searchForTrack method

Implementation

// NOTE: This should be in the [TrackSearch] extension, but is implemented here to keep in line
// with the [SrcEngine] interface.
@override
Future<List<SpotifyResult>> searchForTrack(String query, [int itemCount = 5]) async {
  var resultPages =
      await _spotifyEngine.search.get(query, types: [SearchType.track]).first(itemCount);

  var results = <SpotifyResult>[];

  for (var page in resultPages) {
    if (page.items != null) {
      // `page.items` is apparently a `MappedListIterable`, whatever that is,
      // so I'd rathe typecast the `item` instead.
      for (var item in page.items!) {
        var track = item as Track;

        // for some reason, all fields are nullable, e.g. track.artist is not of type `Artist`,
        // but `Artist?`. I assume that it will always be non-null, so I'm using `!` to access.
        results.add(
          SpotifyResult(
            artists: track.artists!.map((artist) => artist.name!).toList(),
            title: track.name!,
            album: track.album!.name!,
            sDuration: track.durationMs! ~/ 1000,
            srcUrl: 'https://open.spotify.com/track/${track.uri!.split(':').last}',
            artUrl: track.album!.images!.first.url!,
            source: Source.spotify,
            diskNumber: track.discNumber!,
            trackNumber: track.trackNumber!,
          ),
        );
      }
    }
  }

  return results;
}