import re
from contextlib import suppress

import markdown
from django.utils.html import strip_tags


def render_markdown(text: str) -> str:
    """Render a markdown string to HTML."""
    with suppress(Exception):
        return markdown.markdown(text, extensions=["tables", "fenced_code", "nl2br"])
    return text


def strip_markdown(text: str) -> str:
    """Render markdown to HTML then strip all tags, collapsing whitespace."""
    with suppress(Exception):
        html = render_markdown(text)
        plain = strip_tags(html)
        return re.sub(r"\s+", " ", plain).strip()
    return text