private async Task <DownloadNewImagesResult> DownloadNewImages(String id)
{
logger.Info("downloadNewImages");
var wallpaperResponse = await _irpyteDownloader.Wallpaper(id);
if (wallpaperResponse.imageResults.Count == 0)
{
logger.Info("Search resulted in 0 images");
}
var downloadedFilenamesMaybe = await Task.WhenAll(wallpaperResponse.imageResults.Select(entry =>
{
try
{
var fileId = Guid.NewGuid();
var fileExtension = Path.GetExtension(entry.url);
var filePath = Path.Combine(DB.Instance.ImagesPath, fileId.ToString() + fileExtension);
var fileStream = new FileStream(filePath, FileMode.CreateNew);
var fileName = Path.GetFileName(filePath);
logger.Info($"Getting {entry.url} into {filePath}");
var responseStream = _httpClient.GetStreamAsync(entry.url);
return(responseStream
.ContinueWith(r => r.Result.CopyToAsync(fileStream),
TaskContinuationOptions.OnlyOnRanToCompletion).Unwrap()
.ContinueWith(r => fileName, TaskContinuationOptions.OnlyOnRanToCompletion)
.ContinueWith(t =>
{
logger.Info($"Disposing fileStream {filePath} and responseStream");
fileStream.Dispose();
responseStream.Dispose();
return t;
}).Unwrap());
}
catch (Exception e)
{
logger.Error(e, "Error while downloading a file");
return(null);
}
}));
var downloadedFilenames = downloadedFilenamesMaybe.Where(x => x != null);
var downloadedImages = downloadedFilenames.ToList();
logger.Info($"Downloaded {downloadedImages.Count}");
var appConfig = DB.Instance.GetConfig();
appConfig.imageFileNames.AddRange(downloadedImages);
DB.Instance.UpdateConfig(appConfig);
if (downloadedImages.Count == 0)
{
return(new DownloadNewImagesResult(true));
}
else
{
return(new DownloadNewImagesResult());
}
}
