# Copyright [2017] [Red Hat, Inc.]
#
# 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.


from __future__ import absolute_import, division, print_function
__metaclass__ = type


from kubernetes.dynamic import DynamicClient

from .apply import k8s_apply
from .exceptions import ApplyException


class K8SDynamicClient(DynamicClient):
    def apply(self, resource, body=None, name=None, namespace=None):
        body = super().serialize_body(body)
        body['metadata'] = body.get('metadata', dict())
        name = name or body['metadata'].get('name')
        if not name:
            raise ValueError("name is required to apply {0}.{1}".format(resource.group_version, resource.kind))
        if resource.namespaced:
            body['metadata']['namespace'] = super().ensure_namespace(resource, namespace, body)
        try:
            return k8s_apply(resource, body)
        except ApplyException as e:
            raise ValueError("Could not apply strategic merge to %s/%s: %s" %
                             (body['kind'], body['metadata']['name'], e))
