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Parse playlist and use it to figure out the album

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This commit is contained in:
Renato "Lond" Cerqueira 2021-01-17 16:10:14 +01:00
parent dd5e389739
commit 7c0269229d
1 changed files with 41 additions and 3 deletions
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44
lib/services/ytmusic/index.js
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@ -190,14 +190,54 @@ async function lookupAlbum(id) {
artist: {
name: artists.join(", "),
},
playlistId: album_data.audioPlaylistId
});
}
async function lookupPlaylist(id) {
let request_body = {enablePersistentPlaylistPanel: true, isAudioOnly: true, playlistId: id, ...standard_body}
const { body } = await request.post("https://music.youtube.com/youtubei/v1/next")
.set(standard_headers)
.query(standard_params)
.send(request_body)
// The playlist object is rather complex, but here's what I'm doing: I'll parse the very minimum to get to the first track.
// At that point, I'm going to check the id of the album in that track. And make a lookup on it. If the album looked up
// has the same playlist id as the one I'm looking up, it means it's an album and not a playlist and we're good.
const watchNextRenderer = body.contents.singleColumnMusicWatchNextResultsRenderer.tabbedRenderer.watchNextTabbedResultsRenderer
const firstTrack = watchNextRenderer.tabs[0].tabRenderer.content.musicQueueRenderer.content.playlistPanelRenderer.contents[0]
const runs = firstTrack.playlistPanelVideoRenderer.longBylineText.runs
const reverse_last_artist_idx = runs.reverse().findIndex((entry) => {
if (entry.navigationEndpoint === undefined) {
return false
}
return entry.navigationEndpoint.browseEndpoint.browseId.startsWith("UC") ||
entry.navigationEndpoint.browseEndpoint.browseId.startsWith("FEmusic_library_privately_owned_artist")
});
if (reverse_last_artist_idx == -1) {
debug("Could not find an artist. Implement extra logic from ytmusicapi!");
throw new Error();
}
const last_artist_idx = runs.length - reverse_last_artist_idx - 1;
if (runs.length - last_artist_idx != 5) {
debug("No album found, can't find this.");
throw new Error();
}
const albumId = runs[last_artist_idx + 2].navigationEndpoint.browseEndpoint.browseId
const possibleAlbum = await lookupAlbum(albumId)
if (possibleAlbum.playlistId = id) {
return possibleAlbum;
}
throw new Error();
}
export async function lookupId(id, type) {
if (type == 'track') {
return lookupTrack(id);
} else if (type == 'album') {
return lookupAlbum(id);
} else if (type == 'playlist') {
return lookupPlaylist(id);
}
return { service: 'ytmusic', id };
}
@ -214,9 +254,7 @@ export function parseUrl(url) {
} else if (match = parsed.path.match(/^\/browse\/([A-Za-z0-9_]+)/)) {
return lookupId(match[1], 'album');
} else if (match = parsed.path.match(/^\/playlist/) && list_id !== undefined) {
if (list_id == 'OLAK5uy_lx9K5RpiBEwd3E4C1GKqY7e06qTlwydvs') { // TODO: Parse playlist correctly
return lookupId('MPREb_9C36yscfgmJ', 'album');
}
return lookupId(list_id, 'playlist');
}
throw new Error();
}