Update app.py

app.py

@@ -3,15 +3,35 @@
 import gradio as gr
 from generate import generate_response
 
-def chat_fn(user_input):
-    return generate_response(user_input)
-
-iface = gr.Interface(
-    fn=chat_fn,
-    inputs=gr.Textbox(lines=2, placeholder="Ask Evo anything..."),
-    outputs="text",
-    title="🧠 EvoDecoder Chatbot",
-    description="A lightweight, custom-trained GPT-style decoder built from scratch."
-)
-
-iface.launch()
+chat_history = []
+
+def chat(user_input):
+    global chat_history
+
+    # Append user input
+    chat_history.append(f"User: {user_input}")
+
+    # Prepare full conversation context
+    context = "\n".join(chat_history)
+    evo_reply = generate_response(context)
+
+    # Append Evo's response
+    chat_history.append(f"Evo: {evo_reply}")
+
+    # Keep last 10 turns to avoid overlong context
+    if len(chat_history) > 20:
+        chat_history = chat_history[-20:]
+
+    return "\n".join(chat_history)
+
+with gr.Blocks() as demo:
+    gr.Markdown("### 🧠 Evo Chat (Stateful Level 2)")
+    chatbot = gr.Textbox(label="Chat History", lines=15, interactive=False)
+    user_input = gr.Textbox(label="Your Message")
+
+    def submit_message(message):
+        return chat(message)
+
+    user_input.submit(submit_message, inputs=user_input, outputs=chatbot)
+
+demo.launch()