec.systems) do
            if optionOne ~= AdvancedDamageSystem.OVERHAUL_TYPES.PARTIAL or systemKey == targetOverhaulSystemKey or optionTwo == systemData.name then
                local startCondition = math.clamp(tonumber(systemData.condition) or spec.conditionLevel or 1.0, 0.001, 1.0)
                local startStress = math.max(tonumber(systemData.stress) or 0, 0)
                local restoreAmount = math.min((minRestore + math.random() * (maxRestore - minRestore)) * spec.maintainability, spec.baseConditionLevel)
                local desiredSystemTarget = math.max(restoreAmount, C.OVERHAUL_MIN_CONDITION_RESTORE_MULTIPLIERS[key])
                local targetCondition = math.max(startCondition, desiredSystemTarget)
                spec.pendingOverhaulSystemStart[systemKey] = startCondition
                spec.pendingOverhaulSystemTarget[systemKey] = targetCondition
                spec.pendingOverhaulSystemStressStart[systemKey] = startStress
                spec.pendingOverhaulSystemStressTarget[systemKey] = 0
            end
        end

        if optionOne == AdvancedDamageSystem.OVERHAUL_TYPES.PARTIAL and next(spec.pendingOverhaulSystemTarget) == nil then
            log_dbg(string.format("Skipping partial overhaul for %s: no valid system targets resolved for '%s'", self:getFullName(), tostring(optionTwo)))
            spec.currentState = states.READY
            spec.plannedState = states.READY
            spec.workshopType = workshopType
            spec.serviceOptionOne = nil
            spec.serviceOptionTwo = nil
            spec.serviceOptionThree = false
            resetPendingServiceProgress(spec)
            if self.spec_enterable ~= nil and self.spec_enterable.setIsTabbable ~= nil and C.PARK_VEHICLE then
                self.spec_enterable:setIsTabbable(true)
            end
            return
        end

        self:updateConditionLevel()
    end

    spec.pendingSelectedBreakdowns = {}

    spec.pendingServicePrice = repairPrice

    if totalTimeMs > 0 then
        local adjustedTotalTimeMs = totalTimeMs / spec.maintainability
        spec.maintenanceTimer = adjustedTotalTimeMs
        spec.pendingProgressTotalTime = adjustedTotalTimeMs
        spec.pendingProgressElapsedTime = 0
        spec.pendingProgressStepIndex = 0
        log_dbg(string.format('%s initiated for %s, will take %.2f seconds (%.2f seconds after reliability adjustment). Next planned state: %s', spec.currentState, self:getFullName(), totalTimeMs / 1000, spec.maintenanceTimer / 1000, spec.plannedState))
    else
        spec.currentState = states.READY
        resetPendingServiceProgress(spec)
    end

    if self.isServer and spec.adsDirtyFlag_state ~= nil then
        self:raiseDirtyFlags(spec.adsDirtyFlag_state)
        self:raiseDirtyFlags(spec.adsDirtyFlag_serviceProgress)
        self:raiseDirtyFlags(spec.adsDirtyFlag_serviceContext)
    end
end

function AdvancedDamageSystem:processService(dt)
    local spec = self.spec_AdvancedDamageSystem
    local states = AdvancedDamageSystem.STATUS
    local vehicleState = self:getCurrentStatus()
    local C = ADS_Config.MAINTENANCE

    if vehicleState == states.READY
        or (ADS_Main ~= nil
            and ADS_Main.isWorkshopTypeOpen ~= nil
            and not ADS_Main:isWorkshopTypeOpen(spec.workshopType)) then
        return
    end

    -- timer progress
    local timeScale = getSafeMissionTimeScale()
    local prevTimer = spec.maintenanceTimer or 0
    spec.maintenanceTimer = (spec.maintenanceTimer or 0) - dt * timeScale
    local progressed = math.max(prevTimer - math.max(spec.maintenanceTimer, 0), 0)

    if spec.pendingProgressTotalTime > 0 then
        spec.pendingProgressElapsedTime = math.min((spec.pendingProgressElapsedTime or 0) + progressed, spec.pendingProgressTotalTime)
    end

    local serviceType = spec.currentState
    local optionOne = spec.serviceOptionOne
    local optionTwo = spec.serviceOptionTwo
    local optionTwoKey = ADS_Utils.getNameByValue(AdvancedDamageSystem.PART_TYPES, optionTwo) or AdvancedDamageSystem.PART_TYPES.OEM

    -- inspection effect
    if serviceType == states.INSPECTION or serviceType == states.MAINTENANCE then
        local steps = #spec.pendingInspectionQueue
        local breakdownsRevealed = false
        if steps > 0 and spec.pendingProgressTotalTime > 0 then
            local targetStep = math.min(steps, math.floor((spec.pendingProgressElapsedTime / spec.pendingProgressTotalTime) * steps))
            while spec.pendingProgressStepIndex < targetStep do
                spec.pendingProgressStepIndex = spec.pendingProgressStepIndex + 1
                local breakdownId = spec.pendingInspectionQueue[spec.pendingProgressStepIndex]
                local breakdown = self:getActiveBreakdowns()[breakdownId]
                if breakdown ~= nil and not breakdown.isVisible then
                    local breakdownDef = ADS_Breakdowns.BreakdownRegistry[breakdownId]
                    if breakdownDef ~= nil and breakdownDef.stages ~= nil and breakdownDef.stages[breakdown.stage] ~= nil then
                        local inspectionDetectionMul = 1.0
                        if serviceType == states.INSPECTION then
                            local optionOneKey = ADS_Utils.getNameByValue(AdvancedDamageSystem.INSPECTION_TYPES, optionOne)
                            inspectionDetectionMul = C.INSPECTION_DETECTION_CHANCE_MULTIPLIERS[optionOneKey] or 1.0
                        end
                        local chance = (breakdownDef.stages[breakdown.stage].detectionChance * inspectionDetectionMul) or 0
                        if math.random() < chance then
                            if breakdown.isActive or optionOne == AdvancedDamageSystem.INSPECTION_TYPES.COMPLETE then
                                breakdown.isVisible = true
                                breakdownsRevealed = true
                                table.insert(spec.pendingSelectedBreakdowns, breakdownId)
                            end
                        end
                    end
                end
            end
        end
        -- Sync newly-revealed breakdowns
        if breakdownsRevealed and self.isServer and spec.adsDirtyFlag_breakdowns ~= nil then
            self:raiseDirtyFlags(spec.adsDirtyFlag_breakdowns)
        end

    -- repair effect
    elseif serviceType == states.REPAIR then
        local steps = #spec.pendingRepairQueue
        if steps > 0 and spec.pendingProgressTotalTime > 0 then
            local targetStep = math.min(steps, math.floor((spec.pendingProgressElapsedTime / spec.pendingProgressTotalTime) * steps))
            while spec.pendingProgressStepIndex < targetStep do
                spec.pendingProgressStepIndex = spec.pendingProgressStepIndex + 1
                local breakdownId = spec.pendingRepairQueue[spec.pendingProgressStepIndex]
                if breakdownId ~= nil and self:getActiveBreakdowns()[breakdownId] ~= nil then
                    table.insert(spec.pendingSelectedBreakdowns, breakdownId)

                    local breakdownDef = ADS_Breakdowns.BreakdownRegistry[breakdownId]
                    local systemName = breakdownDef ~= nil and breakdownDef.system or nil
                    local systemKey = ADS_Utils.getSystemKey(AdvancedDamageSystem.SYSTEMS, systemName)
                    local systemData = (systemKey ~= nil and systemKey ~= "" and spec.systems ~= nil) and spec.systems[systemKey] or nil
        
                    if optionOne == AdvancedDamageSystem.REPAIR_TYPES.LOW then
                        local random = math.random()
                        local serviceScale = ADS_Config.CORE.DEFAULT_SERVICE_WEAR / ADS_Config.CORE.BASE_SERVICE_WEAR
                        self:suspendBreakdown(breakdownId, ADS_Config.CORE.REPEAT_BREAKDOWN_TIME * serviceScale* (random + 0.5))
                    else
                        local stage = self:getActiveBreakdowns()[breakdownId].stage
                        self:removeBreakdown(breakdownId)
                        if systemData ~= nil then
                            markRepairStressReduction(spec, systemKey, optionOne)
                        else
                            log_dbg(string.format("Repair effect skipped: missing system mapping for breakdown '%s' (system='%s')", tostring(breakdownId), tostring(systemName)))
                        end
                        --- roll for defected parts
                        if optionTwo ~= AdvancedDamageSystem.PART_TYPES.PREMIUM then
                            local defectChance = C.PARTS_BREAKDOWN_CHANCES[optionTwoKey]
                            if math.random() < defectChance then
                                local serviceScale = ADS_Config.CORE.DEFAULT_SERVICE_WEAR / ADS_Config.CORE.BASE_SERVICE_WEAR
                                self:addBreakdown(breakdownId, {
                                    stage = stage,
                                    isVisible = false,
                                    isSelectedForRepair = true,
                                    isActive = false,
                                    resumeTimer =  ADS_Config.CORE.REPEAT_BREAKDOWN_TIME * serviceScale * (math.random() + 0.5),
                                    progressTimer = 0,
                                    source = AdvancedDamageSystem.BREAKDOWN_SOURCES.POOR_PARTS
                                })
                            end
                        end
                    end
                    
                end
            end
        end

        if spec.pendingProgressTotalTime > 0 then
            local ratio = math.min(math.max(spec.pendingProgressElapsedTime / spec.pendingProgressTotalTime, 0), 1)
            applyPendingRepairStressInterpolation(spec, ratio)
        end
        self:updateConditionLevel()
    end

    if serviceType == states.MAINTENANCE and spec.pendingMaintenanceServiceStart ~= nil and spec.pendingMaintenanceServiceTarget ~= nil and spec.pendingProgressTotalTime > 0 then
        local ratio = math.min(math.max(spec.pendingProgressElapsedTime / spec.pendingProgressTotalTime, 0), 1)
        local interpolatedService = spec.pendingMaintenanceServiceStart + (spec.pendingMaintenanceServiceTarget - spec.pendingMaintenanceServiceStart) * ratio
        spec.serviceLevel = math.max(spec.pendingMaintenanceServiceStart, interpolatedService)
        applyPendingPreventiveStressInterpolation(spec, ratio)
    
    --- overhaul
    elseif serviceType == states.OVERHAUL and spec.pendingProgressTotalTime > 0 then
        local ratio = math.min(math.max(spec.pendingProgressElapsedTime / spec.pendingProgressTotalTime, 0), 1)
        local hasPerSystemTargets = spec.pendingOverhaulSystemStart ~= nil and next(spec.pendingOverhaulSystemStart) ~= nil and spec.pendingOverhaulSystemTarget ~= nil and next(spec.pendingOverhaulSystemTarget) ~= nil
        if hasPerSystemTargets then
            for systemKey, startCondition in pairs(spec.pendingOverhaulSystemStart) do
                local systemData = spec.systems[systemKey]
                local targetCondition = spec.pendingOverhaulSystemTarget[systemKey]
                if systemData ~= nil and targetCondition ~= nil then
                    local interpolatedCondition = startCondition + (targetCondition - startCondition) * ratio
                    systemData.condition = math.max(startCondition, interpolatedCondition)
                end
            end
            applyPendingOverhaulStressInterpolation(spec, ratio)
            self:updateConditionLevel()
        end
    end

    -- work done
    if (spec.maintenanceTimer or 0) <= 0 then
        spec.maintenanceTimer = 0
        if serviceType == states.MAINTENANCE and math.random() < C.PARTS_BREAKDOWN_CHANCES[optionTwoKey] then
            self:addBreakdown('MAINTENANCE_WITH_POOR_QUALITY_CONSUMABLES', 1)
            log_dbg("Added breakdown 'MAINTENANCE_WITH_POOR_QUALITY_CONSUMABLES' due to poor quality consumables chance.")
        end
        self:completeService()
    end
end

function AdvancedDamageSystem:completeService()
    local spec = self.spec_AdvancedDamageSystem
    local states = AdvancedDamageSystem.STATUS
    local serviceType = spec.currentState
    local optionOne = spec.serviceOptionOne
    local optionTwo = spec.serviceOptionTwo
    local optionThree = spec.serviceOptionThree
    local isMobileWorkshop = spec.workshopType == AdvancedDamageSystem.WORKSHOP.MOBILE
    local selectedBreakdowns = ADS_Utils.shallowCopy(spec.pendingSelectedBreakdowns or {})
    local plannedRepairCandidateIds = {}

    if serviceType ~= states.INSPECTION then
        local nominalCapacityAh = math.max(spec.batteryCapacityAh or 0, 1)
        local usableCapacityAh = math.max(
            nominalCapacityAh * ADS_Config.ELECTRICAL.BATTERY_USABLE_CAPACITY_FACTOR,
            0.01
        )
        local effectiveCapacityAh = math.max(usableCapacityAh * math.max(spec.batteryHealth or 0, 0.0001), 0.01)
        spec.batterySoc = 1.0
        spec.batteryChargeAh = effectiveCapacityAh
    end

    --- charge battery
    if serviceType == states.MAINTENANCE and spec.pendingMaintenanceServiceTarget ~= nil then
        local maintenanceStart = spec.pendingMaintenanceServiceStart or spec.serviceLevel
        spec.serviceLevel = math.max(maintenanceStart, spec.pendingMaintenanceServiceTarget)
        for systemKey, targetStress in pairs(spec.pendingPreventiveSystemStressTarget or {}) do
            local systemData = spec.systems[systemKey]
            if systemData ~= nil then
                systemData.stress = math.max(tonumber(targetStress) or 0, 0)
            end
        end
    end

    if serviceType == states.OVERHAUL then
        local hasPerSystemTargets = spec.pendingOverhaulSystemTarget ~= nil and next(spec.pendingOverhaulSystemTarget) ~= nil
        if hasPerSystemTargets then
            for systemKey, targetCondition in pairs(spec.pendingOverhaulSystemTarget) do
                local systemData = spec.systems[systemKey]
                if systemData ~= nil then
                    systemData.condition = math.clamp(tonumber(targetCondition) or systemData.condition or 1.0, 0.001, 1.0)
                    systemData.stress = 0
                end
            end
            self:updateConditionLevel()
        end
        
        spec.serviceLevel = optionOne ~= AdvancedDamageSystem.OVERHAUL_TYPES.PARTIAL and 1.0 or spec.serviceLevel

        local idsToRepair = {}
        for id, _ in pairs(spec.activeBreakdowns) do
            if ADS_Breakdowns.BreakdownRegistry[id] and ADS_Breakdowns.BreakdownRegistry[id].isSelectable then
                if optionOne ~= AdvancedDamageSystem.OVERHAUL_TYPES.PARTIAL or optionTwo == ADS_Breakdowns.BreakdownRegistry[id].system then
                    table.insert(idsToRepair, id)
                end
            end
        end

        selectedBreakdowns = idsToRepair
        if #idsToRepair > 0 then
            self:removeBreakdown(table.unpack(idsToRepair))
        end
    elseif serviceType == states.REPAIR then
        for systemKey, targetStress in pairs(spec.pendingRepairSystemStressTarget or {}) do
            local systemData = spec.systems[systemKey]
            if systemData ~= nil then
                systemData.stress = math.max(tonumber(targetStress) or 0, 0)
            end
        end
        self:updateConditionLevel()

        if optionThree == true then
            spec.plannedState = states.MAINTENANCE
        end
    end

    if serviceType == states.INSPECTION or serviceType == states.MAINTENANCE then
        local needRepair = #selectedBreakdowns > 0
        for _, breakdownId in ipairs(selectedBreakdowns) do
            table.insert(plannedRepairCandidateIds, breakdownId)
        end

        for breakdownId, breakdown in pairs(self:getActiveBreakdowns()) do
            if breakdown.isVisible and breakdown.isSelectedForRepair then
                needRepair = true
                table.insert(plannedRepairCandidateIds, breakdownId)
            end
        end

        if optionThree and needRepair then
            -- Planned repair should have a concrete queue. Ensure discovered/selected visible
            -- breakdowns are marked for repair before the next service starts.
            for _, breakdownId in ipairs(plannedRepairCandidateIds) do
                local breakdown = self:getActiveBreakdowns()[breakdownId]
                if breakdown ~= nil and breakdown.isVisible then
                    breakdown.isSelectedForRepair = true
                end
            end
            spec.plannedState = states.REPAIR
        end
    end

    spec.pendingSelectedBreakdowns = selectedBreakdowns
    self:recalculateAndApplyEffects()
    self:addEntryToMaintenanceLog(serviceType, optionOne, optionTwo, optionThree, spec.pendingServicePrice, true)

    local lastEntry = spec.maintenanceLog and spec.maintenanceLog[#spec.maintenanceLog]
    if lastEntry ~= nil then
        lastEntry.isVisible = true
    end

    -- unpark vehicle
    if self.spec_enterable ~= nil and self.spec_enterable.setIsTabbable ~= nil then 
        self.spec_enterable:setIsTabbable(true)
    end

