koel/app/Repositories/InteractionRepository.php

<?php

namespace App\Repositories;

use App\Models\Interaction;
use App\Models\User;
use App\Repositories\Traits\ByCurrentUser;
use Illuminate\Database\Eloquent\Builder;
use Illuminate\Support\Collection;

class InteractionRepository extends Repository
{
    use ByCurrentUser;

    /** @return Collection|array<Interaction> */
    public function getUserFavorites(User $user): Collection
    {
        return $this->model
            ->newQuery()
            ->where([
                'user_id' => $user->id,
                'liked' => true,
            ])
            ->with('song')
            ->pluck('song');
    }

    /** @return array<Interaction> */
    public function getRecentlyPlayed(User $user, ?int $count = null): array
    {
        return $this->model
            ->newQuery()
            ->where('user_id', $user->id)
            ->where('play_count', '>', 0)
            ->latest('last_played_at')
            ->when($count, static fn (Builder $query, int $count) => $query->take($count))
            ->pluck('song_id')
            ->all();
    }
}