// Run on playlist with thumbnail view, i.e. https://www.youtube.com/playlist?list=PLW_omwEM1aid1jtpNhqigEcRHAVsR-Hmz

const YOUTUBE_ROOT = 'https://www.youtube.com'
const videoItemClass =
  'yt-simple-endpoint style-scope ytd-playlist-video-renderer'
function getVideoInfos() {
  const videoLinks = document.getElementsByClassName(videoItemClass)
  const infos = []
  for (let i = 0; i < videoLinks.length; i++) {
    const url = videoLinks[i].href
    const title = videoLinks[i].innerText.trim()
    infos.push({ url, title })
  }
  return infos
}

function videoInfoToPlaylistEntry(info, idx) {
  const slot = idx + 1
  return `File${slot}=${info.url}
Title${slot}=${info.title}
Length${slot}=0`
}

const videoInfos = getVideoInfos()
const entries = videoInfos.map(videoInfoToPlaylistEntry)
const playlist = `
[playlist]
NumberOfEntries=${entries.length}
${entries.join('\n')}
Version=2
`

console.log(playlist)
document.querySelector('#copy')?.remove()
copy(playlist)