public async Task<PhotosResponse> GetPhotosAsync(string methodName, User user, Preferences preferences, int page,
IProgress<ProgressUpdate> progress)
{
var progressUpdate = new ProgressUpdate
{
OperationText = "Getting list of photos...",
ShowPercent = false
};
progress.Report(progressUpdate);
var extraParams = new Dictionary<string, string>
{
{ParameterNames.UserId, user.UserNsId},
{ParameterNames.SafeSearch, SafeSearch.GetValue(preferences.SafetyLevel)},
{
ParameterNames.PerPage,
preferences.PhotosPerPage.ToString(CultureInfo.InvariantCulture)
},
{ParameterNames.Page, page.ToString(CultureInfo.InvariantCulture)}
};
var photosResponse = (Dictionary<string, object>)
await _oAuthManager.MakeAuthenticatedRequestAsync(methodName, extraParams);
return photosResponse.GetPhotosResponseFromDictionary();
}
private async Task DownloadPhotos(IEnumerable<Photo> photos, CancellationToken cancellationToken,
IProgress<ProgressUpdate> progress, Preferences preferences)
{
try
{
var progressUpdate = new ProgressUpdate
{
Cancellable = true,
OperationText = "Downloading photos...",
PercentDone = 0,
ShowPercent = true
};
progress.Report(progressUpdate);
int doneCount = 0;
IList<Photo> photosList = photos as IList<Photo> ?? photos.ToList();
int totalCount = photosList.Count();
DirectoryInfo imageDirectory = CreateDownloadFolder(preferences.DownloadLocation);
foreach (Photo photo in photosList)
{
string photoUrl = photo.OriginalUrl;
string photoExtension = "jpg";
switch (preferences.DownloadSize)
{
case PhotoDownloadSize.Medium:
photoUrl = photo.Medium800Url;
break;
case PhotoDownloadSize.Large:
photoUrl = photo.Large1024Url;
break;
case PhotoDownloadSize.Original:
photoUrl = photo.OriginalUrl;
photoExtension = photo.DownloadFormat;
break;
}
Photo photoWithPreferredTags = photo;
if (preferences.NeedOriginalTags)
{
photoWithPreferredTags = await _originalTagsLogic.GetOriginalTagsTask(photo);
}
string photoName = preferences.TitleAsFilename ? GetSafeFilename(photo.Title) : photo.Id;
string targetFileName = Path.Combine(imageDirectory.FullName,
string.Format("{0}.{1}", photoName, photoExtension));
WriteMetaDataFile(photoWithPreferredTags, targetFileName, preferences);
WebRequest request = WebRequest.Create(photoUrl);
var buffer = new byte[4096];
await DownloadAndSavePhoto(targetFileName, request, buffer);
doneCount++;
progressUpdate.PercentDone = doneCount*100/totalCount;
progressUpdate.DownloadedPath = imageDirectory.FullName;
progress.Report(progressUpdate);
if (progressUpdate.PercentDone != 100) cancellationToken.ThrowIfCancellationRequested();
}
}
catch (OperationCanceledException)
{
}
}
