Update agent.py

agent.py

@@ -190,33 +190,33 @@ def build_graph(provider: str = "groq"):
         """Assistant node"""
         return {"messages": [llm_with_tools.invoke(state["messages"])]}
     
+    # def retriever(state: MessagesState):
+    #     """Retriever node"""
+    #     similar_question = vector_store.similarity_search(state["messages"][0].content)
+    #     example_msg = HumanMessage(
+    #         content=f"Here I provide a similar question and answer for reference: \n\n{similar_question[0].page_content}",
+    #     )
+    #     return {"messages": [sys_msg] + state["messages"] + [example_msg]}
+
     def retriever(state: MessagesState):
         """Retriever node"""
-        similar_question = vector_store.similarity_search(state["messages"][0].content)
-        example_msg = HumanMessage(
-            content=f"Here I provide a similar question and answer for reference: \n\n{similar_question[0].page_content}",
-        )
-        return {"messages": [sys_msg] + state["messages"] + [example_msg]}
-
-    # # def retriever(state: MessagesState):
-    # #     """Retriever node"""
-    # #     messages = state.get("messages", [])
-    # #     if not messages:
-    # #         print("⚠️ No messages received in retriever node.")
-    # #         return {"messages": []}
+        messages = state.get("messages", [])
+        if not messages:
+            print("⚠️ No messages received in retriever node.")
+            return {"messages": []}
         
-    # #     query = messages[0].content
-    # #     similar_question = vector_store.similarity_search(query)
+        query = messages[0].content
+        similar_question = vector_store.similarity_search(query)
         
-    # #     if not similar_question:
-    # #         print("⚠️ No similar questions found.")
-    # #         return {"messages": messages}
+        if not similar_question:
+            print("⚠️ No similar questions found.")
+            return {"messages": messages}
         
-    # #     example_msg = HumanMessage(
-    # #         content=f"Here I provide a similar question and answer for reference:\n\n{similar_question[0].page_content}",
-    # #     )
+        example_msg = HumanMessage(
+            content=f"Here I provide a similar question and answer for reference:\n\n{similar_question[0].page_content}",
+        )
         
-    # #     return {"messages": [sys_msg] + messages + [example_msg]}
+        return {"messages": [sys_msg] + messages + [example_msg]}
 
     #     def retriever(state: MessagesState):
     #         """Retriever node"""