private async Task<PlayableBase> GetTrack(FileInfo fileInfo, List<string> supportedExtensions)
{
var extension = fileInfo.Extension.Remove(0, 1);
//--- STEP 1: Check the track ---
//Check the extension
if (!supportedExtensions.Any(x => string.Equals(x, extension, StringComparison.OrdinalIgnoreCase)))
return null;
AudioInformation audioInformation = null;
//Check the file
if (
!(await
Task.Run(
() =>
_musicDataManager.MusicManager.AudioEngine.TestAudioFile(fileInfo.FullName,
out audioInformation)))) //If the audio engine can't open the track, skip
return null;
LocalPlayable track;
//--- STEP 2: Get information from the file ---
//Search if track is already in the database
if (SearchTrack(fileInfo.FullName, out track))
return track;
//Create a new track with some information we already have
track = new LocalPlayable
{
Extension = extension.ToUpper(),
TrackPath = fileInfo.FullName,
Duration = audioInformation.Duration,
SampleRate = Math.Round(audioInformation.SampleRate / 1000d, 1)
};
string filenameArtistName = null;
string tagArtistName = null;
string internetArtistName = null;
string albumName = null;
string title = null;
/*
Information priority:
1. Tag
2. Internet
3. Filename
*/
try
{
//Let's have a look in the tags
using (var tagLibInfo = File.Create(fileInfo.FullName)) //We look into the tags. Perhaps we'll find something interesting
{
track.Title = tagLibInfo.Tag.Title;
if (!string.IsNullOrEmpty(tagLibInfo.Tag.MusicBrainzArtistId))
track.Artist = await GetArtistByMusicBrainzId(tagLibInfo.Tag.MusicBrainzArtistId); //Ui, that's awesome
else
tagArtistName = tagLibInfo.Tag.FirstPerformer ?? tagLibInfo.Tag.FirstAlbumArtist; //Both is okay
if (tagLibInfo.Tag.Pictures.Any())
{
if (tagLibInfo.Tag.Pictures.Count() > 1)
Debug.Print("tagLibInfo.Tag.Pictures.Length > 1");
track.Cover = new TagImage(fileInfo.FullName);
}
track.Bitrate = tagLibInfo.Properties.AudioBitrate;
albumName = tagLibInfo.Tag.Album;
}
}
catch (Exception)
{
//Do nothing
}
//At the next step, the title must have a value
if (track.Title == null || (tagArtistName == null && track.Artist == null))
{
var match = Regex.Match(Path.GetFileNameWithoutExtension(fileInfo.FullName), @"(?<artist>([a-zA-Z].+?)) - (?<title>(.[^\(\[-]+))");
if (match.Success)
{
title = match.Groups["title"].Value.Trim();
if (tagArtistName == null)
filenameArtistName = match.Groups["artist"].Value;
}
else
{
title = Path.GetFileNameWithoutExtension(fileInfo.FullName);
if (tagArtistName == null)
filenameArtistName = string.Empty;
}
}
//Now we search the track in the internet. If we have find something, we set all information which has to be set
var trackInfo = await _musicDataManager.LastfmApi.GetTrackInformation(track.Title ?? title, track.Artist?.Name ?? tagArtistName ?? filenameArtistName);
if (trackInfo != null)
{
if (track.Title == null)
track.Title = trackInfo.Name;
if (!string.IsNullOrEmpty(trackInfo.MusicBrainzId))
{
var temp = SearchTrackByMusicBrainzId(trackInfo.MusicBrainzId);
if (temp != null)
return temp;
//Check if we already have a track with this id
track.MusicBrainzId = trackInfo.MusicBrainzId;
}
if (track.Cover == null)
track.Cover = trackInfo.CoverImage;
if (track.Artist == null)
{
track.Artist =
await SearchArtist(tagArtistName, trackInfo.Artist, filenameArtistName, track.MusicBrainzId);
if (track.Artist == null)
internetArtistName = trackInfo.Artist;
}
}
else if(track.Title == null)
{
track.Title = title;
}
if (track.Artist == null)
{
var name = tagArtistName ?? internetArtistName ?? filenameArtistName;
if (!string.IsNullOrEmpty(name))
{
var artist = await _musicDataManager.LastfmApi.SearchArtistOnline(name);
track.Artist = artist ?? new Artist(name);
}
else
{
track.Artist = _musicDataManager.Artists.UnknownArtist;
}
}
if (!_musicDataManager.Artists.ArtistDictionary.ContainsKey(track.Artist.Guid))
await _musicDataManager.Artists.AddArtist(track.Artist);
if (!string.IsNullOrWhiteSpace(albumName))
{
track.Album =
_musicDataManager.Albums.Collection.FirstOrDefault(
x =>
string.Equals(x.Value.Name, albumName,
StringComparison.OrdinalIgnoreCase)).Value;
if (track.Album == null)
{
var album = new Album
{
Name = albumName,
Guid = Guid.NewGuid()
};
await _musicDataManager.Albums.AddAlbum(album);
track.Album = album;
}
if (track.Artist != _musicDataManager.Artists.UnknownArtist &&
!track.Album.Artists.Contains(track.Artist))
{
track.Album.Artists.Add(track.Artist);
await _musicDataManager.Albums.UpdateAlbumArtists(track.Album);
}
}
await _musicDataManager.Tracks.AddTrack(track);
return track;
}
private bool SearchTrack(string path, out LocalPlayable playable)
{
foreach (var playableBase in _musicDataManager.Tracks.Tracks)
{
var localTrack = playableBase as LocalPlayable;
if (localTrack != null && localTrack.TrackPath == path)
{
playable = localTrack;
return true;
}
}
playable = null;
return false;
}