-- positive X -> left
-- negative X -> right
function AutoDrive.createWayPointRelativeToVehicle(vehicle, offsetX, offsetZ)
    local wayPoint = {}
    wayPoint.x, wayPoint.y, wayPoint.z = localToWorld(vehicle.components[1].node, offsetX, 0, offsetZ)
    return wayPoint
end

function AutoDrive.createWayPointRelativeToDischargeNode(vehicle, offsetX, offsetZ)
    if not vehicle.ad.isCombine or AutoDrive.getDischargeNode(vehicle) == nil then
        return AutoDrive.createWayPointRelativeToVehicle(vehicle, offsetX, offsetZ)
    end
    local wayPoint = {}
    local referenceAxis = vehicle.components[1].node
    if vehicle.components[2] ~= nil and vehicle.components[2].node ~= nil then
        referenceAxis = vehicle.components[2].node
    end
    local node = AutoDrive.getDischargeNode(vehicle)
    local worldOffsetX, worldOffsetY, worldOffsetZ = localDirectionToWorld(referenceAxis, offsetX, 0, offsetZ)
    local x, y, z = getWorldTranslation(node)
    wayPoint.x, wayPoint.y, wayPoint.z = x + worldOffsetX, y + worldOffsetY, z + worldOffsetZ
    return wayPoint
end

function AutoDrive.isTrailerInCrop(vehicle, enlargeDetectionArea)
    local widthFactor = 1
    if enlargeDetectionArea then
        widthFactor = 1.5
    end

    local trailers, trailerCount = AutoDrive.getAllUnits(vehicle)
    local trailer = trailers[trailerCount]
    local inCrop = false
    if trailer ~= nil then
        if trailer.ad == nil then
            trailer.ad = {}
        end
        ADSensor:handleSensors(trailer, 0)
        inCrop = trailer.ad.sensors.centerSensorFruit:pollInfo(true, widthFactor)
    end
    return inCrop
end

function AutoDrive.isVehicleOrTrailerInCrop(vehicle, enlargeDetectionArea)
    local widthFactor = 1
    if enlargeDetectionArea then
        widthFactor = 1.5
    end

    return AutoDrive.isTrailerInCrop(vehicle, enlargeDetectionArea) or vehicle.ad.sensors.centerSensorFruit:pollInfo(true, widthFactor)
end

function AutoDrive:checkIsConnected(toCheck, other)
    local isAttachedToMe = false
    if toCheck == nil or other == nil then
        return false
    end
    
    for _, implement in pairs(AutoDrive.getAllImplements(toCheck, true)) do
        if implement == other then
            return true
        end

        if implement.spec_baleGrab ~= nil and implement.spec_baleGrab.dynamicMountedObjects ~= nil and table.contains(implement.spec_baleGrab.dynamicMountedObjects, other) then
            return true
        end

        if implement.spec_dynamicMountAttacher ~= nil and implement.spec_dynamicMountAttacher.dynamicMountedObjects ~= nil and table.contains(implement.spec_dynamicMountAttacher.dynamicMountedObjects, other) then
            return true
        end
    end

    return isAttachedToMe
end

function AutoDrive.defineMinDistanceByVehicleType(vehicle)
    local min_distance = 1.8
    if
        vehicle.typeDesc == "combine" or vehicle.typeDesc == "harvester" or vehicle.typeName == "combineDrivable" or vehicle.typeName == "selfPropelledMower" or vehicle.typeName == "woodHarvester" or vehicle.typeName == "combineCutterFruitPreparer" or vehicle.typeName == "drivableMixerWagon" or
            vehicle.typeName == "cottonHarvester" or
            vehicle.typeName == "pdlc_claasPack.combineDrivableCrawlers"
     then
        min_distance = 6
    elseif vehicle.typeDesc == "telehandler" or vehicle.spec_crabSteering ~= nil then --If vehicle has 4 steering wheels like xerion or hardi self Propelled sprayer then also min_distance = 3;
        min_distance = 3
    elseif vehicle.typeDesc == "truck" then
        min_distance = 3
    end
    -- If vehicle is quadtrack then also min_distance = 6;
    if vehicle.spec_articulatedAxis ~= nil and vehicle.spec_articulatedAxis.rotSpeed ~= nil then
        min_distance = 6
    end
    return min_distance
end

function AutoDrive.getVehicleMaxSpeed(vehicle)
    -- 255 is the max value to prevent errors with MP sync
    if vehicle ~= nil and vehicle.spec_motorized ~= nil and vehicle.spec_motorized.motor ~= nil then
        local motor = vehicle.spec_motorized.motor
        return math.min(motor:getMaximumForwardSpeed() * 3.6, 255)
    end
    return 255
end

function AutoDrive.renameDriver(vehicle, name, sendEvent)
    if name:len() > 1 and vehicle ~= nil and vehicle.ad ~= nil then
        if sendEvent == nil or sendEvent == true then
            -- Propagating driver rename all over the network
            AutoDriveRenameDriverEvent.sendEvent(vehicle, name)
        else
            vehicle.ad.stateModule:setName(name)
        end
    end
end

