main.py

import streamlit as st
from articles import articles
from youtube import youtube_summary

if "show_homepage_content" not in st.session_state:
    st.session_state.show_homepage_content = True  # Initial state


def display_homepage_content():
    st.title("TopicHub 🎥")
    with st.expander("Click to view rules"):
        st.markdown(
            "This is an End to End LLM Project Made using Langchain. User initially have 2 choices either they can "
            "directly talk with the new articles whether it is summarization or QnA related to  it, "
            "up to 3 URLs"
            "are"
            "supported and another one is User can input the Youtube Video Link and the summary for the "
            "video ill"
            "be"
            "provided. LLM Model used - Open AI")


st.sidebar.title("Functionalities")

if st.sidebar.button("Homepage"):
    st.session_state.show_homepage_content = True
if st.sidebar.button("News Articles"):
    st.session_state.show_homepage_content = False
    articles()
if st.sidebar.button("Youtube Video Summarization"):
    st.session_state.show_homepage_content = False
    youtube_summary()

# --- Display Content based on State---
if st.session_state.show_homepage_content:
    display_homepage_content()