public void RemovePlaylistTrack(Int64 trackInfoId)
{
TrackInfo trackToRemove = PlaylistTracks.First(t => t.Id == trackInfoId);
PlaylistTracks.Remove(trackToRemove);
this.StateHasChanged();
}
private async Task SavePlaylist()
{
string idList = string.Join("|", PlaylistTracks.Select(p => p.Id));
Wrap.Cookie playlistCookie = new Wrap.Cookie("playlist", JsRuntime);
await playlistCookie.Set(idList);
}
public async Task GetPlaylist(string playlistId)
{
//sets selected playlist
string playlistJson = await Globals.Requester.GetAsync($"https://api.spotify.com/v1/playlists/{playlistId}?limit=999");
Playlist playlist = JsonConvert.DeserializeObject <Playlist>(playlistJson);
SelectedPlaylist = playlist;
//gets playlist items
string playlistTracksJson = await Globals.Requester.GetAsync($"https://api.spotify.com/v1/playlists/{playlistId}/tracks?limit=99");
PlaylistTracks playlistTracks = JsonConvert.DeserializeObject <PlaylistTracks>(playlistTracksJson);
if (playlistTracks.total > 99)
{
int numLoops = (int)Math.Ceiling(Convert.ToDouble(playlistTracks.total) / 99.0);
for (int i = 1; i < numLoops; i++)
{
playlistTracksJson = await Globals.Requester.GetAsync($"https://api.spotify.com/v1/playlists/{playlistId}/tracks?limit=99&offset={99*i}");
PlaylistList playlistTracksOffset = JsonConvert.DeserializeObject <PlaylistList>(playlistTracksJson);
playlistTracks.items.AddRange(playlistTracksOffset.items.ToArray());
}
}
SelectedPlaylistTracks = playlistTracks;
}
public void DoubleclickPlaylistRow(TrackInfo track)
{
if (PlaylistTracks.Any(t => t.Id == track.Id))
{
return;
}
PlaylistTracks.Add(track);
}
public void SetCurrentTrackNext()
{
if (PlaylistTracks.Count <= 1)
{
return;
}
Data.CurrentTrack = PlaylistTracks[(PlaylistTracks.IndexOf(Data.CurrentTrack) + 1) % PlaylistTracks.Count];
}
private void OnEnded()
{
if (PlaylistTracks.Count <= 1)
{
return;
}
Data.CurrentTrack = PlaylistTracks[(PlaylistTracks.IndexOf(Data.CurrentTrack) + 1) % PlaylistTracks.Count];
}
protected void PlaylistRowClick(Int64 id)
{
if (Data.CurrentTrack != null && Data.CurrentTrack.Id == id || !PlaylistTracks.Any(t => t.Id == id))
{
return;
}
Data.CurrentTrack = PlaylistTracks.First(t => t.Id == id);
this.StateHasChanged();
}
private async void lnkGenerateObscure_LinkClicked(object sender, LinkLabelLinkClickedEventArgs e)
{
int firstPlaylistCount = Globals.DataStore.SelectedPlaylist.tracks.total;
NewPlaylistForm newPlaylistForm = new NewPlaylistForm(firstPlaylistCount);
newPlaylistForm.ShowDialog();
string playlistName = newPlaylistForm.Name_;
string playlistDescription = newPlaylistForm.Description;
//int numTracks = newPlaylistForm.NumTracks;
PlaylistTracks playlistTracks = Globals.DataStore.SelectedPlaylistTracks;
List <string> seedTrackIDs = GetPlaylistTrackIDs();
List <string> newTrackUris = new List <string>();
for (int i = 0; i < firstPlaylistCount; i += 5)
{
string recomUrl = $"https://api.spotify.com/v1/recommendations?limit=5&seed_tracks=";
for (int ii = 0; ii < 5; ii += 1)
{
if (seedTrackIDs.Count > i + ii)
{
recomUrl += $"{seedTrackIDs[i + ii]},";
}
}
if (recomUrl.Contains(','))
{
recomUrl = recomUrl.Remove(recomUrl.LastIndexOf(','));
}
recomUrl += "&target_popularity=0";
string recommendationJson = await Globals.Requester.GetAsync(recomUrl);
Recommendation recommendation = JsonConvert.DeserializeObject <Recommendation>(recommendationJson);
