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

<?php

namespace App\Http\Controllers;

use App\Models\Plan;
use App\Models\User;
use Illuminate\Http\Request;
use Illuminate\Contracts\View\View;
use Illuminate\Contracts\View\Factory as ViewFactory;

class PlanController extends Controller
{
    public function index(Request $request): View|ViewFactory
    {
        if ($request->has('author')) {
            $author = $request->get('author');
            $user = User::find($author);
            $plans = $user ? $user->author_of_plans : [];
        } else {
            $plans = Plan::all();
        }

        return view('plan/index', ['plans' => $plans]);
    }

    public function create(): View|ViewFactory
    {
        return view('plan/edit_form');
    }

    public function show(Plan $plan): View|ViewFactory
    {
        $expiresAt = now()->addHours(24);

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

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

    public function edit(Plan $plan): View|ViewFactory
    {
        return view('plan/edit_form', ['plan' => $plan]);
    }
}