import os
from functools import lru_cache


class Config:
    def __init__(self) -> None:
        self.secret_key: str = os.environ.get("SECRET_KEY", "")
        self.database_url: str = os.environ.get("DATABASE_URL", "sqlite:////data/db.sqlite3")
        self.master_url: str | None = os.environ.get("MASTER_URL")
        self.master_token: str | None = os.environ.get("MASTER_TOKEN")

    @property
    def db_path(self) -> str:
        url = self.database_url
        if url.startswith("sqlite:////"):
            return "/" + url[len("sqlite:////"):]
        if url.startswith("sqlite:///"):
            return url[len("sqlite:///"):]
        return url


@lru_cache
def get_config() -> Config:
    return Config()