    -- clean vehicle
    if serviceType ~= states.INSPECTION then
        if not isMobileWorkshop then
            self:setDirtAmount(0)
        end
        spec.radiatorClogging = 0
        spec.airIntakeClogging = 0
        spec.lubricationLevel = 1.0
    end

    local function resetVehicleRepaintWear(vehicle)
        if vehicle == nil or vehicle.spec_wearable == nil then
            return
        end

        local specWearable = vehicle.spec_wearable
        if specWearable.wearableNodes == nil then
            return
        end

        for _, nodeData in ipairs(specWearable.wearableNodes) do
            vehicle:setNodeWearAmount(nodeData, 0, true)
        end
    end

    -- repaint vehicle
    if serviceType == states.OVERHAUL and optionThree == true then
        resetVehicleRepaintWear(self)
    end

    -- cvt addon repair
    if serviceType == states.REPAIR or serviceType == states.OVERHAUL and spec.pendingSelectedBreakdowns.CVT_ADDON_MALFUNCTION ~= nil then
        local systemData = spec.systems.transmission
        if systemData.stress > 0.25 then
            spec.systems.transmission.stress = 0.25
        end
    end

    local maintenanceCompletedText = self:getFullName() .. ": " .. g_i18n:getText(serviceType) .. " " .. g_i18n:getText("ads_spec_maintenance_complete_notification")

    if serviceType == states.INSPECTION or serviceType == states.MAINTENANCE then
        local activeBreakdowns = self:getActiveBreakdowns()
        local activeBreakdownsCount = 0
        for _, value in pairs(activeBreakdowns) do
            if value.isVisible then
                activeBreakdownsCount = activeBreakdownsCount + 1
            end
        end
        if activeBreakdownsCount == 0 then
            maintenanceCompletedText = maintenanceCompletedText .. ". " .. g_i18n:getText("ads_spec_inspection_no_issues_detected_notification")
        else
            maintenanceCompletedText = maintenanceCompletedText .. ". " .. string.format(g_i18n:getText("ads_spec_inspection_issues_detected_notification"), activeBreakdownsCount)
        end
    end

    -- Host-side notification: only if host owns the vehicle (clients get it via ADS_VehicleChangeStatusEvent)
    if g_currentMission.hud ~= nil and g_currentMission.hud.addSideNotification ~= nil
            and self:getOwnerFarmId() == g_currentMission:getFarmId() then
        g_currentMission.hud:addSideNotification({1, 1, 1, 1}, maintenanceCompletedText)
    end

    if g_currentMission:getFarmId() == self.ownerFarmId and ADS_Main.samples ~= nil and ADS_Main.samples.maintenanceCompleted2D ~= nil then
        g_soundManager:playSample(ADS_Main.samples.maintenanceCompleted2D)
    end


    -- Sync maintenance log to all clients via dedicated event
    if self.isServer then
        local lastEntry = spec.maintenanceLog and spec.maintenanceLog[#spec.maintenanceLog]
        if lastEntry ~= nil then
            ADS_LogEntrySyncEvent.sendToClients(self, lastEntry)
        end
    end

    spec.maintenanceTimer = 0
    resetPendingServiceProgress(spec)
    spec.serviceOptionOne = nil
    spec.serviceOptionTwo = nil
    spec.serviceOptionThree = false

    if self.isServer and spec.adsDirtyFlag_state ~= nil then
        self:raiseDirtyFlags(spec.adsDirtyFlag_state)
        self:raiseDirtyFlags(spec.adsDirtyFlag_serviceProgress)
        self:raiseDirtyFlags(spec.adsDirtyFlag_serviceContext)
    end

    if spec.plannedState ~= states.READY then
        local nextWork = spec.plannedState
        spec.plannedState = states.READY
        spec.currentState = states.READY

        local nextOptionOne, nextOptionTwo, nextOptionThree

        if nextWork == states.REPAIR then
            nextOptionOne = AdvancedDamageSystem.REPAIR_TYPES.MEDIUM
            nextOptionTwo = AdvancedDamageSystem.PART_TYPES.OEM
            nextOptionThree = false
        elseif nextWork == states.MAINTENANCE then
            nextOptionOne = AdvancedDamageSystem.MAINTENANCE_TYPES.STANDARD
            nextOptionTwo = AdvancedDamageSystem.PART_TYPES.OEM
            nextOptionThree = false
        end

        if nextWork == states.REPAIR then
            local repairQueueCount = 0
            for breakdownId, breakdown in pairs(self:getActiveBreakdowns()) do
                if isBreakdownSelectedForPlayerRepair(breakdownId, breakdown, AdvancedDamageSystem.REPAIR_TYPES.MEDIUM) then
                    repairQueueCount = repairQueueCount + 1
                end
            end

            if repairQueueCount == 0 then
                log_dbg("Planned REPAIR skipped: no visible selected breakdowns to repair.")
                ADS_VehicleChangeStatusEvent.send(self, maintenanceCompletedText)
                return
            end
        end

        local price = self:getServicePrice(nextWork, nextOptionOne, nextOptionTwo, nextOptionThree)

        if g_currentMission:getMoney() >= price then
            self:initService(nextWork, spec.workshopType, nextOptionOne, nextOptionTwo, nextOptionThree)
            local started = spec.currentState == nextWork and (spec.maintenanceTimer or 0) > 0

            if started then
                if price > 0 then
                    g_currentMission:addMoney(-1 * price, self:getOwnerFarmId(), MoneyType.VEHICLE_RUNNING_COSTS, true, true)
                end
                local nextServiceText = string.format("%s: %s", self:getFullName(), string.format(g_i18n:getText('ads_spec_next_planned_service_notification'), g_i18n:getText(nextWork)))
                if g_currentMission.hud ~= nil and g_currentMission.hud.addSideNotification ~= nil
                        and self:getOwnerFarmId() == g_currentMission:getFarmId() then
                    g_currentMission.hud:addSideNotification({1, 1, 1, 1}, nextServiceText)
                end
                ADS_VehicleChangeStatusEvent.send(self, maintenanceCompletedText)
            else
                log_dbg("Planned service was requested but did not start. State:", tostring(spec.currentState), "Timer:", tostring(spec.maintenanceTimer))
                ADS_VehicleChangeStatusEvent.send(self, maintenanceCompletedText)
            end
        else
            local notEnoughMoneyText = string.format("%s: %s", self:getFullName(), string.format(g_i18n:getText('ads_spec_next_planned_service_not_enouth_money_notification'), g_i18n:getText(nextWork)))
            if g_currentMission.hud ~= nil and g_currentMission.hud.addSideNotification ~= nil
                    and self:getOwnerFarmId() == g_currentMission:getFarmId() then
                g_currentMission.hud:addSideNotification({1, 1, 1, 1}, notEnoughMoneyText)
            end
            ADS_VehicleChangeStatusEvent.send(self, maintenanceCompletedText)
        end
    else
        spec.currentState = states.READY
        ADS_VehicleChangeStatusEvent.send(self, maintenanceCompletedText)
    end
end

function AdvancedDamageSystem:cancelService()
    local spec = self.spec_AdvancedDamageSystem
    local states = AdvancedDamageSystem.STATUS
    local serviceType = spec.currentState

    if serviceType == states.READY then
        return
    end

    local optionOne = spec.serviceOptionOne
    local optionTwo = spec.serviceOptionTwo
    local optionThree = spec.serviceOptionThree
    local selectedBreakdowns = ADS_Utils.shallowCopy(spec.pendingSelectedBreakdowns or {})

    spec.pendingSelectedBreakdowns = selectedBreakdowns
    self:recalculateAndApplyEffects()
    self:addEntryToMaintenanceLog(serviceType, optionOne, optionTwo, optionThree, spec.pendingServicePrice, false)

    local lastEntry = spec.maintenanceLog and spec.maintenanceLog[#spec.maintenanceLog]
    if lastEntry ~= nil then
        lastEntry.isVisible = true
    end

    if self.spec_enterable ~= nil and self.spec_enterable.setIsTabbable ~= nil then
        self.spec_enterable:setIsTabbable(true)
    end

    local cancelText = string.format("%s: %s %s", self:getFullName(), g_i18n:getText(serviceType), g_i18n:getText("ads_spec_maintenance_cancelled_notification"))
    -- Host-side notification: only if host owns the vehicle (clients get it via ADS_VehicleChangeStatusEvent)
    if g_currentMission.hud ~= nil and g_currentMission.hud.addSideNotification ~= nil
            and self:getOwnerFarmId() == g_currentMission:getFarmId() then
        g_currentMission.hud:addSideNotification({1, 1, 1, 1}, cancelText)
    end

    -- Sync maintenance log to all clients via dedicated event
    if self.isServer then
        local lastEntry = spec.maintenanceLog and spec.maintenanceLog[#spec.maintenanceLog]
        if lastEntry ~= nil then
            ADS_LogEntrySyncEvent.sendToClients(self, lastEntry)
        end
    end

    spec.maintenanceTimer = 0
    spec.plannedState = states.READY
    spec.currentState = states.READY
    resetPendingServiceProgress(spec)
    spec.serviceOptionOne = nil
    spec.serviceOptionTwo = nil
    spec.serviceOptionThree = false

    if self.isServer and spec.adsDirtyFlag_state ~= nil then
        self:raiseDirtyFlags(spec.adsDirtyFlag_state)
        self:raiseDirtyFlags(spec.adsDirtyFlag_serviceProgress)
        self:raiseDirtyFlags(spec.adsDirtyFlag_serviceContext)
    end

    ADS_VehicleChangeStatusEvent.send(self, cancelText)
end

function AdvancedDamageSystem:addEntryToMaintenanceLog(maintenanceType, optionOne, optionTwo, optionThree, price, isCompleted)
    local spec = self.spec_AdvancedDamageSystem
    if not spec then return end

    local entryId = (#spec.maintenanceLog or 0) + 1
    local env = g_currentMission.environment
    local selectedBreakdowns = ADS_Utils.shallowCopy(spec.pendingSelectedBreakdowns or {})
    local systemsSnapshot = ADS_Utils.createSystemsSnapshot(spec.systems)
    local realHours = ((spec.realOperatingTime or 0) / (60 * 60 * 1000))
    if realHours <= 0 then
        realHours = self:getFormattedOperatingTime() or 0
    end

    local entry = {
        id = entryId,                     
        type = maintenanceType,
        price = price ~= nil and price or self:getServicePrice(maintenanceType, optionOne, optionTwo, optionThree),
        location = spec.workshopType,
        date = { 
            day = env.currentDayInPeriod or 1, 
            month = env.currentPeriod, 
            year = env.currentYear 
        },

        optionOne = optionOne,
        optionTwo = optionTwo or "NONE",
        optionThree = optionThree,
        isVisible = false,
        isCompleted = isCompleted ~= false,
        isLegacyEntry = false,

        conditionData = {
            year = spec.year,
            operatingHours = realHours,
            age = self.age or 0,
            condition = self:getConditionLevel(),
            service = self:getServiceLevel(),
            systems = systemsSnapshot,
            batterySoc = tonumber(spec.batterySoc) or 1,
            activeBreakdowns = ADS_Utils.deepCopy(self:getActiveBreakdowns()),
            selectedBreakdowns = selectedBreakdowns,
            activeEffects = ADS_Utils.shallowCopy(spec.activeEffects),
            activeIndicators = ADS_Utils.shallowCopy(spec.activeIndicators),
            reliability = spec.reliability,
            maintainability = spec.maintainability,
        }
    }

    table.insert(spec.maintenanceLog, entry)
    spec.lastLogEntry = entry
end


-- ==========================================================
--                OVERWRITTEN FUNCTIONS
-- ==========================================================

function AdvancedDamageSystem.updateDamageAmount(wearable, superFunc, dt)
	if wearable.spec_AdvancedDamageSystem ~= nil and not wearable.spec_AdvancedDamageSystem.isExcludedVehicle then
		return 0
	else
		return superFunc(wearable, dt)
	end
end

function AdvancedDamageSystem.setOperatingTime(self, superFunc, operatingTime, isLoading)
    local spec = self.spec_AdvancedDamageSystem
    if spec ~= nil and not spec.isExcludedVehicle and not isLoading and not spec._allowAdsOperatingTimeWrite then
        return
    end

    superFunc(self, operatingTime, isLoading)
end

function AdvancedDamageSystem.getSellPrice(self, superFunc)
	if self.spec_AdvancedDamageSystem ~= nil and not self.spec_AdvancedDamageSystem.isExcludedVehicle then
		local overallCondition = self:getConditionLevel() or 1.0
        local price = self:getPrice() or 0
        local repaintPrice = Wearable.calculateRepaintPrice(price, self:getWearTotalAmount()) * 0.25
        local repairPrice = self:getServicePrice(
            AdvancedDamageSystem.STATUS.REPAIR,
            AdvancedDamageSystem.REPAIR_TYPES.MEDIUM,
            AdvancedDamageSystem.PART_TYPES.OEM, false, AdvancedDamageSystem.WORKSHOP.DEALER, true)
        return math.clamp(price * overallCondition - repaintPrice - repairPrice, price * 0.03, price * 0.8)
	else
		return superFunc(self)
	end
end

function AdvancedDamageSystem.updateMotorTemperature(self, superFunc, dt)
    local spec = self.spec_AdvancedDamageSystem
    if spec == nil or spec.isExcludedVehicle or hasCVTAddon(self) then
        return superFunc(self, dt)
    else
        local spec_motorized = self.spec_motorized
        if spec_motorized ~= nil then
            self.spec_motorized.motorTemperature.value = AdvancedDamageSystem.sanitizeNumber(spec.engineTemperature, 20, -80, 160)
        end
    end
end

-- ==========================================================
--                        GETTERS
-- ==========================================================

function AdvancedDamageSystem:getServiceLevel()
    return self.spec_AdvancedDamageSystem.serviceLevel
end

function AdvancedDamageSystem:getConditionLevel()
    return self.spec_AdvancedDamageSystem.conditionLevel
end

function AdvancedDamageSystem:getSystemConditionLevel(systemName)
    local spec = self.spec_AdvancedDamageSystem
    local systemKey = ADS_Utils.getSystemKey(AdvancedDamageSystem.SYSTEMS, systemName)
    return spec.systems[systemKey].condition
end

function AdvancedDamageSystem:getSystemStressLevel(systemName)
    local spec = self.spec_AdvancedDamageSystem
    local systemKey = ADS_Utils.getSystemKey(AdvancedDamageSystem.SYSTEMS, systemName)
    return spec.systems[systemKey].stress
end

function AdvancedDamageSystem:isUnderRoofRaycastCallback()
    local spec = self.spec_AdvancedDamageSystem
    if spec ~= nil then
        spec.roofRaycastHit = true
    end
end

function AdvancedDamageSystem:isUnderRoof()
    local spec = self.spec_AdvancedDamageSystem
    local node = self.rootNode
    if (node == nil or node == 0) and self.components ~= nil and self.components[1] ~= nil then
        node = self.components[1].node
    end

    if node == nil or node == 0 then
        return false
    end

    local x, y, z = getWorldTranslation(node)
    local mission = g_currentMission
    local isIndoorMask = false

    if mission ~= nil and mission.indoorMask ~= nil then
        if mission.indoorMask.getIsIndoorAtWorldPosition ~= nil then
            isIndoorMask = mission.indoorMask:getIsIndoorAtWorldPosition(x, z) == true
        else
            local handle, firstChannel, numChannels = mission.indoorMask:getDensityMapData()
            if handle ~= nil and handle ~= 0 and mission.terrainSize ~= nil and mission.terrainSize > 0 then
                local maskSize = getBitVectorMapSize(handle)
                if maskSize ~= nil and maskSize > 0 then
                    local terrainHalfSize = mission.terrainSize * 0.5
                    local worldToDensityMap = maskSize / mission.terrainSize
                    local xI = math.floor((x + terrainHalfSize) * worldToDensityMap)
                    local zI = math.floor((z + terrainHalfSize) * worldToDensityMap)

                    if xI >= 0 and xI < maskSize and zI >= 0 and zI < maskSize then
                        local maskValue = getBitVectorMapPoint(handle, xI, zI, firstChannel, numChannels)
                        local indoorValue = IndoorMask ~= nil and IndoorMask.INDOOR or 1
                        isIndoorMask = maskValue == indoorValue
                    end
                end
            end
        end
    end

    local movementVehicle = self.rootVehicle or self
    local speed = movementVehicle.getLastSpeed ~= nil and math.abs(tonumber(movementVehicle:getLastSpeed(true)) or 0) or 0
    local stationarySpeedLimit = tonumber(ADS_Config.ROOF_STATIONARY_SPEED_LIMIT) or 0.5
    local isStationary = speed <= stationarySpeedLimit

    if not isStationary then
        if spec ~= nil then
            spec.roofWasStationary = false
            spec.roofLastRaycastTime = nil
            spec.roofRaycastResult = nil
        end
        return isIndoorMask
    end

