from pathlib import Path
import os

from dotenv import load_dotenv


BASE_DIR = Path(__file__).resolve().parents[2]
ENV_FILE_PATH = Path(os.getenv("ENV_FILE_PATH", str(BASE_DIR / ".env"))).expanduser()
if not ENV_FILE_PATH.is_absolute():
    ENV_FILE_PATH = BASE_DIR / ENV_FILE_PATH

load_dotenv(ENV_FILE_PATH)


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


def configured_path(name: str, default: str) -> Path:
    path = Path(os.getenv(name, default)).expanduser()
    return path if path.is_absolute() else BASE_DIR / path


class Settings:
    """Centralized settings facade used during the backend template migration."""

    server_host = os.getenv("SERVER_HOST", "0.0.0.0")
    server_port = int(os.getenv("SERVER_PORT", "8000"))
    service_title = os.getenv("SERVICE_TITLE", "软件自动升级服务")
    admin_token = os.getenv("ADMIN_TOKEN", "").strip()


settings = Settings()