public Task AddLivestream(ChannelIdentifier channelIdentifier, IViewAware viewAware)
{
if (channelIdentifier == null)
{
throw new ArgumentNullException(nameof(channelIdentifier));
}
Livestreams.Add(new LivestreamModel(channelIdentifier.ChannelId, channelIdentifier));
return(Task.CompletedTask);
}
/// <summary> Design time only constructor </summary>
public MonitorStreamsModel()
{
if (!Execute.InDesignMode)
{
throw new InvalidOperationException("Constructor only accessible from design time");
}
var rnd = new Random();
for (int i = 0; i < 100; i++)
{
Livestreams.Add(new LivestreamModel("Livestream " + i, null)
{
Live = i < 14,
DisplayName = $"Channel Name {i + 1}",
Description = $"Channel Description {i + 1}",
Game = i < 50 ? "Game A" : "Game B",
StartTime = i < 14 ? DateTimeOffset.Now.AddSeconds(-(rnd.Next(10000))) : DateTimeOffset.MinValue,
Viewers = i < 14 ? rnd.Next(50000) : 0
});
}
}
private void PopulateLivestreams(List <LivestreamModel> livestreamModels)
{
foreach (var livestream in livestreamModels)
{
var livestreamModel = Livestreams.FirstOrDefault(x => Equals(livestream, x));
livestreamModel?.PopulateSelf(livestream);
}
var newStreams = livestreamModels.Except(Livestreams).ToList();
var removedStreams = Livestreams.Except(livestreamModels).ToList();
// add/remove streams one at a time so we trigger regular add/remove collection change event
// using addrange/removerange will instead trigger a reset event and will not state what new items were added/removed
foreach (var livestreamModel in newStreams)
{
Livestreams.Add(livestreamModel);
}
foreach (var livestreamModel in removedStreams)
{
Livestreams.Remove(livestreamModel);
}
}
public async Task ImportFollows(string username, IApiClient apiClient)
{
if (username == null)
{
throw new ArgumentNullException(nameof(username));
}
if (apiClient == null)
{
throw new ArgumentNullException(nameof(apiClient));
}
if (!apiClient.HasUserFollowQuerySupport)
{
throw new InvalidOperationException($"{apiClient.ApiName} does not have support for getting followed streams.");
}
var followedChannelsQueryResults = await apiClient.GetUserFollows(username);
followedChannelsQueryResults.EnsureAllQuerySuccess();
// Ignore duplicate channels
var newChannels = followedChannelsQueryResults.Where(x => !channelIdentifiers.Contains(x.ChannelIdentifier)).ToList();
if (newChannels.Count == 0)
{
return;
}
foreach (var newChannel in newChannels)
{
newChannel.ChannelIdentifier.ImportedBy = username;
Livestreams.Add(newChannel.LivestreamModel);
newChannel.ChannelIdentifier.ApiClient.AddChannelWithoutQuerying(newChannel.ChannelIdentifier);
}
AddChannels(newChannels.Select(x => x.ChannelIdentifier).ToArray());
await RefreshLivestreams();
}
