from dataclasses import dataclass
import os

from dotenv import load_dotenv

load_dotenv()


def _env_bool(name: str, default: bool = False) -> bool:
    value = os.getenv(name)
    if value is None:
        return default
    return value.strip().lower() in {"1", "true", "yes", "on"}


@dataclass(frozen=True)
class Settings:
    env: str = os.getenv("ENV", "prod").strip().lower()
    test_ui_enabled: bool = _env_bool("FACE_LOCK_TEST_UI", True)
    auth_token: str = os.getenv("FACE_LOCK_AUTH_TOKEN", "").strip()
    auth_header_name: str = os.getenv("FACE_LOCK_AUTH_HEADER", "X-API-Key").strip()

    @property
    def auth_enabled(self) -> bool:
        return bool(self.auth_token)


settings = Settings()