protected override async Task ExecuteInternal()
{
if (PackagesBuffer.Any())
{
Packages.AddRange(PackagesBuffer);
}
var history = Packages.Where(x => x.HistoryList != null).ToList();
if (history.Any(x => x.HistoryList.Any()))
{
Packages.AddRange(history.SelectMany(x => x.HistoryList));
Packages.RemoveAll(x => x.HistoryId.HasValue);
}
if (!Packages.Any())
{
return;
}
//root
var itemsToProcess = Packages.Where(x => Packages.All(y => y.UploadId != x.FolderId)).ToList();
while (itemsToProcess.Any())
{
foreach (var webSocketPackage in itemsToProcess)
{
await Process(webSocketPackage);
}
//remove processed
Packages.RemoveAll(x => itemsToProcess.Any(y => y.UploadId == x.UploadId));
//find next level items
var parentIdList = itemsToProcess.Where(x => x.UploadId.HasValue).Select(x => x.UploadId);
itemsToProcess = Packages.Where(x => parentIdList.Contains(x.FolderId)).ToList();
}
await FileRepository.SaveAsync();
}
private async Task ProcessCreated(WebSocketPackage webSocketPackage)
{
var file = await FileRepository.FindAsync(AccountObject.Token, webSocketPackage.UploadId);
if (file != null)
{
return;
}
var remoteFile = await Connection.GetUploadInfoAsync(AccountObject.Token, webSocketPackage.UploadId);
if (remoteFile == null || remoteFile.UploadList.Length == 0)
{
return;
}
file = new FileEntity
{
UploadId = webSocketPackage.UploadId,
Crc32 = remoteFile.UploadList[0].Crc32,
Size = remoteFile.UploadList[0].Size,
IsFolder = remoteFile.UploadList[0].IsFolder,
Name = remoteFile.UploadList[0].Name,
Token = AccountObject.Token,
Status = FileStatus.RemotelyCreated
};
if (webSocketPackage.FolderId.HasValue && webSocketPackage.FolderId != 0)
{
var remoteParent = await FileRepository.FindAsync(AccountObject.Token, webSocketPackage.FolderId);
if (remoteParent == null)
{
//there is no parent folder in the DB, let's wait for another iteration
PackagesBuffer.Add(webSocketPackage);
return;
}
file.ParentId = remoteParent.Id;
}
var oldFile = await FileRepository.FindAsync(file);
if (oldFile != null)
{
if (file.UploadId == oldFile.UploadId)
{
//the same file scanned twice, should never happened, but who knows
oldFile.Status = FileStatus.Conflict;
return;
}
file.Name = await GetIncrementName(file);
file.Status = FileStatus.RenameRequired;
await FileRepository.AddAsync(file);
}
else
{
//detect moved files
var deleted = await FileRepository.FindAsync(x =>
x.Size == file.Size &&
x.Status == FileStatus.RemotelyDeleted &&
x.Name == file.Name &&
x.Crc32 == file.Crc32 &&
x.UploadId != file.UploadId);
if (deleted != null)
{
deleted.Status = FileStatus.RemotelyMovedFrom;
deleted.MovedId = file.Id;
file.Status = FileStatus.RemotelyMovedTo;
file.MovedId = file.Id;
}
else
{
file.Status = FileStatus.RemotelyCreated;
}
await FileRepository.AddAsync(file);
}
}