public async Task EvaluateImagesOnline(IProgress <int> progress, CancellationToken cancellationToken)
{
// Sign into firebase.
if (await FirebaseClient.Client.SignInPromptUserIfNecessary())
{
// Find all media datas without annotation data.
var mediaDatasWithoutAnnotationData = MediaDatas.Where(data => data.Meta.AnnotationData == null);
var evaluated = 0;
using (new DisposableLogger(GalleryLog.EvaluateOnlineBegin, (sw) => GalleryLog.EvaluateOnlineEnd(sw, evaluated)))
{
IsEvaluating = true;
await mediaDatasWithoutAnnotationData.ForEachAsyncConcurrent(async media =>
{
try
{
// Evaluate media thumbnail online.
await media.EvaluateOnlineAsync(FirebaseClient.accessToken);
}
catch (Exception e)
{
// Log Exception.
LifecycleLog.Exception(e);
}
finally
{
// Update and then report progress.
evaluated++;
progress.Report(evaluated);
}
}, cancellationToken, 5);
IsEvaluating = false;
}
// Save online results to database.
await DatabaseUtils.SaveAllMetadatasAsync(MediaDatas);
}
}