Update app.py

app.py

@@ -1,36 +1,30 @@
-# app.py — Final version using Gradio "messages" format
-
+# app.py — Gradio interface for EvoDecoder conversational chatbot
 import gradio as gr
 from generate import generate_response
 
-# Chat function returning proper messages format
-def chat_fn(history, message):
-    # Build full conversation context from history
-    context = ""
-    for msg in history:
-        context += f"User: {msg['content']}\n" if msg["role"] == "user" else f"Assistant: {msg['content']}\n"
-    context += f"User: {message}\n"
-
-    # Generate reply from Evo
-    reply = generate_response(context)
-
-    # Append user and assistant messages
-    history.append({"role": "user", "content": message})
-    history.append({"role": "assistant", "content": reply})
-    return history, ""
-
-# Launch Gradio app
-with gr.Blocks() as demo:
+# Initialize Gradio Chatbot with OpenAI-style message format
+with gr.Blocks(title="🧠 Chat with EvoDecoder — Lightweight Conversational AI") as demo:
     gr.Markdown("## 🧠 Chat with EvoDecoder — Lightweight Conversational AI")
 
     chatbot = gr.Chatbot(label="Chat with Evo", type="messages")
-    state = gr.State([])
-
-    with gr.Row():
-        msg = gr.Textbox(label="Your message", placeholder="Ask Evo anything...")
-        send_btn = gr.Button("Send")
-
-    send_btn.click(chat_fn, inputs=[state, msg], outputs=[chatbot, msg])
-    msg.submit(chat_fn, inputs=[state, msg], outputs=[chatbot, msg])
-
+    msg = gr.Textbox(placeholder="Ask Evo anything...", label="Your message")
+    clear = gr.Button("Clear Chat")
+
+    def chat_fn(history, message):
+        """Handles each user input and appends Evo's response."""
+        history = history or []
+        response = generate_response(message)
+        history.append({"role": "user", "content": message})
+        history.append({"role": "assistant", "content": response})
+        return history
+
+    def clear_fn():
+        """Clears the chat history."""
+        return []
+
+    msg.submit(chat_fn, [chatbot, msg], chatbot)
+    msg.submit(lambda: "", None, msg)
+    clear.click(clear_fn, outputs=chatbot)
+
+# Launch the app
 demo.launch()