Openai debate2 (#1287)

* wip: openai debate example.

* wip: opeanai datachannel controls.

* Got the conversation trrigger from a data channel message working.

* Alice and Bob now having some gr8 chats.

* Async improvements.

Author: sipsorcery

examples/WebRTCExamples/WebRTCOpenAIAliceAndBob/Program.cs

@@ -90,7 +90,7 @@ class Program
 
         private static FormAudioScope? _audioScopeForm;
 
-        static void Main(string[] args)
+        static async Task Main(string[] args)
         {
             Console.WriteLine("WebRTC OpenAI Alice & Bob Demo");
 
@@ -150,7 +150,7 @@ static void Main(string[] args)
             var aliceCallTask = InitiatePeerConnection(openAIKey, aliceInitialContext);
             var bobCallTask = InitiatePeerConnection(openAIKey, bobInitialContext);
 
-            Task.WaitAll(aliceCallTask, bobCallTask);
+            _ = await Task.WhenAll(aliceCallTask, bobCallTask);
 
             var combinedCtx = from aliceCtx in aliceCallTask.Result
                            from bobCtx in bobCallTask.Result
@@ -170,8 +170,10 @@ from bobCtx in bobCallTask.Result
 
                 // Wait until both calls have their data channels connected which can only happen if the underlying
                 // peer connections are also connected.
-                aliceConncectedCtx.PcConnectedSemaphore.Wait();
-                bobConnectedCtx.PcConnectedSemaphore.Wait();
+                var waitForAlice = aliceConncectedCtx.PcConnectedSemaphore.WaitAsync();
+                var waitForBob = bobConnectedCtx.PcConnectedSemaphore.WaitAsync();
+
+                await Task.WhenAll(waitForAlice, waitForBob);
 
                 logger.LogInformation($"Both calls successfully connected.");