LinesController.php

<?php

namespace App\Http\Controllers;

use App\Http\Requests\UpdateLineRequest;
use App\Repositories\CountriesRepository;
use App\Repositories\LineRepository;
use App\Repositories\SettingsRepository;
use App\Repositories\ViewRepository;
use App\Line;
use App\Transformers\LineFullTransformer;
use App\Transformers\StationTransformer;
use Illuminate\Http\Request;

class LinesController extends Controller
{
    protected $countriesRepository;
    protected $lineRepository;
    protected $settingsRepository;
    protected $viewRepository;

    /**
     * Create a new controller instance.
     *
     * @return void
     */
    public function __construct(CountriesRepository $countriesRepository,
                                LineRepository $lineRepository,
                                SettingsRepository $settingsRepository,
                                ViewRepository $viewRepository)
    {
        $this->countriesRepository = $countriesRepository;
        $this->lineRepository = $lineRepository;
        $this->settingsRepository = $settingsRepository;
        $this->viewRepository = $viewRepository;
    }

    public function show(Line $line){

        $stations = $this->lineRepository->stations($line);

        $take = $this->settingsRepository->get('page_size');

        $line->load(['views' => function ($query) use($take) {
            $query->orderBy('video_quality', 'asc');
            $query->orderBy('duration', 'desc');
            $query->with('video');
            $query->take($take);
        }]);

        $orders = [
            'video_quality' => 'asc',
            'duration' => 'desc'
        ];

        $views = $this->viewRepository->viewsForLine($line, [
            'take' => $take,
            'skip' => 0,
            'orders' => $orders,
            'with' => ['video']
        ]);

        $data['views'] = $views;

        $data['meta'] = [
            'title' => $line->name().', '.trans('main.line'),
            'description' => 'Все станции и остановочные пункты на участке '.$line->name().'. Путешествие по участку железной дороги '.$line->name(),
        ];

        $data['line'] = $line;
        $data['stations'] = $stations;

        return view('lines.show', $data);
    }

    public function stationsForLine(Line $line){

        $order = 'asc';

        if(request('order') == 'desc'){
            $order = 'desc';
        }

        $stations = $line->stations()->orderBy('distance_marker', $order)->get();

        return response()->json(fractal($stations, new StationTransformer()));
    }

    public function edit(Line $line){

        $data = [
            'meta' => [
                'title' => trans('main.Edit line')
            ],
        ];

        $data['line'] = $line;
        $data['countriesSelectSource'] = $this->countriesRepository->selectSource();

        return view('lines.edit', $data);
    }

    public function update(UpdateLineRequest $request, Line $line){
        $stations = request('stations');

        // check the same timestamps
        $hasTheSameMarks = false;
        $sameMark = 0;
        foreach ($stations as $key_i => $station_i){
            foreach ($stations as $key_j => $station_j){
                if($key_i == $key_j)
                    continue;

                if($station_i['distance_marker'] == $station_j['distance_marker']){
                    $hasTheSameMarks = true;
                    $sameMark = $station_i['distance_marker'];
                    break 2;
                }
            }
        }

        if(true === $hasTheSameMarks){
            $message = trans('main.Distance marks cannot be the same', ['mark' => $sameMark]);

            return response()->json([
                'stations' => [$message]
            ], 422);
        }

        // SUCCESS
        $line->country_id = request('country_id');
        $line->name = request('name');
        $line->insignificant = request('insignificant');
        $line->save();

        $stationsForSync = [];
        foreach ($stations as $station){
            $stationsForSync[$station['id']] = [
                'distance_marker' => $station['distance_marker']
            ];
        }

        $line->stations()->sync($stationsForSync);

        return response()->json(fractal($line, new LineFullTransformer()));
    }

    public function getFull(Line $line){

        return response()->json(fractal($line, new LineFullTransformer()));
    }
}