//Playlist creation from Audio Features
public async Task <ActionResult> NewAdvPlaylist(AdvTrackCalc adv)
{
var g = adv.GenreList.ToArray();
var user = await GetCurrentUser();
var advTrack = new AdvTrack()
{
Acousticness = adv.AvgAcousticness,
Danceability = adv.AvgDance,
Energy = adv.AvgEnergy,
Instrumentalness = adv.AvgInstrumentalness,
Liveness = adv.AvgLiveness,
Loudness = adv.AvgLoudness,
Speechiness = adv.AvgSpeechiness,
Tempo = adv.AvgTempo,
Valence = adv.AvgValence,
UserId = user.Id,
GenreList = adv.GenreList,
Genre = string.Join(",", g)
};
return(PartialView("_AdvTrackFeatures", advTrack));
}
/// <summary>
/// Get AdvTrackCalc from a playlist href
/// </summary>
/// <param name="href"></param>
/// <returns></returns>
public async Task <AdvTrackCalc> GetAdvAudioFeatures(string href)
{
var advTrackCalc = new AdvTrackCalc();
var allArtId = new List <string>();
var allArt = new List <ArtistFull>();
var testTrack = new List <AdvTrack>();
var res = await GetPlaylistTracks("https://api.spotify.com/v1/playlists/" + href);
var tracks = new List <string>();
foreach (var t in res)
{
tracks.Add(t.Track.Id);
testTrack.Add(new AdvTrack()
{
Id = t.Track.Id,
Artist = t.Track.Artists.FirstOrDefault().Name,
Name = t.Track.Name
});
allArtId.Add(t.Track.Artists.FirstOrDefault().Id);
}
foreach (var id in allArtId)
{
allArt.Add(await GetArtistFull(id));
}
foreach (var art in allArt)
{
foreach (var g in art.Genres)
{
if (!advTrackCalc.GenreCount.ContainsKey(g))
{
advTrackCalc.GenreCount.Add(g, 0);
}
if (advTrackCalc.GenreCount.ContainsKey(g))
{
advTrackCalc.GenreCount[g]++;
}
}
}
var genreList = advTrackCalc.GenreCount.ToList();
genreList.Sort((x, y) => x.Value.CompareTo(y.Value));
advTrackCalc.GenreCount.Clear();
var limit = 5;
if (genreList.Count > limit)
{
genreList.RemoveRange(0, genreList.Count - limit);
}
foreach (var g in genreList)
{
advTrackCalc.GenreCount.Add(g.Key, g.Value);
}
//Jesus this is ugly
var advTracks = await GetAudioFeatures(tracks.ToArray());
advTrackCalc.Total = advTracks.Count;
foreach (var track in advTracks)
{
foreach (var t in testTrack)
{
if (track.Id == t.Id)
{
track.Name = t.Name;
track.Artist = t.Artist;
}
}
advTrackCalc.Acousticness.Add(track.Acousticness);
advTrackCalc.TotAcousticness += track.Acousticness;
advTrackCalc.Dance.Add(track.Danceability);
advTrackCalc.TotDance += track.Danceability;
advTrackCalc.Energy.Add(track.Energy);
advTrackCalc.TotEnergy += track.Energy;
advTrackCalc.Key.Add(track.Key);
advTrackCalc.TotKey += track.Key;
advTrackCalc.Mode.Add(track.Mode);
advTrackCalc.TotMode += track.Mode;
advTrackCalc.Loudness.Add(track.Loudness);
advTrackCalc.TotLoudness += track.Loudness;
advTrackCalc.Speechiness.Add(track.Speechiness);
advTrackCalc.TotSpeechiness += track.Speechiness;
advTrackCalc.Instrumentalness.Add(track.Instrumentalness);
advTrackCalc.TotInstrumentalness += track.Instrumentalness;
advTrackCalc.Liveness.Add(track.Liveness);
advTrackCalc.TotLiveness += track.Liveness;
