"""Feature flag checks."""

import config
from pythonfeatures.pythonfeatures import get_single_feature_by_attributes

from src.exceptions import AsgvSfnFeatureDisabledError


def check_asgv_sfn_enabled() -> None:
    """Raise AsgvSfnFeatureDisabledError if the ASGV SFN feature flag is disabled."""
    result = get_single_feature_by_attributes(config.ASGV_SFN_FF, {})
    assert result.status == 200, result.message
    if result.message != "enabled":
        raise AsgvSfnFeatureDisabledError(
            f"ASGV SFN disabled by feature flag: {config.ASGV_SFN_FF}"
        )