foreach (Track t in recommendation.tracks)
{
newTrackUris.Add(t.uri);
}
}
string uriPostContent = GetUriListJson(newTrackUris);
Playlist newPlaylist = await CreateNewPlaylist(playlistName, playlistDescription);
await PopulatePlaylistTracks(newPlaylist.id, uriPostContent);
newPlaylistForm.Dispose();
}
public async Task <TracksSearchResponse> GetPlaylistTracksAsync(string playlistID)
{
PlaylistTracks pt = await GetSpotifyResponseObject <PlaylistTracks>("playlists/" + playlistID + "/tracks?offset=" + OffsetSelector.GetRandomOffset());
TracksSearchResponse tsr = new TracksSearchResponse
{
Tracks = pt.Tracks.Select(x => x.Track).ToList()
};
return(tsr);
}
/// <summary>
/// Rebind the playlist to the view after it's been randified
/// </summary>
/// <returns></returns>
public async Task BindPlaylistAfterSort(List <PlaylistTrack> playlistTracks)
{
PlaylistTracks.Clear();
PlaylistTracks.AddRange(playlistTracks);
NumberOfLoadedTracks = PlaylistTracks.Count();
IsPlaylistLoading = false;
Stopwatch.Stop();
StateHasChanged();
}
protected void PlaylistRowRemoveClick(Int64 id)
{
if (!PlaylistTracks.Any(t => t.Id == id))
{
return;
}
if (Data.CurrentTrack != null && Data.CurrentTrack.Id == id)
{
SetCurrentTrackNext();
}
RemovePlaylistTrack(id);
}
protected void PreviousTrackClick()
{
if (PlaylistTracks.Count <= 1)
{
return;
}
if (PlaylistTracks.IndexOf(Data.CurrentTrack) == 0)
{
Data.CurrentTrack = PlaylistTracks[PlaylistTracks.Count - 1];
}
else
{
Data.CurrentTrack = PlaylistTracks[(PlaylistTracks.ToList().IndexOf(Data.CurrentTrack) - 1) % PlaylistTracks.Count];
}
}
protected void PlaylistRowDoubleClick(Int64 id)
{
if (Data.IsPlaying)
{
return;
}
Data.IsPlaying = true;
if (Data.CurrentTrack.Id == id || !PlaylistTracks.Any(t => t.Id == id))
{
this.StateHasChanged();
return;
}
Data.CurrentTrack = PlaylistTracks.First(t => t.Id == id);
this.StateHasChanged();
}
public static PlaylistTracks GetPlaylistTracks(string AccessToken, string UserId, string PlaylistId)
{
var client = new RestClient("https://api.spotify.com/v1");
var request = new RestRequest("users/{userid}/playlists/{playlistid}/tracks", Method.GET);
request.AddUrlSegment("userid", UserId);
request.AddUrlSegment("playlistid", PlaylistId);
request.AddHeader("Authorization", string.Format("Bearer {0}", AccessToken));
// execute api call and deserialize the results into the object
IRestResponse response = client.Execute(request);
PlaylistTracks tracks = new PlaylistTracks();
tracks = JsonConvert.DeserializeObject <PlaylistTracks>(response.Content);
return(tracks);
}
private async Task LoadPlaylist()
{
Wrap.Cookie playlistCookie = new Wrap.Cookie("playlist", JsRuntime);
string sidList = await playlistCookie.Get();
if (sidList != null)
{
(await Data.GetTracks(sidList)).ForEach(t =>
{
if (!PlaylistTracks.Any(p => p.Id == t.Id))
{
PlaylistTracks.Add(t);
}
});
}
if (PlaylistTracks.Count > 0)
{
this.StateHasChanged();
}
}
public void LoadPlaylist()
{
//playlist:
Playlist playlist = Globals.DataStore.SelectedPlaylist;
lblPlaylistName.Text = playlist.name;
//lblCreatedOn.Text = $"Created on: ";
lblPlaylistFollowers.Text = $"{playlist.followers.total.ToString()} followers";
lblAuthor.Text = $"By: {playlist.owner.display_name.ToString()}";
if (playlist.collaborative)
{
ckbCollab.Checked = true;
}
else
{
ckbCollab.Checked = false;
}
if (playlist.@public)
{
ckbPublic.Checked = true;
}
else
{
