public async Task Dequeue_PersistsImageQueueAfterDequeuing()
{
Option <ISavedImage> expectedDequeuedImage = A.Dummy <ISavedImage>().Some();
A.CallTo(() => _innerQueue.Dequeue()).Returns(expectedDequeuedImage);
Option <ISavedImage> dequeuedImage = await _sut.Dequeue();
dequeuedImage.Should().Be(expectedDequeuedImage);
A.CallTo(() => _innerQueue.Dequeue()).MustHaveHappened()
.Then(A.CallTo(() => _persistence.SaveSettings(ImageQueuePersistenceKey, EnqueuedImageIdsJson)).MustHaveHappened());
}
public async Task <Option <ISavedImage> > Dequeue()
{
Option <ISavedImage> dequeuedImage = await _queue.Dequeue();
await dequeuedImage.Select(_ => PersistLatestQueueState()).ValueOr(Task.FromResult(0));
return(dequeuedImage);
}
public void UpdateWallpaperFrom(IImageQueue imageQueue)
{
_wallpaperUpdateSubscriptions.Add(Observable
.Interval(TimeSpan.FromSeconds(10)) // TODO: Make this a configurable setting
.SelectMany(i => Observable.FromAsync(_ => imageQueue.Dequeue()))
.SelectMany(o => Observable.FromAsync(_ => o
.Map(async i =>
{
_logger.Information("Setting wallpaper to {ImageId} from source {SourceId}", i.Id.ImageId.Value, i.Id.SourceId.Value);
await _wallpaperEnvironment.SetWallpaper(i.Id.SourceId.Value, i.Id.ImageId.Value, _logger);
_logger.Information("Wallpaper set to {ImageId} from source {SourceId}", i.Id.ImageId.Value, i.Id.SourceId.Value);
})
.ValueOr(TaskConstants.Completed)))
.Subscribe());
}