    if spec == nil then
        return isIndoorMask
    end

    local now = (mission ~= nil and mission.time) or g_time or 0
    local raycastInterval = tonumber(ADS_Config.ROOF_RAYCAST_INTERVAL) or 5000
    local lastRaycastTime = tonumber(spec.roofLastRaycastTime)
    local needsRaycast = spec.roofWasStationary ~= true
        or lastRaycastTime == nil
        or now < lastRaycastTime
        or now - lastRaycastTime >= raycastInterval

    spec.roofWasStationary = true

    if needsRaycast and raycastClosest ~= nil and CollisionFlag ~= nil then
        spec.roofLastRaycastTime = now
        spec.roofRaycastHit = false

        local roofMask = CollisionFlag.STATIC_OBJECT + CollisionFlag.BUILDING
        raycastClosest(
            x,
            y + (tonumber(ADS_Config.ROOF_RAYCAST_START_OFFSET) or 1),
            z,
            0,
            1,
            0,
            tonumber(ADS_Config.ROOF_RAYCAST_DISTANCE) or 40,
            "isUnderRoofRaycastCallback",
            self,
            roofMask
        )

        spec.roofRaycastResult = spec.roofRaycastHit == true
    end

    if spec.roofRaycastResult ~= nil then
        return spec.roofRaycastResult == true
    end

    return isIndoorMask
end

function AdvancedDamageSystem:isUnderService()
    return self.spec_AdvancedDamageSystem.currentState ~= AdvancedDamageSystem.STATUS.READY
end

function AdvancedDamageSystem:getCurrentStatus()
    return self.spec_AdvancedDamageSystem.currentState
end

function AdvancedDamageSystem:setNewStatus(status)
    self.spec_AdvancedDamageSystem.currentState = status
    ADS_VehicleChangeStatusEvent.send(self)
end

function AdvancedDamageSystem:getActiveBreakdowns()
    return self.spec_AdvancedDamageSystem.activeBreakdowns
end

function AdvancedDamageSystem.getIsLogEntryHasReport(entry)
    local isVisible = ADS_Utils.normalizeBoolValue(entry.isVisible, true)
    local isCompleted = ADS_Utils.normalizeBoolValue(entry.isCompleted, true)
    local isLegacyEntry = ADS_Utils.normalizeBoolValue(entry.isLegacyEntry, false)

    return (entry.type ~= AdvancedDamageSystem.STATUS.REPAIR 
    and entry.optionOne ~= AdvancedDamageSystem.INSPECTION_TYPES.VISUAL 
    and entry.optionOne ~= "NONE" 
    and isCompleted
    and not isLegacyEntry)
end

function AdvancedDamageSystem.getIsCompleteReport(entry)
    return entry.optionOne == AdvancedDamageSystem.INSPECTION_TYPES.COMPLETE or entry.type == AdvancedDamageSystem.STATUS.OVERHAUL
end

function AdvancedDamageSystem:getLastInspectedCondition()
    local spec = self.spec_AdvancedDamageSystem
    if not spec or not spec.maintenanceLog or #spec.maintenanceLog == 0 then
        return 0
    end

    for i = #spec.maintenanceLog, 1, -1 do
        local entry = spec.maintenanceLog[i]
        if AdvancedDamageSystem.getIsLogEntryHasReport(entry) then
            return entry.conditionData.condition, AdvancedDamageSystem.getIsCompleteReport(entry)
        end
    end
    return 1.0
end

function AdvancedDamageSystem:getLastInspectedService()
    local spec = self.spec_AdvancedDamageSystem
    if not spec or not spec.maintenanceLog or #spec.maintenanceLog == 0 then
        return 0
    end

    for i = #spec.maintenanceLog, 1, -1 do
        local entry = spec.maintenanceLog[i]
        if AdvancedDamageSystem.getIsLogEntryHasReport(entry) then
            return entry.conditionData.service, AdvancedDamageSystem.getIsCompleteReport(entry)
        end
    end
    return 1.0
end

function AdvancedDamageSystem:getLastInspectionDate()
    local spec = self.spec_AdvancedDamageSystem
    if not spec or not spec.maintenanceLog or #spec.maintenanceLog == 0 then
        return 0
    end

    for i = #spec.maintenanceLog, 1, -1 do
        local entry = spec.maintenanceLog[i]
        if AdvancedDamageSystem.getIsLogEntryHasReport(entry) then
            return entry.date
        end
    end
end

function AdvancedDamageSystem:getLastMaintenanceDate()
    local spec = self.spec_AdvancedDamageSystem
    if not spec or not spec.maintenanceLog or #spec.maintenanceLog == 0 then
        return 0
    end

    for i = #spec.maintenanceLog, 1, -1 do
        local entry = spec.maintenanceLog[i]
        if entry.type == AdvancedDamageSystem.STATUS.MAINTENANCE or entry.type == AdvancedDamageSystem.STATUS.OVERHAUL then
            return entry.date
        end
    end
end

function AdvancedDamageSystem:getLastInspectionOperatingHours()
    local spec = self.spec_AdvancedDamageSystem
    if not spec or not spec.maintenanceLog or #spec.maintenanceLog == 0 then
        return 0
    end

    for i = #spec.maintenanceLog, 1, -1 do
        local entry = spec.maintenanceLog[i]
        if AdvancedDamageSystem.getIsLogEntryHasReport(entry) then
            return entry.conditionData.operatingHours
        end
    end
    return 0
end

function AdvancedDamageSystem:getLastMaintenanceOperatingHours()
    local spec = self.spec_AdvancedDamageSystem
    if not spec or not spec.maintenanceLog or #spec.maintenanceLog == 0 then
        return 0
    end

    for i = #spec.maintenanceLog, 1, -1 do
        local entry = spec.maintenanceLog[i]
        if entry.type == AdvancedDamageSystem.STATUS.MAINTENANCE or entry.type == AdvancedDamageSystem.STATUS.OVERHAUL then
            return entry.conditionData.operatingHours
        end
    end
    return 0
end

function AdvancedDamageSystem:getMaintenanceInterval()
    local spec = self.spec_AdvancedDamageSystem
    if not spec then return 0 end
    local lastMaintenanceType = AdvancedDamageSystem.MAINTENANCE_TYPES.STANDARD

    for i = #spec.maintenanceLog, 1, -1 do
        local entry = spec.maintenanceLog[i]
        if entry.type == AdvancedDamageSystem.STATUS.MAINTENANCE then
            lastMaintenanceType = entry.optionOne
            break
        end
    end

    local maintenanceIndex = ADS_Utils.getNameByValue(AdvancedDamageSystem.MAINTENANCE_TYPES, lastMaintenanceType)
    local restoreCoeff = ADS_Config.MAINTENANCE.MAINTENANCE_SERVICE_RESTORE_MULTIPLIERS[maintenanceIndex]
    
    local gameTimeCoeff = 1.0
    if g_modIsLoaded ~= nil and g_modIsLoaded["FS25_ingameTimeOperatingHours"] then
        gameTimeCoeff = getSafeMissionTimeScale()
    end

    local interval = (spec.baseServiceLevel * restoreCoeff / ADS_Config.CORE.BASE_SERVICE_WEAR / 2) * spec.reliability * gameTimeCoeff
    return interval
end

function AdvancedDamageSystem:getHoursSinceLastMaintenance()
    local spec = self.spec_AdvancedDamageSystem
    if not spec then return 0 end

    local gameTimeCoeff = 1.0
    if g_modIsLoaded ~= nil and g_modIsLoaded["FS25_ingameTimeOperatingHours"] then
        gameTimeCoeff = getSafeMissionTimeScale()
    end

    for i = #spec.maintenanceLog, 1, -1 do
        local entry = spec.maintenanceLog[i]
        local isMaintenance = entry.type == AdvancedDamageSystem.STATUS.MAINTENANCE
        local isFullOverhaul = entry.type == AdvancedDamageSystem.STATUS.OVERHAUL
            and entry.optionOne ~= AdvancedDamageSystem.OVERHAUL_TYPES.PARTIAL

        if isMaintenance or isFullOverhaul then
            return math.max(((spec.realOperatingTime / (60 * 60 * 1000)) - (entry.conditionData.operatingHours or 0)) * gameTimeCoeff, 0)
        elseif entry.id == 1 then
            local serviceLevelAtStart = entry.conditionData.service or 0
            local serviceHoursAtInspection = entry.conditionData.operatingHours or 0
            local maintenanceStartRealHours = serviceHoursAtInspection - (spec.baseServiceLevel - serviceLevelAtStart) / (ADS_Config.CORE.BASE_SERVICE_WEAR / spec.reliability)
            local currentRealHours = (spec.realOperatingTime or 0) / (60 * 60 * 1000)
            return math.max((currentRealHours - maintenanceStartRealHours) * gameTimeCoeff, 0)
        end
    end
    return 0
end

function AdvancedDamageSystem:getLastServiceOptions()
    local spec = self.spec_AdvancedDamageSystem
    if not spec or not spec.maintenanceLog or #spec.maintenanceLog == 0 then
        return AdvancedDamageSystem.INSPECTION_TYPES.STANDARD, "NONE", false
    else
        local lastEntry = spec.maintenanceLog[#spec.maintenanceLog]
        return lastEntry.optionOne, lastEntry.optionTwo, lastEntry.optionThree
    end
end

function AdvancedDamageSystem:getOverhaulPerformedCount()
    local spec = self.spec_AdvancedDamageSystem
    if not spec or not spec.maintenanceLog or #spec.maintenanceLog == 0 then
        return 0
    end
    local count = 0
    for i = #spec.maintenanceLog, 1, -1 do
        local entry = spec.maintenanceLog[i]
        if entry.type == AdvancedDamageSystem.STATUS.OVERHAUL  then
            count = count + 1
        end
    end
    return count
end

function AdvancedDamageSystem.getBrandReliability(vehicle, storeItem)
    local year = 2005
    local brandName = 'LIZARD'
    local name = 'LIZARD'

    if vehicle ~= nil then
        name = vehicle:getName()
        local brand = g_brandManager:getBrandByIndex(vehicle:getBrand())
        if not brand then
            return 1.0, 1.0
        end

        local storeItem = g_storeManager:getItemByXMLFilename(vehicle.configFileName)
        if storeItem.specs ~= nil and storeItem.specs.year ~= nil then
            local newYear =  tonumber(storeItem.specs.year)
            if newYear ~= nil then
                year = newYear
            end
        end
        brandName = brand.name

    elseif storeItem ~= nil then
        name = storeItem.name
        brandName = storeItem.brandNameRaw
        if storeItem.specs ~= nil and storeItem.specs.year ~= nil then
            local newYear =  tonumber(storeItem.specs.year)
            if newYear ~= nil then
                year = newYear
            end
        end
    end

    local yearFactor = 0
    if year < ADS_Config.CORE.RELIABILITY_YEAR_FACTOR_THRESHOLD then
        yearFactor = math.max(ADS_Config.CORE.RELIABILITY_YEAR_FACTOR_THRESHOLD - year, 0) * ADS_Config.CORE.RELIABILITY_YEAR_FACTOR
    end

    local modelData = ADS_Config.BRANDS[name]

    if modelData ~= nil then
        return modelData[1], modelData[2]
    end

    local brandData = ADS_Config.BRANDS[brandName]

    if brandData ~= nil then
        return brandData[1], brandData[2] + yearFactor
    else
        return 1.0, 1.0
    end
end

function AdvancedDamageSystem.calculateBreakdownProbability(level, p, dt)
    local threshold = math.clamp(tonumber(ADS_Config.CORE.BREAKDOWN_PROBABILITIES.STRESS_THRESHOLD) or 1.0, 0.0, 0.999)
    local clampedLevel = math.max(tonumber(level) or 0, 0.0)
    local normalizedLevel = math.clamp((clampedLevel - threshold) / math.max(1 - threshold, 0.001), 0.0, 1.0)

    local calculatedMtbf = p.MAX_MTBF + (p.MIN_MTBF - p.MAX_MTBF) * normalizedLevel ^ (math.max(p.DEGREE - p.DEGREE * normalizedLevel, 0.1))
    local mtbfInMinutes = math.max(calculatedMtbf, p.MIN_MTBF)
    local mtbfInMillis = mtbfInMinutes * 60 * 1000

    if mtbfInMillis <= 0 then
        return 1.0
    end

    return 1 - math.exp(-dt / mtbfInMillis)
end

function AdvancedDamageSystem:isWarrantyRepairCovered(repairType, partType)
    local C = ADS_Config.MAINTENANCE
    if C == nil or not C.WARRANTY_ENABLED then
        return false
    end

    if self.propertyState ~= 2 then
        return false
    end

    local resolvedPartType = partType or AdvancedDamageSystem.PART_TYPES.OEM
    local resolverRepairType = repairType or AdvancedDamageSystem.REPAIR_TYPES.MEDIUM
    if resolvedPartType ~= AdvancedDamageSystem.PART_TYPES.OEM or resolverRepairType ~= AdvancedDamageSystem.REPAIR_TYPES.MEDIUM then
        return false
    end

    local operatingHours = self.getFormattedOperatingTime ~= nil and tonumber(self:getFormattedOperatingTime()) or 0
    local ageMonths = tonumber(self.age) or 0

    local lifespanScale = ADS_Config.CORE.DEFAULT_SYSTEM_WEAR / ADS_Config.CORE.BASE_SYSTEMS_WEAR
    if operatingHours >= ((C.WARRANTY_MAX_OPERATING_HOURS * lifespanScale) or 20) or ageMonths >= (C.WARRANTY_MAX_AGE_MONTHS or 12) then
        return false
    end

    return true
end

function AdvancedDamageSystem:getServicePrice(maintenanceType, optionOne, optionTwo, optionThree, workshopTypeOverride, allBreakdowns)
    local price = self:getPrice()
    local spec = self.spec_AdvancedDamageSystem
    local ageFactor = math.min(math.max(math.log10(self.age), 1), 2)
    local C = ADS_Config.MAINTENANCE

    if not maintenanceType then maintenanceType = spec.currentState end

    if maintenanceType == AdvancedDamageSystem.STATUS.READY then
        return 0
    end

    local workshopType = workshopTypeOverride or spec.workshopType
    local workshopKey = ADS_Utils.getNameByValue(AdvancedDamageSystem.WORKSHOP, workshopType)
    local ownWorkshopDiscount = ADS_Config.WORKSHOP.PRICE_MULTIPLIERS[workshopKey] or 1.0

    -- inspection
    if maintenanceType == AdvancedDamageSystem.STATUS.INSPECTION then
        local key = ADS_Utils.getNameByValue(AdvancedDamageSystem.INSPECTION_TYPES, optionOne)
        local inspectionPrice = math.ceil(math.max((C.GLOBAL_SERVICE_PRICE_MULTIPLIER * C.INSPECTION_PRICE_MULTIPLIERS[key] * price * 0.001 * ownWorkshopDiscount / 10) / spec.maintainability, 2)) * 10
        local inspectionPriceLimits = C.INSPECTION_PRICE_LIMITS ~= nil and C.INSPECTION_PRICE_LIMITS[key] or nil
        if inspectionPriceLimits ~= nil then
            inspectionPrice = math.clamp(inspectionPrice, inspectionPriceLimits.min or inspectionPrice, inspectionPriceLimits.max or inspectionPrice)
        end
        log_dbg(string.format("Calculated inspection price: %.2f (base price: %.2f, multiplier: %.4f, own workshop discount: %.2f, maintainability: %.2f)", inspectionPrice, price, C.INSPECTION_PRICE_MULTIPLIERS[key] * C.GLOBAL_SERVICE_PRICE_MULTIPLIER * 0.0005, ownWorkshopDiscount, spec.maintainability))
        return inspectionPrice
        
    -- maintenance
    elseif maintenanceType == AdvancedDamageSystem.STATUS.MAINTENANCE then
        local key = ADS_Utils.getNameByValue(AdvancedDamageSystem.MAINTENANCE_TYPES, optionOne)
        local optionTwoKey = ADS_Utils.getNameByValue(AdvancedDamageSystem.PART_TYPES, optionTwo) or AdvancedDamageSystem.PART_TYPES.OEM
        local maintenancePrice = math.ceil(math.max((C.GLOBAL_SERVICE_PRICE_MULTIPLIER * C.MAINTENANCE_PRICE_MULTIPLIERS[key] * C.PARTS_PRICE_MULTIPLIERS[optionTwoKey] * ownWorkshopDiscount * price * ageFactor * 0.01 / 10) / spec.maintainability, 2)) * 10
        log_dbg(string.format("Calculated maintenance price: %.2f (base price: %.2f, multiplier: %.2f, own workshop discount: %.2f, age factor: %.2f, maintainability: %.2f)", maintenancePrice, price, C.MAINTENANCE_PRICE_MULTIPLIERS[key] * C.GLOBAL_SERVICE_PRICE_MULTIPLIER * C.PARTS_PRICE_MULTIPLIERS[optionTwoKey], ownWorkshopDiscount, ageFactor, spec.maintainability))
        return  maintenancePrice

