local vehicleDefaults = {}

local function ApplyVehicleRoofboxHandling(vehicle)
    if not Config.handling.enabled then
        return
    end
    
    local vecCentreOfMassOffset = GetVehicleHandlingVector(vehicle, 'CHandlingData', 'vecCentreOfMassOffset')
    local fInitialDragCoeff = GetVehicleHandlingFloat(vehicle, 'CHandlingData', 'fInitialDragCoeff')
    
    Entity(vehicle).state.kq_roofbox_handling = {
        vecCentreOfMassOffset = vecCentreOfMassOffset,
        fInitialDragCoeff = fInitialDragCoeff,
    }
    
    SetVehicleHandlingVector(vehicle, 'CHandlingData', 'vecCentreOfMassOffset', vecCentreOfMassOffset + vector3(0, 0, 1))
    SetVehicleHandlingFloat(vehicle, 'CHandlingData', 'fInitialDragCoeff', math.min(120, fInitialDragCoeff + 6))
    
    -- This seems necessary to refresh vehicle handling
    ModifyVehicleTopSpeed(vehicle, 0.0)
    
    Debug('Applied handling data')
end


local function ResetVehicleRoofboxHandling(vehicle)
    if not Config.handling.enabled then
        return
    end
    
    local state = Entity(vehicle).state.kq_roofbox_handling
    SetVehicleHandlingVector(vehicle, 'CHandlingData', 'vecCentreOfMassOffset', state.vecCentreOfMassOffset)
    SetVehicleHandlingFloat(vehicle, 'CHandlingData', 'fInitialDragCoeff', state.fInitialDragCoeff)
    
    -- This seems necessary to refresh vehicle handling
    ModifyVehicleTopSpeed(vehicle, 0.0)
    
    Entity(vehicle).state.kq_roofbox_handling = nil
    
    Debug('Reset handling data')
end

if Config.handling.enabled then
    Citizen.CreateThread(function()
        
        while true do
            local sleep = 5000
            
            local playerPed = PlayerPedId()
            local vehicle = GetVehiclePedIsUsing(playerPed)
            if vehicle > 0 then
                if ShouldVehicleHaveRoofbox(vehicle) then
                    if not Entity(vehicle).state.kq_roofbox_handling then
                        ApplyVehicleRoofboxHandling(vehicle)
                    end
                elseif Entity(vehicle).state.kq_roofbox_handling then
                    ResetVehicleRoofboxHandling(vehicle)
                end
            end
            
            Citizen.Wait(sleep)
        end
    end)
end