protected override List <ExportError> ExportConversationAttachments(IConversation conversation, string exportFilename, out IAttachmentExportLocator exportLocator)
{
List <ExportError> exportErrors = new List <ExportError>();
string exportBasePath = Path.GetDirectoryName(exportFilename);
AttachmentExportLocator attachmentExportLocator = new AttachmentExportLocator(exportBasePath);
string attachmentDirectoryPath = null;
bool exportedVideoAttachment = false;
bool exportedAudioAttachment = false;
foreach (IConversationMessage message in conversation)
{
if (!message.HasAttachments())
{
continue;
}
if (attachmentDirectoryPath == null)
{
string attachmentDirectoryName = GenerateAttachmentExportDirectoryName(exportFilename);
attachmentDirectoryPath = Path.Combine(exportBasePath, attachmentDirectoryName);
attachmentDirectoryPath = FileCreator.CreateNewDirectoryWithRenameAttempts(attachmentDirectoryPath, _exportFileSystem, MaxRenameAttempts);
}
foreach (IMessageAttachment attachment in message.Attachments)
{
try
{
string exportedPath = ExportMessageAttachment(attachment, attachmentDirectoryPath);
attachmentExportLocator.AddAttachmentExportLocation(attachment, exportedPath);
if (attachment.Type == AttachmentType.Video)
{
exportedVideoAttachment = true;
}
else if (attachment.Type == AttachmentType.Audio)
{
exportedAudioAttachment = true;
}
}
catch (Exception ex)
{
exportErrors.Add(new ExportError(conversation, ex));
}
}
}
if (exportedVideoAttachment)
{
string videoIconPath = PlaceVideoIconFile(attachmentDirectoryPath);
attachmentExportLocator.AddFileExportLocation(VideoIconOutputFilename, videoIconPath);
}
if (exportedAudioAttachment)
{
string audioIconPath = PlaceAudioIconFile(attachmentDirectoryPath);
attachmentExportLocator.AddFileExportLocation(AudioIconOutputFilename, audioIconPath);
}
exportLocator = attachmentExportLocator;
return(exportErrors);
}
