app.py

import streamlit as st
from signup import signup
from login import login
from query import run_query_app
from streamlit_option_menu import option_menu

# this the fucntion to show the greater value


def myFUnc():
    print('moazzam riaz')
    i = 1
    if i == 0:
        print('the number is geater than the value')

    else:
        print('the number is not grate')

# this the recursion function to calculate the factorial


def thiFunc(n):

    input('enter to calculate factorial', n)
    if n == 0 or n == 1:
        return 1

    else:
        return n * thiFunc(n - 1)

# this the function to including inheritaNCE and method overloading polymorphism


class Animal:

    def sound():
        print('aniaml sound')


class Dog(Animal):

    def sound():
        print('boww  bpoww')


# this class is with a constructor which will be called automaticlly when the object is created
class Cat(Animal):

    def sound():
        print('meoww meoww')

    def __init__(self, a, b):

        self.a = a,
        self.b = b,

def main():

    st.title("Document Query System")

    # Step 1: Initialize session state variables
    if 'username' not in st.session_state:
        st.session_state['username'] = None
    if 'login_successful' not in st.session_state:
        st.session_state['login_successful'] = False

    # Step 2: Check if user is logged in
    if st.session_state['username'] is None:
        # User is not logged in, display login and signup options
        selection = option_menu(
            menu_title="Main Menu",
            options=["Login", "Signup"],
            icons=["person", "person"],
            menu_icon="cast",
            default_index=1
        )

        if selection == "Login":
            st.session_state['username'] = login()
            if st.session_state['username']:
                st.session_state['login_successful'] = True
        elif selection == "Signup":
            signup()

    # Step 3: Check if user is logged in successfully
    if 'login_successful' in st.session_state and st.session_state['login_successful']:
        # User is logged in, display welcome message and query page
        if 'username' in st.session_state and st.session_state['username']:
            st.subheader(f"Welcome, {st.session_state['username']}!")
            run_query_app(st.session_state['username'])


if st.sidebar.button("Logout"):
    st.session_state['username'] = None
    st.session_state['login_successful'] = False
    st.empty()  # Clear the contents of the page

if __name__ == '__main__':
    main()