eatvio-infra/app/Http/Controllers/DietController.php

<?php

namespace App\Http\Controllers;

use App\Models\Diet;
use App\Models\User;
use Illuminate\Http\Request;
use Illuminate\Support\Facades\Gate;
use Illuminate\View\View;
use Spatie\QueryBuilder\AllowedFilter;
use Spatie\QueryBuilder\QueryBuilder;

class DietController extends Controller
{
    public function index(Request $request): View
    {
        $hasTypes = [];
        if ($request->has('author')) {
            $author = $request->get('author');
            $user = User::find($author);
            $diets = $user ? $user->author_of_diets : [];
        } else {
            $hasTypes = data_get($request->get('filter'), 'contains_type', []);
            $diets = QueryBuilder::for(Diet::class)
                ->allowedFilters([
                    'name',
                    AllowedFilter::callback('contains_type', function ($query, $v) use ($hasTypes) {
                        return $query->containsType($hasTypes);
                    }),
                    AllowedFilter::scope('duration_min'),
                    AllowedFilter::scope('duration_max'),
                    AllowedFilter::scope('involved_min'),
                    AllowedFilter::scope('involved_max'),
                ])
                ->get();
        }

        return view(
            'diet/index',
            [
                'diets' => $diets,
                'filter' => $request->get('filter'),
                'hasTypes' => $hasTypes,
            ]
        );
    }

    public function create(): View
    {
        return view('diet/edit_form');
    }

    public function edit(Diet $diet): View
    {
        if (! $this->canEditDiet($diet)) {
            abort(403, 'Unauthorized action.');
        }

        return view('diet/edit_form', ['diet' => $diet]);
    }

    public function show(Diet $diet): View
    {
        $expiresAt = now()->addHours(24);

        views($diet)
            ->cooldown($expiresAt)
            ->record();

        return view('diet/show', ['diet' => $diet]);
    }

    private function canEditDiet(Diet $diet): bool
    {
        return Gate::allows('edit', $diet);
    }
}