app.py

import gradio as gr
import os
from utils import init_openai, transcribe_audio, chat_with_gpt

# Load API key
init_openai()

# Define the system prompt for RentBot
SYSTEM_PROMPT = (
    "You are RentBot, a friendly virtual leasing assistant. "
    "You answer inquiries about rental listings, schedule showings, and provide clear instructions to potential tenants."
)


def handle_interaction(audio) -> tuple[str, str]:
    """
    Gradio handler: saves incoming audio, transcribes it, then chats with GPT.
    Returns the transcript and the bot response.
    """
    # Save incoming audio to disk
    audio_path = "input.wav"
    audio.save(audio_path)

    # Transcribe audio -> text
    transcript = transcribe_audio(audio_path)

    # Generate bot reply
    reply = chat_with_gpt(SYSTEM_PROMPT, transcript)
    return transcript, reply


def main():
    """
    Launch the Gradio interface.
    """
    iface = gr.Interface(
        fn=handle_interaction,
        inputs=gr.Audio(source="microphone", type="filepath", label="Speak to RentBot"),
        outputs=[
            gr.Textbox(label="Transcribed Text"),
            gr.Textbox(label="RentBot Reply")
        ],
        title="RentBot 24/7",
        description=(
            "An AI virtual receptionist for property managers, "
            "built with OpenAI Whisper and GPT-4o-mini."
        ),
        allow_flagging="never",
        analytics_enabled=False
    )
    iface.launch(server_name="0.0.0.0", server_port=7860, share=True)


if __name__ == "__main__":
    main()