gamelog/app/Http/Controllers/ListController.php

<?php

namespace App\Http\Controllers;

use App\Models\Game;
use App\Models\UserList;
use App\Models\UserListGame;
use Illuminate\Http\Request;
use Illuminate\Support\Str;

class ListController extends Controller
{
    public function __construct()
    {
        $this->middleware('auth')->except('show');
    }

    public function index()
    {
        $lists = auth()->user()->lists()->withCount('listGames')->latest()->get();
        return view('lists.index', compact('lists'));
    }

    public function store(Request $request)
    {
        $data = $request->validate([
            'title'       => 'required|string|max:100',
            'description' => 'nullable|string|max:1000',
            'is_public'   => 'boolean',
        ]);

        $slug = Str::slug($data['title']);
        $base = $slug;
        $i    = 1;
        while (auth()->user()->lists()->where('slug', $slug)->exists()) {
            $slug = $base . '-' . $i++;
        }

        $list = UserList::create([
            'user_id'     => auth()->id(),
            'title'       => $data['title'],
            'slug'        => $slug,
            'description' => $data['description'] ?? null,
            'is_public'   => $data['is_public'] ?? true,
        ]);

        return redirect()->route('lists.show', $list)->with('success', 'List created!');
    }

    public function show(UserList $list)
    {
        if (!$list->is_public && (!auth()->check() || auth()->id() !== $list->user_id)) {
            abort(403);
        }

        $list->load(['listGames.game', 'user']);

        return view('lists.show', compact('list'));
    }

    public function addGame(Request $request, UserList $list)
    {
        $this->authorize('manage', $list);

        $data = $request->validate(['game_id' => 'required|exists:games,id']);

        UserListGame::firstOrCreate([
            'user_list_id' => $list->id,
            'game_id'      => $data['game_id'],
        ], ['order' => $list->listGames()->count()]);

        return response()->json(['success' => true]);
    }

    public function removeGame(UserList $list, Game $game)
    {
        $this->authorize('manage', $list);

        $list->listGames()->where('game_id', $game->id)->delete();

        return response()->json(['success' => true]);
    }

    public function destroy(UserList $list)
    {
        $this->authorize('manage', $list);
        $list->delete();

        return redirect()->route('lists.index')->with('success', 'List deleted.');
    }
}