<?php

namespace App\Http\Controllers;

use App\Models\User;
use App\Models\Vehicle;
use Illuminate\Http\Request;
use Illuminate\View\View;

class VehicleController extends Controller
{
    public function index(Request $request): View
    {
        $query = Vehicle::with('user');

        if ($request->user()->hasRole('pracownik')) {
            $query->where('user_id', $request->user()->id);
        }

        $search = trim((string) $request->query('search', ''));
        if ($search !== '') {
            $query->where(function ($query) use ($search) {
                $query->where('brand', 'like', "%{$search}%")
                    ->orWhere('model', 'like', "%{$search}%")
                    ->orWhere('registration_number', 'like', "%{$search}%")
                    ->orWhere('insurance_provider', 'like', "%{$search}%")
                    ->orWhere('status', 'like', "%{$search}%")
                    ->orWhereHas('user', function ($userQuery) use ($search) {
                        $userQuery->where('name', 'like', "%{$search}%")
                            ->orWhere('surname', 'like', "%{$search}%")
                            ->orWhere('email', 'like', "%{$search}%");
                    });
            });
        }

        $vehicles = $query->orderBy('brand')->orderBy('registration_number')->paginate(15)->withQueryString();
        $users = User::orderBy('name')->orderBy('surname')->get();

        return view('flota', compact('vehicles', 'users'));
    }

    public function create(Request $request): View
    {
        $this->authorizeVehicleManagement($request);

        $users = User::orderBy('name')->orderBy('surname')->get();

        return view('flota.create', compact('users'));
    }

    public function store(Request $request)
    {
        $this->authorizeVehicleManagement($request);

        $validated = $request->validate([
            'brand' => ['required', 'string', 'max:255'],
            'model' => ['nullable', 'string', 'max:255'],
            'registration_number' => ['required', 'string', 'max:50', 'unique:vehicles,registration_number'],
            'user_id' => ['required', 'integer', 'exists:users,id'],
            'year' => ['required', 'integer', 'min:1900', 'max:2100'],
            'purchase_date' => ['required', 'date'],
            'oc_expiry_date' => ['required', 'date'],
            'oil_change_km' => ['required', 'integer', 'min:0'],
            'insurance_provider' => ['required', 'string', 'max:255'],
            'technical_inspection_date' => ['required', 'date'],
            'mileage_km' => ['required', 'integer', 'min:0'],
            'status' => ['required', 'string', 'in:aktywny,serwis,używany,sprzedany'],
        ]);

        Vehicle::create($validated);

        return redirect()->route('flota')->with('status', 'Pojazd został dodany.');
    }

    public function edit(Request $request, Vehicle $vehicle): View
    {
        $this->authorizeVehicleManagement($request);
        $this->authorizeVehicleAccess($request, $vehicle);

        $users = User::orderBy('name')->orderBy('surname')->get();

        return view('flota.edit', compact('vehicle', 'users'));
    }

    public function update(Request $request, Vehicle $vehicle)
    {
        $this->authorizeVehicleManagement($request);
        $this->authorizeVehicleAccess($request, $vehicle);

        $validated = $request->validate([
            'brand' => ['required', 'string', 'max:255'],
            'model' => ['nullable', 'string', 'max:255'],
            'registration_number' => ['required', 'string', 'max:50', 'unique:vehicles,registration_number,' . $vehicle->id],
            'user_id' => ['required', 'integer', 'exists:users,id'],
            'year' => ['required', 'integer', 'min:1900', 'max:2100'],
            'purchase_date' => ['required', 'date'],
            'oc_expiry_date' => ['required', 'date'],
            'oil_change_km' => ['required', 'integer', 'min:0'],
            'insurance_provider' => ['required', 'string', 'max:255'],
            'technical_inspection_date' => ['required', 'date'],
            'mileage_km' => ['required', 'integer', 'min:0'],
            'status' => ['required', 'string', 'in:aktywny,serwis,używany,sprzedany'],
        ]);

        $vehicle->update($validated);

        return redirect()->route('flota')->with('status', 'Pojazd został zaktualizowany.');
    }

    public function destroy(Request $request, Vehicle $vehicle)
    {
        $this->authorizeVehicleManagement($request);
        $this->authorizeVehicleAccess($request, $vehicle);

        $vehicle->delete();

        return redirect()->route('flota')->with('status', 'Pojazd został usunięty.');
    }

    private function authorizeVehicleManagement(Request $request): void
    {
        abort_unless($request->user()->can('flota_access'), 403);
    }

    private function authorizeVehicleAccess(Request $request, Vehicle $vehicle): void
    {
        if ($request->user()->hasRole('pracownik') && $vehicle->user_id !== $request->user()->id) {
            abort(403);
        }
    }
}