<filename>legal-api/src/legal_api/services/authz.py
# Copyright © 2019 Province of British Columbia
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

"""This manages all of the authentication and authorization service."""
from flask import g
from flask_jwt_oidc import JwtManager


STAFF_ROLE = 'staff'
BASIC_USER = 'basic'
COLIN_SVC_ROLE = 'colin'


def authorized(identifier: str, jwt: JwtManager) -> bool:
    """Assert that the user is authorized to create filings against the business identifier."""
    # if they are registry staff, they are always authorized
    if jwt.validate_roles([STAFF_ROLE]):
        return True

    if jwt.validate_roles([COLIN_SVC_ROLE]):
        return True

    token = g.jwt_oidc_token_info
    username = token.get('username', None)

    if username and jwt.validate_roles([BASIC_USER]) and identifier.upper() == username.upper():
        return True

    return False
