private void PopulateLivestreams(List <LivestreamModel> livestreamModels)
{
foreach (var livestream in livestreamModels)
{
var livestreamModel = Livestreams.FirstOrDefault(x => Equals(livestream, x));
livestreamModel?.PopulateSelf(livestream);
}
var newStreams = livestreamModels.Except(Livestreams).ToList();
var removedStreams = Livestreams.Except(livestreamModels).ToList();
Livestreams.AddRange(newStreams);
Livestreams.RemoveRange(removedStreams);
}
public async Task AddLivestream(ChannelIdentifier channelIdentifier, IViewAware viewAware)
{
if (channelIdentifier == null)
{
throw new ArgumentNullException(nameof(channelIdentifier));
}
if (channelIdentifiers.Contains(channelIdentifier))
{
return; // ignore duplicate requests
}
var livestreamQueryResults = await channelIdentifier.ApiClient.AddChannel(channelIdentifier);
livestreamQueryResults.EnsureAllQuerySuccess();
AddChannels(channelIdentifier);
Livestreams.AddRange(livestreamQueryResults.Select(x => x.LivestreamModel));
}