Fix track search for ytmusic

Track search recently changed (see linked commit), this makes the same
changes here so that the track search works again.

e1af1c2653

lib/services/ytmusic/index.js

@@ -114,25 +114,35 @@ function parse_result_content(contents, type) {
 }
 
 async function lookupTrack(id) {
-  let endpoint = "https://www.youtube.com/get_video_info"
-  const { body } = await request.get(endpoint).query({ video_id: id, hl: "en", el: "detailpage" })
+  let request_body = {'video_id': id, ...standard_body }
 
-  if (body.player_response === undefined) {
-    throw new Error();
+  const { body } = await request.post("https://music.youtube.com/youtubei/v1/player")
+    .set(standard_headers)
+    .query(standard_params)
+    .send(request_body)
+  let song_meta = body.videoDetails
+
+  let description = body.microformat.microformatDataRenderer.description.split(' · ')
+  let possible_album_name = description[description.length - 1].split("℗")[0]
+  if (!description[description.length - 1].includes("℗")) {
+    possible_album_name = "";
   }
-  let player_response = JSON.parse(body.player_response)
-  let song_meta = player_response.videoDetails
-
-  let description = song_meta.shortDescription.split("\n\n")
-  let album_name = description[2]
-  let artists = description[1].split(' · ').slice(1)
+  let tags = body.microformat.microformatDataRenderer.tags
+  let album_name = ""
+  for (const tag of tags) {
+    if(possible_album_name.includes(tag)){
+      album_name = tag;
+    }
+  }
+  let artists = song_meta.author
+  artists = artists.replace(" - Topic", "")
 
   const artwork = {
     small: song_meta.thumbnail.thumbnails[0].url,
     large: song_meta.thumbnail.thumbnails[song_meta.thumbnail.thumbnails.length-1].url,
   };
 
-  return Promise.resolve({
+  let track_info = {
     service: 'ytmusic',
     type: 'track',
     id: song_meta.videoId,
@@ -141,12 +151,14 @@ async function lookupTrack(id) {
     purchaseUrl: null,
     artwork,
     artist: {
-      name: artists.join(", "),
+      name: artists,
     },
     album: {
       name: album_name,
     },
-  });
+  }
+  debug(track_info)
+  return Promise.resolve(track_info);
 }
 
 async function lookupAlbum(id) {

test/services/ytmusic.js

@@ -10,8 +10,25 @@ describe('ytmusic', function(){
 
     it('should find track by ID', async function (){
       const result = await ytmusic.lookupId('9zrYXvUXiQk', 'track');
-      result.name.should.equal('One Vision (Remastered 2011)');
+      result.name.should.equal('One Vision');
       result.artist.name.should.equal('Queen');
+      result.album.name.should.equal('A Kind Of Magic')
+    });
+    it('should find track by ID', async function (){
+      const result = await ytmusic.lookupId('rAzfNuU1f8E', 'track');
+      result.name.should.equal('Erre (Live)');
+      result.artist.name.should.equal('Boogarins');
+      // The copyright notice is too long and is the only place where the album name is.
+      result.album.name.should.equal('')
+    });
+    it('should find track by ID', async function (){
+      const result = await ytmusic.lookupId('Wst0la_TgTY', 'track');
+      result.name.should.equal('Às Vezes Bate Uma Saudade');
+      // XXX: This is very odd. Sometimes, google will return the first artist "Rodrigo Alarcon", sometimes "Rodrigo Alarcon, Ana Muller & Mariana Froes" and sometimes
+      // "Rodrigo Alarcon, Ana Muller, Mariana Froes". Same API call, same everything. Go figure.
+      // result.artist.name.should.equal('Rodrigo Alarcon, Ana Muller, Mariana Froes');
+      result.artist.name.should.startWith('Rodrigo Alarcon');
+      result.album.name.should.equal('Taquetá Vol.1')
     });
   });
   describe('search', () => {