# app.py
# -------------------------------------------
# Imports
# -------------------------------------------
import gradio as gr
from main import process_user_query  # Import only the processing function

# -------------------------------------------
# Interface Elements
# -------------------------------------------

# Function to handle chat interactions
def chat_interface(user_input, history):
    """
    Manages the chat interface flow:
    - Sends user input to the query processor.
    - Returns updated conversation history.
    """
    response = process_user_query(user_input)
    history.append(("User", user_input))
    history.append(("Bot", response))
    return "", history  # Return empty input box and updated history

# Function to clear chat
def clear_chat():
    """
    Clears the chat history.
    """
    return []

# -------------------------------------------
# Gradio Interface Setup
# -------------------------------------------
def run_gradio_app():
    """
    Configures and launches the Gradio app.
    """
    with gr.Blocks() as chat_app:
        gr.Markdown("### ShopWise Chatbot")  # Title for the chat UI
        chatbot = gr.Chatbot()  # Chat display
        
        # Text input and buttons
        with gr.Row():
            user_input = gr.Textbox(show_label=False, placeholder="Type your question here...")
            submit_button = gr.Button("Submit")
        
        clear_button = gr.Button("Clear Chat")
        
        # Button functionality
        submit_button.click(chat_interface, inputs=[user_input, chatbot], outputs=[user_input, chatbot])
        clear_button.click(clear_chat, outputs=chatbot)

    # Launch the Gradio interface
    chat_app.launch()

# Run the Gradio app if this is the main file
if __name__ == "__main__":
    run_gradio_app()