from __future__ import annotations

import re


def sanitize_text(content: str, max_chars: int = 2000) -> str:
    if len(content) <= max_chars:
        return content
    return content[: max_chars - 3] + "..."


def markdown_to_native(md_text: str) -> str:
    return md_text


def strip_html(content: str) -> str:
    return re.sub(r"<[^>]+>", "", content or "")


class KuaishouFormat:
    def __init__(self, max_text_length: int = 2000):
        self._max_text_length = max_text_length

    def sanitize_text(self, content: str) -> str:
        return sanitize_text(content, self._max_text_length)

    def markdown_to_native(self, md_text: str) -> str:
        return markdown_to_native(md_text)

    def strip_html(self, content: str) -> str:
        return strip_html(content)