public async Task <List <Id3Tag> > GetFilesFromFolder()
{
var tagList = new List <Id3Tag>();
var folderPicker = new FolderPicker
{
SuggestedStartLocation = PickerLocationId.Desktop,
ViewMode = PickerViewMode.List
};
folderPicker.FileTypeFilter.Add(".mp3");
var selectedFolder = await folderPicker.PickSingleFolderAsync();
if (selectedFolder != null)
{
StorageApplicationPermissions.FutureAccessList.AddOrReplace("PickerFolderToken", selectedFolder);
await Task.Run(async() =>
{
var files = await selectedFolder.GetFilesAsync();
foreach (var mediaFile in files)
{
var file = new Mp3File(mediaFile.Path, Mp3Permissions.ReadWrite);
tagList.Add(file.HasTagOfFamily(Id3TagFamily.Version2x) ? file.GetTag(Id3TagFamily.Version2x) : file.GetTag(Id3TagFamily.Version1x));
file.Dispose();
}
});
}
return(tagList);
}
// Used to remove records that no longer have existing files
public int syncMusicFiles()
{
// Directories to add
List<String> directories = new List<String>();
directories.Add(@"D:\Music");
directories.Add(@"D:\mp3s");
// Get all files
List<String> files = new List<String>();
foreach (String directory in directories) {
List<String> items = Directory.GetFiles(directory, "*.mp3", SearchOption.AllDirectories).ToList<String>();
foreach(String item in items) {
files.Add(item);
}
}
Debug.WriteLine("Found: " + files.Count + " Files");
// Get ALL records in database
List<MusicFile> rows = gdc.MusicFiles.ToList<MusicFile>();
Debug.WriteLine(rows.Count());
// Mark items for deletion
foreach (MusicFile row in rows)
{
// If the physical file doesn't exist, remove it from the database
if (!files.Contains(row.Filename))
{
Debug.WriteLine("Deleting File: '" + row.Filename + "'");
gdc.MusicFiles.Remove(row);
}
}
// Process deletion
gdc.SaveChanges();
// Edit existing records
foreach (MusicFile row in rows)
{
// Skip files that don't already exist
if (!files.Contains(row.Filename))
{
continue;
}
// Get ID3 tag information
Mp3File mp3 = new Mp3File(row.Filename);
Id3Tag tag = mp3.GetTag(Id3TagFamily.FileStartTag);
try {
// Set ID3 tag information
row.Title = tag.Title.Value;
row.Album = tag.Album.Value;
row.Artists = tag.Artists.Value;
row.Genres = tag.Genre.Value;
//row.Duration = mp3.Audio.Duration.ToString("g");
// Dispose object?
mp3.Dispose();
Debug.WriteLine("Editing file: '" + row.Filename + "'");
Debug.WriteLine("File Duration: '" + mp3.Audio.Duration.ToString("g") + "'");
}
catch (NullReferenceException e) {
// Remove problematic files
gdc.MusicFiles.Remove(row);
}
}
// Get all filenames currently in the data set
var existingFilenames = from row in rows
select row.Filename;
// Add new records
foreach (String file in files)
{
// Skip adding items that already exist
if(existingFilenames.Contains(file)) {
continue;
}
try
{
// Get ID3 tag information
Mp3File mp3 = new Mp3File(file);
Id3Tag tag = mp3.GetTag(Id3TagFamily.FileStartTag);
// Set ID3 tag information
MusicFile mf = gdc.MusicFiles.Create();
mf.Id = Guid.NewGuid();
mf.Filename = file;
mf.Title = tag.Title.Value;
mf.Album = tag.Album.Value;
mf.Artists = tag.Artists.Value;
mf.Genres = tag.Genre.Value;
//mf.Duration = mp3.Audio.Duration.ToString("g");
// Dispose object?
mp3.Dispose();
// Add the new record
gdc.MusicFiles.Add(mf);
Debug.WriteLine("Adding file: '" + file + "'");
}
catch (Exception e) {
Debug.WriteLine("Unable to add file: '" + file + "'");
}
}
// Write changes to database
return gdc.SaveChanges();
}
