koel/app/Http/Controllers/API/SongController.php

<?php

namespace App\Http\Controllers\API;

use App\Http\Requests\API\SongUpdateRequest;
use App\Models\Song;
use App\Repositories\AlbumRepository;
use App\Repositories\ArtistRepository;

class SongController extends Controller
{
    private $artistRepository;
    private $albumRepository;

    public function __construct(
        ArtistRepository $artistRepository,
        AlbumRepository $albumRepository
    ) {
        $this->artistRepository = $artistRepository;
        $this->albumRepository = $albumRepository;
    }

    public function update(SongUpdateRequest $request)
    {
        $updatedSongs = Song::updateInfo($request->songs, $request->data);

        return response()->json([
            'artists' => $this->artistRepository->getByIds($updatedSongs->pluck('artist_id')->all()),
            'albums' => $this->albumRepository->getByIds($updatedSongs->pluck('album_id')->all()),
            'songs' => $updatedSongs,
        ]);
    }
}