    -- overhaul
    elseif maintenanceType == AdvancedDamageSystem.STATUS.OVERHAUL then
        local key = ADS_Utils.getNameByValue(AdvancedDamageSystem.OVERHAUL_TYPES, optionOne)
        local overhaulPrice = 0

        if optionOne == AdvancedDamageSystem.OVERHAUL_TYPES.PARTIAL then
            local systemWeight = ADS_Utils.getEffectiveSystemWeight(self, optionTwo, AdvancedDamageSystem.SYSTEMS)
            if systemWeight <= 0 then
                return 0
            end
            overhaulPrice = (price * C.OVERHAUL_PRICE_MULTIPLIERS[key] * C.GLOBAL_SERVICE_PRICE_MULTIPLIER * systemWeight * ownWorkshopDiscount ) / spec.maintainability
        else
            overhaulPrice = (price * C.OVERHAUL_PRICE_MULTIPLIERS[key] * C.GLOBAL_SERVICE_PRICE_MULTIPLIER * ownWorkshopDiscount ) / spec.maintainability
        end
        if optionThree then
            overhaulPrice = overhaulPrice + Wearable.calculateRepaintPrice(self:getSellPrice(), self:getWearTotalAmount()) * 0.25
        end
        overhaulPrice = math.max(overhaulPrice, 100)
        overhaulPrice = math.min(overhaulPrice, price * (C.OVERHAUL_MAX_PRICE_RATIO or 1.0))
        log_dbg(string.format("Calculated overhaul price: %.2f (base price: %.2f, multiplier: %.2f, own workshop discount: %.2f, maintainability: %.2f)", overhaulPrice, price, C.OVERHAUL_PRICE_MULTIPLIERS[key] * C.GLOBAL_SERVICE_PRICE_MULTIPLIER, ownWorkshopDiscount, spec.maintainability))
        return overhaulPrice
    
    -- repair
    elseif maintenanceType == AdvancedDamageSystem.STATUS.REPAIR then
        if self:isWarrantyRepairCovered(optionOne, optionTwo) then
            return 0
        end

        local key = ADS_Utils.getNameByValue(AdvancedDamageSystem.REPAIR_TYPES, optionOne)
        local optionTwoKey = ADS_Utils.getNameByValue(AdvancedDamageSystem.PART_TYPES, optionTwo) or AdvancedDamageSystem.PART_TYPES.OEM
        local repairPrice = 0
        local activeBreakdowns = self:getActiveBreakdowns()
        
        for id, breakdown in pairs(activeBreakdowns) do
            if isBreakdownSelectedForPlayerRepair(id, breakdown, optionOne) or (allBreakdowns and getIsSelectableBreakdown(id)) then
                local registryEntry = ADS_Breakdowns.BreakdownRegistry[id]
                if registryEntry ~= nil then
                    repairPrice = repairPrice + registryEntry.stages[breakdown.stage].repairPrice * C.GLOBAL_SERVICE_PRICE_MULTIPLIER * C.PARTS_PRICE_MULTIPLIERS[optionTwoKey] * C.REPAIR_PRICE_MULTIPLIERS[key] * ownWorkshopDiscount * (price / 100) * ageFactor
                end
            end
        end
        repairPrice = repairPrice * (1 / spec.maintainability)
        return repairPrice
    end
    return 0
end

function AdvancedDamageSystem:getBreakdownRepairPrice(breakdownId, breakdownStage, partType)
    local C = ADS_Config.MAINTENANCE
    local spec = self.spec_AdvancedDamageSystem
    local registryEntry = ADS_Breakdowns.BreakdownRegistry[breakdownId]
    if registryEntry == nil then return 0 end

    local stageData = registryEntry.stages[breakdownStage]
    if stageData == nil then return 0 end

    if self:isWarrantyRepairCovered(AdvancedDamageSystem.REPAIR_TYPES.MEDIUM, partType) then
        return 0
    end

    local price = stageData.repairPrice or 0
    local vehiclePrice = self:getPrice()
    local ageFactor = math.min(math.max(math.log10(self.age), 1), 2)

    local workshopKey = ADS_Utils.getNameByValue(AdvancedDamageSystem.WORKSHOP, spec.workshopType)
    local ownWorkshopDiscount = ADS_Config.WORKSHOP.PRICE_MULTIPLIERS[workshopKey] or 1.0

    return price * C.GLOBAL_SERVICE_PRICE_MULTIPLIER * (vehiclePrice / 100) * ageFactor * ownWorkshopDiscount / spec.maintainability
end

function AdvancedDamageSystem:getServiceDuration(maintenanceType, optionOne, optionTwo, optionThree, workshopTypeOverride)
    local spec = self.spec_AdvancedDamageSystem
    local C = ADS_Config.MAINTENANCE
    local workshopType = workshopTypeOverride or spec.workshopType

    if not maintenanceType then maintenanceType = spec.currentState end

    if maintenanceType == AdvancedDamageSystem.STATUS.READY then
        return 0
    end

    local workDurationHours = 0

    if spec.currentState ~= AdvancedDamageSystem.STATUS.READY and spec.currentState ~= AdvancedDamageSystem.STATUS.BROKEN then
        workDurationHours = spec.maintenanceTimer / 3600000
    else
        local totalDurationMs = 0
        -- inspection
        if maintenanceType == AdvancedDamageSystem.STATUS.INSPECTION then
            if C.INSTANT_INSPECTION and optionOne == AdvancedDamageSystem.INSPECTION_TYPES.VISUAL then
                optionOne = AdvancedDamageSystem.INSPECTION_TYPES.STANDARD
            end
            local key = ADS_Utils.getNameByValue(AdvancedDamageSystem.INSPECTION_TYPES, optionOne)
            if C.INSTANT_INSPECTION then
                totalDurationMs = 1000
            else
                totalDurationMs = C.INSPECTION_TIME * C.GLOBAL_SERVICE_TIME_MULTIPLIER * C.INSPECTION_TIME_MULTIPLIERS[key] / spec.maintainability
            end
        -- maintenance
        elseif maintenanceType == AdvancedDamageSystem.STATUS.MAINTENANCE then
            local key = ADS_Utils.getNameByValue(AdvancedDamageSystem.MAINTENANCE_TYPES, optionOne)
            totalDurationMs = C.MAINTENANCE_TIME * C.GLOBAL_SERVICE_TIME_MULTIPLIER * C.MAINTENANCE_TIME_MULTIPLIERS[key] / spec.maintainability
        -- overhaul
        elseif maintenanceType == AdvancedDamageSystem.STATUS.OVERHAUL then
            local key = ADS_Utils.getNameByValue(AdvancedDamageSystem.OVERHAUL_TYPES, optionOne)
            totalDurationMs = C.OVERHAUL_TIME * C.GLOBAL_SERVICE_TIME_MULTIPLIER * C.OVERHAUL_TIME_MULTIPLIERS[key] / spec.maintainability
            if optionOne == AdvancedDamageSystem.OVERHAUL_TYPES.PARTIAL then
                 local systemWeight = ADS_Utils.getEffectiveSystemWeight(self, optionTwo, AdvancedDamageSystem.SYSTEMS)
                 if systemWeight <= 0 then
                    return 0
                 end
                 totalDurationMs = totalDurationMs * systemWeight
            end
            if optionThree then
                totalDurationMs = totalDurationMs + C.REPAINT_TIME
            end
        -- repair
        elseif maintenanceType == AdvancedDamageSystem.STATUS.REPAIR then
            local key = ADS_Utils.getNameByValue(AdvancedDamageSystem.REPAIR_TYPES, optionOne)
            local repairCount = 0
            local breakdowns = self:getActiveBreakdowns()

            if breakdowns ~= nil and next(breakdowns) ~= nil then
                for id, breakdown in pairs(breakdowns) do
                    if isBreakdownSelectedForPlayerRepair(id, breakdown, optionOne) then
                        repairCount = repairCount + 1
                    end
                end
            end
            totalDurationMs = C.REPAIR_TIME * C.GLOBAL_SERVICE_TIME_MULTIPLIER * C.REPAIR_TIME_MULTIPLIERS[key] * repairCount / spec.maintainability
        end
        workDurationHours = totalDurationMs / 3600000
    end

    if workDurationHours <= 0 then
        return 0
    end

    local totalElapsedHours

    if ADS_Main ~= nil
        and ADS_Main.isWorkshopTypeAlwaysAvailable ~= nil
        and ADS_Main:isWorkshopTypeAlwaysAvailable(workshopType) then
        totalElapsedHours = workDurationHours
    else
        local WORKSHOP_HOURS = ADS_Config.WORKSHOP
        local currentHour = (g_currentMission.environment.dayTime / 3600000) % 24

        totalElapsedHours = 0
        local timeRemaining = workDurationHours

        local workStartTimeToday = math.max(currentHour, WORKSHOP_HOURS.OPEN_HOUR)

        if workStartTimeToday >= WORKSHOP_HOURS.CLOSE_HOUR then
            local hoursUntilNextOpen = (24 - currentHour) + WORKSHOP_HOURS.OPEN_HOUR
            totalElapsedHours = totalElapsedHours + hoursUntilNextOpen
            currentHour = WORKSHOP_HOURS.OPEN_HOUR
        elseif currentHour < WORKSHOP_HOURS.OPEN_HOUR then
            local hoursUntilOpen = WORKSHOP_HOURS.OPEN_HOUR - currentHour
            totalElapsedHours = totalElapsedHours + hoursUntilOpen
            currentHour = WORKSHOP_HOURS.OPEN_HOUR
        end

        while timeRemaining > 0 do
            local remainingWorkHoursToday = WORKSHOP_HOURS.CLOSE_HOUR - currentHour

            if timeRemaining <= remainingWorkHoursToday then
                totalElapsedHours = totalElapsedHours + timeRemaining
                timeRemaining = 0
            else
                totalElapsedHours = totalElapsedHours + remainingWorkHoursToday
                timeRemaining = timeRemaining - remainingWorkHoursToday

                local overnightBreak = (24 - WORKSHOP_HOURS.CLOSE_HOUR) + WORKSHOP_HOURS.OPEN_HOUR
                totalElapsedHours = totalElapsedHours + overnightBreak

                currentHour = WORKSHOP_HOURS.OPEN_HOUR
            end
        end
    end

    return totalElapsedHours
end

function AdvancedDamageSystem:getServiceFinishTime(maintenanceType, optionOne, optionTwo, optionThree, workshopTypeOverride)
    local spec = self.spec_AdvancedDamageSystem

    if not maintenanceType then maintenanceType = spec.currentState end
    local savedOptionOne, savedOptionTwo, savedOptionThree = self:getLastServiceOptions()
    if not optionOne then optionOne = savedOptionOne end
    if not optionTwo then optionTwo = savedOptionTwo end
    if not optionThree then optionThree = savedOptionThree end

    if maintenanceType == AdvancedDamageSystem.STATUS.READY then
        return 0
    end

    local totalCalendarDuration = AdvancedDamageSystem.getServiceDuration(self, maintenanceType, optionOne, optionTwo, optionThree, workshopTypeOverride)

    if totalCalendarDuration <= 0 then
        local currentTime = (g_currentMission.environment.dayTime / 3600000) % 24
        return currentTime, 0
    end

    local currentDayTime = g_currentMission.environment.dayTime / 3600000
    local finishDayTimeAbsolute = currentDayTime + totalCalendarDuration

    local currentDay = math.floor(currentDayTime / 24)
    local finishDay = math.floor(finishDayTimeAbsolute / 24)
    
    local finishTimeOfDay = finishDayTimeAbsolute % 24
    local daysToAdd = finishDay - currentDay
    
    return finishTimeOfDay, daysToAdd
end

-- ==========================================================
--                      CONSOLE COMMANDS
-- ==========================================================

AdvancedDamageSystem.ConsoleCommands = {}

function AdvancedDamageSystem.ConsoleCommands:getTargetVehicle()
    if AdvancedDamageSystem.ConsoleCommands._overrideVehicle ~= nil then
        local v = AdvancedDamageSystem.ConsoleCommands._overrideVehicle
        if v.spec_AdvancedDamageSystem ~= nil then
            return v
        end
        print("ADS Error: Override vehicle does not have AdvancedDamageSystem support.")
        return nil
    end
    local vehicle = g_localPlayer ~= nil
        and g_localPlayer.getCurrentVehicle ~= nil
        and g_localPlayer:getCurrentVehicle()
        or nil
    if not vehicle or not vehicle.spec_AdvancedDamageSystem then
        print("ADS Error: You must be in a vehicle with AdvancedDamageSystem support.")
        return nil
    end
    return vehicle
end

local function parseArguments(argString, ...)
    local extraArgs = { ... }
    local hasExtraArgs = #extraArgs > 0

    if hasExtraArgs then
        local args = {}

        local function appendToken(token)
            if token == nil then
                return
            end
            token = tostring(token)
            if token == "" then
                return
            end

            if string.find(token, "%s") then
                for splitToken in string.gmatch(token, "[^%s]+") do
                    table.insert(args, splitToken)
                end
            else
                table.insert(args, token)
            end
        end

        appendToken(argString)
        for _, extraArg in ipairs(extraArgs) do
            appendToken(extraArg)
        end

    return args
end

local function recalculateMotorPowerFromTorqueCurve(motor)
    if motor == nil or motor.torqueCurve == nil or motor.torqueCurve.keyframes == nil then
        return false
    end

    motor.peakMotorTorque = motor.torqueCurve:getMaximum()
    motor.peakMotorPower = 0
    motor.peakMotorPowerRotSpeed = 0

    local numKeyFrames = #motor.torqueCurve.keyframes
    if numKeyFrames >= 2 then
        for i = 2, numKeyFrames do
            local v0 = motor.torqueCurve.keyframes[i - 1]
            local v1 = motor.torqueCurve.keyframes[i]
            local torque0 = motor.torqueCurve:getFromKeyframes(v0, v0, i - 1, i - 1, 0)
            local torque1 = motor.torqueCurve:getFromKeyframes(v1, v1, i, i, 0)
            local rpm
            local torque

            if math.abs(torque0 - torque1) > 0.0001 then
                rpm = (v1.time * torque0 - v0.time * torque1) / (2.0 * (torque0 - torque1))
                rpm = math.min(math.max(rpm, v0.time), v1.time)
                torque = motor.torqueCurve:getFromKeyframes(v0, v1, i - 1, i, (v1.time - rpm) / (v1.time - v0.time))
            else
                rpm = v0.time
                torque = torque0
            end

            local power = torque * rpm
            if power > motor.peakMotorPower then
                motor.peakMotorPower = power
                motor.peakMotorPowerRotSpeed = rpm
            end
        end

        motor.peakMotorPower = motor.peakMotorPower * math.pi / 30
        motor.peakMotorPowerRotSpeed = motor.peakMotorPowerRotSpeed * math.pi / 30
    elseif numKeyFrames == 1 then
        local v = motor.torqueCurve.keyframes[1]
        local rotSpeed = v.time * math.pi / 30
        local torque = motor.torqueCurve:getFromKeyframes(v, v, 1, 1, 0)
        motor.peakMotorPower = rotSpeed * torque
        motor.peakMotorPowerRotSpeed = rotSpeed
    end

    return true
end

local function refreshAttachedImplementSourceMotorPeakPower(rootVehicle)
    if rootVehicle == nil or rootVehicle.getAttachedImplements == nil then
        return
    end

    local rootMotor = rootVehicle.getMotor ~= nil and rootVehicle:getMotor() or nil
    local rootPeakMotorPower = rootMotor ~= nil and rootMotor.peakMotorPower or math.huge

    for _, implement in pairs(rootVehicle:getAttachedImplements()) do
        local object = implement ~= nil and implement.object or nil
        if object ~= nil then
            if object.spec_powerConsumer ~= nil then
                object.spec_powerConsumer.sourceMotorPeakPower = rootPeakMotorPower
            end
            refreshAttachedImplementSourceMotorPeakPower(object)
        end
    end
end

local function getAttachedPlowLikeImplement(vehicle)
    if vehicle == nil then
        return nil
    end

    local selectedImplement = vehicle.getSelectedImplement ~= nil and vehicle:getSelectedImplement() or nil
    local selectedObject = selectedImplement ~= nil and selectedImplement.object or nil
    if selectedObject ~= nil and selectedObject.spec_powerConsumer ~= nil then
        return selectedObject
    end

    local attachedImplements = vehicle.getAttachedImplements ~= nil and vehicle:getAttachedImplements() or nil
    if attachedImplements == nil then
        return nil
    end

    for _, implement in pairs(attachedImplements) do
        local object = implement ~= nil and implement.object or nil
        if object ~= nil then
            if object.spec_plow ~= nil and object.spec_powerConsumer ~= nil then
                return object
            end
        end
    end

    for _, implement in pairs(attachedImplements) do
        local object = implement ~= nil and implement.object or nil
        if object ~= nil and object.spec_powerConsumer ~= nil then
            return object
        end
    end

    return nil
end

    if argString == nil or type(argString) ~= 'string' or argString == '' then
        return {}
    end

    local args = {}
    for arg in string.gmatch(argString, "[^%s]+") do
        table.insert(args, arg)
    end
    return args
end

