"""Brand-related utility functions."""

from permissions.constants import constants


def default_brand_from_brand(brand: str) -> str:
    """Convert a brand to its default brand (auth0 org).

    On the identity node, defaultBrand (despite the name) should actually be an auth0 org.
    Brands in PROFILE_BRANDS have an auth0 org of the same name;
    others should default to 'theorchard'.

    Args:
        brand: The brand to convert.

    Returns:
        The default brand (auth0 org) for the given brand.
    """
    if brand in constants.PROFILE_BRANDS:
        return brand
    elif brand in constants.SME_BRANDS:
        return constants.SONY_BRAND
    else:
        return constants.THEORCHARD_BRAND