private async Task <string[]> SaveImageAttachmentsAsync()
{
var newImages = ImageAttachments.OfType <EditingNewImageAttachmentViewModel>().ToArray();
if (_removedImageAttachments.Count > 0 || newImages.Length > 0)
{
var currAccount = Account;
if (currAccount == null)
{
throw new NullReferenceException("Account was null");
}
IFolder imagesFolderPortable = await FileHelper.GetOrCreateImagesFolder(currAccount.LocalAccountId);
List <string> finalImageNames = ImageAttachments.Select(i => i.ImageAttachment.ImageName).ToList();
// Delete images
foreach (var removedImage in _removedImageAttachments)
{
try
{
var file = await imagesFolderPortable.GetFileAsync(removedImage.ImageAttachment.ImageName);
await file.DeleteAsync();
}
catch (Exception ex)
{
TelemetryExtension.Current?.TrackException(ex);
}
}
// Add new images
foreach (var newImage in newImages)
{
try
{
await newImage.TempFile.MoveAsync(Path.Combine(imagesFolderPortable.Path, newImage.TempFile.Name), NameCollisionOption.ReplaceExisting);
if (newImage.TempFile is Helpers.TempFile tempFile)
{
tempFile.DetachTempDisposer();
}
}
catch (Exception ex)
{
TelemetryExtension.Current?.TrackException(ex);
try
{
finalImageNames.Remove(newImage.ImageAttachment.ImageName);
}
catch { }
}
}
// If there were new images, add them to the needing upload list
var newImageNames = newImages.Select(i => i.ImageAttachment.ImageName).Intersect(finalImageNames).ToArray();
if (newImageNames.Any())
{
var dataStore = await AccountDataStore.Get(currAccount.LocalAccountId);
await dataStore.AddImagesToUploadAsync(newImageNames);
}
return(finalImageNames.ToArray());
}
else
{
return(null);
}
}
/// <summary>
/// Updates the counters for the file and image attachments
/// </summary>
public void UpdateAttachmentCounts()
{
AttachmentFilesCount = FileAttachments.Count();
AttachmentImagesCount = ImageAttachments.Count();
}