-- return fillType to refuel or nil if no refuel required
--[[
ignoreFillLevel: if true the fuel type is captured of level < 90%
]]
function AutoDrive.getRequiredRefuels(vehicle, ignoreFillLevel)
    local ret = {}
    local minFillLevel = 0.90   -- to prevent cycles between different fuel fillTypes we take 90% as full level
    if vehicle ~= nil then
        local spec = vehicle.spec_motorized
        if spec ~= nil and spec.consumersByFillTypeName ~= nil then

            for fillTypeName, consumer in pairs(spec.consumersByFillTypeName) do
                local currentFillLevelPercentage = vehicle:getFillUnitFillLevelPercentage(consumer.fillUnitIndex)
                local needFuel = (currentFillLevelPercentage < AutoDrive.REFUEL_LEVEL or (ignoreFillLevel and (currentFillLevelPercentage < minFillLevel)))
                if needFuel then
                    if not table.contains(AutoDrive.nonFillableFillTypes, fillTypeName) then
                        table.insert(ret, consumer.fillType)
                    end
                end
            end
        end
    end
    return ret
end

function AutoDrive.combineIsTurning(combine)
    local cpIsTurning = AutoDrive:getIsCPTurning(combine)
    if cpIsTurning then
        -- CP turn maneuver might get noMovementTimer expired, so return here already
        return true
    end
    local aiIsTurning = false
    local rootVehicle = nil
    if combine.getRootVehicle ~= nil then
        rootVehicle = combine:getRootVehicle()
        if rootVehicle ~= nil then
            aiIsTurning = rootVehicle.getAIFieldWorkerIsTurning ~= nil and rootVehicle:getAIFieldWorkerIsTurning()
        end
    end
    local combineIsTurning = cpIsTurning or aiIsTurning

    --Check if we are close to the field borders and about to turn
    local fieldLengthInFront = AutoDrive.getLengthOfFieldInFront(combine, true, 50, 5)
    local fieldLengthBehind = math.abs(AutoDrive.getLengthOfFieldInFront(combine, false, 50, -5))

    if (fieldLengthInFront <= 20 or fieldLengthBehind <= 20) and combine.ad.noMovementTimer.elapsedTime < 5000 and not AutoDrive.getIsBufferCombine(combine) then
        combineIsTurning = true
    end

    if not combineIsTurning then --(combine.ad.driveForwardTimer:done() and (not combine:getIsBufferCombine()))
        return false
    end
    if combine.ad.noMovementTimer.elapsedTime > 3000 then
        return false
    end
    return true
end

function AutoDrive.mouseIsAtPos(position, radius)
    local x, y, _ = project(position.x, position.y + AutoDrive.drawHeight + AutoDrive.getSetting("lineHeight"), position.z)

    if g_lastMousePosX < (x + radius) and g_lastMousePosX > (x - radius) then
        if g_lastMousePosY < (y + radius) and g_lastMousePosY > (y - radius) then
            return true
        end
    end

    return false
end

function AutoDrive.isVehicleInBunkerSiloArea(vehicle)
    if not (vehicle.ad.stateModule:getCurrentMode():shouldUnloadAtTrigger() == true) then
        -- check only for bunker silo if should unload to improve performance
        return false
    end
    for _, trigger in pairs(ADTriggerManager.getUnloadTriggers()) do
        local x, y, z = getWorldTranslation(vehicle.components[1].node)
        local tx, _, tz = x, y, z + 1
        if trigger ~= nil and trigger.bunkerSiloArea ~= nil then
            local x1, z1 = trigger.bunkerSiloArea.sx, trigger.bunkerSiloArea.sz
            local x2, z2 = trigger.bunkerSiloArea.wx, trigger.bunkerSiloArea.wz
            local x3, z3 = trigger.bunkerSiloArea.hx, trigger.bunkerSiloArea.hz
            if MathUtil.hasRectangleLineIntersection2D(x1, z1, x2 - x1, z2 - z1, x3 - x1, z3 - z1, x, z, tx - x, tz - z) then
                return true
            end

