from pydantic_settings import BaseSettings
from functools import lru_cache


class Settings(BaseSettings):
    admin_email: str = "admin@smartup.local"
    admin_password: str = "changeme"
    jwt_secret: str = "change-me-in-production"
    jwt_expire_hours: int = 24
    database_url: str = "sqlite:////app/data/app.db"
    tz: str = "Asia/Shanghai"
    # consecutive failures before upstream goes unhealthy
    unhealthy_threshold: int = 3

    model_config = {"env_file": ".env", "case_sensitive": False}


@lru_cache
def get_settings() -> Settings:
    return Settings()