server.lua

local isNDCoreStarted = GetResourceState('ND_Core') == 'started'

if isNDCoreStarted then
    print('NDCore found, and is being used.')
else
    print('ND_Core is not started, modifications won\'t cost anything')
end

---@return number
local function getModPrice(mod, level)
    if mod == 'cosmetic' or mod == 'colors' or mod == 18 then
        return Config.Prices[mod] --[[@as number]]
    else
        return Config.Prices[mod][level]
    end
end

---@param source number
---@param amount number
---@return boolean
local function removeMoney(source, amount)
    if NDCore then
        local player = NDCore.getPlayer(source)
        local cashBalance = player.getData("cash")
        local bankBalance = player.getData("bank")

        if cashBalance >= amount then
            player.deductMoney('cash', amount, "Customs")
            return true
        elseif bankBalance >= amount then
            player.deductMoney('bank', amount, "Customs")
            lib.notify(source, {
                title = 'Customs',
                description = ('You paid $%s from your bank account'):format(amount),
                type = 'success',
            })
            return true
        end
    end

    return false
end

-- Won't charge money for mods if the player's job is in the list
lib.callback.register('customs:server:pay', function(source, mod, level)
    local zone = lib.callback.await('customs:client:zone', source)

    local player = NDCore.getPlayer(source)

    if not player then
        return false
    end

    for i, v in ipairs(Config.Zones) do
        if i == zone then
            local playerJob = player.getData("job")

            if v.freeMods then
                for _, job in ipairs(v.freeMods) do
                    if playerJob == job then
                        return true
                    end
                end
            end
        end
    end

    return removeMoney(source, getModPrice(mod, level))
end)

-- Won't charge money for repairs if the player's job is in the list
lib.callback.register('customs:server:repair', function(source, bodyHealth)
    local zone = lib.callback.await('customs:client:zone', source)

    local player = NDCore.getPlayer(source)

    if not player then
        return false
    end

    for i, v in ipairs(Config.Zones) do
        if i == zone then
            local playerJob = player.getData("job")

            if v.freeRepair then
                for _, job in ipairs(v.freeRepair) do
                    if playerJob == job then
                        return true
                    end
                end
            end
        end
    end

    local price = math.ceil(1000 - bodyHealth)
    return removeMoney(source, price)
end)


local function IsVehicleOwned(plate)
    local result = MySQL.scalar.await('SELECT 1 from player_vehicles WHERE plate = ?', {plate})
    if result then
        return true
    else
        return false
    end
end

-- Copied from qb-mechanicjob
RegisterNetEvent('customs:server:saveVehicleProps', function()
    local src = source --[[@as number]]
    local vehicleProps = lib.callback.await('customs:client:vehicleProps', src)
    if IsVehicleOwned(vehicleProps.plate) then
        MySQL.update('UPDATE player_vehicles SET mods = ? WHERE plate = ?', {json.encode(vehicleProps), vehicleProps.plate})
    end
end)