UNIT3D-Community-Edition/app/Http/Livewire/TopicPostSearch.php

<?php

declare(strict_types=1);

/**
 * NOTICE OF LICENSE.
 *
 * UNIT3D Community Edition is open-sourced software licensed under the GNU Affero General Public License v3.0
 * The details is bundled with this project in the file LICENSE.txt.
 *
 * @project    UNIT3D Community Edition
 *
 * @author     Roardom <roardom@protonmail.com>
 * @license    https://www.gnu.org/licenses/agpl-3.0.en.html/ GNU Affero General Public License v3.0
 */

namespace App\Http\Livewire;

use App\Models\Post;
use App\Models\Topic;
use App\Models\TopicRead;
use Illuminate\Support\Facades\DB;
use Livewire\Attributes\Url;
use Livewire\Component;
use Livewire\WithPagination;

class TopicPostSearch extends Component
{
    use WithPagination;

    #TODO: Update URL attributes once Livewire 3 fixes upstream bug. See: https://github.com/livewire/livewire/discussions/7746

    #[Url(history: true)]
    public string $search = '';

    public Topic $topic;

    final public function mount(Topic $topic): void
    {
        $this->topic = $topic;
    }

    final public function updatingSearch(): void
    {
        $this->resetPage();
    }

    /**
     * @var \Illuminate\Pagination\LengthAwarePaginator<int, Post>
     */
    final protected \Illuminate\Pagination\LengthAwarePaginator $posts {
        get {
            $posts = Post::query()
                ->with('user.group')
                ->withCount('likes', 'dislikes', 'authorPosts', 'authorTopics')
                ->withSum('tips', 'bon')
                ->where('topic_id', '=', $this->topic->id)
                ->authorized(canReadTopic: true)
                ->when($this->search !== '', fn ($query) => $query->where('content', 'LIKE', '%'.$this->search.'%'))
                ->orderBy('created_at')
                ->paginate(25);

            if ($lastPost = $posts->getCollection()->last()) {
                TopicRead::upsert([[
                    'topic_id'          => $this->topic->id,
                    'user_id'           => auth()->id(),
                    'last_read_post_id' => $lastPost->id,
                ]], [
                    'topic_id',
                    'user_id'
                ], [
                    'last_read_post_id' => DB::raw('GREATEST(last_read_post_id, VALUES(last_read_post_id))')
                ]);
            }

            return $posts;
        }
    }

    final public function render(): \Illuminate\Contracts\View\Factory|\Illuminate\Contracts\View\View|\Illuminate\Contracts\Foundation\Application
    {
        return view('livewire.topic-post-search', [
            'topic' => $this->topic,
            'posts' => $this->posts,
        ]);
    }
}