"""Validation for request_context."""
from owsrequest import error_response

from ows_product_physical.constant import header


def validate_request_context(request_context,
                             profile_type=header.DISTRIBUTION_PROFILE_TYPE,
                             role=None):
    """Check that request context is valid.

    Args:
      request_context (owsrequest.RequestContext): request context object
      profile_type (str): profile type to validate
      role (str): role to validate

    Returns (response.Response | True):
        return forbidden oto response if headers invalid, otherwise True
    """
    if any([
        request_context.context_type != 'profile',
        request_context.profile_type != profile_type,
        role and role not in request_context.roles,
    ]):
        return error_response.create_error_forbidden()

    return True