advTrackCalc.Valence.Add(track.Valence);
advTrackCalc.TotValence += track.Valence;
advTrackCalc.Duration.Add(track.Duration_ms);
advTrackCalc.TotDuration += track.Duration_ms;
advTrackCalc.Tempo.Add(track.Tempo);
advTrackCalc.TotTempo += track.Tempo;
}
advTrackCalc.Tracks = advTracks;
advTrackCalc.AvgAcousticness = (advTrackCalc.TotAcousticness / advTrackCalc.Total);
advTrackCalc.AvgDance = (advTrackCalc.TotDance / advTrackCalc.Total);
advTrackCalc.AvgEnergy = (advTrackCalc.TotEnergy / advTrackCalc.Total);
advTrackCalc.AvgKey = (advTrackCalc.TotKey / advTrackCalc.Total);
advTrackCalc.AvgMode = (advTrackCalc.TotMode / advTrackCalc.Total);
advTrackCalc.AvgLoudness = (advTrackCalc.TotLoudness / advTrackCalc.Total);
advTrackCalc.AvgSpeechiness = (advTrackCalc.TotSpeechiness / advTrackCalc.Total);
advTrackCalc.AvgInstrumentalness = (advTrackCalc.TotInstrumentalness / advTrackCalc.Total);
advTrackCalc.AvgLiveness = (advTrackCalc.TotLiveness / advTrackCalc.Total);
advTrackCalc.AvgLoudness = (advTrackCalc.TotLoudness / advTrackCalc.Total);
advTrackCalc.AvgValence = (advTrackCalc.TotValence / advTrackCalc.Total);
advTrackCalc.AvgDuration = (advTrackCalc.TotDuration / advTrackCalc.Total);
advTrackCalc.AvgTempo = (advTrackCalc.TotTempo / advTrackCalc.Total);
advTrackCalc.StdAcousticness = (float?)advTrackCalc.GetStdDev(advTrackCalc.TotAcousticness / advTrackCalc.Total, advTrackCalc.Acousticness);
advTrackCalc.StdDance = (float?)advTrackCalc.GetStdDev(advTrackCalc.TotDance / advTrackCalc.Total, advTrackCalc.Dance);
advTrackCalc.StdEnergy = (float?)advTrackCalc.GetStdDev(advTrackCalc.TotEnergy / advTrackCalc.Total, advTrackCalc.Energy);
advTrackCalc.StdKey = (int?)advTrackCalc.GetStdDev(advTrackCalc.TotKey / advTrackCalc.Total, advTrackCalc.Key);
advTrackCalc.StdMode = (int?)advTrackCalc.GetStdDev(advTrackCalc.TotMode / advTrackCalc.Total, advTrackCalc.Mode);
advTrackCalc.StdLoudness = (float?)advTrackCalc.GetStdDev(advTrackCalc.TotLoudness / advTrackCalc.Total, advTrackCalc.Loudness);
advTrackCalc.StdSpeechiness = (float?)advTrackCalc.GetStdDev(advTrackCalc.TotSpeechiness / advTrackCalc.Total, advTrackCalc.Speechiness);
advTrackCalc.StdInstrumentalness = (float?)advTrackCalc.GetStdDev(advTrackCalc.TotInstrumentalness / advTrackCalc.Total, advTrackCalc.Instrumentalness);
advTrackCalc.StdLiveness = (float?)advTrackCalc.GetStdDev(advTrackCalc.TotLiveness / advTrackCalc.Total, advTrackCalc.Liveness);
advTrackCalc.StdLoudness = (float?)advTrackCalc.GetStdDev(advTrackCalc.TotLoudness / advTrackCalc.Total, advTrackCalc.Loudness);
advTrackCalc.StdValence = (float?)advTrackCalc.GetStdDev(advTrackCalc.TotValence / advTrackCalc.Total, advTrackCalc.Valence);
advTrackCalc.StdDuration = (int?)advTrackCalc.GetStdDev(advTrackCalc.TotDuration / advTrackCalc.Total, advTrackCalc.Duration);
advTrackCalc.StdTempo = (float?)advTrackCalc.GetStdDev(advTrackCalc.TotTempo / advTrackCalc.Total, advTrackCalc.Tempo);
return(advTrackCalc);
}
