public void SaveState(DropboxDownloadState downloadState)
{
if (!_map.TryGetValue(downloadState.AccountId, out _))
{
downloadState.Started = DateTimeOffset.UtcNow;
_map.Add(downloadState.AccountId, downloadState);
}
var values = _map.Values.ToList();
var fileContents = JsonConvert.SerializeObject(values);
File.WriteAllText(FileName, fileContents);
_logger.LogInformation("Directory: " + Directory.GetCurrentDirectory());
_logger.LogInformation("Saved");
}
public async IAsyncEnumerable <DropboxFileInfo> DownloadAsync(
IUserIdentifier userIdentifier,
string apiToken,
StoppingAction stoppingAction,
[EnumeratorCancellation] CancellationToken cancellationToken)
{
CreateClient(apiToken);
var account = await WrapApiCallAsync(_dropboxClient.Users.GetCurrentAccountAsync);
_state = _stateService.GetState(account.AccountId);
if (_state != null)
{
_lastProcessedFileIndex = _state.LastProcessedFileIndex;
}
else
{
_state = new DropboxDownloadState {
Started = DateTimeOffset.Now, AccountId = account.AccountId
}
};
bool firstIteration = true;
var filesMetadata = new List <Metadata>();
var listFolderResult = await WrapApiCallAsync(() => _dropboxClient.Files.ListFolderAsync(CameraUploads, limit: Limit));
while (listFolderResult.HasMore || firstIteration)
{
if (!firstIteration)
{
listFolderResult = await WrapApiCallAsync(() =>
_dropboxClient.Files.ListFolderContinueAsync(listFolderResult.Cursor));
}
filesMetadata.AddRange(listFolderResult.Entries.Where(a => a is FileMetadata));
firstIteration = false;
}
_state.TotalFiles = filesMetadata.Count;
var index = _lastProcessedFileIndex > -1 ? _lastProcessedFileIndex : 0;
for (int i = index; i < filesMetadata.Count; i++)
{
if (cancellationToken.IsCancellationRequested || stoppingAction.IsStopRequested)
{
_logger.LogInformation("Cancellation requested.");
yield break;
}
var fileMetadata = filesMetadata[i];
var dropboxFile = await DownloadFileAsync(fileMetadata, account);
if (dropboxFile == null)
{
yield break;
}
_state.LastProcessedFileIndex++;
_state.LastProcessedFileId = dropboxFile.FileId;
_progressReporter.Report(userIdentifier, _state.LastProcessedFileIndex, _state.TotalFiles);
yield return(dropboxFile);
}
}