            local trailers, trailerCount = AutoDrive.getAllUnits(vehicle)
            if trailerCount > 0 then
                for _, trailer in pairs(trailers) do
                    if AutoDrive.isTrailerInBunkerSiloArea(trailer, trigger) then
                        return true
                    end
                end
            end
        end
    end

    return false
end

function AutoDrive.isEditorModeEnabled()
    return (AutoDrive.getSetting("EditorMode") == AutoDrive.EDITOR_ON) or (AutoDrive.getSetting("EditorMode") == AutoDrive.EDITOR_EXTENDED)
end

function AutoDrive.isEditorShowEnabled()
    return (AutoDrive.getSetting("EditorMode") == AutoDrive.EDITOR_SHOW)
end

function AutoDrive.isInExtendedEditorMode()
    return (AutoDrive.getSetting("EditorMode") == AutoDrive.EDITOR_EXTENDED)
end

function AutoDrive.getEditorMode()
    return (AutoDrive.getSetting("EditorMode"))
end

function AutoDrive.setEditorMode(editorMode)
    AutoDrive.setSettingState("EditorMode", editorMode)
end

function AutoDrive.cycleEditMode()
    local vehicle = g_currentMission.controlledVehicle
    if g_client ~= nil and vehicle ~= nil then

        if vehicle ~= nil and vehicle.ad ~= nil then
            AutoDrive.resetMouseSelections(vehicle)
        end
        if (AutoDrive.getSetting("EditorMode") == AutoDrive.EDITOR_OFF) then
            AutoDrive.setEditorMode(AutoDrive.EDITOR_EXTENDED)
        else
            AutoDrive.setEditorMode(AutoDrive.EDITOR_OFF)
            if g_server ~= nil and g_client ~= nil and g_dedicatedServer == nil then
                -- in SP always delete color selection wayPoints if there are any
                ADGraphManager:deleteColorSelectionWayPoints()
            end
            if vehicle ~= nil and vehicle.ad ~= nil and vehicle.ad.stateModule ~= nil then
                vehicle.ad.stateModule:disableCreationMode()
            end
        end
    end
end

function AutoDrive.cycleEditorShowMode()
    local vehicle = g_currentMission.controlledVehicle

    if g_client ~= nil and vehicle ~= nil then
        if (AutoDrive.getSetting("EditorMode") == AutoDrive.EDITOR_OFF) then
            AutoDrive.setEditorMode(AutoDrive.EDITOR_SHOW)
        else
            AutoDrive.setEditorMode(AutoDrive.EDITOR_OFF)
            if vehicle ~= nil and vehicle.ad ~= nil and vehicle.ad.stateModule ~= nil then
                vehicle.ad.stateModule:disableCreationMode()
            end
        end
    end
end

function AutoDrive.getSelectedWorkTool(vehicle)
    local selectedWorkTool = nil

    for _, implement in pairs(AutoDrive.getAllImplements(vehicle)) do
        if implement.getIsSelected ~= nil and implement:getIsSelected() then
            selectedWorkTool = implement
        end
    end

    return selectedWorkTool
end

function AutoDrive.getVehicleLeadingEdge(vehicle)
    local leadingEdge = 0
    local implements = AutoDrive.getAllImplements(vehicle)
    for _, implement in pairs(implements) do
        local implementX, implementY, implementZ = getWorldTranslation(implement.components[1].node)
        local _, _, diffZ = worldToLocal(vehicle.components[1].node, implementX, implementY, implementZ)
        if diffZ > 0 and implement.size.length ~= nil then                    
            leadingEdge = math.max(leadingEdge, diffZ + (implement.size.length / 2) - (vehicle.size.length / 2))
        end
    end
    return leadingEdge
end

function AutoDrive.getAllImplements(vehicle, includeVehicle)
    local allImp = {}
    
    if vehicle ~= nil and vehicle.getAttachedImplements and #vehicle:getAttachedImplements() > 0 then
        
        local function addAllAttached(obj)
            if obj.getAttachedImplements ~= nil then
                for _, imp in pairs(obj:getAttachedImplements()) do
                    addAllAttached(imp.object)
                    table.insert(allImp, imp.object)
                end
            end
        end

        addAllAttached(vehicle)
    end

    if includeVehicle then
        table.insert(allImp, vehicle)
    end

    return allImp
end

function AutoDrive.foldAllImplements(vehicle)
    local implements = AutoDrive.getAllImplements(vehicle, true)
    for _, implement in pairs(implements) do
        local spec = implement.spec_foldable
        if implement.spec_foldable ~= nil then
            local allowed = implement:getToggledFoldDirection() ~= spec.turnOnFoldDirection
            if allowed then
                Foldable.actionControllerFoldEvent(implement, -1)
            end
        end
    end
end

