/// <summary>
/// Zips the folder to backup and load it to one drive.
/// </summary>
/// <returns></returns>
private async Task UploadBackupAsync()
{
BackupIsIndeterminate = true;
BackupStatusText = "Create backup ...";
if (await localStorageService.GetFolderAsync(DataPath) == null)
{
throw new Exception("Local data path does not exit.");
}
try
{
await zipArchiveService.CompressAsync(DataPath, uploadZip);
}
catch
{
await new MessageDialog("Could not create a backup.", "OneDrive Backup").ShowAsync();
BackupIsIndeterminate = false;
BackupStatusText = string.Empty;
return;
}
var file = await localStorageService.GetFileAsync(uploadZip);
using (var stream = await file.OpenStreamForReadAsync())
{
BackupStatusText = $"Uploading Backup (total: {stream.Length} bytes) ...";
}
bool upload = true;
try
{
// Check if an item with the same name already exists.
var item = await oneDriveService.GetItemByPathAsync(UploadPath);
if (item != null)
{
var dialog = new MessageDialog($"An backup with the name \"{UploadName}.bak\" already exists.", "OneDrive Backup");
dialog.Commands.Add(new UICommand("Override", null, "Override"));
dialog.Commands.Add(new UICommand("Cancel", null, "Cancel"));
if ((await dialog.ShowAsync()).Id.ToString() == "Cancel")
{
upload = false;
}
}
if (upload)
{
var stream = await file.OpenStreamForReadAsync();
var result = await oneDriveService.UploadFileByPathAsync(UploadPath, stream);
if (result != null)
{
// TODO: Evaluate if using toast notifications instead.
await new MessageDialog("The backup was sucessfully created.", "OneDrive Backup").ShowAsync();
}
else
{
await new MessageDialog("An error occured while uploading a backup. Please try again later.", "OneDrive Backup").ShowAsync();
}
}
}
catch (Exception)
{
await new MessageDialog("An error occured while uploading a backup. Please try again later.", "OneDrive Backup").ShowAsync();
}
UploadName = string.Empty;
BackupIsIndeterminate = false;
BackupStatusText = string.Empty;
}