ckbPublic.Checked = false;
}
//playlist tracks:
PlaylistTracks playlistTracks = Globals.DataStore.SelectedPlaylistTracks;
foreach (Item item in playlistTracks.items)
{
dgvPlaylist.Rows.Add(item.track.name, item.added_at, item.added_by.id, item.track.id, item.added_by.id);
}
}
public Playlist(int ownerid, BindingList <BassTrack> tracks, string playlistName)
{
this.PlaylistTracks = new List <int>()
{
};
this.PlaylistTracksSerialized = new BindingList <BassTrack>()
{
};
this.OwnerId = ownerid;
foreach (BassTrack track in tracks)
{
this.PlaylistTracks.Add(track.TrackId);
}
foreach (BassTrack track in tracks)
{
this.PlaylistTracksSerialized.Add(track);
}
this.PlaylistName = playlistName;
this.PlaylistId = PlaylistName.GetHashCode() + PlaylistTracks.GetHashCode();
}
private async Task <PlaylistTracks> GetTracks(string token, string playlistid)
{
var request = new HttpRequestMessage(HttpMethod.Get, $"https://api.spotify.com/v1/browse/categories/{playlistid}/playlists");
request.Headers.Add("Authorization", $"Bearer {token}");
var client = ClientFactory.CreateClient();
var response = await client.SendAsync(request);
if (response.IsSuccessStatusCode)
{
var json = await response.Content.ReadAsStringAsync();
var playlists = Playlists.FromJson(json);
var firstList = playlists.PlaylistsPlaylists.Items.FirstOrDefault();
if (firstList != null)
{
request = new HttpRequestMessage(HttpMethod.Get, firstList.Tracks.Href);
request.Headers.Add("Authorization", $"Bearer {token}");
response = await client.SendAsync(request);
json = await response.Content.ReadAsStringAsync();
return(PlaylistTracks.FromJson(json));
}
return(null);
}
else if (response.StatusCode == System.Net.HttpStatusCode.Unauthorized)
{
throw new SpotifyTokenExpiredException();
}
else
{
throw new ApplicationException(response.StatusCode.ToString());
}
}
public JsonResult CraftPlaylistFromGenres(string AccessToken, string NameString, string[] GenreStringList)
{
List <string> NameList = NameString.Trim().Trim(',').Split(',').ToList();
double TotalDancability = 0.0;
int DancabilityCount = 0;
double TotalEnergy = 0.0;
int EnergyCount = 0;
double TotalSpeechiness = 0.0;
int SpeechinessCount = 0;
//SortedDictionary<string, int> Genres = new SortedDictionary<string, int>();
List <string> ArtistIds = new List <string>();
foreach (string name in NameList)
{
UserPlaylists playlists = APICalls.GetUsersPlaylists(AccessToken, name, 10);
List <string> TrackIds = new List <string>();
Random rand = new Random();
playlists.Playlists = playlists.Playlists.OrderBy(x => rand.Next()).Take(3).ToList();
foreach (Item pl in playlists.Playlists)
{
PlaylistTracks tracks = APICalls.GetPlaylistTracks(AccessToken, name, pl.id);
if (tracks.Songs != null)
{
foreach (PlaylistItem pli in tracks.Songs)
{
if (pli.track.id != null)
{
TrackIds.Add(pli.track.id);
}
if (pli.track.artists[0].id != null)
{
if (!ArtistIds.Contains(pli.track.artists[0].id))
{
ArtistIds.Add(pli.track.artists[0].id);
}
}
}
}
}
MultipleSongFeatures features = APICalls.GetMultipleSongFeatures(AccessToken, TrackIds);
foreach (AudioFeature af in features.features)
{
TotalDancability += af.danceability;
DancabilityCount++;
TotalEnergy += af.energy;
EnergyCount++;
TotalSpeechiness += af.speechiness;
SpeechinessCount++;
}
}
//var sortedDict = Genres.OrderByDescending(x => x.Value).Take(5).ToDictionary(x => x.Key, x => x.Value);
