WingMan – Rev 36
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using System;
using System.IO;
using System.Threading;
using System.Threading.Tasks;
using ProtoBuf;
using WingMan.Communication;
namespace WingMan.Lobby
{
public class LobbyMessageSynchronizer : IDisposable
{
public delegate void LobbyMessageReceived(object sender, LobbyMessageReceivedEventArgs e);
public LobbyMessageSynchronizer(MqttCommunication mqttCommunication, TaskScheduler taskScheduler,
CancellationToken cancellationToken)
{
MqttCommunication = mqttCommunication;
CancellationToken = cancellationToken;
TaskScheduler = taskScheduler;
mqttCommunication.OnMessageReceived += MqttCommunicationOnOnMessageReceived;
}
private MqttCommunication MqttCommunication { get; }
private CancellationToken CancellationToken { get; }
private TaskScheduler TaskScheduler { get; }
public void Dispose()
{
MqttCommunication.OnMessageReceived -= MqttCommunicationOnOnMessageReceived;
}
public event LobbyMessageReceived OnLobbyMessageReceived;
private async void MqttCommunicationOnOnMessageReceived(object sender,
MqttCommunicationMessageReceivedEventArgs e)
{
if (e.Topic != "lobby")
return;
using (var memoryStream = new MemoryStream())
{
await e.PayloadStream.CopyToAsync(memoryStream);
memoryStream.Position = 0L;
var lobbyMessage = Serializer.Deserialize<LobbyMessage>(memoryStream);
await Task.Delay(0)
.ContinueWith(
_ => OnLobbyMessageReceived?.Invoke(sender,
new LobbyMessageReceivedEventArgs(lobbyMessage.Nick, lobbyMessage.Message)),
CancellationToken, TaskContinuationOptions.None, TaskScheduler);
}
}
public async Task Broadcast(string message)
{
using (var memoryStream = new MemoryStream())
{
Serializer.Serialize(memoryStream, new LobbyMessage(MqttCommunication.Nick, message));
memoryStream.Position = 0L;
await MqttCommunication.Broadcast("lobby", memoryStream.ToArray());
}
}
}
}