#    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 keystoneauth1 import adapter
from oslo_utils import importutils
from osprofiler import web

from aodhclient import exceptions


def Client(version, *args, **kwargs):
    module = 'aodhclient.v%s.client' % version
    module = importutils.import_module(module)
    client_class = getattr(module, 'Client')
    return client_class(*args, **kwargs)


class SessionClient(adapter.Adapter):
    def request(self, url, method, **kwargs):
        kwargs.setdefault('headers', kwargs.get('headers', {}))
        # NOTE(sileht): The standard call raises errors from
        # keystoneauth, where we need to raise the aodhclient errors.
        raise_exc = kwargs.pop('raise_exc', True)
        kwargs['headers'].update(web.get_trace_id_headers())
        resp = super(SessionClient, self).request(url,
                                                  method,
                                                  raise_exc=False,
                                                  **kwargs)

        if raise_exc and resp.status_code >= 400:
            raise exceptions.from_response(resp, url, method)
        return resp
