import os
from pathlib import Path


class Config:

    def __init__(self) -> None:

        self.host = os.getenv('HOST') or '0.0.0.0'
        self.port = int(os.getenv('PORT') or 4009)
        self.path_length = int(os.getenv('PATH_LENGTH') or 255)
        self.cookies_dir = Path(os.getenv('COOKIES_DIR') or 'cookies')


_config: Config | None = None


def get() -> Config:
    global _config
    if _config is None:
        _config = Config()
    return _config