local function parsePathTokens(path)
    local tokens = {}
    if type(path) ~= "string" or path == "" then
        return tokens
    end

    for token in string.gmatch(path, "[^%.]+") do
        local numberToken = tonumber(token)
        if numberToken ~= nil then
            table.insert(tokens, numberToken)
        else
            table.insert(tokens, token)
        end
    end

    return tokens
end

local function parseConsoleValue(rawValue)
    if rawValue == nil then
        return nil, false
    end

    local lowerValue = string.lower(tostring(rawValue))
    if lowerValue == "true" then
        return true, true
    end
    if lowerValue == "false" then
        return false, true
    end
    if lowerValue == "nil" then
        return nil, true
    end

    local numberValue = tonumber(rawValue)
    if numberValue ~= nil then
        return numberValue, true
    end

    return rawValue, true
end

local function resolvePathParent(rootTable, fullPath)
    if type(rootTable) ~= "table" then
        return nil, nil, nil, "Root is not a table."
    end

    local tokens = parsePathTokens(fullPath)
    if #tokens == 0 then
        return nil, nil, nil, "Path is empty."
    end

    local current = rootTable
    for i = 1, #tokens - 1 do
        local key = tokens[i]
        if type(current) ~= "table" then
            return nil, nil, nil, string.format("Path segment '%s' is not a table.", tostring(key))
        end

        current = current[key]
        if current == nil then
            return nil, nil, nil, string.format("Path segment '%s' does not exist.", tostring(key))
        end
    end

    return current, tokens[#tokens], tokens
end

local function getPrimaryFuelConsumerInfo(vehicle)
    if vehicle == nil or vehicle.spec_motorized == nil or vehicle.spec_motorized.consumers == nil then
        return nil, nil
    end

    local preferredTypes = {}
    if FillType ~= nil then
        if FillType.DIESEL ~= nil then table.insert(preferredTypes, FillType.DIESEL) end
        if FillType.METHANE ~= nil then table.insert(preferredTypes, FillType.METHANE) end
        if FillType.ELECTRICCHARGE ~= nil then table.insert(preferredTypes, FillType.ELECTRICCHARGE) end
    end

    local function isPreferred(fillType)
        for _, preferredType in ipairs(preferredTypes) do
            if fillType == preferredType then
                return true
            end
        end
        return false
    end

    local fallbackConsumer = nil
    local defFillType = FillType ~= nil and FillType.DEF or nil
    for _, consumer in pairs(vehicle.spec_motorized.consumers) do
        if consumer ~= nil and consumer.fillUnitIndex ~= nil and consumer.fillType ~= nil then
            if isPreferred(consumer.fillType) then
                return consumer.fillUnitIndex, consumer.fillType
            end

            if fallbackConsumer == nil and (defFillType == nil or consumer.fillType ~= defFillType) then
                fallbackConsumer = consumer
            end
        end
    end

    if fallbackConsumer ~= nil then
        return fallbackConsumer.fillUnitIndex, fallbackConsumer.fillType
    end

    return nil, nil
end

local function syncConsoleCloggingState(vehicle, spec, parent, key)
    if vehicle == nil or spec == nil or parent ~= spec then
        return false
    end

    if key ~= "radiatorClogging" and key ~= "airIntakeClogging" then
        return false
    end

    spec.radiatorClogging = math.clamp(tonumber(spec.radiatorClogging) or 0, 0.0, 1.0)
    spec.airIntakeClogging = math.clamp(tonumber(spec.airIntakeClogging) or 0, 0.0, 1.0)

    if vehicle.spec_washable ~= nil and vehicle.setDirtAmount ~= nil and vehicle.getDirtAmount ~= nil then
        local currentDirtAmount = math.clamp(tonumber(vehicle:getDirtAmount()) or 0, 0.0, 1.0)
        local requiredDirtAmount = math.max(spec.radiatorClogging or 0, spec.airIntakeClogging or 0)
        if requiredDirtAmount > currentDirtAmount + 0.0001 then
            vehicle:setDirtAmount(requiredDirtAmount)
        end
    end

    if vehicle.isServer and spec.adsDirtyFlag_fieldcare ~= nil then
        vehicle:raiseDirtyFlags(spec.adsDirtyFlag_fieldcare)
    end

    return true
end

local function printSpecValueRecursive(prefix, value, visited, depth)
    visited = visited or {}
    depth = depth or 0

    if type(value) ~= "table" then
        print(string.format("%s = %s", prefix, tostring(value)))
        return
    end

    if visited[value] then
        print(string.format("%s = <recursive>", prefix))
        return
    end

    visited[value] = true
    print(string.format("%s = {", prefix))

    local keys = {}
    for key, _ in pairs(value) do
        table.insert(keys, key)
    end

    table.sort(keys, function(a, b)
        if type(a) == type(b) then
            if type(a) == "number" or type(a) == "string" then
                return a < b
            end
        end
        return tostring(a) < tostring(b)
    end)

    local indent = string.rep("  ", depth + 1)
    for _, key in ipairs(keys) do
        local childPrefix = string.format("%s[%s]", prefix, tostring(key))
        local childValue = value[key]
        if type(childValue) == "table" then
            print(string.format("%s[%s] = {", indent, tostring(key)))
            printSpecValueRecursive(indent .. "  ", childValue, visited, depth + 1)
            print(string.format("%s}", indent))
        else
            print(string.format("%s[%s] = %s", indent, tostring(key), tostring(childValue)))
        end
    end

    print(string.format("%s}", string.rep("  ", depth)))
end

function AdvancedDamageSystem.ConsoleCommands:setConfigVar(rawArgs, rawValue)
    if not g_currentMission:getIsServer() then
        ADS_ConsoleCommandEvent.sendToServer("setConfigVar", rawArgs, rawValue, nil)
        return
    end
    local path = nil
    local valueToken = nil

    if rawValue ~= nil then
        path = tostring(rawArgs)
        valueToken = tostring(rawValue)
    else
        local args = parseArguments(rawArgs)
        path = args and args[1] or nil
        valueToken = args and args[2] or nil
    end

    if path == nil or valueToken == nil then
        print("ADS Error: Usage: ads_setConfigVar <path> <value>")
        print("Example: ads_setConfigVar CORE.BASE_SYSTEMS_WEAR 0.02")
        return
    end

    local value, valueParsed = parseConsoleValue(valueToken)
    if not valueParsed then
        print("ADS Error: Failed to parse value.")
        return
    end

    local parent, key, _, err = resolvePathParent(ADS_Config, path)
    if parent == nil then
        print(string.format("ADS Error: Invalid ADS_Config path '%s': %s", path, tostring(err)))
        return
    end

    local oldValue = parent[key]
    parent[key] = value

    print(string.format("ADS: ADS_Config.%s changed: %s -> %s", path, tostring(oldValue), tostring(value)))
end

function AdvancedDamageSystem.ConsoleCommands:setSpecVar(rawArgs, rawValue)
    if not g_currentMission:getIsServer() then
        local vehicle = self:getTargetVehicle()
        if vehicle then ADS_ConsoleCommandEvent.sendToServer("setSpecVar", rawArgs, rawValue, vehicle) end
        return
    end
    local vehicle = self:getTargetVehicle()
    if not vehicle then return end

    local path = nil
    local valueToken = nil

    if rawValue ~= nil then
        path = tostring(rawArgs)
        valueToken = tostring(rawValue)
    else
        local args = parseArguments(rawArgs)
        path = args and args[1] or nil
        valueToken = args and args[2] or nil
    end

    if path == nil or valueToken == nil then
        print("ADS Error: Usage: ads_setSpecVar <path> <value>")
        print("Example: ads_setSpecVar systems.engine.condition 0.85")
        return
    end

    local spec = vehicle.spec_AdvancedDamageSystem
    local value, valueParsed = parseConsoleValue(valueToken)
    if not valueParsed then
        print("ADS Error: Failed to parse value.")
        return
    end

    local parent, key, _, err = resolvePathParent(spec, path)
    if parent == nil then
        print(string.format("ADS Error: Invalid ADS spec path '%s': %s", path, tostring(err)))
        return
    end

    local oldValue = parent[key]
    parent[key] = value

    local syncedCloggingState = syncConsoleCloggingState(vehicle, spec, parent, key)

    print(string.format("ADS: spec_AdvancedDamageSystem.%s changed on '%s': %s -> %s", path, vehicle:getFullName(), tostring(oldValue), tostring(value)))
    if syncedCloggingState then
        print(string.format(
            "ADS: clogging state synced on '%s' (dirt=%.2f, radiator=%.2f, airIntake=%.2f).",
            vehicle:getFullName(),
            tonumber(vehicle.getDirtAmount ~= nil and vehicle:getDirtAmount() or 0) or 0,
            tonumber(spec.radiatorClogging) or 0,
            tonumber(spec.airIntakeClogging) or 0
        ))
    end
end

function AdvancedDamageSystem.ConsoleCommands:printSpecVar(rawArgs)
    if not g_currentMission:getIsServer() then
        local vehicle = self:getTargetVehicle()
        if vehicle then ADS_ConsoleCommandEvent.sendToServer("printSpecVar", rawArgs, nil, vehicle) end
        return
    end

    local vehicle = self:getTargetVehicle()
    if not vehicle then return end

    local args = parseArguments(rawArgs)
    local path = args and args[1] or nil
    if path == nil then
        print("ADS Error: Usage: ads_printSpecVar <path>")
        print("Example: ads_printSpecVar systems.engine")
        return
    end

    local spec = vehicle.spec_AdvancedDamageSystem
    local parent, key, _, err = resolvePathParent(spec, path)
    if parent == nil then
        print(string.format("ADS Error: Invalid ADS spec path '%s': %s", path, tostring(err)))
        return
    end

    local value = parent[key]
    if value == nil then
        print(string.format("ADS: spec_AdvancedDamageSystem.%s = nil", path))
        return
    end

    if type(value) == "table" then
        print(string.format("ADS: spec_AdvancedDamageSystem.%s on '%s':", path, vehicle:getFullName()))
        printSpecValueRecursive("spec_AdvancedDamageSystem." .. path, value, {}, 0)
    else
        print(string.format(
            "ADS: spec_AdvancedDamageSystem.%s on '%s' = %s",
            path,
            vehicle:getFullName(),
            tostring(value)
        ))
    end
end

function AdvancedDamageSystem.ConsoleCommands:listBreakdowns()
    print("--- Available Breakdowns ---")
    
    local breakdownIds = {}
    for id, data in pairs(ADS_Breakdowns.BreakdownRegistry) do
        table.insert(breakdownIds, string.format(" - %s (%s)", id, data.part or data.system or "No name"))
    end

    if #breakdownIds > 0 then
        table.sort(breakdownIds)
        print(table.concat(breakdownIds, "\n"))
    else
        print("  No breakdowns found in the registry.")
    end
    print("----------------------------")
end

function AdvancedDamageSystem.ConsoleCommands:addBreakdown(rawArgs, rawArgTwo)
    if not g_currentMission:getIsServer() then
        local vehicle = self:getTargetVehicle()
        if vehicle then ADS_ConsoleCommandEvent.sendToServer("addBreakdown", rawArgs, rawArgTwo, vehicle) end
        return
    end
    local args = parseArguments(rawArgs, rawArgTwo)
    local vehicle = self:getTargetVehicle()
    if not vehicle then return end

    if not args or not args[1] then
        local randomId = vehicle:getRandomBreakdown()
        if randomId then
            vehicle:addBreakdown(randomId, 1)
            print(string.format("ADS: Added random breakdown '%s' to '%s'.", randomId, vehicle:getFullName()))
        end
        return
    end

    local breakdownId = string.upper(args[1])
    local stage = tonumber(args[2]) or 1

    local registryEntry = ADS_Breakdowns.BreakdownRegistry[breakdownId]
    if not registryEntry then
        print(string.format("ADS Error: Breakdown with ID '%s' not found.", breakdownId))
        self:listBreakdowns()
        return
    end
    
    local maxStages = #registryEntry.stages
    if stage < 1 or stage > maxStages then
        print(string.format("ADS Error: Invalid stage '%d' for breakdown '%s'. Valid stages are 1 to %d.", stage, breakdownId, maxStages))
        return
    end

    if registryEntry.isApplicable ~= nil and not registryEntry.isApplicable(vehicle) then
        print(string.format("ADS Error: Breakdown with ID '%s' not applicable to %s", breakdownId, vehicle:getFullName()))
        return
    end
    
    vehicle:addBreakdown(breakdownId, stage)
    print(string.format("ADS: Added breakdown '%s' at stage %d to '%s'.", breakdownId, stage, vehicle:getFullName()))
end

function AdvancedDamageSystem.ConsoleCommands:removeBreakdown(rawArgs)
    if not g_currentMission:getIsServer() then
        local vehicle = self:getTargetVehicle()
        if vehicle then ADS_ConsoleCommandEvent.sendToServer("removeBreakdown", rawArgs, nil, vehicle) end
        return
    end
    local args = parseArguments(rawArgs)
    local vehicle = self:getTargetVehicle()
    if not vehicle then return end

    if args and args[1] then
        local breakdownId = string.upper(args[1])
        vehicle:removeBreakdown(breakdownId)
    else
        vehicle:removeBreakdown() 
    end
end

function AdvancedDamageSystem.ConsoleCommands:changeBreakdownStage(rawArgs)
    if not g_currentMission:getIsServer() then
        local vehicle = self:getTargetVehicle()
        if vehicle then ADS_ConsoleCommandEvent.sendToServer("changeBreakdownStage", rawArgs, nil, vehicle) end
        return
    end
    local args = parseArguments(rawArgs)
    local vehicle = self:getTargetVehicle()
    if not vehicle then return end

    local spec = vehicle.spec_AdvancedDamageSystem
    local advancedCount = 0

    local function parseStageArg(rawValue)
        if rawValue == nil then
            return nil
        end

        local lowered = string.lower(tostring(rawValue))
        if lowered == "true" or lowered == "reverse" or lowered == "down" or lowered == "prev" then
            return true
        end

        local numeric = tonumber(rawValue)
        if numeric ~= nil then
            return numeric
        end

        return nil
    end

    if not args or not args[1] then
        if next(spec.activeBreakdowns) == nil then
            print("ADS: No active breakdowns to advance.")
            return
        end

        for id, breakdown in pairs(vehicle:getActiveBreakdowns()) do
            local previousStage = breakdown.stage
            vehicle:changeBreakdownStage(id)
            if breakdown.stage ~= previousStage then
                print(string.format("ADS: Changed breakdown '%s' from stage %d to stage %d.", id, previousStage, breakdown.stage))
                advancedCount = advancedCount + 1
            else
                print(string.format("ADS: Breakdown '%s' stage unchanged (%d).", id, breakdown.stage))
            end
        end
    else
        local breakdownId = string.upper(args[1])
        local foundBreakdown = spec.activeBreakdowns[breakdownId]

        if not foundBreakdown then
            print(string.format("ADS Error: Active breakdown with ID '%s' not found on this vehicle.", breakdownId))
            return
        end

        local previousStage = foundBreakdown.stage
        vehicle:changeBreakdownStage(breakdownId, parseStageArg(args[2]))
        if foundBreakdown.stage ~= previousStage then
            print(string.format("ADS: Changed breakdown '%s' from stage %d to stage %d.", breakdownId, previousStage, foundBreakdown.stage))
            advancedCount = advancedCount + 1
        else
            print(string.format("ADS: Breakdown '%s' stage unchanged (%d).", breakdownId, foundBreakdown.stage))
        end
    end

    if advancedCount > 0 then
        print(string.format("ADS: Recalculated effects for '%s'.", vehicle:getFullName()))
    end
end

function AdvancedDamageSystem.ConsoleCommands:setSystemCondition(rawArgs, rawArgTwo)
    if not g_currentMission:getIsServer() then
        local vehicle = self:getTargetVehicle()
        if vehicle then ADS_ConsoleCommandEvent.sendToServer("setSystemCondition", rawArgs, rawArgTwo, vehicle) end
        return
    end
    local args = parseArguments(rawArgs, rawArgTwo)
    local vehicle = self:getTargetVehicle()
    if not vehicle then return end
    
    local spec = vehicle.spec_AdvancedDamageSystem

    local function resolveSystemKey(rawSystem)
        if rawSystem == nil or rawSystem == "" then
            return nil
        end

        local normalized = string.lower(rawSystem)
        for key, _ in pairs(spec.systems or {}) do
            if string.lower(tostring(key)) == normalized then
                return key
            end
        end

        return false
    end

    local requestedSystem = args and args[1] or nil
    if requestedSystem == nil then
        print("ADS Error: Missing system. Usage: ads_setSystemCondition [system] [0.0-1.0]")
        return
    end

    local systemKey = resolveSystemKey(requestedSystem)

    if systemKey == false then
        local availableSystems = {}
        for key, _ in pairs(spec.systems or {}) do
            table.insert(availableSystems, tostring(key))
        end
        table.sort(availableSystems)
        print(string.format("ADS Error: Unknown system '%s'. Available systems: %s", tostring(requestedSystem), table.concat(availableSystems, ", ")))
        return
    end