string GenreString = "";
foreach (string o in GenreStringList)
{
GenreString += o + ",";
}
GenreString = GenreString.Trim(',');
double AvgDancability = TotalDancability / DancabilityCount;
double AvgEnergy = TotalEnergy / EnergyCount;
double AvgSpeechiness = TotalSpeechiness / SpeechinessCount;
TracksBasedOnSeed SeededTracks = APICalls.GetPlaylistTracksByVariable(AccessToken, 40, AvgDancability, AvgEnergy, AvgSpeechiness, GenreString);
return(Json(new { Tracks = SeededTracks, AvgDancability = AvgDancability, AvgEnergy = AvgEnergy, AvgSpeechiness = AvgSpeechiness, Genres = GenreString.Replace(",", ", ") }));
}
void OnClick(int position)
{
if (UseChannel)
{
MainActivity.instance.SupportFragmentManager.BeginTransaction().Replace(Resource.Id.contentView, ChannelDetails.NewInstance(channels[position])).AddToBackStack("Channel Details").Commit();
}
else
{
MainActivity.instance.SupportFragmentManager.BeginTransaction().Replace(Resource.Id.contentView, PlaylistTracks.NewInstance(playlists[position])).AddToBackStack("Playlist Track").Commit();
}
}
/*
* public async Task<Recommendation> GetRecommendations()
* {
*
* }
*/
private async void lnkGenerateSimilar_LinkClicked(object sender, LinkLabelLinkClickedEventArgs e)
{
int firstPlaylistCount = Globals.DataStore.SelectedPlaylist.tracks.total;
NewPlaylistForm newPlaylistForm = new NewPlaylistForm(firstPlaylistCount);
newPlaylistForm.ShowDialog();
string playlistName = newPlaylistForm.Name_;
string playlistDescription = newPlaylistForm.Description;
//int numTracks = newPlaylistForm.NumTracks;
PlaylistTracks playlistTracks = Globals.DataStore.SelectedPlaylistTracks;
List <string> seedTrackIDs = GetPlaylistTrackIDs();
List <string> newTrackUris = new List <string>();
for (int i = 0; i < firstPlaylistCount; i += 5)
{
//TODO: only seeding w/ first 5 tracks for now
string recomUrl = $"https://api.spotify.com/v1/recommendations?limit=5&seed_tracks=";
for (int ii = 0; ii < 5; ii += 1)
{
if (seedTrackIDs.Count > i + ii)
{
recomUrl += $"{seedTrackIDs[i + ii]},";
}
}
if (recomUrl.Contains(','))
{
recomUrl = recomUrl.Remove(recomUrl.LastIndexOf(','));
}
string recommendationJson = await Globals.Requester.GetAsync(recomUrl);
Recommendation recommendation = JsonConvert.DeserializeObject <Recommendation>(recommendationJson);
foreach (Track t in recommendation.tracks)
{
newTrackUris.Add(t.uri);
}
}
string uriPostContent = GetUriListJson(newTrackUris);
Playlist newPlaylist = await CreateNewPlaylist(playlistName, playlistDescription);
await PopulatePlaylistTracks(newPlaylist.id, uriPostContent);
/*
* //this is working
* //maybe lets put this in a method with parameters so it can be used for the other generation methods
* //if that won't work or is too time-consuming it can be easily done in each event also
*/
newPlaylistForm.Dispose();
}
public void Add_TrackToPlaylist(string playlistname, string username, int trackid)
{
using (var context = new ChinookContext())
{
//does the playlist already exist
Playlist exists = (from x in context.Playlists
where x.UserName.Equals(username) &&
x.Name.Equals(playlistname)
select x).FirstOrDefault();
int tracknumber = 0;
PlaylistTracks newtrack = null;
if (exists == null)
{
//create the new Playlist
exists = new Playlist();
exists.Name = playlistname;
exists.UserName = username;
exists = context.Playlists.Add(exists);
tracknumber = 1;
}
else
{
//the playlist already exists
