from selenium import webdriver
from selenium.webdriver.common.by import By
import streamlit as st
from selenium.webdriver import FirefoxOptions
import re
import logging



def scrape_text(url, n_words=15):
    try:
        driver = None
        logging.warning("Initiated Scraping")
        user_agent = "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/123.0.0.0 Safari/537.36"
        opts = FirefoxOptions()
        opts.add_argument("--headless")
        opts.add_argument(f"user-agent={user_agent}")
        driver = webdriver.Firefox(options=opts)
        driver.set_page_load_timeout(60)
        driver.get(url)
        elem = driver.find_element(By.TAG_NAME, "body").text
        # h1 = driver.find_element(By.TAG_NAME, "h1").text
        # elem = h1 + "\n" + elem
        sents = elem.split("\n")
        sentence_list = []
        for sent in sents:
            sent = sent.strip()
            if (len(sent.split()) >= n_words) and (len(re.findall(r"^\w.+[^\w\)\s]$", sent))>0):
                sentence_list.append(sent)
        driver.quit()
        logging.warning("Closed Webdriver")
        logging.warning("Successfully scraped text")
        if len(sentence_list) < 3:
            raise Exception("Found nothing to scrape.")
        return "  \n\n\n".join(sentence_list)
    except:
        if driver:
            driver.close()
            logging.warning("Closed Webdriver")
        raise