    local value = tonumber(args and args[2] or nil)
    if value == nil or value < 0 or value > 1 then
        print("ADS Error: Invalid value. Please provide a number between 0.0 and 1.0.")
        return
    end

    local systemData = spec.systems[systemKey]
    if type(systemData) == "table" then
        systemData.condition = value
    else
        spec.systems[systemKey] = value
    end
    print(string.format("ADS: Set condition for system '%s' on '%s' to %.2f.", tostring(systemKey), vehicle:getFullName(), value))

    vehicle:updateConditionLevel()
end

function AdvancedDamageSystem.ConsoleCommands:setCondition(rawArgs)
    if not g_currentMission:getIsServer() then
        local vehicle = self:getTargetVehicle()
        if vehicle then ADS_ConsoleCommandEvent.sendToServer("setCondition", rawArgs, nil, vehicle) end
        return
    end

    local args = parseArguments(rawArgs)
    local vehicle = self:getTargetVehicle()
    if not vehicle then
        return
    end

    local spec = vehicle.spec_AdvancedDamageSystem
    local targetCondition = tonumber(args and args[1] or nil)
    if targetCondition == nil or targetCondition < 0 or targetCondition > 1 then
        print("ADS Error: Invalid value. Please provide a number between 0.0 and 1.0.")
        return
    end

    local changedSystems = 0

    for _, systemData in pairs(spec.systems or {}) do
        if type(systemData) == "table" and systemData.enabled ~= false then
            systemData.condition = targetCondition
            changedSystems = changedSystems + 1
        end
    end

    if changedSystems == 0 then
        print("ADS Error: No enabled systems were found on the current vehicle.")
        return
    end

    vehicle:updateConditionLevel()
    print(string.format("ADS: Set condition for %d enabled systems on '%s' to %.3f. Final overall condition: %.3f.",
        changedSystems, vehicle:getFullName(), targetCondition, vehicle.spec_AdvancedDamageSystem.conditionLevel or 0))
end

function AdvancedDamageSystem.ConsoleCommands:setSystemStress(rawArgs, rawArgTwo)
    if not g_currentMission:getIsServer() then
        local vehicle = self:getTargetVehicle()
        if vehicle then ADS_ConsoleCommandEvent.sendToServer("setSystemStress", rawArgs, rawArgTwo, vehicle) end
        return
    end
    local args = parseArguments(rawArgs, rawArgTwo)
    local vehicle = self:getTargetVehicle()
    if not vehicle then return end

    local spec = vehicle.spec_AdvancedDamageSystem

    local function resolveSystemKey(rawSystem)
        if rawSystem == nil or rawSystem == "" then
            return nil
        end

        local normalized = string.lower(rawSystem)
        for key, _ in pairs(spec.systems or {}) do
            if string.lower(tostring(key)) == normalized then
                return key
            end
        end

        return false
    end

    local requestedSystem = args and args[1] or nil
    if requestedSystem == nil then
        print("ADS Error: Missing system. Usage: ads_setSystemStress [system] [>=0.0]")
        return
    end

    local systemKey = resolveSystemKey(requestedSystem)

    if systemKey == false then
        local availableSystems = {}
        for key, _ in pairs(spec.systems or {}) do
            table.insert(availableSystems, tostring(key))
        end
        table.sort(availableSystems)
        print(string.format("ADS Error: Unknown system '%s'. Available systems: %s", tostring(requestedSystem), table.concat(availableSystems, ", ")))
        return
    end

    local value = tonumber(args and args[2] or nil)
    if value == nil or value < 0 then
        print("ADS Error: Invalid value. Please provide a number >= 0.0.")
        return
    end

    local systemData = spec.systems[systemKey]
    if type(systemData) == "table" then
        systemData.stress = value
    else
        spec.systems[systemKey] = { condition = systemData or 1.0, stress = value }
    end
    print(string.format("ADS: Set stress for system '%s' on '%s' to %.4f.", tostring(systemKey), vehicle:getFullName(), value))
end

function AdvancedDamageSystem.ConsoleCommands:setSystemStressMultiplier(rawArgs, rawArgTwo)
    if not g_currentMission:getIsServer() then
        local vehicle = self:getTargetVehicle()
        if vehicle then ADS_ConsoleCommandEvent.sendToServer("setSystemStressMultiplier", rawArgs, rawArgTwo, vehicle) end
        return
    end
    local args = parseArguments(rawArgs, rawArgTwo)
    local vehicle = self:getTargetVehicle()
    if not vehicle then return end

    local spec = vehicle.spec_AdvancedDamageSystem
    local multipliers = ADS_Config.CORE.SYSTEM_STRESS_ACCUMULATION_MULTIPLIERS

    if multipliers == nil then
        print("ADS Error: SYSTEM_STRESS_ACCUMULATION_MULTIPLIERS is missing in config.")
        return
    end

    local value = 1.0
    if args and args[1] then
        local parsedValue = tonumber(args[1])
        if parsedValue == nil or parsedValue < 0 then
            print("ADS Error: Invalid value. Please provide a number >= 0.0.")
            return
        end
        value = parsedValue
    end

    local function resolveSystemKey(rawSystem)
        if rawSystem == nil or rawSystem == "" then
            return nil
        end

        local normalized = string.lower(rawSystem)
        for key, _ in pairs(spec.systems or {}) do
            if string.lower(tostring(key)) == normalized then
                return key
            end
        end

        return false
    end

    local requestedSystem = args and args[2] or nil
    local systemKey = resolveSystemKey(requestedSystem)

    if systemKey == false then
        local availableSystems = {}
        for key, _ in pairs(spec.systems or {}) do
            table.insert(availableSystems, tostring(key))
        end
        table.sort(availableSystems)
        print(string.format("ADS Error: Unknown system '%s'. Available systems: %s", tostring(requestedSystem), table.concat(availableSystems, ", ")))
        return
    end

    if systemKey == nil then
        for key, _ in pairs(multipliers) do
            if type(key) == "string" then
                multipliers[key] = value
            end
        end
        print(string.format("ADS: Set stress accumulation multiplier for all systems to %.4f.", value))
    else
        multipliers[systemKey] = value
        print(string.format("ADS: Set stress accumulation multiplier for system '%s' to %.4f.", tostring(systemKey), value))
    end
end

function AdvancedDamageSystem.ConsoleCommands:setService(rawArgs)
    if not g_currentMission:getIsServer() then
        local vehicle = self:getTargetVehicle()
        if vehicle then ADS_ConsoleCommandEvent.sendToServer("setService", rawArgs, nil, vehicle) end
        return
    end
    local args = parseArguments(rawArgs)
    local vehicle = self:getTargetVehicle()
    if not vehicle then return end
    
    local spec = vehicle.spec_AdvancedDamageSystem
    local value = 1.0

    if args and args[1] then
        local parsedValue = tonumber(args[1])
        if parsedValue == nil or parsedValue < 0 or parsedValue > 1 then
            print("ADS Error: Invalid value. Please provide a number between 0.0 and 1.0.")
            return
        end
        value = parsedValue
    end
    
    spec.serviceLevel = value

    local interval = vehicle:getMaintenanceInterval()
    local currentHours = spec.realOperatingTime / (60 * 60 * 1000) or vehicle:getFormattedOperatingTime() or 0
    local serviceExpiredThreshold = math.clamp(tonumber(ADS_Config.CORE.SERVICE_EXPIRED_THRESHOLD) or 0.5, 0, 0.9999)
    local activeServiceRange = math.max(1 - serviceExpiredThreshold, 0.0001)
    local hoursSinceService = ((1 - value) / activeServiceRange) * interval
    local targetOpHours = currentHours - hoursSinceService
    local found = false
    for i = #spec.maintenanceLog, 1, -1 do
        local entry = spec.maintenanceLog[i]
        if entry.type == AdvancedDamageSystem.STATUS.MAINTENANCE or entry.id == 1 then
            entry.conditionData.operatingHours = targetOpHours
            entry.conditionData.service = value
            if vehicle.isServer then
                ADS_LogEntrySyncEvent.sendToClients(vehicle, entry)
            end
            found = true
            break
        end
    end
    if not found and vehicle.isServer then
        vehicle:addEntryToMaintenanceLog(AdvancedDamageSystem.STATUS.INSPECTION, AdvancedDamageSystem.INSPECTION_TYPES.STANDARD, "NONE", false, 0)
        local entry = spec.maintenanceLog[#spec.maintenanceLog]
        if entry then
            entry.conditionData.operatingHours = targetOpHours
            entry.conditionData.service = value
            entry.isVisible = false
        end
    end

    print(string.format("ADS: Set Service level for '%s' to %.2f.", vehicle:getFullName(), value))
end

function AdvancedDamageSystem.ConsoleCommands:resetVehicle()
    if not g_currentMission:getIsServer() then
        local vehicle = self:getTargetVehicle()
        if vehicle then ADS_ConsoleCommandEvent.sendToServer("resetVehicle", nil, nil, vehicle) end
        return
    end
    local vehicle = self:getTargetVehicle()
    if not vehicle then return end
    
    local spec = vehicle.spec_AdvancedDamageSystem
    spec.conditionLevel = 1.0
    spec.serviceLevel = 1.0
    vehicle:removeBreakdown()

    local currentHours = vehicle:getFormattedOperatingTime()
    local found = false
    for i = #spec.maintenanceLog, 1, -1 do
        local entry = spec.maintenanceLog[i]
        if entry.type == AdvancedDamageSystem.STATUS.MAINTENANCE or entry.id == 1 then
            entry.conditionData.operatingHours = currentHours
            entry.conditionData.condition = 1.0
            entry.conditionData.service = 1.0
            if vehicle.isServer then
                ADS_LogEntrySyncEvent.sendToClients(vehicle, entry)
            end
            found = true
            break
        end
    end
    if not found and vehicle.isServer then
        vehicle:addEntryToMaintenanceLog(AdvancedDamageSystem.STATUS.INSPECTION, AdvancedDamageSystem.INSPECTION_TYPES.STANDARD, "NONE", false, 0)
        local entry = spec.maintenanceLog[#spec.maintenanceLog]
        if entry then
            entry.conditionData.operatingHours = currentHours
            entry.conditionData.condition = 1.0
            entry.conditionData.service = 1.0
            entry.isVisible = false
        end
    end

    print(string.format("ADS: Fully reset state for '%s'.", vehicle:getFullName()))
end

function AdvancedDamageSystem.ConsoleCommands:reinitializeVehicle()
    if not g_currentMission:getIsServer() then
        local vehicle = self:getTargetVehicle()
        if vehicle then ADS_ConsoleCommandEvent.sendToServer("reinitializeVehicle", nil, nil, vehicle) end
        return
    end

    local vehicle = self:getTargetVehicle()
    if not vehicle then return end

    local ok, targetCondition = initializeVehicleConditionFromVanillaPrice(vehicle, true)
    if not ok then
        print(string.format("ADS Error: Failed to reinitialize '%s'.", vehicle:getFullName()))
        return
    end

    print(string.format(
        "ADS: Reinitialized '%s' from vanilla resale price. Target condition: %.3f, final overall condition: %.3f.",
        vehicle:getFullName(),
        targetCondition or 0,
        vehicle.spec_AdvancedDamageSystem.conditionLevel or 0
    ))
end

function AdvancedDamageSystem.ConsoleCommands:startMaintance(rawArgs, rawArgTwo)
    if not g_currentMission:getIsServer() then
        local vehicle = self:getTargetVehicle()
        if vehicle then ADS_ConsoleCommandEvent.sendToServer("startMaintance", rawArgs, rawArgTwo, vehicle) end
        return
    end
    local args = parseArguments(rawArgs, rawArgTwo)
    local vehicle = self:getTargetVehicle()
    if not vehicle then return end

    local spec = vehicle.spec_AdvancedDamageSystem
    if spec.currentState ~= AdvancedDamageSystem.STATUS.READY then
        print(string.format("ADS Error: Vehicle '%s' is already under service (%s).", vehicle:getFullName(), spec.currentState))
        return
    end

    if not args or not args[1] then
        print("ADS Error: Missing argument. Usage: ads_startService <type> [count]")
        print("Available types: inspection, maintenance, repair, overhaul")
        return
    end

    local maintenanceType = string.lower(args[1])
    local isValidType = false

    for stateName, state in pairs(AdvancedDamageSystem.STATUS) do
        if string.lower(stateName) == maintenanceType then
            isValidType = true
            maintenanceType = state
            break
        end
    end
    
    if not isValidType or maintenanceType == AdvancedDamageSystem.STATUS.READY then
        print("ADS Error: Invalid maintenance type '"..maintenanceType.."'")
        print("Available types: inspection, maintenance, repair, overhaul")
        return
    end

    local breakdownCount = tonumber(args[2]) or 1
    local optionOne, optionTwo, optionThree

    if maintenanceType == AdvancedDamageSystem.STATUS.INSPECTION then
        optionOne = AdvancedDamageSystem.INSPECTION_TYPES.STANDARD
        optionTwo = "NONE"
        optionThree = false
    elseif maintenanceType == AdvancedDamageSystem.STATUS.MAINTENANCE then
        optionOne = AdvancedDamageSystem.MAINTENANCE_TYPES.STANDARD
        optionTwo = AdvancedDamageSystem.PART_TYPES.OEM
        optionThree = false
    elseif maintenanceType == AdvancedDamageSystem.STATUS.REPAIR then
        optionOne = AdvancedDamageSystem.REPAIR_TYPES.MEDIUM
        optionTwo = AdvancedDamageSystem.PART_TYPES.OEM
        optionThree = false

        local visibleRepairableCount = 0
        local selected = 0
        for breakdownId, breakdown in pairs(vehicle:getActiveBreakdowns()) do
            local isRepairable = breakdown ~= nil and breakdown.isVisible == true
            if isRepairable then
                visibleRepairableCount = visibleRepairableCount + 1
            end

            if selected < breakdownCount and isRepairable then
                breakdown.isSelectedForRepair = true
                selected = selected + 1
            else
                breakdown.isSelectedForRepair = false
            end
        end

        if visibleRepairableCount == 0 then
            print(string.format("ADS Error: Vehicle '%s' has no visible breakdowns for repair.", vehicle:getFullName()))
            return
        end

        if selected == 0 then
            print(string.format("ADS Error: No breakdowns selected for repair on '%s'.", vehicle:getFullName()))
            return
        end
    elseif maintenanceType == AdvancedDamageSystem.STATUS.OVERHAUL then
        optionOne = AdvancedDamageSystem.OVERHAUL_TYPES.STANDARD
        optionTwo = "NONE"
        optionThree = false
    end

    vehicle:initService(maintenanceType, AdvancedDamageSystem.WORKSHOP.OWN, optionOne, optionTwo, optionThree)

    if spec.currentState == maintenanceType and (spec.maintenanceTimer or 0) > 0 then
        local finishTime, days = vehicle:getServiceFinishTime()
        print(string.format("ADS: Started '%s' for '%s'. Remaining time: %.1f sec. Finishes in %d day(s) at %.2f.", maintenanceType, vehicle:getFullName(), spec.maintenanceTimer / 1000, days or 0, finishTime or 0))
    else
        print(string.format("ADS Error: Failed to start '%s' for '%s'.", maintenanceType, vehicle:getFullName()))
    end
end

function AdvancedDamageSystem.ConsoleCommands:finishMaintance()
    if not g_currentMission:getIsServer() then
        local vehicle = self:getTargetVehicle()
        if vehicle then ADS_ConsoleCommandEvent.sendToServer("finishMaintance", nil, nil, vehicle) end
        return
    end
    local vehicle = self:getTargetVehicle()
    if not vehicle then return end

    local spec = vehicle.spec_AdvancedDamageSystem
    if spec.currentState == AdvancedDamageSystem.STATUS.READY then
        print(string.format("ADS: Vehicle '%s' is not under service.", vehicle:getFullName()))
        return
    end

    local currentState = spec.currentState
    local remainingMs = math.max(spec.maintenanceTimer or 0, 0)
    local missionInfo = g_currentMission and g_currentMission.missionInfo or nil
    local timeScale = (missionInfo and missionInfo.timeScale) or 1
    if timeScale <= 0 then
        timeScale = 1
    end
    local forceDt = math.max(math.ceil(remainingMs / timeScale) + 1, 1)

    local previousWorkshopOpen = nil
    if ADS_Main ~= nil then
        previousWorkshopOpen = ADS_Main.isWorkshopOpen
        ADS_Main.isWorkshopOpen = true
    end

    local ok, err = pcall(function()
        vehicle:processService(forceDt)
    end)

    if ADS_Main ~= nil and previousWorkshopOpen ~= nil then
        ADS_Main.isWorkshopOpen = previousWorkshopOpen
    end

    if not ok then
        print(string.format("ADS Error: Failed to force-finish service for '%s': %s", vehicle:getFullName(), tostring(err)))
        return
    end

