local QBCore = exports['qb-core']:GetCoreObject()

-- Admin Permission Check
local function IsAdmin(source)
    local Player = QBCore.Functions.GetPlayer(source)
    if not Player then return false end
    return QBCore.Functions.HasPermission(source, 'admin') or Player.PlayerData.job.name == 'admin'
end

-- Get all players from database
QBCore.Functions.CreateCallback('vehicleadmin:getPlayers', function(source, cb)
    if not IsAdmin(source) then
        cb(false)
        return
    end
    
    MySQL.Async.fetchAll('SELECT citizenid, charinfo FROM players ORDER BY charinfo', {}, function(result)
        local players = {}
        for i = 1, #result do
            local charinfo = json.decode(result[i].charinfo)
            table.insert(players, {
                citizenid = result[i].citizenid,
                name = charinfo.firstname .. ' ' .. charinfo.lastname
            })
        end
        cb(players)
    end)
end)

-- Get vehicles for specific player
QBCore.Functions.CreateCallback('vehicleadmin:getPlayerVehicles', function(source, cb, citizenid)
    if not IsAdmin(source) then
        cb(false)
        return
    end
    
    MySQL.Async.fetchAll('SELECT * FROM player_vehicles WHERE citizenid = ?', {citizenid}, function(result)
        local vehicles = {}
        for i = 1, #result do
            local vehicle = result[i]
            local vehicleData = json.decode(vehicle.mods)
            
            table.insert(vehicles, {
                plate = vehicle.plate,
                vehicle = vehicle.vehicle,
                garage = vehicle.garage,
                state = vehicle.state,
                fuel = vehicle.fuel,
                engine = vehicle.engine,
                body = vehicle.body,
                citizenid = vehicle.citizenid,
                depotprice = vehicle.depotprice,
                drivingdistance = vehicle.drivingdistance
            })
        end
        cb(vehicles)
    end)
end)

-- Get all garages
QBCore.Functions.CreateCallback('vehicleadmin:getGarages', function(source, cb)
    if not IsAdmin(source) then
        cb(false)
        return
    end
    
    local garages = {}
    for garageName, garageData in pairs(QBCore.Shared.Garages) do
        table.insert(garages, {
            name = garageName,
            label = garageData.label or garageName
        })
    end
    cb(garages)
end)

-- Move vehicle to garage
RegisterNetEvent('vehicleadmin:moveToGarage', function(plate, garage)
    local src = source
    if not IsAdmin(src) then return end
    
    -- Delete vehicle from world if it exists
    local vehicles = GetAllVehicles()
    for i = 1, #vehicles do
        local veh = vehicles[i]
        local vehPlate = GetVehicleNumberPlateText(veh):gsub("%s+", "")
        if vehPlate == plate:gsub("%s+", "") then
            DeleteEntity(veh)
            break
        end
    end
    
    -- Update database
    MySQL.Async.execute('UPDATE player_vehicles SET state = ?, garage = ? WHERE plate = ?', {1, garage, plate}, function(affectedRows)
        if affectedRows > 0 then
            TriggerClientEvent('ox_lib:notify', src, {
                title = 'Fahrzeugverwaltung',
                description = 'Fahrzeug wurde in Garage ' .. garage .. ' gestellt',
                type = 'success'
            })
        else
            TriggerClientEvent('ox_lib:notify', src, {
                title = 'Fahrzeugverwaltung',
                description = 'Fehler beim Verschieben des Fahrzeugs',
                type = 'error'
            })
        end
    end)
end)

-- Delete vehicle from map
RegisterNetEvent('vehicleadmin:deleteFromMap', function(plate)
    local src = source
    if not IsAdmin(src) then return end
    
    local vehicles = GetAllVehicles()
    local deleted = false
    
    for i = 1, #vehicles do
        local veh = vehicles[i]
        local vehPlate = GetVehicleNumberPlateText(veh):gsub("%s+", "")
        if vehPlate == plate:gsub("%s+", "") then
            DeleteEntity(veh)
            deleted = true
            break
        end
    end
    
    if deleted then
        TriggerClientEvent('ox_lib:notify', src, {
            title = 'Fahrzeugverwaltung',
            description = 'Fahrzeug wurde von der Map gelöscht',
            type = 'success'
        })
    else
        TriggerClientEvent('ox_lib:notify', src, {
            title = 'Fahrzeugverwaltung',
            description = 'Fahrzeug nicht auf der Map gefunden',
            type = 'error'
        })
    end
end)

-- Repair vehicle
RegisterNetEvent('vehicleadmin:repairVehicle', function(plate)
    local src = source
    if not IsAdmin(src) then return end
    
    -- Update database
    MySQL.Async.execute('UPDATE player_vehicles SET engine = ?, body = ? WHERE plate = ?', {1000, 1000, plate}, function(affectedRows)
        -- Also repair if vehicle is on map
        local vehicles = GetAllVehicles()
        for i = 1, #vehicles do
            local veh = vehicles[i]
            local vehPlate = GetVehicleNumberPlateText(veh):gsub("%s+", "")
            if vehPlate == plate:gsub("%s+", "") then
                SetVehicleFixed(veh)
                SetVehicleDeformationFixed(veh)
                SetVehicleUndriveable(veh, false)
                SetVehicleEngineOn(veh, true, true)
                break
            end
        end
        
        if affectedRows > 0 then
            TriggerClientEvent('ox_lib:notify', src, {
                title = 'Fahrzeugverwaltung',
                description = 'Fahrzeug wurde repariert',
                type = 'success'
            })
        else
            TriggerClientEvent('ox_lib:notify', src, {
                title = 'Fahrzeugverwaltung',
                description = 'Fehler beim Reparieren des Fahrzeugs',
                type = 'error'
            })
        end
    end)
end)

-- Command to open admin menu
QBCore.Commands.Add('vehicleadmin', 'Öffne Fahrzeug Admin Menu', {}, false, function(source, args)
    local src = source
    if not IsAdmin(src) then
        TriggerClientEvent('ox_lib:notify', src, {
            title = 'Keine Berechtigung',
            description = 'Du hast keine Admin-Rechte',
            type = 'error'
        })
        return
    end
    
    TriggerClientEvent('vehicleadmin:openMenu', src)
end, 'admin')