/// <summary>
/// Parses the metadata of the given <paramref name="files"/>.
/// </summary>
/// <param name="files">Files whose metadata to parse.</param>
/// <returns>Task.</returns>
private async Task ParseFiles(string[] files)
{
OnStatusUpdated("Trying to parse selected files...");
List <string> errors = new List <string>();
var newFiles = new List <LoadedFileViewModel>();
await Task.Run(() =>
{
foreach (string file in files)
{
try
{
if (SUPPORTEDFILES.Contains(Path.GetExtension(file).ToLower()))
{
ILocalFile audioFile = _localFileFactory.CreateFile(file);
if (string.IsNullOrEmpty(audioFile.Artist))
{
throw new Exception("No artist name found");
}
if (string.IsNullOrEmpty(audioFile.Track))
{
throw new Exception("No track name found");
}
var vm = new LoadedFileViewModel(audioFile);
vm.ToScrobbleChanged += Vm_ToScrobbleChanged;
newFiles.Add(vm);
}
}
catch (Exception ex)
{
errors.Add(string.Format("{0} {1}", file, ex.Message));
}
}
});
Scrobbles = new ObservableCollection <LoadedFileViewModel>(Scrobbles.Concat(newFiles));
if (errors.Count > 0)
{
OnStatusUpdated(string.Format("Finished parsing selected files. {0} files could not be parsed", errors.Count));
if (_windowManager.MessageBoxService.ShowDialog("Some files could not be parsed. Do you want to save a text file with the files that could not be parsed?",
"Error parsing files", IMessageBoxServiceButtons.YesNo) == IMessageBoxServiceResult.Yes)
{
IFileDialog sfd = _windowManager.CreateSaveFileDialog();
sfd.Filter = "Text Files|*.txt";
if (sfd.ShowDialog())
{
_fileOperator.WriteAllLines(sfd.FileName, errors.ToArray());
}
}
}
else
{
OnStatusUpdated("Successfully parsed selected files");
}
}
/// <summary>
/// Loads and parses a csv file.
/// </summary>
/// <returns>Task.</returns>
public async Task ParseCSVFile()
{
try
{
EnableControls = false;
OnStatusUpdated("Reading CSV file...");
Scrobbles.Clear();
using (ITextFieldParser parser = _parserFactory.CreateParser(CSVFilePath))
{
parser.SetDelimiters(Settings.Default.CSVDelimiters.Select(x => new string(x, 1)).ToArray());
string[] fields = null;
List <string> errors = new List <string>();
ObservableCollection <ParsedCSVScrobbleViewModel> parsedScrobbles = new ObservableCollection <ParsedCSVScrobbleViewModel>();
await Task.Run(() =>
{
while (!parser.EndOfData)
{
try
{
fields = parser.ReadFields();
string dateString = fields[Settings.Default.TimestampFieldIndex];
// check for 'now playing'
if (dateString == "" && ScrobbleMode == CSVScrobbleMode.Normal)
{
continue;
}
DateTime date = DateTime.Now;
if (!DateTime.TryParse(dateString, out date))
{
bool parsed = false;
// try different formats until succeeded
foreach (string format in _formats)
{
parsed = DateTime.TryParseExact(dateString, format, CultureInfo.CurrentCulture, DateTimeStyles.None, out date);
if (parsed)
{
break;
}
}
if (!parsed && ScrobbleMode == CSVScrobbleMode.Normal)
{
throw new Exception("Timestamp could not be parsed!");
}
}
// try to get optional parameters first
string album = fields.ElementAtOrDefault(Settings.Default.AlbumFieldIndex);
string albumArtist = fields.ElementAtOrDefault(Settings.Default.AlbumArtistFieldIndex);
string duration = fields.ElementAtOrDefault(Settings.Default.DurationFieldIndex);
TimeSpan time = TimeSpan.FromSeconds(Duration);
TimeSpan.TryParse(duration, out time);
DatedScrobble parsedScrobble = new DatedScrobble(date.AddSeconds(1), fields[Settings.Default.TrackFieldIndex],
fields[Settings.Default.ArtistFieldIndex], album,
albumArtist, time);
parsedScrobbles.Add(new ParsedCSVScrobbleViewModel(parsedScrobble, ScrobbleMode));
}
catch (Exception ex)
{
string errorString = "CSV line number: " + parser.LineNumber + ",";
foreach (string s in fields)
{
errorString += s + ",";
}
errorString += ex.Message;
errors.Add(errorString);
}
}
});
if (errors.Count == 0)
{
OnStatusUpdated(string.Format("Successfully parsed CSV file. Parsed {0} rows", parsedScrobbles.Count));
}
else
{
OnStatusUpdated(string.Format("Partially parsed CSV file. {0} rows could not be parsed", errors.Count));
if (_windowManager.MessageBoxService.ShowDialog("Some rows could not be parsed. Do you want to save a text file with the rows that could not be parsed?",
"Error parsing rows", IMessageBoxServiceButtons.YesNo) == IMessageBoxServiceResult.Yes)
{
IFileDialog sfd = _windowManager.CreateSaveFileDialog();
sfd.Filter = "Text Files|*.txt";
if (sfd.ShowDialog())
{
_fileOperator.WriteAllLines(sfd.FileName, errors.ToArray());
}
}
}
Scrobbles = parsedScrobbles;
}
}
catch (Exception ex)
{
Scrobbles.Clear();
OnStatusUpdated(string.Format("Error parsing CSV file: {0}", ex.Message));
}
finally
{
EnableControls = true;
}
}
