Update app.py

app.py

@@ -15,37 +15,34 @@ Use clear sections, shots, and visual descriptions when possible.
 # -------------------------
 # Chat Function (FIXED)
 # -------------------------
-def respond(message,history ,  model, temperature, max_tokens):
+def respond(message, history, model, temperature, max_tokens):
     if not message or message.strip() == "":
         return history
 
-    # Start conversation with system prompt
     messages = [{"role": "system", "content": SYSTEM_PROMPT}]
 
-    Add previous chat history (already dict-based)
-    for msg in history:
-        messages.append(msg)
+    for user, assistant in history:
+        messages.append({"role": "user", "content": user})
+        messages.append({"role": "assistant", "content": assistant})
 
-    # Add new user message
     messages.append({"role": "user", "content": message})
 
-    
-    response = client.chat.completions.create(
-        model=model,
-        messages=messages,
-        temperature=temperature,
-        max_completion_tokens=max_tokens,
-    )
-
-    assistant_reply = response.choices[0].message.content
+    try:
+        response = client.chat.completions.create(
+            model=model,
+            messages=messages,
+            temperature=temperature,
+            max_completion_tokens=max_tokens,
+        )
 
-    #Update history in NEW format
-    history.append({"role": "user", "content": message})
-    history.append({"role": "assistant", "content": assistant_reply})
+        assistant_reply = response.choices[0].message.content
 
-    return assistant_reply
+        history.append((message, assistant_reply))
+        return history
 
- 
+    except Exception as e:
+        history.append((message, f"❌ Error: {str(e)}"))
+        return history
 
 # -------------------------
 # Custom CSS
@@ -121,7 +118,7 @@ with gr.Blocks(css=custom_css) as demo:
     # -------------------------
     send.click(
         respond,
-        inputs=[msg, chatbot ,model, temperature, max_tokens],
+        inputs=[msg, chatbot, model, temperature, max_tokens],
         outputs=chatbot,
     )