export function getYoutubeId(href: string): string | null {
  try {
    const url = new URL(href)
    if (url.hostname === 'youtu.be') {
      return url.pathname.slice(1).split('/')[0] || null
    }
    if (url.hostname === 'youtube.com' || url.hostname.endsWith('.youtube.com')) {
      if (url.pathname === '/watch') return url.searchParams.get('v')
      const m = url.pathname.match(/^\/(shorts|embed|live)\/([\w-]+)/)
      if (m?.[2]) return m[2]
    }
    return null
  }
  catch {
    return null
  }
}

export function youtubeEmbedUrl(videoId: string) {
  return `https://www.youtube.com/embed/${videoId}`
}

export function youtubeThumbUrl(videoId: string) {
  return `https://i.ytimg.com/vi/${videoId}/mqdefault.jpg`
}