Update: Needs Testing - Not Tested

RelayServer/Endpoints/RtcEndpoints.cs

@@ -16,6 +16,14 @@ public static class RtcEndpoints
         app.MapPost("/api/rtc/offer", async (RtcOffer request, RtcCallService rtcCallService) =>
         {
             await rtcCallService.WriteOfferAsync(request.ChannelId, request.Username, request.SessionDescription);
+
+            RtcNotificationService.Broadcast(new RtcNotificationMessage
+            {
+                Type = "rtc_offer_updated",
+                ChannelId = request.ChannelId,
+                Username = request.Username
+            });
+
             return Results.Ok();
         });
 
@@ -31,14 +39,6 @@ public static class RtcEndpoints
             return Results.Ok(await rtcCallService.HasActiveCallAsync(channelId));
         });
 
-        // TODO: You can uncomment me if you'd like to have both. Otherwise delete me - you never know but I made it "call" instead of "active"
-        // Return the active call object for the specified channel.
-        //app.MapGet("/api/rtc/call/{channelId}", async (string channelId, RtcCallService rtcCallService) =>
-        //{
-        //    var call = await rtcCallService.GetActiveCallAsync(channelId);
-        //    return call is null ? Results.NotFound() : Results.Ok(call);
-        //});
-
         // Return the latest stored SDP offer for the specified channel.
         app.MapGet("/api/rtc/offers/{channelId}", async (string channelId, RtcCallService rtcCallService) =>
         {
@@ -47,9 +47,22 @@ public static class RtcEndpoints
         });
 
         // Store a new SDP answer for the specified channel call.
-        app.MapPost("/api/rtc/answer", async (RtcOffer request, RtcCallService rtcCallService) =>
+        app.MapPost("/api/rtc/answer", async (RtcAnswer request, RtcCallService rtcCallService) =>
         {
-            await rtcCallService.WriteAnswerAsync(request.ChannelId, request.SessionDescription);
+            await rtcCallService.WriteAnswerAsync(
+                request.ChannelId,
+                new RtcSessionDescription
+                {
+                    Type = "answer",
+                    Sdp = request.Sdp
+                });
+
+            RtcNotificationService.Broadcast(new RtcNotificationMessage
+            {
+                Type = "rtc_answer_updated",
+                ChannelId = request.ChannelId
+            });
+
             return Results.Ok();
         });
 
@@ -78,6 +91,14 @@ public static class RtcEndpoints
                 request.Direction
             );
 
+            RtcNotificationService.Broadcast(new RtcNotificationMessage
+            {
+                Type = "rtc_candidate_added",
+                ChannelId = request.ChannelId,
+                Username = request.Username,
+                Direction = request.Direction
+            });
+
             return Results.Ok();
         });
 
@@ -102,6 +123,14 @@ public static class RtcEndpoints
         app.MapPost("/api/rtc/leave", async (RtcLeaveRequest request, RtcCallService rtcCallService) =>
         {
             await rtcCallService.LeaveCallAsync(request.ChannelId, request.Username);
+
+            RtcNotificationService.Broadcast(new RtcNotificationMessage
+            {
+                Type = "rtc_call_left",
+                ChannelId = request.ChannelId,
+                Username = request.Username
+            });
+
             return Results.Ok();
         });
     }