    if spec.currentState ~= AdvancedDamageSystem.STATUS.READY then
        -- Fallback for rare edge-cases where processService didn't finalize.
        spec.pendingProgressElapsedTime = spec.pendingProgressTotalTime or 0
        spec.maintenanceTimer = 0
        vehicle:completeService()
    end

    print(string.format("ADS: Service '%s' force-finished for '%s'.", currentState, vehicle:getFullName()))
end

function AdvancedDamageSystem.ConsoleCommands:getServiceState()
    local vehicle = self:getTargetVehicle()
    if not vehicle then return end

    local spec = vehicle.spec_AdvancedDamageSystem
    local progressPercent = 0
    if (spec.pendingProgressTotalTime or 0) > 0 then
        progressPercent = math.floor(math.max(0, math.min((spec.pendingProgressElapsedTime or 0) / spec.pendingProgressTotalTime, 1)) * 100)
    end

    local selectedForRepairCount = 0
    local activeBreakdownsCount = 0
    for _, breakdown in pairs(spec.activeBreakdowns or {}) do
        activeBreakdownsCount = activeBreakdownsCount + 1
        if breakdown ~= nil and breakdown.isSelectedForRepair then
            selectedForRepairCount = selectedForRepairCount + 1
        end
    end

    print("--- ADS Service State ---")
    print(string.format("Vehicle: %s", vehicle:getFullName()))
    print(string.format("State: current=%s planned=%s workshop=%s", tostring(spec.currentState), tostring(spec.plannedState), tostring(spec.workshopType)))
    print(string.format("Timer: maintenanceTimer=%.0fms elapsed=%.0fms total=%.0fms progress=%d%% stepIndex=%d",
        spec.maintenanceTimer or 0, spec.pendingProgressElapsedTime or 0, spec.pendingProgressTotalTime or 0, progressPercent, spec.pendingProgressStepIndex or 0))
    print(string.format("Options: optionOne=%s optionTwo=%s optionThree=%s price=%s",
        tostring(spec.serviceOptionOne), tostring(spec.serviceOptionTwo), tostring(spec.serviceOptionThree), tostring(spec.pendingServicePrice)))
    local pendingOverhaulSystemsCount = 0
    for _, _ in pairs(spec.pendingOverhaulSystemTarget or {}) do
        pendingOverhaulSystemsCount = pendingOverhaulSystemsCount + 1
    end

    print(string.format("Targets: serviceStart=%s serviceTarget=%s overhaulSystems=%d",
        tostring(spec.pendingMaintenanceServiceStart), tostring(spec.pendingMaintenanceServiceTarget), pendingOverhaulSystemsCount))
    print(string.format("Levels: service=%.4f condition=%.4f", spec.serviceLevel or 0, spec.conditionLevel or 0))
    print(string.format("Queues: selected=%d inspection=%d repair=%d", #(spec.pendingSelectedBreakdowns or {}), #(spec.pendingInspectionQueue or {}), #(spec.pendingRepairQueue or {})))
    print(string.format("Breakdowns: active=%d selectedForRepair=%d", activeBreakdownsCount, selectedForRepairCount))

    if #(spec.pendingSelectedBreakdowns or {}) > 0 then
        print("pendingSelectedBreakdowns: " .. table.concat(spec.pendingSelectedBreakdowns, ", "))
    end
    if #(spec.pendingInspectionQueue or {}) > 0 then
        print("pendingInspectionQueue: " .. table.concat(spec.pendingInspectionQueue, ", "))
    end
    if #(spec.pendingRepairQueue or {}) > 0 then
        print("pendingRepairQueue: " .. table.concat(spec.pendingRepairQueue, ", "))
    end
end

function AdvancedDamageSystem.ConsoleCommands:showServiceLog(rawArgs)
    local vehicle = self:getTargetVehicle()
    if not vehicle then return end

    local spec = vehicle.spec_AdvancedDamageSystem
    local log = spec.maintenanceLog or {}
    local args = parseArguments(rawArgs)

    if #log == 0 then
        print("ADS: Service log is empty.")
        return
    end

    local function formatDate(date)
        if date == nil then
            return "n/a"
        end
        return string.format("%02d/%02d/%04d", date.day or 0, date.month or 0, date.year or 0)
    end

    local function formatList(value)
        if value == nil or #value == 0 then
            return "-"
        end
        return table.concat(value, ", ")
    end

    local function printLogEntry(index, entry, verbose)
        local cond = entry.conditionData or {}
        local selectedBreakdowns = cond.selectedBreakdowns or {}
        local activeBreakdownsCount = 0
        for _, _ in pairs(cond.activeBreakdowns or {}) do
            activeBreakdownsCount = activeBreakdownsCount + 1
        end

        print(string.format("[%d] id=%s type=%s date=%s price=%s visible=%s completed=%s",
            index, tostring(entry.id), tostring(entry.type), formatDate(entry.date), tostring(entry.price), tostring(entry.isVisible), tostring(entry.isCompleted ~= false)))
        print(string.format("    options: one=%s two=%s three=%s location=%s",
            tostring(entry.optionOne), tostring(entry.optionTwo), tostring(entry.optionThree), tostring(entry.location)))

        if verbose then
            print(string.format("    conditionData: year=%s opHours=%s age=%s condition=%s service=%s reliability=%s maintainability=%s",
                tostring(cond.year), tostring(cond.operatingHours), tostring(cond.age), tostring(cond.condition), tostring(cond.service), tostring(cond.reliability), tostring(cond.maintainability)))
            local systemsCount = 0
            for _, _ in pairs(cond.systems or {}) do
                systemsCount = systemsCount + 1
            end
            print(string.format("    conditionData: batterySoc=%s systems=%d",
                tostring(cond.batterySoc), systemsCount))
            print(string.format("    conditionData: activeBreakdowns=%d selectedBreakdowns=%d", activeBreakdownsCount, #selectedBreakdowns))
            print("    selectedBreakdowns: " .. formatList(selectedBreakdowns))
        end
    end

    if args ~= nil and args[1] ~= nil then
        local index = tonumber(args[1])
        if index == nil or index < 1 or index > #log then
            print(string.format("ADS Error: Invalid log index '%s'. Valid range: 1..%d", tostring(args[1]), #log))
            return
        end

        print(string.format("--- ADS Service Log Entry %d/%d ---", index, #log))
        printLogEntry(index, log[index], true)
        return
    end

    print(string.format("--- ADS Service Log (%d entries) ---", #log))
    for i, entry in ipairs(log) do
        printLogEntry(i, entry, false)
    end
end

function AdvancedDamageSystem.ConsoleCommands:getDebugVehicleInfo(rawArgs)
    local args = parseArguments(rawArgs)
    local vehicle = self:getTargetVehicle()
    if not vehicle then return end
    
    local spec = vehicle.spec_AdvancedDamageSystem
    local motor = vehicle:getMotor()

    local storeItem = g_storeManager:getItemByXMLFilename(vehicle.configFileName)
    print("--- Vehicle Debug Info ---")
    print(string.format("RawBrand: %s", g_brandManager:getBrandByIndex(vehicle:getBrand()).name))
    print(string.format("Name: %s", vehicle:getFullName()))
    print(string.format("Type/Category: %s/%s", vehicle.type.name, storeItem.categoryName))
    print(string.format("Property state: %s", vehicle.propertyState))
    print(string.format("Transmission: %s, %s, %s", motor.minForwardGearRatio, motor.gearType, motor.groupType))
    print(string.format("ADS transmission type: %s", tostring(vehicle:getTransmissionType())))
    print(string.format("XML/shop transmission name: %s", tostring(AdvancedDamageSystem.getTransmissionNameFromXML(vehicle))))

    local hasTurboBaseSound = false
    local hasTurboCurrentConfigSound = false
    local hasTurboAnyConfigSound = false
    local hasTurboLoadedSample = false
    local turboMotorConfigKey = "-"
    local turboConfigIndices = {}
    local motorConfigCount = 0

    if vehicle.xmlFile ~= nil and vehicle.xmlFile.hasProperty ~= nil then
        hasTurboBaseSound = vehicle.xmlFile:hasProperty("vehicle.motorized.sounds.blowOffValve")

        local motorConfigIndex = 1
        if vehicle.configurations ~= nil and vehicle.configurations.motor ~= nil then
            motorConfigIndex = math.max(tonumber(vehicle.configurations.motor) or 1, 1)
        end

        turboMotorConfigKey = string.format("vehicle.motorized.motorConfigurations.motorConfiguration(%d)", motorConfigIndex - 1)
        hasTurboCurrentConfigSound = vehicle.xmlFile:hasProperty(turboMotorConfigKey .. ".sounds.blowOffValve")

        local maxScanCount = 64
        for idx = 0, maxScanCount - 1 do
            local cfgKey = string.format("vehicle.motorized.motorConfigurations.motorConfiguration(%d)", idx)
            if not vehicle.xmlFile:hasProperty(cfgKey) then
                break
            end

            motorConfigCount = motorConfigCount + 1
            if vehicle.xmlFile:hasProperty(cfgKey .. ".sounds.blowOffValve") then
                hasTurboAnyConfigSound = true
                table.insert(turboConfigIndices, tostring(idx + 1))
            end
        end
    end

    local spec_motorized = vehicle.spec_motorized
    if spec_motorized ~= nil and spec_motorized.samples ~= nil then
        hasTurboLoadedSample = spec_motorized.samples.blowOffValve ~= nil
    end

    local turboConfigList = (#turboConfigIndices > 0) and table.concat(turboConfigIndices, ",") or "-"
    local hasTurbo = hasTurboBaseSound or hasTurboCurrentConfigSound or hasTurboAnyConfigSound or hasTurboLoadedSample
    print(string.format(
        "Turbo detect: %s | base=%s | cfgCurrent=%s | cfgAny=%s (%s/%d) | sample=%s | motorCfgKey=%s",
        tostring(hasTurbo),
        tostring(hasTurboBaseSound),
        tostring(hasTurboCurrentConfigSound),
        tostring(hasTurboAnyConfigSound),
        turboConfigList,
        motorConfigCount,
        tostring(hasTurboLoadedSample),
        tostring(turboMotorConfigKey)
    ))

    for _, entry in ipairs(spec.maintenanceLog) do
        for _, breakdown in pairs(entry.conditionData.selectedBreakdowns) do
            print(breakdown)
        end
    end

    if vehicle.spec_attacherJoints and vehicle.spec_attacherJoints.attachedImplements then
        for _, v in pairs(vehicle.spec_attacherJoints.attachedImplements) do
            if v.object.speedLimit ~= nil then
                print(v.object:getFullName() .. " " .. v.object.speedLimit)
            end
	    end
    end

    if args and args[1] then
        print("--------------------------")

        if vehicle.type and vehicle.type.specializationNames then
            local specNamesCopy = {}
            for _, specName in ipairs(vehicle.type.specializationNames) do
                table.insert(specNamesCopy, specName)
            end
            
            table.sort(specNamesCopy)
            
            print("Attached Specializations (" .. #specNamesCopy .. " total):")
            for i, specName in ipairs(specNamesCopy) do
                print(string.format("  %d. %s", i, specName))
            end
        else
            print("No specializations found for this vehicle type.")
        end
        
        print("--------------------------")
    end
end

function AdvancedDamageSystem.ConsoleCommands:setDirtAmount(rawArgs)
    if not g_currentMission:getIsServer() then
        local vehicle = self:getTargetVehicle()
        if vehicle then ADS_ConsoleCommandEvent.sendToServer("setDirtAmount", rawArgs, nil, vehicle) end
        return
    end
    local vehicle = self:getTargetVehicle()
    if not vehicle then
        print("ADS Error: No target vehicle found. Please enter a vehicle.")
        return 
    end

    if vehicle.spec_washable == nil then
        print(string.format("ADS Error: Vehicle '%s' is not washable.", vehicle:getFullName()))
        return
    end

    local args = parseArguments(rawArgs)
    
    if not args or not args[1] then
        print("ADS Error: Missing argument. Usage: ads_setDirtAmount <amount>")
        print("Please provide a dirt amount between 0.0 (clean) and 1.0 (fully dirty).")
        return
    end

    local value = tonumber(args[1])
    if value == nil or value < 0 or value > 1 then
        print("ADS Error: Invalid value. Please provide a number between 0.0 and 1.0.")
        return
    end
    
    vehicle:setDirtAmount(value)
    
    print(string.format("ADS: Set Dirt amount for '%s' to %.2f.", vehicle:getFullName(), value))
end

function AdvancedDamageSystem.ConsoleCommands:setFuelLevel(rawArgs)
    if not g_currentMission:getIsServer() then
        local vehicle = self:getTargetVehicle()
        if vehicle then ADS_ConsoleCommandEvent.sendToServer("setFuelLevel", rawArgs, nil, vehicle) end
        return
    end
    local vehicle = self:getTargetVehicle()
    if not vehicle then
        return
    end

    local args = parseArguments(rawArgs)
    if not args or not args[1] then
        print("ADS Error: Usage: ads_setFuelLevel <value>")
        print("Value: 0.0..1.0 or 0..100 (percent)")
        print("Example: ads_setFuelLevel 0.25")
        print("Example: ads_setFuelLevel 25")
        return
    end

    local inputValue = tonumber(args[1])
    if inputValue == nil then
        print("ADS Error: Invalid value. Expected number.")
        return
    end

    if inputValue > 1 then
        if inputValue <= 100 then
            inputValue = inputValue / 100
        else
            print("ADS Error: Value must be 0.0..1.0 or 0..100.")
            return
        end
    end

    if inputValue < 0 or inputValue > 1 then
        print("ADS Error: Value must be between 0.0 and 1.0 (or 0..100%).")
        return
    end

    local fillUnitIndex, fillType = getPrimaryFuelConsumerInfo(vehicle)
    if fillUnitIndex == nil or fillType == nil then
        print(string.format("ADS Error: Fuel consumer not found for '%s'.", vehicle:getFullName()))
        return
    end

    local capacity = tonumber(vehicle:getFillUnitCapacity(fillUnitIndex)) or 0
    if capacity <= 0 then
        print(string.format("ADS Error: Invalid fuel capacity for '%s' (fillUnit %s).", vehicle:getFullName(), tostring(fillUnitIndex)))
        return
    end

    local currentLevel = tonumber(vehicle:getFillUnitFillLevel(fillUnitIndex)) or 0
    local targetLevel = math.clamp(capacity * inputValue, 0, capacity)
    local delta = targetLevel - currentLevel

    if math.abs(delta) > 0.0001 then
        vehicle:addFillUnitFillLevel(vehicle:getOwnerFarmId(), fillUnitIndex, delta, fillType, ToolType.UNDEFINED)
    end

    local resultLevel = tonumber(vehicle:getFillUnitFillLevel(fillUnitIndex)) or targetLevel
    local resultRatio = resultLevel / math.max(capacity, 0.0001)
    print(string.format(
        "ADS: Fuel level set on '%s' -> %.1f / %.1f L (%.1f%%), fillType=%s, fillUnit=%s",
        vehicle:getFullName(),
        resultLevel,
        capacity,
        resultRatio * 100,
        tostring(fillType),
        tostring(fillUnitIndex)
    ))
end

function AdvancedDamageSystem.ConsoleCommands:setHorsePower(rawArgs)
    if not g_currentMission:getIsServer() then
        local vehicle = self:getTargetVehicle()
        if vehicle then ADS_ConsoleCommandEvent.sendToServer("setHorsePower", rawArgs, nil, vehicle) end
        return
    end

    local vehicle = self:getTargetVehicle()
    if not vehicle then
        return
    end

    local args = parseArguments(rawArgs)
    if not args or not args[1] then
        print("ADS Error: Usage: ads_setHorsePower <hp>")
        return
    end

    local targetHp = tonumber(args[1])
    if targetHp == nil or targetHp <= 0 then
        print("ADS Error: Horsepower must be a positive number.")
        return
    end

    local motor = vehicle.getMotor ~= nil and vehicle:getMotor() or nil
    if motor == nil or motor.torqueCurve == nil or motor.torqueCurve.keyframes == nil then
        print(string.format("ADS Error: Vehicle '%s' has no editable motor torque curve.", vehicle:getFullName()))
        return
    end

    local currentPeakKw = tonumber(motor.peakMotorPower) or 0
    if currentPeakKw <= 0 then
        print(string.format("ADS Error: Vehicle '%s' has invalid peak motor power.", vehicle:getFullName()))
        return
    end

    local targetPeakKw = targetHp / 1.36
    local scale = targetPeakKw / currentPeakKw
    local scaledKeys = 0

    for _, keyframe in ipairs(motor.torqueCurve.keyframes) do
        if type(keyframe) == "table" then
            if keyframe[1] ~= nil then
                keyframe[1] = keyframe[1] * scale
                scaledKeys = scaledKeys + 1
            elseif keyframe.value ~= nil then
                keyframe.value = keyframe.value * scale
                scaledKeys = scaledKeys + 1
            end
        end
    end

    if scaledKeys == 0 then
        print(string.format("ADS Error: Failed to scale torque curve for '%s'.", vehicle:getFullName()))
        return
    end