function AutoDrive.getAllImplementsFolded(vehicle)
    local implements = AutoDrive.getAllImplements(vehicle, true)
    for _, implement in pairs(implements) do
        if not AutoDrive.isVehicleFolded(implement) then
            return false
        end
    end

    return true
end

function AutoDrive.isVehicleFolded(vehicle)
    local spec = vehicle.spec_foldable
    if spec ~= nil and #spec.foldingParts > 0 then
        return spec.turnOnFoldDirection == -1 and spec.foldAnimTime >= 0.99 or spec.turnOnFoldDirection == 1 and spec.foldAnimTime <= 0.01
    end
    
    return true
end

-- set or delete park destination for selected vehicle, tool from user input action, client mode!
function AutoDrive.setActualParkDestination(vehicle)
    local actualParkDestination = -1
    local selectedWorkTool = nil

    if vehicle ~= nil and vehicle.ad ~= nil and vehicle.ad.stateModule ~= nil and vehicle.ad.stateModule:getFirstMarker() ~= nil then
        local firstMarkerID = vehicle.ad.stateModule:getFirstMarkerId()
        if firstMarkerID > 0 then
            local mapMarker = ADGraphManager:getMapMarkerById(firstMarkerID)
            -- do not allow to set debug marker as park destination
            if mapMarker ~= nil and mapMarker.isADDebug ~= true then
                selectedWorkTool = AutoDrive.getSelectedWorkTool(vehicle)

                if selectedWorkTool == nil then
                    -- no attachment selected, so use the vehicle itself
                    selectedWorkTool = vehicle
                end

                if selectedWorkTool ~= nil then
                    if AutoDrive.isInExtendedEditorMode() and AutoDrive.leftCTRLmodifierKeyPressed and not AutoDrive.leftALTmodifierKeyPressed then
                        -- assign park destination
                        if vehicle.advd ~= nil then
                            vehicle.advd:setParkDestination(selectedWorkTool, firstMarkerID)
                        end

                        -- on client sendMessage is not allowed, so add the message to ADMessagesManager to show it
                        local messageText = "$l10n_AD_parkVehicle_selected; %s"
                        local messageArg = vehicle.ad.stateModule:getFirstMarker().name
                        -- localization
                        messageText = AutoDrive.localize(messageText)
                        -- formatting
                        messageText = string.format(messageText, messageArg)
                        ADMessagesManager:addMessage(vehicle, ADMessagesManager.messageTypes.INFO, messageText, 5000)
                        
                    elseif AutoDrive.isInExtendedEditorMode() and not AutoDrive.leftCTRLmodifierKeyPressed and AutoDrive.leftALTmodifierKeyPressed then
                        -- delete park destination
                        if vehicle.advd ~= nil then
                            vehicle.advd:setParkDestination(selectedWorkTool, -1)
                        end

                        -- on client sendMessage is not allowed, so add the message to ADMessagesManager to show it
                        local messageText = "$l10n_AD_parkVehicle_deleted; %s"
                        local messageArg = vehicle.ad.stateModule:getFirstMarker().name
                        -- localization
                        messageText = AutoDrive.localize(messageText)
                        -- formatting
                        messageText = string.format(messageText, messageArg)
                        ADMessagesManager:addMessage(vehicle, ADMessagesManager.messageTypes.INFO, messageText, 5000)
                    end
                end
            end
        end
    end
end

-- MP: Important! vehicle:getIsEntered() is not working as expected on server!
-- This is the alternative MP approach
function AutoDrive:getIsEntered(vehicle)
    local user = nil
    if g_dedicatedServer ~= nil and vehicle ~= nil and g_currentMission.userManager ~= nil and g_currentMission.userManager.getUserByConnection ~= nil and vehicle.getOwner ~= nil then
        -- MP
        user = g_currentMission.userManager:getUserByConnection(vehicle:getOwner())
    else
        -- SP
        if vehicle ~= nil and vehicle.getIsEntered ~= nil then
            if vehicle.getIsControlled ~= nil then
                return vehicle:getIsEntered() or vehicle:getIsControlled()
            else
                return vehicle:getIsEntered()
            end
        end
    end
    return user ~= nil
end

function AutoDrive:getColorKeyNames()
    local colorKeyNames = {}
	for k, v in pairs(AutoDrive.colors) do
		local tagName = string.format("%s",k)
        table.insert(colorKeyNames, tagName)
    end
    return colorKeyNames
end

