private BitmapImage GetCover(TrackEntity t)
{
var id = AlbumCoverId(t);
if (_database.FileStorage.Exists(id))
{
using (var stream = new MemoryStream())
{
_database.FileStorage.Download(id, stream);
stream.Seek(0, SeekOrigin.Begin);
BitmapImage ret = new BitmapImage();
ret.BeginInit();
ret.StreamSource = stream;
ret.DecodePixelWidth = 300;
ret.EndInit();
return(ret);
}
}
else
{
return(null);
}
}
private string AlbumCoverId(TrackEntity t)
{
var input = t.AlbumArtist + " - " + t.Album;
var hash = (new System.Security.Cryptography.SHA1Managed()).ComputeHash(Encoding.UTF8.GetBytes(input));
return(string.Join("", hash.Select(b => b.ToString("x2")).ToArray()));
}
private void CalculateHash(ref TrackEntity s)
{
s.Hash = string.Empty;
using (var xml = new System.IO.StringWriter())
{
var xs = new System.Xml.Serialization.XmlSerializer(typeof(TrackEntity));
xs.Serialize(xml, s);
var hash = (new System.Security.Cryptography.SHA1Managed()).ComputeHash(Encoding.UTF8.GetBytes(xml.ToString()));
s.Hash = string.Join("", hash.Select(b => b.ToString("x2")).ToArray());
}
}
/// <summary>
/// Add files to database
/// </summary>
/// <param name="filenames">Filenames to add</param>
public async Task AddFiles(IEnumerable <string> filenames)
{
var errors = new StringBuilder();
foreach (var file in filenames)
{
try
{
using (File f = File.Create(file))
{
var song = new TrackEntity
{
AddDate = DateTime.Now,
Album = f.Tag.Album,
Artist = f.Tag.JoinedPerformers,
AlbumArtist = f.Tag.FirstAlbumArtist,
Comment = f.Tag.Comment,
Disc = f.Tag.Disc,
Track = f.Tag.Track,
FileSize = f.Length,
Generire = f.Tag.FirstGenre,
Length = f.Properties.Duration.TotalSeconds,
LastPlay = DateTime.MinValue,
Path = file,
PlayCounter = 0,
Rating = null,
Year = f.Tag.Year,
Title = f.Tag.Title
};
CalculateHash(ref song);
_tracks.Insert(song);
await AddCoverIfNotExist(f.Tag);
}
}
catch (Exception ex)
{
errors.AppendLine(ex.Message);
}
}
DatabaseCache.Refresh();
WriteCache();
if (errors.Length > 0)
{
throw new DBException(errors);
}
}
public void UpdateTrackPlayInfo(TrackEntity selectedTrack)
{
selectedTrack.LastPlay = DateTime.Now;
selectedTrack.PlayCounter += 1;
// _tracks.Update(selectedTrack);
}
