<?php

namespace App\Services;

use App\Models\Playlist;
use App\Models\PlaylistEpisode;

class PlaylistService
{
    public function reorderPositions(Playlist $playlist): void
    {
        $episodes = PlaylistEpisode::where('playlist_id', $playlist->id)
            ->orderBy('position')
            ->get();

        foreach ($episodes as $index => $episode) {
            $episode->position = $index + 1;
            $episode->save();
        }
    }

    public function swapPositions(PlaylistEpisode $a, PlaylistEpisode $b): void
    {
        $temp = $a->position;
        $a->position = $b->position;
        $b->position = $temp;
        $a->save();
        $b->save();
    }
}