function AutoDrive:getColorAssignment(colorKey)
    if AutoDrive.currentColors[colorKey] ~= nil then
        local r = AutoDrive.currentColors[colorKey][1]
        local g = AutoDrive.currentColors[colorKey][2]
        local b = AutoDrive.currentColors[colorKey][3]
        local a = AutoDrive.currentColors[colorKey][4]
        return {r, g, b, a}
    else
        return {AutoDrive.currentColors.ad_color_default[1], AutoDrive.currentColors.ad_color_default[2], AutoDrive.currentColors.ad_color_default[3], AutoDrive.currentColors.ad_color_default[4]}
    end
end

function AutoDrive:setColorAssignment(colorKey, r, g, b, a)
    if AutoDrive.currentColors[colorKey] ~= nil then
        AutoDrive.currentColors[colorKey][1] = r
        AutoDrive.currentColors[colorKey][2] = g
        AutoDrive.currentColors[colorKey][3] = b
        if a ~= nil then
            AutoDrive.currentColors[colorKey][4] = a
        end
    end
end

function AutoDrive:resetColorAssignment(colorKey, all)
    if all ~= nil and all == true then
        AutoDrive.currentColors = {}
        for k, v in pairs(AutoDrive.colors) do
            AutoDrive.currentColors[k] = {}
            for i = 1, 4 do
                AutoDrive.currentColors[k][i] = AutoDrive.colors[k][i]
            end
        end
    elseif AutoDrive.currentColors[colorKey] ~= nil then
        for i = 1, 4 do
            AutoDrive.currentColors[colorKey][i] = AutoDrive.colors[colorKey][i]
        end
    end
end

-- return the vehicle which can be AD controlled
function AutoDrive.getADFocusVehicle(debug)
	local vehicle = nil
    if AutoDrive.aiFrameOpen and AutoDrive.aiFrameVehicle ~= nil and AutoDrive.aiFrameVehicle.ad ~= nil and AutoDrive.aiFrameVehicle.ad.stateModule ~= nil then
        vehicle = AutoDrive.aiFrameVehicle
    elseif g_currentMission.controlledVehicle ~= nil and g_currentMission.controlledVehicle.ad ~= nil and g_currentMission.controlledVehicle.ad.stateModule ~= nil then
        vehicle = g_currentMission.controlledVehicle
    end
    return vehicle
end

function AutoDrive.getSupportedFillTypesOfAllUnitsAlphabetically(vehicle)
    local supportedFillTypes = {}
    local autoLoadFillTypes = nil -- AutoLoad - TODO: return the correct fillTypes

    if vehicle ~= nil then
        local trailers, _ = AutoDrive.getAllUnits(vehicle)
        for trailerIndex, trailer in ipairs(trailers) do
            if AutoDrive:hasAL(trailer) then
                -- AutoLoad - TODO: return the correct fillTypes
                autoLoadFillTypes = AutoDrive:getALFillTypes(trailer)
            else
                if trailer.getFillUnits ~= nil then
                    for fillUnitIndex, _ in pairs(trailer:getFillUnits()) do
                        if trailer.getFillUnitSupportedFillTypes ~= nil then
                            for fillType, supported in pairs(trailer:getFillUnitSupportedFillTypes(fillUnitIndex)) do
                                
                                if trailerIndex == 1 then -- hide fuel types for 1st vehicle
                                    local fillTypeName = g_fillTypeManager:getFillTypeNameByIndex(fillType)
                                    if table.contains(AutoDrive.fuelFillTypes, fillTypeName) then
                                        supported = false
                                    end
                                end
                                if supported then
                                    local fillTypeName = g_fillTypeManager:getFillTypeNameByIndex(fillType)
                                    table.insert(supportedFillTypes, fillType)
                                end
                            end
                        end
                    end
                end
            end
        end
    end

	local sort_func = function(a, b)
        a = tostring(g_fillTypeManager:getFillTypeByIndex(a).title):lower()
        b = tostring(g_fillTypeManager:getFillTypeByIndex(b).title):lower()
        local patt = "^(.-)%s*(%d+)$"
        local _, _, col1, num1 = a:find(patt)
        local _, _, col2, num2 = b:find(patt)
        if (col1 and col2) and col1 == col2 then
            return tonumber(num1) < tonumber(num2)
        end
        return a < b
    end

    if supportedFillTypes and #supportedFillTypes > 0 then
        table.sort(supportedFillTypes, sort_func)
    end

    return supportedFillTypes
end