//and the query has given as the instance of that playlist from the DB
//generate the next tracknumber
tracknumber = exists.PlaylistTracks.Count();
//on our sample, playlist tracks for a playlist
//are unique
newtrack = exists.PlaylistTracks.SingleOrDefault(x => x.TrackId == trackid);
if (newtrack != null)
{
throw new Exception("Playlist already has a requested track.");
}
}
//this is a boom test
//remove after testing
//if (playlistname.Equals("Boom"))
//{
// throw new Exception("forced abort, check DB for Boom playlist");
//}
//you have a playlist
//you know the track will be unique
//create the new track
newtrack = new PlaylistTracks();
newtrack.TrackId = trackid;
newtrack.TrackNumber = tracknumber;
//since i am using the navigation property of the
//playlist to get to playlisttrack
//the savechanges will fill the playlistID
//from either the hashset or from the existing instance
exists.PlaylistTracks.Add(newtrack);
context.SaveChanges();
}
}
public override void OnBindViewHolder(RecyclerView.ViewHolder viewHolder, int position)
{
if (items[position].contentType == SectionType.SinglePlaylist)
{
LineSongHolder holder = (LineSongHolder)viewHolder;
items[position].recycler = holder.recycler;
holder.recycler.SetLayoutManager(new LinearLayoutManager(MainActivity.instance, LinearLayoutManager.Horizontal, false));
if (items[position].SectionTitle == "Queue")
{
holder.title.Text = MainActivity.instance.GetString(Resource.String.queue);
LineAdapter adapter = new LineAdapter(holder.recycler);
Home.instance.QueueAdapter = adapter;
holder.recycler.SetAdapter(adapter);
holder.more.Click += (sender, e) =>
{
MainActivity.instance.ShowPlayer();
Player.instance.ShowQueue();
};
if (MusicPlayer.CurrentID() != -1 && MusicPlayer.CurrentID() <= MusicPlayer.queue.Count)
{
holder.recycler.ScrollToPosition(MusicPlayer.CurrentID());
}
}
else if (items[position].SectionTitle == "Fav")
{
holder.title.Text = MainActivity.instance.GetString(Resource.String.favorite);
holder.recycler.SetAdapter(new LineAdapter(true, items[position].contentValue.GetRange(0, items[position].contentValue.Count > 20 ? 20 : items[position].contentValue.Count), holder.recycler));
holder.more.Click += (sender, e) =>
{
position = holder.AdapterPosition;
MainActivity.instance.SupportFragmentManager.BeginTransaction().Replace(Resource.Id.contentView, PlaylistTracks.NewInstance(items[position].contentValue, items[position].SectionTitle)).AddToBackStack(null).Commit();
};
}
else if (items[position].SectionTitle == null)
{
//The playlist is loading
holder.recycler.SetAdapter(new LineAdapter(new List <Song>(), holder.recycler));
}
else
{
holder.title.Text = items[position].SectionTitle;
holder.recycler.SetAdapter(new LineAdapter(items[position].contentValue.GetRange(0, items[position].contentValue.Count > 20 ? 20 : items[position].contentValue.Count), holder.recycler));
holder.more.Click += (sender, e) =>
{
position = holder.AdapterPosition;
if (items[position].playlist == null)
{
MainActivity.instance.SupportFragmentManager.BeginTransaction().Replace(Resource.Id.contentView, PlaylistTracks.NewInstance(items[position].contentValue, items[position].SectionTitle)).AddToBackStack(null).Commit();
}
else
{
MainActivity.instance.SupportFragmentManager.BeginTransaction().Replace(Resource.Id.contentView, PlaylistTracks.NewInstance(items[position].playlist)).AddToBackStack(null).Commit();
