Update app.py

app.py

@@ -100,8 +100,10 @@ async def chat(request: ChatRequest):
                      "parts": [{"text": f"Here is a summary of this conversation so far: {summary_response.text}"}]})
 
             # ------------ rephrase user question ------------
-            rephrase_prompt = f"""Rewrite the given user question to improve clarity, specificity, and retrieval accuracy while maintaining its original intent.
+            rephrase_prompt = f"""Given the user question and the chat history, rewrite the user question to improve clarity, specificity, and retrieval accuracy while 
+            maintaining its original intent within the given chat.
 
+            - Read the chat history 
             - Expand only where necessary to remove vagueness.  
             - Keep the question natural and concise.  
             - Avoid adding excessive detail or unrelated context.  
@@ -117,8 +119,12 @@ async def chat(request: ChatRequest):
             
             User: "What does it mean if I see does while buck hunting?"  
             Refined: "If I see does while hunting for a buck, what does that indicate about deer movement and buck activity?"  
+
+            Chat history:
+            {request.chat_history}
             
-            Now, refine the following user question:  
+            Now, given the chat history, refine the following user question to improve clarity, specificity, and retrieval accuracy while maintaining its original 
+            intent within the given chat:  
             {request.message}
             """