app.py

# Main driver code of chatbot
from cgitb import text
import streamlit as st
from streamlit_option_menu import option_menu
from src.components.avatarsys import AvatarSystem
from src.exception.exception import customexception
from src.utils.accessory import play_speech, listen, save_output, load_output
import speech_recognition as sr
import sys

# Global 
salutation = "Pleasure meeting you. Have a nice day!"

# Page title
st.markdown("<h1 style='text-align: center;'>Hi, Dr Bot Junior here.</h1>", unsafe_allow_html=True)
st.markdown("<h3 style='text-align: center;'>I am your chatbot assistant.</h3>", unsafe_allow_html=True)

mode = option_menu("Choose mode of interaction", ["Text", "Voice"], 
    icons=['heart-pulse', 'mic'], 
    menu_icon="cast", default_index=0, orientation="horizontal")

if "HF_TOKEN" not in st.session_state:
    st.session_state.HF_TOKEN = ''
# st.write("Add your Huggingface Access Token to use the chatbot.")
# st.session_state.HF_TOKEN = st.text_input("Your Access Token: ")

# Chatbot configuration initiation
if st.session_state.HF_TOKEN == '':
    avatar = AvatarSystem(st.session_state.HF_TOKEN)

def chat_history(input, response, sentiment):
    if 'history' not in st.session_state:
        st.session_state.history = dict()
    st.session_state.history[input] = [response, sentiment]
    return st.session_state.history

def response(input_text):
    # Getting response and sentiment of response 
    output = avatar.process_input(input_text)
    # Save output response in txt
    save_output(output)
    response_sentiment = output['emotion']
    ans = load_output()
        
    return ans, response_sentiment

# Voice to text conversion
r = sr.Recognizer()

def record_voice():
    try:
        with sr.Microphone() as source:
            st.write("Speak: ") # print("Say something!")
            st.write("Please wait, response under process...")
            audio = r.listen(source)
            # r.adjust_for_ambient_noise(source, duration=0.2)
            text = r.recognize_google(audio)
            user_input = text + '?'

            return user_input
    
    except sr.RequestError as e:
        raise customexception("Could not request results: {0}".format(e), sys)

    except sr.UnknownValueError:
        raise customexception("Unknown error occurred.", sys)
                

if mode == "Text" and st.session_state.HF_TOKEN == '':    
    if 'chathist' not in st.session_state:
        st.session_state.chathist = dict()

    # Form requires unique key
    with st.form(key=f'Chat form', clear_on_submit=True):
        user_input = st.text_input("You: ", value="", placeholder="Ask anything or Type 'Exit'")
        col1, col2, col3, col4, col5, col6 = st.columns(6)
        save = col6.form_submit_button("Click here")
        
    if save and user_input != "":
        user_input = user_input.lower() + '?'

        # Exiting the chat
        if 'exit' in user_input:
            st.write(salutation)
        else:
            # Getting response and sentiment of response 
            ans, senti = response(user_input)
            
            # Chat history 
            st.session_state.chathist = chat_history(user_input, ans, senti)
            
            with st.container(border=True):
                user_col1, user_col2, user_col3 = st.columns([1, 1, 3], vertical_alignment="center")
                user = user_col3.container(border=True)
                user.write(f"You: {user_input}")
                bot_col1, bot_col2, bot_col3 = st.columns([3, 1, 1], vertical_alignment='center')
                bot = bot_col1.container(border=True)
                bot.write(f"Bot: {ans}")
                            
elif mode == "Voice" and st.session_state.HF_TOKEN == '':
    try:
        if 'chathist' not in st.session_state:
            st.session_state.chathist = dict()
        
        if st.button("speak"):
            user_input = record_voice()

            if user_input != "":

                # Exiting the chat
                if 'exit' in user_input:
                    st.write(salutation)
                else:
                    # Getting response and sentiment of response 
                    ans, senti = response(user_input)

                    st.write(f"You: {user_input}")
                    st.write(f"Bot: {ans}")
                    play_speech(ans)
                
                    # Chat history 
                    st.session_state.chathist = chat_history(user_input, ans, senti)
    except Exception as e:
        raise customexception(e, sys)
        
# Chat history display
if st.button("View Chat history"):
    st.markdown("### Chat History: ")
    with st.container(border=True):
        for key in st.session_state.chathist.keys():
            user_col1, user_col2, user_col3 = st.columns(3, vertical_alignment="center")
            user = user_col3.container(border=True)
            user.write(key)
            bot_col1, bot_col2, bot_col3 = st.columns([4, 1, 1], vertical_alignment='center')
            bot = bot_col1.container(border=True)
            bot.write(st.session_state.chathist[key][0])
    st.stop()

# if mode == "Doc-Bot" and st.session_state.HF_TOKEN != '':
#     st.write("Doc-Bot implementation")
   
#     if 'doc_chat_hist' not in st.session_state:
#         st.session_state.doc_chat_hist = dict()
    
#     # Form requires unique key
#     with st.form(key=f'Chat form', clear_on_submit=True):
#         user_input = st.text_input("You: ", value="", placeholder="Ask anything or Type 'Exit'")
#         col1, col2, col3, col4, col5, col6 = st.columns(6)
#         save = col6.form_submit_button("Click here")
        
#     if save and user_input != "":
#         user_input = user_input.lower() + '?'

#         # Exiting the chat
#         if 'exit' in user_input:
#             st.write(salutation)
#             play_speech(salutation)
           
#         # Getting response and sentiment of response 
#         ans, senti = response(user_input, docbot=True)
        
#         # Chat history 
#         st.session_state.doc_chat_hist = chat_history(user_input, ans, senti)
    
#     # Chat history display
#     st.markdown("### Chat History: ")
#     with st.container(border=True):
#         for key in st.session_state.doc_chat_hist.keys():
#             user_col1, user_col2, user_col3 = st.columns(3, vertical_alignment="center")
#             user = user_col3.container(border=True)
#             user.write(key)
#             bot_col1, bot_col2, bot_col3 = st.columns([4, 1, 1], vertical_alignment='center')
#             bot = bot_col1.container(border=True)
#             bot.write(st.session_state.doc_chat_hist[key][0])