update app.py gtts

app.py

@@ -100,15 +100,20 @@ with gr.Blocks(css="footer {visibility: hidden}") as app:
             chatbot = gr.Chatbot(height=400)
             msg = gr.Textbox(placeholder="Ask a question about agriculture...", label="Your Question")
             clear = gr.Button("🗑 Clear Chat")
+            tts_button = gr.Button("🔊 Text-to-Speech")
+            audio_player = gr.Audio(label="Response Audio", interactive=False)
             chat_history_state = gr.State([])
 
-            msg.submit(fn=groq_chatbot, inputs=[msg, chat_history_state], outputs=[chatbot, msg])
-            clear.click(lambda: ([], ""), None, [chatbot, msg], queue=False)
+            # Submit user question, clear audio on new question
+            msg.submit(fn=chatbot_with_audio, inputs=[msg, chat_history_state], outputs=[chatbot, msg, audio_player])
+            clear.click(lambda: ([], "", None), None, [chatbot, msg, audio_player], queue=False)
+
+            # TTS button plays latest chatbot response
+            tts_button.click(fn=on_tts_click, inputs=chat_history_state, outputs=audio_player)
 
     gr.Markdown("---")
     gr.Markdown("### ℹ️ About this Application")
     gr.Markdown("This AI-powered tool helps diagnose plant diseases and provides treatment recommendations. It also includes a chatbot for general agricultural queries.")
 
-# Launch Gradio app
 if __name__ == "__main__":
     app.launch(share=True)