"""Load configuration from environment. Fail fast if BOT_TOKEN is missing."""
import os
from pathlib import Path

from dotenv import load_dotenv

load_dotenv()

BOT_TOKEN = os.getenv("BOT_TOKEN")
if not BOT_TOKEN:
    raise SystemExit("BOT_TOKEN is not set. Copy .env.example to .env and set your token from @BotFather.")

DATABASE_URL = os.getenv("DATABASE_URL", "sqlite:///data/duty_teller.db")
MINI_APP_BASE_URL = os.getenv("MINI_APP_BASE_URL", "").rstrip("/")
HTTP_PORT = int(os.getenv("HTTP_PORT", "8080"))
DATA_DIR = Path(__file__).resolve().parent / "data"