export function toEmbedUrl(url: string): string {
  let videoId = '';

  // watch?v=...
  if (url.includes('watch?v=')) {
    const params = new URL(url).searchParams;
    videoId = params.get('v') || '';
  }
  // youtu.be/...
  else if (url.includes('youtu.be/')) {
    const pathname = new URL(url).pathname; // /videoId
    videoId = pathname.split('/')[1] || '';
  }
  // shorts/...
  else if (url.includes('youtube.com/shorts/')) {
    const pathname = new URL(url).pathname; // /shorts/videoId
    videoId = pathname.split('/')[2] || '';
  }

  return videoId ? `https://www.youtube.com/embed/${videoId}` : '';
}