animethemes-server/app/Actions/Models/List/Playlist/InsertTrackAfterAction.php

<?php

declare(strict_types=1);

namespace App\Actions\Models\List\Playlist;

use App\Models\List\Playlist;
use App\Models\List\Playlist\PlaylistTrack;
use Exception;
use Illuminate\Support\Facades\DB;
use Illuminate\Support\Facades\Log;

class InsertTrackAfterAction
{
    /**
     * Insert track after previous track.
     *
     * @throws Exception
     */
    public function insertAfter(Playlist $playlist, PlaylistTrack $track, PlaylistTrack $previous): void
    {
        try {
            DB::beginTransaction();

            if ($playlist->last()->is($previous)) {
                $playlist->last()->associate($track)->save();
            }

            $next = $previous->next;
            $next?->previous()?->associate($track)?->save();
            $track->next()->associate($next);

            $previous->next()->associate($track)->save();
            $track->previous()->associate($previous)->save();

            DB::commit();
        } catch (Exception $e) {
            Log::error($e->getMessage());

            DB::rollBack();

            throw $e;
        }
    }
}