import requests
import trafilatura
from newspaper import Article
from typing import Optional
from bs4 import BeautifulSoup

HEADERS = {
    "User-Agent": (
        "Mozilla/5.0 (Windows NT 10.0; Win64; x64) "
        "AppleWebKit/537.36 (KHTML, like Gecko) "
        "Chrome/115.0.0.0 Safari/537.36"
    )
}

def clean_text(text: str) -> str:
    # Remove excess whitespace, ads, and headings
    cleaned = text.replace("\n", " ").strip()
    cleaned = BeautifulSoup(cleaned, "html.parser").text  # remove tags
    cleaned = " ".join(cleaned.split())  # remove multiple spaces
    return cleaned

def scrape_url(url: str, timeout: int = 10) -> Optional[str]:
    try:
        response = requests.get(url, timeout=timeout, headers=HEADERS)
        if response.status_code == 200:
            html = response.text
            extracted = trafilatura.extract(html, include_comments=False, include_tables=False)
            if extracted and len(extracted.split()) > 100:
                return clean_text(extracted)
    except Exception as e:
        print(f"⚠️ Trafilatura failed for {url}: {e}")

    try:
        article = Article(url)
        article.download()
        article.parse()
        if article.text and len(article.text.split()) > 100:
            return clean_text(article.text)
    except Exception as e:
        print(f"⚠️ Newspaper3k failed for {url}: {e}")

    return None