Fix realtime initial greeting handling (#481)

api/tests/test_realtime_feedback_observer.py

@@ -7,7 +7,23 @@ from pipecat.processors.frame_processor import FrameDirection
 from pipecat.transports.base_output import BaseOutputTransport
 from pipecat.transports.base_transport import TransportParams
 
-from api.services.pipecat.realtime_feedback_observer import RealtimeFeedbackObserver
+from api.services.pipecat.in_memory_buffers import InMemoryLogsBuffer
+from api.services.pipecat.realtime_feedback_observer import (
+    RealtimeFeedbackObserver,
+    register_turn_log_handlers,
+)
+
+
+class _FakeAggregator:
+    def __init__(self):
+        self.handlers = {}
+
+    def event_handler(self, event_name):
+        def decorator(handler):
+            self.handlers[event_name] = handler
+            return handler
+
+        return decorator
 
 
 def _frame_pushed(frame, direction, *, source=None):
@@ -98,3 +114,33 @@ async def test_observer_waits_for_tts_text_from_output_transport():
             "payload": {"text": "Hello"},
         }
     ]
+
+
+@pytest.mark.asyncio
+async def test_turn_log_handlers_persist_user_message_added_events():
+    logs_buffer = InMemoryLogsBuffer(workflow_run_id=123)
+    user_aggregator = _FakeAggregator()
+    assistant_aggregator = _FakeAggregator()
+
+    register_turn_log_handlers(logs_buffer, user_aggregator, assistant_aggregator)
+
+    assert "on_user_turn_message_added" in user_aggregator.handlers
+    assert "on_user_turn_stopped" not in user_aggregator.handlers
+
+    await user_aggregator.handlers["on_user_turn_message_added"](
+        user_aggregator,
+        SimpleNamespace(
+            content="Hi there",
+            timestamp="2026-01-01T00:00:00+00:00",
+        ),
+    )
+
+    events = logs_buffer.get_events()
+    assert len(events) == 1
+    assert events[0]["type"] == "rtf-user-transcription"
+    assert events[0]["payload"] == {
+        "text": "Hi there",
+        "final": True,
+        "timestamp": "2026-01-01T00:00:00+00:00",
+    }
+    assert events[0]["turn"] == 1