from pydantic_settings import BaseSettings
from functools import lru_cache


class Settings(BaseSettings):
    APP_NAME: str = "InfoUser Monitor"
    SECRET_KEY: str = "change-me-in-production"
    ALGORITHM: str = "HS256"
    ACCESS_TOKEN_EXPIRE_MINUTES: int = 30
    REFRESH_TOKEN_EXPIRE_DAYS: int = 7
    AGENT_TOKEN: str = "agent-secret-token"
    DATABASE_URL: str = "sqlite:///./data/monitor.db"
    ADMIN_USERNAME: str = "admin"
    ADMIN_PASSWORD: str = "admin"
    CREATE_ADMIN_ON_STARTUP: bool = True
    OFFLINE_THRESHOLD_MINUTES: int = 130
    NOTIFICATION_WEBHOOK_URL: str = ""
    NOTIFICATION_TELEGRAM_BOT_TOKEN: str = ""
    NOTIFICATION_TELEGRAM_CHAT_ID: str = ""
    TIMEZONE: str = "Asia/Krasnoyarsk"

    class Config:
        env_file = ".env"


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