Add debug logs for audio call

Author: tyouwei

peerprep-fe/src/app/collaboration/components/AudioSharing.tsx

@@ -21,9 +21,13 @@ const AudioSharing = () => {
     process.env.NEXT_PUBLIC_AUDIO_SERVER_URL || 'http://localhost:5555';
 
   // Add TURN server credentials from environment variables
-  const TURN_SERVER = process.env.NEXT_PUBLIC_TURN_SERVER || 'turn:localhost';
-  const TURN_USERNAME = process.env.NEXT_PUBLIC_TURN_USERNAME || 'none';
-  const TURN_CREDENTIAL = process.env.NEXT_PUBLIC_TURN_PASSWORD || 'none';
+  const TURN_SERVER = process.env.NEXT_PUBLIC_TURN_SERVER;
+  const TURN_USERNAME = process.env.NEXT_PUBLIC_TURN_USERNAME;
+  const TURN_CREDENTIAL = process.env.NEXT_PUBLIC_TURN_PASSWORD;
+
+  if (!TURN_SERVER || !TURN_USERNAME || !TURN_CREDENTIAL) {
+    console.error('Missing TURN environment variables');
+  }
 
   const cleanupAudio = () => {
     if (audioStreamRef.current) {
@@ -52,11 +56,11 @@ const AudioSharing = () => {
           { urls: 'stun:stun.l.google.com:19302' },
           { urls: 'stun:global.stun.twilio.com:3478' },
           // Add TURN server configuration
-          {
-            urls: TURN_SERVER,
-            username: TURN_USERNAME,
-            credential: TURN_CREDENTIAL,
-          },
+          // {
+          //   urls: TURN_SERVER,
+          //   username: TURN_USERNAME,
+          //   credential: TURN_CREDENTIAL,
+          // },
         ],
       },
     });