Update app.py

app.py

@@ -2844,13 +2844,13 @@ with gr.Blocks(
         
         # ==================== TAB 6: ASK AI ====================
         with gr.Tab("💬 Ask AI"):
-            gr.Markdown("## 🤖 Chat with RewardPilot AI (Powered by Gemini)")
-            
+            gr.Markdown("## 🤖 Chat with RewardPilot AI (Powered by OpenAI GPT-4)")
+
             # Add status indicator
-            if config.USE_GEMINI and gemini.enabled:
-                gr.Markdown("✅ **Status:** Gemini 2.0 Flash Active | **Mode:** Conversational Assistant")
+            if os.getenv("OPENAI_API_KEY"):
+                gr.Markdown("✅ **Status:** GPT-4 Turbo Active | **Mode:** Function Calling Enabled")
             else:
-                gr.Markdown("⚠️ **Status:** Fallback Mode (Gemini unavailable)")
+                gr.Markdown("⚠️ **Status:** OpenAI API key not configured")
             
             gr.Markdown("---")
             gr.Markdown("*Ask questions about credit cards, rewards, and your spending patterns*")
@@ -2969,23 +2969,24 @@ with gr.Blocks(
                 messages.append({"role": "user", "content": message})
                 
                 try:
-                    # ✅ Call GPT-4 with function calling
+                    # ✅ Call GPT-4 with function calling (NEW SYNTAX)
                     response = openai_client.chat.completions.create(
                         model="gpt-4-turbo-preview",
                         messages=messages,
-                        functions=functions,
-                        function_call="auto",
+                        tools=[{"type": "function", "function": func} for func in functions],
+                        tool_choice="auto",  # Changed from function_call
                         temperature=0.7,
                         max_tokens=500
                     )
                     
                     response_message = response.choices[0].message
                     
-                    # Check if GPT-4 wants to call a function
-                    if response_message.function_call:
-                        function_name = response_message.function_call.name
-                        function_args = json.loads(response_message.function_call.arguments)
-                        
+                    # Check if GPT-4 wants to call a function (NEW SYNTAX)
+                    if response_message.tool_calls:
+                        tool_call = response_message.tool_calls[0]
+                        function_name = tool_call.function.name
+                        function_args = json.loads(tool_call.function.arguments)
+    
                         # Execute the function
                         if function_name == "get_card_recommendation":
                             # Call your existing recommendation system
@@ -3014,11 +3015,11 @@ with gr.Blocks(
                         else:
                             function_response = "Function not implemented yet."
                         
-                        # Send function response back to GPT-4 for natural language formatting
+                        
                         messages.append(response_message)
                         messages.append({
-                            "role": "function",
-                            "name": function_name,
+                            "role": "tool",  # Changed from "function"
+                            "tool_call_id": tool_call.id,  # Required field
                             "content": function_response
                         })