}
};
}
}
else if (items[position].contentType == SectionType.ChannelList)
{
LineSongHolder holder = (LineSongHolder)viewHolder;
items[position].recycler = holder.recycler;
holder.title.Text = items[position].SectionTitle;
holder.recycler.SetLayoutManager(new LinearLayoutManager(MainActivity.instance, LinearLayoutManager.Vertical, false));
if (items[position].channelContent != null)
{
holder.recycler.SetAdapter(new VerticalSectionAdapter(items[position].channelContent.GetRange(0, items[position].channelContent.Count > 4 ? 4 : items[position].channelContent.Count), holder.recycler));
if (items[position].channelContent.Count > 4)
{
holder.more.Visibility = ViewStates.Visible;
((GradientDrawable)holder.more.Background).SetStroke(5, Android.Content.Res.ColorStateList.ValueOf(Color.Argb(255, 21, 183, 237)));
holder.more.SetTextColor(Color.Argb(255, 21, 183, 237));
holder.more.Text = ((VerticalSectionAdapter)holder.recycler.GetAdapter()).channels.Count > 4 ? MainActivity.instance.GetString(Resource.String.view_less) : MainActivity.instance.GetString(Resource.String.view_more);
holder.more.Click += (sender, e) =>
{
VerticalSectionAdapter adapter = (VerticalSectionAdapter)holder.recycler.GetAdapter();
if (adapter.ItemCount == 4)
{
adapter.channels.AddRange(items[position].channelContent.GetRange(4, items[position].channelContent.Count - 4));
adapter.NotifyItemRangeInserted(4, items[position].channelContent.Count - 4);
holder.more.Text = MainActivity.instance.GetString(Resource.String.view_less);
}
else
{
int count = adapter.channels.Count - 4;
adapter.channels.RemoveRange(4, count);
adapter.NotifyItemRangeRemoved(4, count);
holder.more.Text = MainActivity.instance.GetString(Resource.String.view_more);
}
};
}
else
{
holder.more.Visibility = ViewStates.Gone;
}
}
else
{
holder.recycler.SetAdapter(new VerticalSectionAdapter(false, holder.recycler));
}
}
else if (items[position].contentType == SectionType.PlaylistList)
{
LineSongHolder holder = (LineSongHolder)viewHolder;
items[position].recycler = holder.recycler;
holder.title.Text = items[position].SectionTitle;
holder.recycler.SetLayoutManager(new LinearLayoutManager(MainActivity.instance, LinearLayoutManager.Vertical, false));
if (items[position].playlistContent != null)
{
holder.recycler.SetAdapter(new VerticalSectionAdapter(items[position].playlistContent.GetRange(0, items[position].playlistContent.Count > 4 ? 4 : items[position].playlistContent.Count), holder.recycler));
if (ChannelDetails.instance != null)
{
if (items[position].playlistContent.Count > 4)
{
holder.more.Visibility = ViewStates.Visible;
((GradientDrawable)holder.more.Background).SetStroke(5, Android.Content.Res.ColorStateList.ValueOf(Color.Argb(255, 21, 183, 237)));
holder.more.SetTextColor(Color.Argb(255, 21, 183, 237));
holder.more.Text = ((VerticalSectionAdapter)holder.recycler.GetAdapter()).playlists.Count > 4 ? MainActivity.instance.GetString(Resource.String.view_less) : MainActivity.instance.GetString(Resource.String.view_more);
holder.more.Click += (sender, e) =>
{
VerticalSectionAdapter adapter = (VerticalSectionAdapter)holder.recycler.GetAdapter();
if (adapter.ItemCount == 4)
{
adapter.playlists.AddRange(items[position].playlistContent.GetRange(4, items[position].playlistContent.Count - 4));
adapter.NotifyItemRangeInserted(4, items[position].playlistContent.Count - 4);
