Update app.py

app.py

@@ -215,28 +215,32 @@ def insert_prompt(current_text, prompt):
 
 # Function to add a user's message to the chat history and clear the input box
 def add_message(history, message):
-    history.append((message, None))  # Add the user's message to the chat history
+    if message.strip():
+        history.append((message, None))  # Add the user's message to the chat history only if it's not empty
     return history, gr.Textbox(value="", interactive=True, show_label=False)  # Clear the input box
 
 
+
 # Define the function to handle the conversation and get the response in a streaming way
 def chat_with_bot(history, user_message):
-    # Add user message to the chat history
-    history.append((user_message, ""))
+    if not user_message.strip():
+        # If the user message is empty or whitespace, add an appropriate error message.
+        history.append(("It seems like your question is missing. Could you please provide more details or ask your question again?", None))
+        yield history
+        return
 
-    # Generate the response in a streaming manner
+    # Proceed with adding the user message and generating the bot response
+    history.append((user_message, ""))
     response = get_response(user_message)
-    
-    # Simulate streaming by yielding each character of the response
+
     for character in response:
         history[-1] = (user_message, history[-1][1] + character)
         yield history  # Stream each character
-        time.sleep(0.05)  # Adjust delay as needed for real-time effect
+        time.sleep(0.05)  # Adjust delay as needed
 
     yield history  # Final yield to ensure full response is displayed
 
 
-
 # Create the Gradio Blocks interface
 with gr.Blocks() as demo:
     chatbot = gr.Chatbot([], elem_id="RADAR", bubble_full_width=False)
@@ -263,8 +267,16 @@ with gr.Blocks() as demo:
             gr.Examples(examples=examples, fn=insert_prompt, inputs=question_input, outputs=question_input)
 
     # Define interactions
-    get_response_btn.click(fn=add_message, inputs=[chatbot, question_input], outputs=[chatbot, question_input])\
-                    .then(fn=chat_with_bot, inputs=[chatbot, question_input], outputs=chatbot)
+    get_response_btn.click(
+    fn=add_message, 
+    inputs=[chatbot, question_input], 
+    outputs=[chatbot, question_input]
+).then(
+    fn=chat_with_bot, 
+    inputs=[chatbot, question_input], 
+    outputs=chatbot
+)
+
     generate_audio_btn.click(fn=generate_audio_from_last_response, inputs=chatbot, outputs=audio_output)
     clean_btn.click(fn=clear_fields, inputs=[], outputs=[chatbot, question_input, audio_output])