app.py

import streamlit as st
import time
import pyaudio
import wave
import numpy as np
import soundfile as sf
from utils.functions import voice_to_text, get_gemini_response, text_to_audio
import pygame

def main():
    st.title("Mental Health Chatbot")

    if "messages" not in st.session_state:
        st.session_state.messages = []

    for message in st.session_state.messages:
        with st.container():
            if message["role"] == "user":
                st.markdown(f":speech_balloon: **You:** {message['content']}")
            else:
                st.markdown(f":robot: **Chatbot:** {message['content']}")

    if st.button("Speak"):
        with st.spinner('Recording...'):
            try:
                p = pyaudio.PyAudio()
                stream = p.open(format=pyaudio.paInt16, channels=1, rate=44100, input=True, frames_per_buffer=1024)
                frames = []

                for i in range(0, int(5 * 44100 / 1024)):
                    data = stream.read(1024)
                    frames.append(data)

                stream.stop_stream()
                stream.close()
                p.terminate()

                wf = wave.open("user_audio.wav", 'wb')
                wf.setnchannels(1)
                wf.setsampwidth(p.get_sample_size(pyaudio.paInt16))
                wf.setframerate(44100)
                wf.writeframes(b''.join(frames))
                wf.close()

                text_input = voice_to_text("user_audio.wav")
                if text_input != "Error during transcription":
                    st.session_state.messages.append({"role": "user", "content": text_input})
                    response = get_gemini_response(text_input)
                    if response:
                        st.session_state.messages.append({"role": "assistant", "content": response})
                        audio_array = text_to_audio(response)
                        bot_audio_file = "bot_audio.wav"
                        sf.write(bot_audio_file, audio_array, 44100)
                        pygame.mixer.init()
                        pygame.mixer.music.load(bot_audio_file)
                        pygame.mixer.music.play()
                        while pygame.mixer.music.get_busy():
                            time.sleep(1)
            except Exception as e:
                st.error(f"Error: {e}")

if __name__ == "__main__":
    main()