oldschoolshuffle

spotifyFunctions.js

async function createPlaylist(simplifiedTrackArray, playlistName, addRelatedDiscography) {
    //have to get userId, create a playlist in spotify with the name, and then add the tracks to it
    //options is whether to addDiscography
    //Note that Spotify is very picky about what counts as an 'active device' so likely don't have permission to press
    //play. Also only works if the user has premium. Also spotify will only let you add 100 tracks
    //per addTracksToPlaylist request, so need to split the trackUris up if more than 100 tracks

    const maxTracksToAddInEachRequest = 100;
    const userInfoResponse = await spotifyApi.getMe();
    const name = `${playlistName} - Album Shuffled - ${addRelatedDiscography === "true" ? 'with related discography' : ''}`;
    const description = 'Made with the oldschoolshuffle app to enable shuffling by album, the way music was meant to be listened to';
    //es6 destructuring and renaming
    const {id: userId} = userInfoResponse;
    const playlistOptions = {name: name, description: description}
    const newPlaylistResponse = await spotifyApi.createPlaylist(userId, playlistOptions);
    const trackUris = simplifiedTrackArray.map((trackObject) => {
        return trackObject.trackUri
    })

    try {
        if (trackUris.length <maxTracksToAddInEachRequest) {
            return await spotifyApi.addTracksToPlaylist(newPlaylistResponse.id, trackUris);
        }
        else {
            const chunkedTrackUris = chunk(trackUris, maxTracksToAddInEachRequest);
            const promisesOfChunkedUris = chunkedTrackUris.map(async (chunkOfTrackUris) => {
                //eslint-disable-next-line
                const addTracksToPlaylistResponse = await spotifyApi.addTracksToPlaylist(newPlaylistResponse.id, chunkOfTrackUris);
            })
            await Promise.all(promisesOfChunkedUris);
            return await spotifyApi.play({context_uri: newPlaylistResponse.uri});
        }
    } catch(err) {
        console.log('Oops - no spotify player is active so just made a playlist');
    }
}