# Copyright (c) 2013 Rackspace, 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.


import falcon
from oslo_serialization import jsonutils
from oslo_utils import uuidutils
import six.moves.urllib.parse as urlparse

from zaqar.tests.unit.transport.wsgi import base


class TestHomeDocument(base.V2Base):

    config_file = 'wsgi_mongodb.conf'

    def test_json_response(self):
        self.headers = {
            'Client-ID': uuidutils.generate_uuid(),
            'X-Project-ID': '8383830383abc_'
        }
        body = self.simulate_get(self.url_prefix + '/', headers=self.headers)
        self.assertEqual(falcon.HTTP_200, self.srmock.status)

        content_type = self.srmock.headers_dict['Content-Type']
        self.assertEqual('application/json-home', content_type)

        try:
            jsonutils.loads(body[0])
        except ValueError:
            self.fail('Home document is not valid JSON')

    def test_href_template(self):
        self.headers = {
            'Client-ID': uuidutils.generate_uuid(),
            'X-Project-ID': '8383830383'
        }
        body = self.simulate_get(self.url_prefix + '/', headers=self.headers)
        self.assertEqual(falcon.HTTP_200, self.srmock.status)
        resp = jsonutils.loads(body[0])
        queue_href_template = resp['resources']['rel/queue']['href-template']
        path_1 = 'https://zaqar.example.com' + self.url_prefix
        path_2 = 'https://zaqar.example.com' + self.url_prefix + '/'

        # Verify all the href template start with the correct version prefix
        def get_href_or_template(resource):
            return resource.get('href-template', '') or resource['href']

        for resource in list(resp['resources']):
            self.assertTrue(
                get_href_or_template(resp['resources'][resource]).
                startswith(self.url_prefix))

        url = urlparse.urljoin(path_1, queue_href_template)
        expected = ('https://zaqar.example.com' + self.url_prefix +
                    '/queues/foo')
        self.assertEqual(expected, url.format(queue_name='foo'))

        url = urlparse.urljoin(path_2, queue_href_template)
        self.assertEqual(expected, url.format(queue_name='foo'))
