# vim: tabstop=4 shiftwidth=4 softtabstop=4

# 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 copy

from keystoneclient import access
from keystoneclient import exceptions

from tests.v3 import client_fixtures
from tests.v3 import utils


class ServiceCatalogTest(utils.TestCase):
    def setUp(self):
        super(ServiceCatalogTest, self).setUp()
        self.AUTH_RESPONSE_BODY = client_fixtures.AUTH_RESPONSE_BODY
        self.RESPONSE = utils.TestResponse({
            "headers": client_fixtures.AUTH_RESPONSE_HEADERS
        })

    def test_building_a_service_catalog(self):
        auth_ref = access.AccessInfo.factory(self.RESPONSE,
                                             self.AUTH_RESPONSE_BODY)
        sc = auth_ref.service_catalog

        self.assertEquals(sc.url_for(service_type='compute'),
                          "https://compute.north.host/novapi/public")
        self.assertEquals(sc.url_for(service_type='compute',
                                     endpoint_type='internal'),
                          "https://compute.north.host/novapi/internal")

        self.assertRaises(exceptions.EndpointNotFound, sc.url_for, "region",
                          "South", service_type='compute')

    def test_service_catalog_endpoints(self):
        auth_ref = access.AccessInfo.factory(self.RESPONSE,
                                             self.AUTH_RESPONSE_BODY)
        sc = auth_ref.service_catalog

        public_ep = sc.get_endpoints(service_type='compute',
                                     endpoint_type='public')
        self.assertEquals(public_ep['compute'][0]['region'], 'North')
        self.assertEquals(public_ep['compute'][0]['url'],
                          "https://compute.north.host/novapi/public")

    def test_service_catalog_regions(self):
        self.AUTH_RESPONSE_BODY['token']['region_name'] = "North"
        auth_ref = access.AccessInfo.factory(self.RESPONSE,
                                             self.AUTH_RESPONSE_BODY)
        sc = auth_ref.service_catalog

        url = sc.url_for(service_type='image', endpoint_type='public')
        self.assertEquals(url, "http://glance.north.host/glanceapi/public")

        self.AUTH_RESPONSE_BODY['token']['region_name'] = "South"
        auth_ref = access.AccessInfo.factory(self.RESPONSE,
                                             self.AUTH_RESPONSE_BODY)
        sc = auth_ref.service_catalog
        url = sc.url_for(service_type='image', endpoint_type='internal')
        self.assertEquals(url, "http://glance.south.host/glanceapi/internal")

    def test_service_catalog_empty(self):
        # We need to do a copy.deepcopy here since
        # dict(self.AUTH_RESPONSE_BODY) or self.AUTH_RESPONSE_BODY.copy() will
        # only do a shadowcopy and sc_empty['token']['catalog'] will still be a
        # reference to self.AUTH_RESPONSE_BODY so setting it to empty will fail
        # the other tests that needs a service catalog.
        sc_empty = copy.deepcopy(self.AUTH_RESPONSE_BODY)
        sc_empty['token']['catalog'] = []
        auth_ref = access.AccessInfo.factory(self.RESPONSE, sc_empty)
        self.assertRaises(exceptions.EmptyCatalog,
                          auth_ref.service_catalog.url_for,
                          service_type='image',
                          endpoint_type='internalURL')