local vehiclesWithPaintjob = {}

addEventHandler("onClientElementStreamIn", root, function()
    if getElementType(source) == "vehicle" then
        local paintJob = getElementData(source, "vehicle:paintjob")
        
        if paintJob ~= 0 then
            addVehiclePaintjob(source, paintJob)
        end
    end
end)

function switchPaintJob(el_data_key, new_data)
    if (getElementType(source) == "vehicle") then
        if (el_data_key == "vehicle:paintjob") then
            if new_data ~= false then
                for i,v in ipairs(getElementsByType("vehicle")) do
                    if v == source then
                        addVehiclePaintjob(v, tonumber(new_data))
                    end
                end
            end
        end
    end
end
addEventHandler("onClientElementDataChange", root, switchPaintJob)

addEventHandler("onClientElementStreamOut", root, function()
    if getElementType(source) == "vehicle" then
        if getElementData(source, "vehicle:id") then
            if getElementData(source, "vehicle:paintjob") then
                removeVehiclePaintjob(source)
            end
        end
    end
end)

addEventHandler("onClientElementDestroy", root, function()
    if getElementType(source) == "vehicle" then
        if getElementData(source, "vehicle:id") then
            local isVehicleHavePaintjob = getElementData(source, "vehicle:paintjob")
        
            if isVehicleHavePaintjob ~= 0 then
                removeVehiclePaintjob(source)
            end
        end
    end
end)

paintJobs = {}

function loadPaintJobs()
    for i = 1, 15 do
        paintJobs[i] = dxCreateTexture("files/"..i..".png")
    end
end
loadPaintJobs()

function addVehiclePaintjob(vehicle, paintjobID)
    if vehicle and paintjobID then
        if getElementData(vehicle, "vehicle:id") then
                removeVehiclePaintjob(vehicle)
            
                vehiclesWithPaintjob[vehicle] = {}
                vehiclesWithPaintjob[vehicle][1] = dxCreateShader("files/textureChanger.fx", 0, 100, false, "vehicle")
            
            if vehiclesWithPaintjob[vehicle][1] and paintJobs[paintjobID] then
                dxSetShaderValue(vehiclesWithPaintjob[vehicle][1], "TEXTURE", paintJobs[paintjobID])
                engineApplyShaderToWorldTexture(vehiclesWithPaintjob[vehicle][1], "*vehiclegrunge256*", vehicle)
                engineApplyShaderToWorldTexture ( vehiclesWithPaintjob[vehicle][1], "?emap*", vehicle)
            end
        end
    end
end

function removeVehiclePaintjob(vehicle)
    if vehicle then
        if vehiclesWithPaintjob[vehicle] then
            local paintjobID = getElementData(vehicle, "vehicle:paintjob")
            if not paintjobID then return end
            destroyElement(vehiclesWithPaintjob[vehicle][1])
            vehiclesWithPaintjob[vehicle] = nil
        end
    end
end