# -*- coding: utf8 -*-
# ============LICENSE_START=======================================================
# org.onap.vvp/validation-scripts
# ===================================================================
# Copyright © 2020 AT&T Intellectual Property. All rights reserved.
# ===================================================================
#
# Unless otherwise specified, all software contained herein is licensed
# under the Apache License, Version 2.0 (the "License");
# you may not use this software except in compliance with the License.
# You may obtain a copy of the License at
#
#             http://www.apache.org/licenses/LICENSE-2.0
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# 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.
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#
#
# Unless otherwise specified, all documentation contained herein is licensed
# under the Creative Commons License, Attribution 4.0 Intl. (the "License");
# you may not use this documentation except in compliance with the License.
# You may obtain a copy of the License at
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#             https://creativecommons.org/licenses/by/4.0/
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# Unless required by applicable law or agreed to in writing, documentation
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# ============LICENSE_END============================================
import sys

from onap_client.client.catalog import Catalog

CACHED_CLIENT = None


def get_client(config_file=None, **kwargs):
    clients = sys.modules[__name__]
    if not clients.CACHED_CLIENT or config_file:
        clients.CACHED_CLIENT = Client(config_file, **kwargs)
    return clients.CACHED_CLIENT


class Client(Catalog):
    """Base class for the ONAP client. Subclasses are dynamically
    loaded and added as attributes. Instantiate and use this class
    to interact with ONAP."""
    @property
    def namespace(self):
        return "onap"

    @property
    def catalog_resources(self):
        return {}