fix text input no context update

engine/pipeline.py

@@ -14,7 +14,6 @@ from pipecat.pipeline.runner import PipelineRunner
 from pipecat.pipeline.task import PipelineParams, PipelineTask
 from pipecat.processors.aggregators.llm_context import LLMContext
 from pipecat.processors.aggregators.llm_response_universal import (
-    AssistantTurnStoppedMessage,
     LLMContextAggregatorPair,
     LLMUserAggregatorParams,
     UserTurnStoppedMessage,
@@ -34,7 +33,7 @@ from .config import EngineConfig
 from .product_protocol import ProductWebsocketSerializer
 from .services import create_llm_service, create_stt_service, create_tts_service
 from .text_input import ProductTextInputProcessor
-from .text_stream import ProductTextStreamProcessor
+from .text_stream import ProductAssistantTurnStoppedMessage, ProductTextStreamProcessor
 from .transcript_stream import ProductTranscriptStreamProcessor
 from .turn_start import InterruptionGateUserTurnStartStrategy
 
@@ -118,13 +117,14 @@ async def run_pipeline_with_serializer(
             ),
         ],
     )
-    user_aggregator, assistant_aggregator = LLMContextAggregatorPair(
+    user_aggregator, _ = LLMContextAggregatorPair(
         context,
         user_params=LLMUserAggregatorParams(
             vad_analyzer=SileroVADAnalyzer(params=vad_params),
             user_turn_strategies=user_turn_strategies,
         ),
     )
+    text_stream = ProductTextStreamProcessor(context)
 
     pipeline = Pipeline(
         [
@@ -134,10 +134,9 @@ async def run_pipeline_with_serializer(
             ProductTranscriptStreamProcessor(),
             user_aggregator,
             llm,
-            ProductTextStreamProcessor(),
+            text_stream,
             tts,
             transport.output(),
-            assistant_aggregator,
         ]
     )
 
@@ -188,11 +187,10 @@ async def run_pipeline_with_serializer(
             )
         )
 
-    # NOTE: assistant turn started/final events are emitted by
-    # ProductTextStreamProcessor, upstream of TTS, so text streams to the
-    # client ahead of audio. This logger is kept for server-side visibility.
-    @assistant_aggregator.event_handler("on_assistant_turn_stopped")
-    async def on_assistant_turn_stopped(_aggregator, message: AssistantTurnStoppedMessage):
+    @text_stream.event_handler("on_assistant_turn_stopped")
+    async def on_assistant_turn_stopped(
+        _aggregator, message: ProductAssistantTurnStoppedMessage
+    ):
         logger.info(f"Assistant: {message.content}")
 
     runner = PipelineRunner(handle_sigint=False)