"""Configuration loaded from environment variables."""
from __future__ import annotations

import os
from dotenv import load_dotenv

load_dotenv()

TELEGRAM_TOKEN: str = os.getenv("TELEGRAM_TOKEN", "")
TWELVE_DATA_API_KEY: str = os.getenv("TWELVE_DATA_API_KEY", "")

SUPPORTED_PAIRS: list[str] = ["EURUSD", "GBPUSD", "USDJPY", "AUDUSD", "USDCAD", "XAUUSD"]
SUPPORTED_TIMEFRAMES: list[str] = ["15min", "1h", "4h", "1day"]

if not TELEGRAM_TOKEN or not TWELVE_DATA_API_KEY:
    raise RuntimeError(
        "Missing TELEGRAM_TOKEN or TWELVE_DATA_API_KEY. "
        "Copy .env.example to .env and fill in values."
    )