holder.more.Text = MainActivity.instance.GetString(Resource.String.view_less);
}
else
{
int count = adapter.playlists.Count - 4;
adapter.playlists.RemoveRange(4, count);
adapter.NotifyItemRangeRemoved(4, count);
holder.more.Text = MainActivity.instance.GetString(Resource.String.view_more);
}
};
}
else
{
holder.more.Visibility = ViewStates.Gone;
}
}
else
{
holder.more.Click += (sender, e) => { MainActivity.instance.FindViewById <BottomNavigationView>(Resource.Id.bottomView).SelectedItemId = Resource.Id.playlistLayout; };
holder.more.Visibility = ViewStates.Visible;
}
}
else
{
holder.recycler.SetAdapter(new VerticalSectionAdapter(true, holder.recycler));
holder.more.Visibility = ViewStates.Gone;
}
}
}
/// <summary>
/// Drop down list changed event to bind the playlist to the view
/// </summary>
/// <returns></returns>
public async Task BindPlaylist(ChangeEventArgs e)
{
if (IsRandifying || IsPlaylistLoading)
{
return;
}
var playlistId = e.Value.ToString();
try
{
IsPlaylistLoading = true;
Seconds = 0;
NumberOfLoadedTracks = 0;
Stopwatch = new Stopwatch();
Stopwatch.Start();
PlaylistTracks.Clear();
try
{
var tracks = new List <PlaylistTrack>();
CurrentPlaylist = Playlists.FirstOrDefault(o => o.Id == playlistId);
var page = await SpotifyService.GetPlaylistTracks(AuthenticationService.User, AuthenticationService.AuthenticationToken, CurrentPlaylist);
do
{
foreach (var playlistTrack in page.Items)
{
tracks.Add(playlistTrack);
}
Seconds = Stopwatch.Elapsed.Seconds;
NumberOfLoadedTracks = tracks.Count();
StateHasChanged();
if (page.HasNextPage)
{
page = await SpotifyService.GetNextPage(page, AuthenticationService.AuthenticationToken);
}
else
{
page = null;
}
}while (page != null);
PlaylistTracks = tracks;
}
catch (Exception ex)
{
PageException = ex;
}
NumberOfLoadedTracks = PlaylistTracks.Count();
IsPlaylistLoading = false;
Stopwatch.Stop();
StateHasChanged();
}
catch (Exception ex)
{
PageException = ex;
}
}
/// <summary>
/// Randomize the currently playlist, remove all of the tracks from the playlist, add all of the tracks back in a random order
/// </summary>
/// <returns></returns>
public async Task Randify()
{
if (IsRandifying || IsPlaylistLoading)
{
return;
}
IsRandifying = true;
var currentPlaylist = CurrentPlaylist;
var randomTracks = PlaylistTracks.ToList();
var listOfSkippedTracks = new List <PlaylistTrack>();
var tracks = new List <Track>();
// it looks overcomplicated and you're right, but the spotify endpoint has a limit of 100 songs
try
{
for (int i = 0; i < randomTracks.Count; i++)
{
if (!string.IsNullOrEmpty(randomTracks[i].Track.Id) && !string.IsNullOrWhiteSpace(randomTracks[i].Track.Id))
{
tracks.Add(randomTracks[i].Track);
}
else
{
listOfSkippedTracks.Add(randomTracks[i]);
}
if (i % 100 == 0)
{
await SpotifyService.RemoveTracksFromPlaylist(AuthenticationService.User, AuthenticationService.AuthenticationToken, currentPlaylist, tracks);
tracks.Clear();
}
}
await SpotifyService.RemoveTracksFromPlaylist(AuthenticationService.User, AuthenticationService.AuthenticationToken, currentPlaylist, tracks);
}
catch (Exception ex)
{
PageException = ex;
}
tracks.Clear();
randomTracks = randomTracks
.OrderBy(o => Guid.NewGuid())
.ToList();
// it looks overcomplicated and you're right, but the spotify endpoint has a limit of 100 songs
try
{
for (int i = 0; i < randomTracks.Count; i++)
{
