private static void MainProcess(Mp3 mp3, string mp3Path, string[] images)
{
var tag = mp3.GetTag(Id3TagFamily.Version2X);
if (tag == null)
{
tag = new Id3Tag();
if (!mp3.WriteTag(tag, Id3Version.V23, WriteConflictAction.Replace))
{
ShowError($"Failed to create tag to mp3 file.");
}
}
// ask option
bool addCover;
bool removeFirst;
var originCoverCount = tag.Pictures.Count;
if (originCoverCount == 0)
{
var ok = MessageBoxEx.Show($"There is no cover in the given mp3 file, would you want to add the given {images.Length} cover(s) to this mp3 file?",
MessageBoxButtons.OKCancel, MessageBoxIcon.Exclamation, new string[] { "&Add", "&Cancel" });
addCover = ok == DialogResult.OK;
removeFirst = false;
}
else
{
var ok = MessageBoxEx.Show($"The mp3 file has {originCoverCount} cover(s), would you want to remove it first, and add the given {images.Length} cover(s) to this mp3 file?",
MessageBoxButtons.YesNoCancel, MessageBoxIcon.Exclamation, new string[] { "&Replace", "&Append", "&Cancel" });
addCover = ok != DialogResult.Cancel;
removeFirst = ok == DialogResult.Yes;
}
// handle tag
if (!addCover)
{
return;
}
if (removeFirst)
{
tag.Pictures.Clear();
}
foreach (var image in images)
{
var extension = Path.GetExtension(image).ToLower();
var mime = "image/";
if (extension == ".png")
{
mime = "image/png";
}
else if (extension == ".jpg" || extension == ".jpeg")
{
mime = "image/jpeg";
}
var newCover = new PictureFrame()
{
PictureType = PictureType.FrontCover,
MimeType = mime
};
try {
newCover.LoadImage(image);
} catch (Exception ex) {
ShowError($"Failed to load image: \"{image}\". Details:\n{ex}");
return;
}
tag.Pictures.Add(newCover);
}
// write tag
mp3.DeleteTag(Id3TagFamily.Version2X);
if (!mp3.WriteTag(tag, Id3Version.V23, WriteConflictAction.Replace))
{
ShowError($"Failed to write cover(s) to mp3 file.");
return;
}
string msg;
if (removeFirst)
{
msg = $"Success to remove {originCoverCount} cover(s) and add {images.Length} cover(s) to mp3 file \"{mp3Path}\".";
}
else if (originCoverCount != 0)
{
msg = $"Success to add {images.Length} cover(s), now there are {images.Length + originCoverCount} covers in the mp3 file \"{mp3Path}\".";
}
else
{
msg = $"Success to add {images.Length} cover(s) to mp3 file \"{mp3Path}\".";
}
MessageBoxEx.Show(msg, MessageBoxButtons.OK, MessageBoxIcon.Information);
}