"""
id: scraper
title: HTML Scraper
author: admin
description: Extract title, text, and links from an HTML page; accepts url or raw html.
version: 0.1.0
license: Proprietary
"""

import re
import html

try:
    from bs4 import BeautifulSoup  # optional
except Exception:
    BeautifulSoup = None


class Tools:
    def extract(self, html_text: str = "", url: str = "") -> dict:
        text = html_text
        if not text and url:
            import urllib.request

            text = (
                urllib.request.urlopen(url, timeout=20)
                .read()
                .decode("utf-8", errors="replace")
            )
        if not text:
            return {"error": "no html or url provided"}
        if BeautifulSoup:
            soup = BeautifulSoup(text, "html.parser")
            title = (
                soup.title.string.strip() if soup.title and soup.title.string else ""
            )
            body = soup.get_text(" ", strip=True)
            links = []
            for a in soup.find_all("a", href=True):
                href = urllib.parse.urljoin(url, a["href"]) if url else a["href"]
                links.append({"href": href, "text": a.get_text(strip=True)})
            return {"title": title, "text": body[:20000], "links": links[:200]}
        # fallback regex-based
        title = ""
        m = re.search(r"<title[^>]*>(.*?)</title>", text, re.I | re.S)
        if m:
            title = html.unescape(re.sub("<[^<]+?>", "", m.group(1))).strip()
        body = re.sub(
            "<script[\s\S]*?</script>|<style[\s\S]*?</style>", "", text, flags=re.I
        )
        body = re.sub("<[^<]+?>", " ", body)
        body = re.sub("\s+", " ", body).strip()
        links = [
            {"href": html.unescape(h)} for h in re.findall(r'href="([^"]+)"', text)
        ][:200]
        return {"title": title, "text": body[:20000], "links": links}