if (!string.IsNullOrEmpty(randomTracks[i].Track.Id) && !string.IsNullOrWhiteSpace(randomTracks[i].Track.Id))
{
tracks.Add(randomTracks[i].Track);
}
if (i % 100 == 0)
{
await SpotifyService.AddTracksToPlaylist(AuthenticationService.User, AuthenticationService.AuthenticationToken, currentPlaylist, tracks);
tracks.Clear();
}
}
await SpotifyService.AddTracksToPlaylist(AuthenticationService.User, AuthenticationService.AuthenticationToken, currentPlaylist, tracks);
}
catch (Exception ex)
{
PageException = ex;
}
foreach (var skippedTrack in listOfSkippedTracks)
{
randomTracks.Remove(skippedTrack);
}
listOfSkippedTracks.Reverse();
foreach (var skippedTrack in listOfSkippedTracks)
{
randomTracks.Insert(0, skippedTrack);
}
IsRandifying = false;
await BindPlaylistAfterSort(randomTracks);
}
public JsonResult CraftPlaylist(string AccessToken, string NameString)
{
List <string> NameList = NameString.Trim().Trim(',').Split(',').ToList();
double TotalDancability = 0.0;
int DancabilityCount = 0;
double TotalEnergy = 0.0;
int EnergyCount = 0;
double TotalSpeechiness = 0.0;
int SpeechinessCount = 0;
SortedDictionary <string, int> Genres = new SortedDictionary <string, int>();
List <string> ArtistIds = new List <string>();
foreach (string name in NameList)
{
UserPlaylists playlists = APICalls.GetUsersPlaylists(AccessToken, name, 10);
List <string> TrackIds = new List <string>();
Random rand = new Random();
playlists.Playlists = playlists.Playlists.OrderBy(x => rand.Next()).Take(3).ToList();
foreach (Item pl in playlists.Playlists)
{
PlaylistTracks tracks = APICalls.GetPlaylistTracks(AccessToken, name, pl.id);
if (tracks.Songs != null)
{
foreach (PlaylistItem pli in tracks.Songs)
{
if (pli.track.id != null)
{
TrackIds.Add(pli.track.id);
}
if (pli.track.artists[0].id != null)
{
if (!ArtistIds.Contains(pli.track.artists[0].id))
{
ArtistIds.Add(pli.track.artists[0].id);
}
}
}
}
}
for (int i = 0; i <= ArtistIds.Count / 20; i++)
{
ArtistList artists = APICalls.GetArtistList(AccessToken, ArtistIds.Take(20).ToList());
if (artists.artists == null || artists.artists.Count == 0)
{
break;
}
foreach (FullArtist fa in artists.artists)
{
foreach (object o in fa.genres)
{
if (Genres.ContainsKey(o.ToString()))
{
Genres[o.ToString()]++;
}
else
{
Genres.Add(o.ToString(), 1);
}
}
}
try
{
for (int z = 1; z <= 20; z++)
{
ArtistIds.RemoveAt(0);
}
}
catch (Exception e)
{
}
}
MultipleSongFeatures features = APICalls.GetMultipleSongFeatures(AccessToken, TrackIds);
foreach (AudioFeature af in features.features)
{
TotalDancability += af.danceability;
DancabilityCount++;
TotalEnergy += af.energy;
EnergyCount++;
TotalSpeechiness += af.speechiness;
SpeechinessCount++;
}
}
var sortedDict = Genres.OrderByDescending(x => x.Value).Take(5).ToDictionary(x => x.Key, x => x.Value);
string GenreString = "";
foreach (KeyValuePair <string, int> o in sortedDict)
{
GenreString += o.Key + ",";
}
GenreString = GenreString.Trim(',');
double AvgDancability = TotalDancability / DancabilityCount;
double AvgEnergy = TotalEnergy / EnergyCount;
double AvgSpeechiness = TotalSpeechiness / SpeechinessCount;
TracksBasedOnSeed SeededTracks = APICalls.GetPlaylistTracksByVariable(AccessToken, 40, AvgDancability, AvgEnergy, AvgSpeechiness, GenreString);
return(Json(new { Tracks = SeededTracks, AvgDancability = AvgDancability, AvgEnergy = AvgEnergy, AvgSpeechiness = AvgSpeechiness, Genres = GenreString.Replace(",", ", ") }));
}