"""Central configuration.

Secrets are read from environment variables so they never live in source code.
Set them in your shell or a local ``.env`` file (which is git-ignored):

    export OANDA_ACCESS_TOKEN="your-token-here"
"""
import os

# OANDA v20 REST access token (required only for live data downloads).
OANDA_ACCESS_TOKEN = os.environ.get("OANDA_ACCESS_TOKEN", "")

# Default instrument / granularity for downloads.
DEFAULT_INSTRUMENT = os.environ.get("INSTRUMENT", "EUR_USD")
DEFAULT_GRANULARITY = os.environ.get("GRANULARITY", "M5")

# Where trained models are written / loaded from.
MODEL_DIR = os.environ.get("MODEL_DIR", "models")