from __future__ import annotations

import os
from dataclasses import dataclass

from dotenv import load_dotenv


load_dotenv()


@dataclass(frozen=True)
class Config:
    database_url: str = os.getenv(
        "DATABASE_URL",
        "mysql+pymysql://switchbot:switchbot_password@localhost:3306/switchbot",
    )
    switchbot_token: str | None = os.getenv("SWITCHBOT_TOKEN")
    switchbot_secret: str | None = os.getenv("SWITCHBOT_SECRET")
    collect_interval_seconds: int = int(os.getenv("COLLECT_INTERVAL_SECONDS", "900"))
    app_timezone: str = os.getenv("APP_TIMEZONE", "Europe/London")
    flask_secret_key: str = os.getenv("FLASK_SECRET_KEY", "dev-only-secret")
    healthcheck_url: str | None = os.getenv("HEALTHCHECK_URL")


config = Config()