import pandas as pd
import streamlit as st
from Scrapper_Summarizer import scrape_dawn, scrape_brecorder, scrape_tnews

def load_articles_in_batches(articles, batch_size, offset):
    return articles[offset:offset + batch_size]

def News_scrapper():
    # App title and description
    st.title("📰 Business News Scrapper & Summarizer")
    st.write("This app scrapes the latest business news from *Dawn* and *Business Recorder* and summarizes the articles for easy reading.")

    # Add a sidebar for navigation
    st.sidebar.write("Use this sidebar to navigate between options.")
    st.sidebar.markdown("### Scraping Options")

    # Add a button for Dawn News scraping
    if st.sidebar.button('Scrape Dawn News'):
        st.subheader("Latest Business News from Dawn")
        with st.spinner("Scraping and summarizing news from Dawn..."):
            dawn_articles = scrape_dawn()
            if dawn_articles:
                df = pd.DataFrame(dawn_articles)
                st.dataframe(df)
            else:
                st.write("No articles found.")

    # Add a button for Business Recorder scraping
    if st.sidebar.button('Scrape Business Recorder'):
        st.subheader("Latest Business News from Business Recorder")
        with st.spinner("Scraping and summarizing news from Business Recorder..."):
            brecorder_articles = scrape_brecorder()
            if brecorder_articles:
                df = pd.DataFrame(brecorder_articles)
                st.dataframe(df)
            else:
                st.write("No articles found.")

    # Add a button for The News scraping
    if st.sidebar.button('Scrape The News'):
        st.subheader("Latest Business News from The News")
        with st.spinner("Scraping and summarizing news from The News..."):
            tnews_articles = scrape_tnews()
            if tnews_articles:
                df = pd.DataFrame(tnews_articles)
                st.dataframe(df)
            else:
                st.write("No articles found.")

    # Sidebar details and beautification
    st.sidebar.markdown("---")
    st.sidebar.info("This utility scrapes the latest business articles and generates summaries using the BART summarization model. Great for quick reads!")
    st.sidebar.markdown("---")
    st.sidebar.write("Created by Strategy")