    motor.peakMotorTorque = motor.torqueCurve:getMaximum()
    motor.peakMotorPower = 0
    motor.peakMotorPowerRotSpeed = 0

    local numKeyFrames = #motor.torqueCurve.keyframes
    if numKeyFrames >= 2 then
        for i = 2, numKeyFrames do
            local v0 = motor.torqueCurve.keyframes[i - 1]
            local v1 = motor.torqueCurve.keyframes[i]
            local torque0 = motor.torqueCurve:getFromKeyframes(v0, v0, i - 1, i - 1, 0)
            local torque1 = motor.torqueCurve:getFromKeyframes(v1, v1, i, i, 0)
            local rpm
            local torque

            if math.abs(torque0 - torque1) > 0.0001 then
                rpm = (v1.time * torque0 - v0.time * torque1) / (2.0 * (torque0 - torque1))
                rpm = math.min(math.max(rpm, v0.time), v1.time)
                torque = motor.torqueCurve:getFromKeyframes(v0, v1, i - 1, i, (v1.time - rpm) / (v1.time - v0.time))
            else
                rpm = v0.time
                torque = torque0
            end

            local power = torque * rpm
            if power > motor.peakMotorPower then
                motor.peakMotorPower = power
                motor.peakMotorPowerRotSpeed = rpm
            end
        end

        motor.peakMotorPower = motor.peakMotorPower * math.pi / 30
        motor.peakMotorPowerRotSpeed = motor.peakMotorPowerRotSpeed * math.pi / 30
    elseif numKeyFrames == 1 then
        local v = motor.torqueCurve.keyframes[1]
        local rotSpeed = v.time * math.pi / 30
        local torque = motor.torqueCurve:getFromKeyframes(v, v, 1, 1, 0)
        motor.peakMotorPower = rotSpeed * torque
        motor.peakMotorPowerRotSpeed = rotSpeed
    end

    if vehicle.updateMotorProperties ~= nil then
        vehicle:updateMotorProperties()
    end

    local function refreshAttachedPeakPower(rootVehicle)
        if rootVehicle == nil or rootVehicle.getAttachedImplements == nil then
            return
        end

        local rootPeakMotorPower = rootVehicle.getMotor ~= nil and rootVehicle:getMotor().peakMotorPower or math.huge
        for _, implement in pairs(rootVehicle:getAttachedImplements()) do
            local object = implement ~= nil and implement.object or nil
            if object ~= nil then
                if object.spec_powerConsumer ~= nil then
                    object.spec_powerConsumer.sourceMotorPeakPower = rootPeakMotorPower
                end
                refreshAttachedPeakPower(object)
            end
        end
    end

    refreshAttachedPeakPower(vehicle)

    local specMotorized = vehicle.spec_motorized
    if specMotorized ~= nil and specMotorized.motorizedNode ~= nil and I3DUtil ~= nil and I3DUtil.wakeUpObject ~= nil then
        I3DUtil.wakeUpObject(specMotorized.motorizedNode)
    end

    print(string.format(
        "ADS: Set horsepower for '%s' to %.1f hp (was %.1f hp).",
        vehicle:getFullName(),
        (tonumber(motor.peakMotorPower) or 0) * 1.36,
        currentPeakKw * 1.36
    ))
end

function AdvancedDamageSystem.ConsoleCommands:setOperatingTime(rawArgs)
    if not g_currentMission:getIsServer() then
        local vehicle = self:getTargetVehicle()
        if vehicle then ADS_ConsoleCommandEvent.sendToServer("setOperatingTime", rawArgs, nil, vehicle) end
        return
    end

    local vehicle = self:getTargetVehicle()
    if not vehicle then
        return
    end

    local args = parseArguments(rawArgs)
    if not args or not args[1] then
        print("ADS Error: Usage: ads_setOperatingTime <hours>")
        print("Example: ads_setOperatingTime 22.1")
        return
    end

    local hours = tonumber(args[1])
    if hours == nil or hours < 0 then
        print("ADS Error: Operating time must be a number >= 0.")
        return
    end

    local operatingTimeMs = hours * 60 * 60 * 1000
    local previousOperatingTimeMs = getSyncOperatingTime(vehicle)
    local spec = vehicle.spec_AdvancedDamageSystem

    spec._allowAdsOperatingTimeWrite = true
    vehicle:setOperatingTime(operatingTimeMs, false)
    spec._allowAdsOperatingTimeWrite = false
    spec.realOperatingTime = operatingTimeMs

    if vehicle.isServer and spec.adsDirtyFlag_telemetry ~= nil then
        vehicle:raiseDirtyFlags(spec.adsDirtyFlag_telemetry)
    end

    print(string.format(
        "ADS: Operating time for '%s' changed: %.2f h -> %.2f h (%.0f ms).",
        vehicle:getFullName(),
        previousOperatingTimeMs / (60 * 60 * 1000),
        operatingTimeMs / (60 * 60 * 1000),
        operatingTimeMs
    ))
end

function AdvancedDamageSystem.ConsoleCommands:setPlowMaxForce(rawArgs)
    if not g_currentMission:getIsServer() then
        local vehicle = self:getTargetVehicle()
        if vehicle then ADS_ConsoleCommandEvent.sendToServer("setPlowMaxForce", rawArgs, nil, vehicle) end
        return
    end

    local vehicle = self:getTargetVehicle()
    if not vehicle then
        return
    end

    local args = parseArguments(rawArgs)
    if not args or not args[1] then
        print("ADS Error: Usage: ads_setPlowMaxForce <kN>")
        return
    end

    local targetMaxForce = tonumber(args[1])
    if targetMaxForce == nil or targetMaxForce < 0 then
        print("ADS Error: Max force must be a number >= 0.")
        return
    end

    local implement = nil
    if vehicle.getSelectedImplement ~= nil then
        local selectedImplement = vehicle:getSelectedImplement()
        local selectedObject = selectedImplement ~= nil and selectedImplement.object or nil
        if selectedObject ~= nil and selectedObject.spec_powerConsumer ~= nil then
            implement = selectedObject
        end
    end

    if implement == nil and vehicle.getAttachedImplements ~= nil then
        for _, attachedImplement in pairs(vehicle:getAttachedImplements()) do
            local object = attachedImplement ~= nil and attachedImplement.object or nil
            if object ~= nil and object.spec_plow ~= nil and object.spec_powerConsumer ~= nil then
                implement = object
                break
            end
        end
    end

    if implement == nil and vehicle.getAttachedImplements ~= nil then
        for _, attachedImplement in pairs(vehicle:getAttachedImplements()) do
            local object = attachedImplement ~= nil and attachedImplement.object or nil
            if object ~= nil and object.spec_powerConsumer ~= nil then
                implement = object
                break
            end
        end
    end

    if implement == nil or implement.spec_powerConsumer == nil then
        print(string.format("ADS Error: No attached plow/implement with powerConsumer found for '%s'.", vehicle:getFullName()))
        return
    end

    local specPowerConsumer = implement.spec_powerConsumer
    local previousMaxForce = tonumber(specPowerConsumer.maxForce) or 0
    specPowerConsumer.maxForce = targetMaxForce
    if specPowerConsumer.maxForceOrig ~= nil then
        specPowerConsumer.maxForceOrig = targetMaxForce
    end

    print(string.format(
        "ADS: Set maxForce for '%s' to %.2f kN (was %.2f kN).",
        implement.getFullName ~= nil and implement:getFullName() or tostring(implement.configFileName or "implement"),
        specPowerConsumer.maxForce,
        previousMaxForce
    ))
end

function AdvancedDamageSystem.ConsoleCommands:resetFactorStats()
    if not g_currentMission:getIsServer() then
        local vehicle = self:getTargetVehicle()
        if vehicle then ADS_ConsoleCommandEvent.sendToServer("resetFactorStats", nil, nil, vehicle) end
        return
    end
    local vehicle = self:getTargetVehicle()
    if not vehicle then
        return
    end

    local spec = vehicle.spec_AdvancedDamageSystem
    local factorStats = ensureFactorStats(spec, vehicle)

    for _, systemStats in pairs(factorStats) do
        if type(systemStats) == "table" then
            for key, value in pairs(systemStats) do
                if key ~= "operatingHours" and tonumber(value) ~= nil then
                    systemStats[key] = 0
                end
            end
            systemStats.total = 0
            systemStats.stress = 0
            systemStats.operatingHours = getVehicleOperatingHours(vehicle)
        end
    end

    print(string.format("ADS: Factor stats reset for '%s'.", vehicle:getFullName()))
end

function AdvancedDamageSystem.ConsoleCommands:toggleHudDebugView(rawArgs)
    local args = parseArguments(rawArgs)
    local requestedMode = args and args[1] and string.lower(tostring(args[1])) or nil
    local currentMode = tostring((ADS_Hud ~= nil and ADS_Hud.debugViewMode) or "default")
    local nextMode = "default"

    if requestedMode == nil or requestedMode == "" or requestedMode == "toggle" then
        if currentMode == "factorStats" then
            nextMode = "default"
        else
            nextMode = "factorStats"
        end
    elseif requestedMode == "default" or requestedMode == "normal" then
        nextMode = "default"
    elseif requestedMode == "stats" or requestedMode == "stat" or requestedMode == "factorstats" or requestedMode == "factor_stats" then
        nextMode = "factorStats"
    else
        print("ADS Error: Usage: ads_toggleHudDebugView [default|stats|toggle]")
        return
    end

    if ADS_Hud ~= nil then
        ADS_Hud.debugViewMode = nextMode
    end

    print(string.format("ADS: HUD debug view mode = %s", nextMode))
end

function AdvancedDamageSystem.ConsoleCommands:setExcluded(rawArgs)
    if not g_currentMission:getIsServer() then
        local vehicle = self:getTargetVehicle()
        if vehicle then ADS_ConsoleCommandEvent.sendToServer("setExcluded", rawArgs, nil, vehicle) end
        return
    end

    local vehicle = self:getTargetVehicle()
    if not vehicle then return end

    local spec = vehicle.spec_AdvancedDamageSystem
    local args = parseArguments(rawArgs)
    local rawValue = args and args[1] and string.lower(tostring(args[1])) or nil

    if rawValue == nil then
        print(string.format(
            "ADS: '%s' exclusion state: user=%s, default=%s, effective=%s. Usage: ads_setExcluded <true|false>",
            vehicle:getFullName(),
            tostring(spec.isExcludedByUser == true),
            tostring(spec.isExcludedByDefault == true),
            tostring(spec.isExcludedVehicle == true)
        ))
        return
    end

    local isExcluded
    if rawValue == "true" or rawValue == "1" or rawValue == "on" or rawValue == "yes" then
        isExcluded = true
    elseif rawValue == "false" or rawValue == "0" or rawValue == "off" or rawValue == "no" then
        isExcluded = false
    else
        print("ADS Error: Usage: ads_setExcluded <true|false>")
        return
    end

    local changed, reason = vehicle:setADSUserExcluded(isExcluded)
    if reason == "default" then
        print(string.format("ADS: '%s' is excluded automatically and cannot be changed by this command.", vehicle:getFullName()))
        return
    end

    if not changed then
        print(string.format("ADS: '%s' is already %s by the user flag.", vehicle:getFullName(), isExcluded and "excluded" or "included"))
        return
    end

    print(string.format("ADS: '%s' is now %s.", vehicle:getFullName(), isExcluded and "excluded from ADS" or "managed by ADS"))
end

function AdvancedDamageSystem.ConsoleCommands:debug()
    if not g_currentMission:getIsServer() then
        ADS_ConsoleCommandEvent.sendToServer("debug", nil, nil, nil)
        return
    end
    if ADS_Config.DEBUG then
        ADS_Config.DEBUG = false
    else
        ADS_Config.DEBUG = true
    end
end

addConsoleCommand("ads_listBreakdowns", "Lists all available breakdown IDs.", "listBreakdowns", AdvancedDamageSystem.ConsoleCommands)
addConsoleCommand("ads_addBreakdown", "Adds a breakdown. Usage: ads_addBreakdown [id] [stage]", "addBreakdown", AdvancedDamageSystem.ConsoleCommands)
addConsoleCommand("ads_removeBreakdown", "Removes a breakdown. Usage: ads_removeBreakdown [id]", "removeBreakdown", AdvancedDamageSystem.ConsoleCommands)
addConsoleCommand("ads_advanceBreakdown", "Advances a breakdown to the next stage. Usage: ads_advanceBreakdown [id]", "changeBreakdownStage", AdvancedDamageSystem.ConsoleCommands)
addConsoleCommand("ads_setCondition", "Sets condition for all enabled systems. Usage: ads_setCondition [0.0-1.0]", "setCondition", AdvancedDamageSystem.ConsoleCommands)
addConsoleCommand("ads_setSystemCondition", "Sets system condition. Usage: ads_setSystemCondition [system] [0.0-1.0]", "setSystemCondition", AdvancedDamageSystem.ConsoleCommands)
addConsoleCommand("ads_setSystemStress", "Sets system stress. Usage: ads_setSystemStress [system] [>=0.0]", "setSystemStress", AdvancedDamageSystem.ConsoleCommands)
addConsoleCommand("ads_setSystemStressMultiplier", "Sets stress accumulation multiplier. Usage: ads_setSystemStressMultiplier [>=0.0] [system]", "setSystemStressMultiplier", AdvancedDamageSystem.ConsoleCommands)
addConsoleCommand("ads_setService", "Sets vehicle service. Usage: ads_setService [0.0-1.0]", "setService", AdvancedDamageSystem.ConsoleCommands)
addConsoleCommand("ads_resetVehicle", "Resets vehicle state.", "resetVehicle", AdvancedDamageSystem.ConsoleCommands)
addConsoleCommand("ads_reinitializeVehicle", "Reinitializes vehicle from vanilla resale price logic.", "reinitializeVehicle", AdvancedDamageSystem.ConsoleCommands)
addConsoleCommand("ads_startService", "Starts service. Usage: ads_startService <type> [count]", "startMaintance", AdvancedDamageSystem.ConsoleCommands)
addConsoleCommand("ads_finishService", "Instantly finishes current service.", "finishMaintance", AdvancedDamageSystem.ConsoleCommands)
addConsoleCommand("ads_getServiceState", "Prints current service/workshop state variables.", "getServiceState", AdvancedDamageSystem.ConsoleCommands)
addConsoleCommand("ads_showServiceLog", "Shows service log. Usage: ads_showServiceLog [index]", "showServiceLog", AdvancedDamageSystem.ConsoleCommands)
addConsoleCommand("ads_getDebugVehicleInfo", "Vehicle debug info", "getDebugVehicleInfo", AdvancedDamageSystem.ConsoleCommands)
addConsoleCommand("ads_setDirtAmount", "Sets vehicle dirt amount. Usage: ads_setDirtAmount [0.0-1.0]", "setDirtAmount", AdvancedDamageSystem.ConsoleCommands)
addConsoleCommand("ads_setFuelLevel", "Sets vehicle fuel level. Usage: ads_setFuelLevel [0.0-1.0 or 0..100]", "setFuelLevel", AdvancedDamageSystem.ConsoleCommands)
addConsoleCommand("ads_setHorsePower", "Sets horsepower on current vehicle. Usage: ads_setHorsePower [hp]", "setHorsePower", AdvancedDamageSystem.ConsoleCommands)
addConsoleCommand("ads_setOperatingTime", "Sets operating time on current vehicle. Usage: ads_setOperatingTime [hours]", "setOperatingTime", AdvancedDamageSystem.ConsoleCommands)
addConsoleCommand("ads_setPlowMaxForce", "Sets maxForce on selected/attached plow. Usage: ads_setPlowMaxForce [kN]", "setPlowMaxForce", AdvancedDamageSystem.ConsoleCommands)
addConsoleCommand("ads_resetFactorStats", "Resets accumulated factor stats for current vehicle.", "resetFactorStats", AdvancedDamageSystem.ConsoleCommands)
addConsoleCommand("ads_toggleHudDebugView", "Switch debug HUD view. Usage: ads_toggleHudDebugView [default|stats|toggle]", "toggleHudDebugView", AdvancedDamageSystem.ConsoleCommands)
addConsoleCommand("ads_setExcluded", "Excludes or includes the current vehicle in ADS. Usage: ads_setExcluded <true|false>", "setExcluded", AdvancedDamageSystem.ConsoleCommands)
addConsoleCommand("ads_debug", "Enbales/disabled ADS debug", "debug", AdvancedDamageSystem.ConsoleCommands)
addConsoleCommand("ads_setConfigVar", "Sets ADS_Config variable. Usage: ads_setConfigVar <path> <value>", "setConfigVar", AdvancedDamageSystem.ConsoleCommands)
addConsoleCommand("ads_setSpecVar", "Sets ADS specialization variable on current vehicle. Usage: ads_setSpecVar <path> <value>", "setSpecVar", AdvancedDamageSystem.ConsoleCommands)
addConsoleCommand("ads_printSpecVar", "Prints ADS specialization variable on current vehicle. Usage: ads_printSpecVar <path>", "printSpecVar", AdvancedDamageSystem.ConsoleCommands)







