public static void GetDiffs(List<string> filePaths, System.ComponentModel.BackgroundWorker worker, out TagDiffs diffs, out FileErrors errors)
{
diffs = new TagDiffs();
errors = new FileErrors();
int index = 0;
int total = filePaths.Count();
foreach (var filePath in filePaths)
{
if (worker.CancellationPending) return;
index += 1;
worker.ReportProgress(index*100/total, filePath);
AddDiffs(diffs, errors, filePath);
}
}
private static void AddDiffs(TagDiffs diffs, FileErrors errors, string filePath)
{
TagLib.File file;
try
{
file = TagLib.File.Create(filePath);
}
catch (TagLib.CorruptFileException ex)
{
errors.Add(new FileError { FilePath = filePath, Message = ex.Message });
return;
}
var current = new Dictionary<Tags, string>();
var expected = new Dictionary<Tags, string>();
var folderPath = System.IO.Path.GetDirectoryName(filePath);
var parts = folderPath.Split('\\');
expected.Add(Tags.Album, parts[parts.Length - 1]);
expected.Add(Tags.Performers, parts[parts.Length - 2]);
expected.Add(Tags.AlbumArtists, parts[parts.Length - 2]);
expected.Add(Tags.Genre, parts[parts.Length - 3]);
expected.Add(Tags.Title, System.IO.Path.GetFileNameWithoutExtension(filePath));
current.Add(Tags.Album, file.Tag.Album);
current.Add(Tags.Performers, String.Join(";", file.Tag.Performers));
current.Add(Tags.AlbumArtists, String.Join(";", file.Tag.AlbumArtists));
current.Add(Tags.Genre, String.Join(";", file.Tag.Genres));
current.Add(Tags.Title, file.Tag.Title);
foreach (var tag in expected.Keys)
{
if (expected[tag] != current[tag])
{
var diff = new TagDiff();
diff.Tag = tag;
diff.FilePath = filePath;
diff.OldValue = current[tag];
diff.NewValue = expected[tag];
diffs.Add(diff);
}
}
}
private static void WriteDiff(string filePath, TagDiffs diffs)
{
var file = TagLib.File.Create(filePath);
foreach (var diff in diffs)
{
switch (diff.Tag)
{
case Tags.Genre:
file.Tag.Genres = new string[] { diff.NewValue };
break;
case Tags.Performers:
file.Tag.Performers = new string[] { diff.NewValue };
break;
case Tags.Album:
// if (diff.NewValue != null && diff.NewValue.Length > 30) diff.NewValue = diff.NewValue.Substring(0, 30);
file.Tag.Album = diff.NewValue;
break;
case Tags.Title:
file.Tag.Title = diff.NewValue;
break;
case Tags.AlbumArtists:
file.Tag.AlbumArtists = new string[] { diff.NewValue };
break;
}
}
file.Save();
}
