prioritize turns URLs

src/anam/types.py

@@ -231,6 +231,24 @@ class AgentAudioInputPayload:
     sequence_number: int
 
 
+def _reorder_ice_server_urls(ice_servers: list[dict[str, Any]]) -> list[dict[str, Any]]:
+    """Reorder URLs to prioritize TURNS (TURN over TLS) as aiortc only uses the first TURN URI."""
+
+    def _turns_first(u):
+        return 0 if str(u).lower().startswith("turns:") else 1
+
+    return [
+        {
+            **s,
+            "urls": sorted(
+                [s["urls"]] if isinstance(s.get("urls"), str) else s.get("urls", []),
+                key=_turns_first,
+            ),
+        }
+        for s in ice_servers
+    ]
+
+
 @dataclass
 class SessionInfo:
     """Information about an active streaming session.
@@ -257,5 +275,5 @@ def from_api_response(cls, data: dict[str, Any]) -> "SessionInfo":
             signalling_endpoint=data["signallingEndpoint"],
             heartbeat_interval_seconds=client_config.get("heartbeatIntervalSeconds", 5),
             max_reconnection_attempts=client_config.get("maxWsReconnectionAttempts", 5),
-            ice_servers=client_config.get("iceServers", []),
+            ice_servers=_reorder_ice_server_urls(client_config.get("iceServers") or []),
         )