public async Task SetStoriesAsync(IEnumerable <int> newStories)
{
if (newStories.SequenceEqual(_topStories))
{
return;
}
var nonStoredItems = await GetNonStoredItemsAsync(newStories);
var added = AddItemsToDictionary(nonStoredItems);
var values = newStories.Select(id => {
_items.TryGetValue(id, out Item outItem);
return(outItem);
});
await _messageSender.PublishNewsAsync(values.Where(item => item != null))
.ConfigureAwait(false);
RemoveCacheItemsNotInTheTopStories(newStories);
_topStories = newStories.ToList();
}