/// <summary>
/// Upload files to MEGA Cloud Service
/// </summary>
public static async void Upload()
{
SdkService.MegaSdk.retryPendingConnections();
// Get the date of the last uploaded file
// Needed so that we do not upload the same file twice
var lastUploadDate = SettingsService.LoadSettingFromFile <DateTime>("LastUploadDate");
// Open the phone's Media Library
MediaLibrary mediaLibrary;
try { mediaLibrary = new MediaLibrary(); }
catch (Exception e)
{
// Error opening the Media Library
LogService.Log(MLogLevel.LOG_LEVEL_ERROR, "Error opening the Media Library", e);
scheduledAgent.NotifyComplete();
return;
}
using (mediaLibrary)
{
List <Picture> pictures;
var selectDate = lastUploadDate;
// Find all pictures taken after the last upload date
try { pictures = mediaLibrary.Pictures.Where(p => p.Date > selectDate).OrderBy(p => p.Date).ToList(); }
catch (Exception e)
{
// Error getting the pictures taken after the last upload date
LogService.Log(MLogLevel.LOG_LEVEL_ERROR, "Error getting pictures from the media library", e);
scheduledAgent.NotifyComplete();
return;
}
if (!pictures.Any())
{
// No pictures is not an error. Maybe all pictures have already been uploaded
// Just finish the task for this run
LogService.Log(MLogLevel.LOG_LEVEL_INFO, "No new items to upload");
scheduledAgent.NotifyComplete();
return;
}
var cameraUploadNode = await scheduledAgent.GetCameraUploadsNode();
if (cameraUploadNode == null)
{
// No camera upload node found or created
// Just finish this run and try again next time
LogService.Log(MLogLevel.LOG_LEVEL_ERROR, "No camera uploads folder");
scheduledAgent.NotifyComplete();
return;
}
// Loop all available pictures for upload action
foreach (var picture in pictures)
{
try
{
// Retreive the picture bytes as stream
using (var imageStream = picture.GetImage())
{
// Make sure the stream pointer is at the start of the stream
imageStream.Position = 0;
// Calculate time for fingerprint check
DateTime origin = new DateTime(1970, 1, 1, 0, 0, 0, 0, DateTimeKind.Utc);
TimeSpan diff = picture.Date.ToUniversalTime() - origin;
ulong mtime = (ulong)Math.Floor(diff.TotalSeconds);
// Get the unique fingerprint of the file
string fingerprint = SdkService.MegaSdk.getFileFingerprint(new MegaInputStream(imageStream), mtime);
// Check if the fingerprint is already in the subfolders of the Camera Uploads
var mNode = SdkService.MegaSdk.getNodeByFingerprint(fingerprint, cameraUploadNode);
// If node already exists then save the node date and proceed with the next node
if (mNode != null)
{
SettingsService.SaveSettingToFile <DateTime>("LastUploadDate", picture.Date);
continue; // skip to next picture
}
// Create a temporary local path to save the picture for upload
string newFilePath = Path.Combine(scheduledAgent.GetTemporaryUploadFolder(), picture.Name);
// Reset back to start
// Because fingerprint action has moved the position
imageStream.Position = 0;
// Copy file to local storage to be able to upload
using (var fs = new FileStream(newFilePath, FileMode.Create))
{
await imageStream.CopyToAsync(fs);
await fs.FlushAsync();
fs.Close();
}
// Init the upload
SdkService.MegaSdk.startUploadWithMtimeTempSource(newFilePath, cameraUploadNode, mtime, true);
break;
}
}
catch (OutOfMemoryException e)
{
// Something went wrong (could be memory limit)
// Just finish this run and try again next time
LogService.Log(MLogLevel.LOG_LEVEL_ERROR, "Error during the item upload", e);
scheduledAgent.NotifyComplete();
}
catch (Exception e)
{
// Send log, process the error and try again
LogService.Log(MLogLevel.LOG_LEVEL_ERROR, "Error during the item upload", e);
ErrorProcessingService.ProcessFileError(picture.Name, picture.Date);
Upload();
return;
}
}
}
}
