koel/koel

use Illuminate\Database\Eloquent\Builder;

class SmartPlaylistService
{
    //
    public function buildQueryFromRules(array $rules): Builder
    {
        $query = Song::query();

        collect($rules)->each(static function (array $ruleGroup) use ($query): void {
            $query->orWhere(static function (Builder $subQuery) use ($ruleGroup): void {
                foreach ($ruleGroup['rules'] as $config) {
                    Rule::create($config)->build($subQuery);
                }
            });
        });

        return $query;
    }
    //
}