public async Task <ExtractProgramResult> ExtractProgram(CancellationToken taskCancellationToken)
{
ExtractProgramResult _extractResult = new ExtractProgramResult {
Status = ExtractProgramStatus.Success
};
try
{
if (_programStream == null && _onlineProgramHeader == null)
{
throw new Exception(
"SetProgramStream or SetDownloadHeader have to be called before calling StartImportProgram.");
}
if (_programStream == null && _onlineProgramHeader == null)
{
throw new Exception("SetProgramStream and SetDownloadHeader cannot be used together.");
}
// old simple portable downloader
var cancellationTokenSource = new CancellationTokenSource();
if (_onlineProgramHeader != null)
{
_programStream = await Task.Run(() => ServiceLocator.WebCommunicationService.DownloadAsync(
_onlineProgramHeader.DownloadUrl, _onlineProgramHeader.ProjectName, cancellationTokenSource.Token), taskCancellationToken);
}
// new downloader
//if (_onlineProgramHeader != null)
//{
// await Task.Run(() => ServiceLocator.WebCommunicationService.DownloadAsyncAlternativ(
// _onlineProgramHeader.DownloadUrl, _onlineProgramHeader.ProjectName), taskCancellationToken);
//}
//using (var storage = StorageSystem.GetStorage())
//{
// var stream = await storage.OpenFileAsync(Path.Combine(StorageConstants.TempProgramImportZipPath, _onlineProgramHeader.ProjectName + ".catrobat"),
// StorageFileMode.Open, StorageFileAccess.Read);
// await ServiceLocator.ZipService.UnzipCatrobatPackageIntoIsolatedStorage(
// stream, StorageConstants.TempProgramImportPath);
//}
if (_cancellationTokenSource.Token.IsCancellationRequested == false)
{
await ServiceLocator.ZipService.UnzipCatrobatPackageIntoIsolatedStorage(
_programStream, StorageConstants.TempProgramImportPath);
}
}
catch (Exception)
{
_extractResult.Status = ExtractProgramStatus.Error;
}
using (var storage = StorageSystem.GetStorage())
{
await storage.DeleteDirectoryAsync(StorageConstants.TempProgramImportZipPath);
}
return(_extractResult);
}
public async Task TryImportWithStatusNotifications()
{
_cancellationTokenSource = new CancellationTokenSource();
Debug.WriteLine("Starting with ExtractProgram");
ExtractProgramResult extractionResult = await ServiceLocator.ProgramImportService.ExtractProgram(_cancellationTokenSource.Token);
if (_cancellationTokenSource.Token.IsCancellationRequested == true)
{
await CleanUpImport();
return;
}
if (extractionResult.Status == ExtractProgramStatus.Error)
{
ServiceLocator.NotifictionService.ShowToastNotification(
AppResourcesHelper.Get("Import_ProgramDamaged"),
AppResourcesHelper.Get("Import_CatrobatDamagedText"),
ToastDisplayDuration.Long);
return;
}
Debug.WriteLine("Starting with CheckProgram");
var validateResult = await ServiceLocator.ProgramValidationService.CheckProgram(StorageConstants.TempProgramImportPath);
if (_cancellationTokenSource.Token.IsCancellationRequested == true)
{
await CleanUpImport();
return;
}
switch (validateResult.State)
{
case ProgramState.Valid:
_programName = validateResult.ProgramHeader.ProjectName;
break;
case ProgramState.Damaged:
ServiceLocator.NotifictionService.ShowToastNotification("",
AppResourcesHelper.Get("Import_ProgramDamaged"),
ToastDisplayDuration.Long);
break;
case ProgramState.VersionTooOld:
ServiceLocator.NotifictionService.ShowToastNotification("",
AppResourcesHelper.Get("Import_ProgramOutdated"),
ToastDisplayDuration.Long);
break;
case ProgramState.VersionTooNew:
ServiceLocator.NotifictionService.ShowToastNotification("",
AppResourcesHelper.Get("Import_AppTooOld"),
ToastDisplayDuration.Long);
break;
case ProgramState.ErrorInThisApp:
ServiceLocator.NotifictionService.ShowToastNotification("",
AppResourcesHelper.Get("Import_GeneralError"),
ToastDisplayDuration.Long);
break;
case ProgramState.Unknown:
ServiceLocator.NotifictionService.ShowToastNotification("",
AppResourcesHelper.Get("Import_GeneralError"),
ToastDisplayDuration.Long);
break;
case ProgramState.FilesMissing:
ServiceLocator.NotifictionService.ShowMessageBox(AppResourcesHelper.Get("Import_Canceled"),
AppResourcesHelper.Get("Import_FilesMissing"), MissingFilesCallback, MessageBoxOptions.Ok);
return;
default:
throw new ArgumentOutOfRangeException();
}
Debug.WriteLine("Starting with AcceptTempProgram");
await ServiceLocator.ProgramImportService.AcceptTempProgram();
var localProgramsChangedMessage = new MessageBase();
Messenger.Default.Send(localProgramsChangedMessage,
ViewModelMessagingToken.LocalProgramsChangedListener);
ServiceLocator.NotifictionService.ShowToastNotification("",
AppResourcesHelper.Get("Import_ProgramAdded"),
ToastDisplayDuration.Long,
ToastTag.ImportFin);
Debug.WriteLine("Finished");
}
