<?php

namespace App\Http\Controllers\Admin;

use App\Http\Controllers\Controller;
use App\Models\Airline;
use App\Models\Airport;
use App\Models\File;
use App\Models\Flight;
use DB;
use Illuminate\Database\Eloquent\Builder;
use Illuminate\Http\Request;
use Illuminate\Support\Facades\Log;

class FlightController extends Controller
{
    public function index(Request $request)
    {
        $flights = Flight::query()
            ->with([
                'departureAirport.city',
                'arrivalAirport.city',
                'airline',
                'file',
            ])
            ->when($request->filled('search'), function (Builder $query) use ($request) {

                $search = $request->input('search');

                $query->whereAny([
                    'title',
                    'summary',
                    'description',
                ], 'LIKE', "%$search%");

            })
            ->when($request->filled('sort'), function (Builder $query) use ($request) {

                $sort = $request->input('sort');

                switch ($sort) {

                    case 'price_asc':
                        $query->orderBy('price');
                        break;

                    case 'price_desc':
                        $query->orderByDesc('price');
                        break;

                    case 'departure_time':
                        $query->orderBy('departure_time');
                        break;

                    case 'created_at':
                        $query->orderByDesc('created_at');
                        break;
                }

            }, function (Builder $query) {

                $query->orderByDesc('created_at');

            })
            ->paginate();

        return view('admin.flights.index', compact('flights'));
    }

    public function create()
    {
        $airlines = Airline::all();

        $airports = Airport::with('city')->get();

        return view('admin.flights.create', compact(
            'airlines',
            'airports'
        ));
    }

    public function store(Request $request)
    {
        $request->validate([
            'title' => [
                'required',
                'max:256',
            ],

            'image' => [
                'nullable',
                'image',
                'mimes:jpg,jpeg,png,webp',
                'max:5120',
            ],

            'airline_id' => [
                'required',
                'exists:airlines,id',
            ],

            'flight_type' => [
                'required',
                'in:0,1,2',
            ],

            'departure_time' => [
                'required',
                'date',
            ],

            'departure_airport_id' => [
                'required',
                'exists:airports,id',
            ],

            'arrival_airport_id' => [
                'required',
                'exists:airports,id',
            ],

            'price' => [
                'required',
                'numeric',
            ],

            'summary' => [
                'required',
                'max:512',
            ],

            'capacity' => [
                'required',
                'integer',
            ],

            'description' => [
                'required',
                'max:512',
            ],

            'status' => [
                'required',
                'in:0,1',
            ],
        ]);

        try {

            DB::beginTransaction();

            $fileId = null;

            if ($request->hasFile('image')) {

                $file = $request->file('image');

                $path = $file->store('flights', 'public');

                $uploadedFile = File::create([
                    'name' => pathinfo($file->hashName(), PATHINFO_FILENAME),
                    'extension' => $file->getClientOriginalExtension(),
                    'size' => $file->getSize(),
                    'original_name' => $file->getClientOriginalName(),
                    'path' => $path,
                ]);

                $fileId = $uploadedFile->id;
            }

            Flight::create([
                'title' => $request->input('title'),
                'file_id' => $fileId,
                'airline_id' => $request->input('airline_id'),
                'flight_type' => $request->input('flight_type'),
                'departure_time' => $request->input('departure_time'),
                'departure_airport_id' => $request->input('departure_airport_id'),
                'arrival_airport_id' => $request->input('arrival_airport_id'),
                'price' => $request->input('price'),
                'summary' => $request->input('summary'),
                'capacity' => $request->input('capacity'),
                'views' => 0,
                'description' => $request->input('description'),
                'status' => $request->input('status'),
            ]);

            DB::commit();

        } catch (\Exception $exception) {

            DB::rollBack();

            Log::error($exception);

            return back()
                ->withErrors([
                    'general' => 'خطایی رخ داده است'
                ])
                ->withInput();
        }

        return redirect()
            ->route('admin.flights.index')
            ->with('success', 'پرواز با موفقیت ایجاد شد');
    }

    public function edit(Flight $flight)
    {
        $flight->load([
            'departureAirport.city',
            'arrivalAirport.city',
            'airline',
            'file',
        ]);

        $airlines = Airline::all();

        $airports = Airport::with('city')->get();

        return view('admin.flights.edit', compact(
            'flight',
            'airlines',
            'airports'
        ));
    }

    public function update(Request $request, Flight $flight)
    {
        $request->validate([
            'title' => [
                'required',
                'max:256',
            ],

            'image' => [
                'nullable',
                'image',
                'mimes:jpg,jpeg,png,webp',
                'max:5120',
            ],

            'airline_id' => [
                'required',
                'exists:airlines,id',
            ],

            'flight_type' => [
                'required',
                'in:0,1,2',
            ],

            'departure_time' => [
                'required',
                'date',
            ],

            'departure_airport_id' => [
                'required',
                'exists:airports,id',
            ],

            'arrival_airport_id' => [
                'required',
                'exists:airports,id',
            ],

            'price' => [
                'required',
                'numeric',
            ],

            'summary' => [
                'required',
                'max:512',
            ],

            'capacity' => [
                'required',
                'integer',
            ],

            'description' => [
                'required',
                'max:512',
            ],

            'status' => [
                'required',
                'in:0,1',
            ],
        ]);

        try {

            DB::beginTransaction();

            $fileId = $flight->file_id;

            if ($request->hasFile('image')) {

                $file = $request->file('image');

                $path = $file->store('flights', 'public');

                $uploadedFile = File::create([
                    'name' => pathinfo($file->hashName(), PATHINFO_FILENAME),
                    'extension' => $file->getClientOriginalExtension(),
                    'size' => $file->getSize(),
                    'original_name' => $file->getClientOriginalName(),
                    'path' => $path,
                ]);

                $fileId = $uploadedFile->id;
            }

            $flight->update([
                'title' => $request->input('title'),
                'file_id' => $fileId,
                'airline_id' => $request->input('airline_id'),
                'flight_type' => $request->input('flight_type'),
                'departure_time' => $request->input('departure_time'),
                'departure_airport_id' => $request->input('departure_airport_id'),
                'arrival_airport_id' => $request->input('arrival_airport_id'),
                'price' => $request->input('price'),
                'summary' => $request->input('summary'),
                'capacity' => $request->input('capacity'),
                'description' => $request->input('description'),
                'status' => $request->input('status'),
            ]);

            DB::commit();

        } catch (\Exception $exception) {

            DB::rollBack();

            Log::error($exception);

            return back()
                ->withErrors([
                    'general' => 'خطایی رخ داده است'
                ])
                ->withInput();
        }

        return redirect()
            ->route('admin.flights.index')
            ->with('success', 'پرواز با موفقیت ویرایش شد');
    }

    public function destroy(Flight $flight)
    {
        if ($flight->bookings()->exists()) {
            return back()->withErrors([
                'error' => 'این پرواز دارای رزرو است و قابل حذف نیست.'
            ]);
        }

        $flight->delete();

        return redirect()->route('admin.flights.index')->withErrors([
            'success'=> 'پرواز با موفقیت حذف شد'
        ]);
    }
}