# Copyright 2013: Mirantis Inc.
# All Rights Reserved.
#
#    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 keystoneclient import exceptions as keystone_exceptions
import mock
from oslo_config import cfg

from rally import consts
from rally import exceptions
from rally import objects
from rally import osclients
from tests.unit import fakes
from tests.unit import test


class OSClientsTestCase(test.TestCase):

    def setUp(self):
        super(OSClientsTestCase, self).setUp()
        self.endpoint = objects.Endpoint("http://auth_url", "use", "pass",
                                         "tenant")
        self.clients = osclients.Clients(self.endpoint)

        self.fake_keystone = fakes.FakeKeystoneClient()
        self.fake_keystone.auth_token = mock.MagicMock()
        self.service_catalog = self.fake_keystone.service_catalog
        self.service_catalog.url_for = mock.MagicMock()

        keystone_patcher = mock.patch("rally.osclients.create_keystone_client")
        self.mock_create_keystone_client = keystone_patcher.start()
        self.addCleanup(keystone_patcher.stop)
        self.mock_create_keystone_client.return_value = self.fake_keystone

    def tearDown(self):
        super(OSClientsTestCase, self).tearDown()

    def test_keystone(self):
        self.assertNotIn("keystone", self.clients.cache)
        client = self.clients.keystone()
        self.assertEqual(client, self.fake_keystone)
        endpoint = {"timeout": cfg.CONF.openstack_client_http_timeout,
                    "insecure": False, "cacert": None}
        kwargs = self.endpoint.to_dict()
        kwargs.update(endpoint.items())
        self.mock_create_keystone_client.assert_called_once_with(kwargs)
        self.assertEqual(self.clients.cache["keystone"], self.fake_keystone)

    @mock.patch("rally.osclients.Clients.keystone")
    def test_verified_keystone_user_not_admin(self, mock_keystone):
        mock_keystone.return_value = fakes.FakeKeystoneClient()
        mock_keystone.return_value.auth_ref.role_names = ["notadmin"]
        self.assertRaises(exceptions.InvalidAdminException,
                          self.clients.verified_keystone)

    @mock.patch("rally.osclients.Clients.keystone")
    def test_verified_keystone_unauthorized(self, mock_keystone):
        mock_keystone.return_value = fakes.FakeKeystoneClient()
        mock_keystone.side_effect = keystone_exceptions.Unauthorized
        self.assertRaises(exceptions.InvalidEndpointsException,
                          self.clients.verified_keystone)

    @mock.patch("rally.osclients.Clients.keystone")
    def test_verified_keystone_unreachable(self, mock_keystone):
        mock_keystone.return_value = fakes.FakeKeystoneClient()
        mock_keystone.side_effect = keystone_exceptions.AuthorizationFailure
        self.assertRaises(exceptions.HostUnreachableException,
                          self.clients.verified_keystone)

    def test_nova(self):
        with mock.patch("rally.osclients.nova") as mock_nova:
            fake_nova = fakes.FakeNovaClient()
            mock_nova.Client = mock.MagicMock(return_value=fake_nova)
            self.assertNotIn("nova", self.clients.cache)
            client = self.clients.nova()
            self.assertEqual(client, fake_nova)
            self.service_catalog.url_for.assert_called_once_with(
                service_type="compute",
                endpoint_type=consts.EndpointType.PUBLIC,
                region_name=self.endpoint.region_name)
            mock_nova.Client.assert_called_once_with(
                "2",
                auth_token=self.fake_keystone.auth_token,
                http_log_debug=False,
                timeout=cfg.CONF.openstack_client_http_timeout,
                insecure=False, cacert=None)
            client.set_management_url.assert_called_once_with(
                self.service_catalog.url_for.return_value)
            self.assertEqual(self.clients.cache["nova"], fake_nova)

    @mock.patch("rally.osclients.neutron")
    def test_neutron(self, mock_neutron):
        fake_neutron = fakes.FakeNeutronClient()
        mock_neutron.Client = mock.MagicMock(return_value=fake_neutron)
        self.assertNotIn("neutron", self.clients.cache)
        client = self.clients.neutron()
        self.assertEqual(client, fake_neutron)
        kw = {
            "token": self.fake_keystone.auth_token,
            "endpoint_url": self.service_catalog.url_for.return_value,
            "timeout": cfg.CONF.openstack_client_http_timeout,
            "insecure": cfg.CONF.https_insecure,
            "ca_cert": cfg.CONF.https_cacert
        }
        self.service_catalog.url_for.assert_called_once_with(
            service_type="network", endpoint_type=consts.EndpointType.PUBLIC,
            region_name=self.endpoint.region_name)
        mock_neutron.Client.assert_called_once_with("2.0", **kw)
        self.assertEqual(self.clients.cache["neutron"], fake_neutron)

    def test_glance(self):
        with mock.patch("rally.osclients.glance") as mock_glance:
            fake_glance = fakes.FakeGlanceClient()
            mock_glance.Client = mock.MagicMock(return_value=fake_glance)
            self.assertNotIn("glance", self.clients.cache)
            client = self.clients.glance()
            self.assertEqual(client, fake_glance)
            kw = {"endpoint": self.service_catalog.url_for.return_value,
                  "token": self.fake_keystone.auth_token,
                  "timeout": cfg.CONF.openstack_client_http_timeout,
                  "insecure": False, "cacert": None}
            self.service_catalog.url_for.assert_called_once_with(
                service_type="image",
                endpoint_type=consts.EndpointType.PUBLIC,
                region_name=self.endpoint.region_name)
            mock_glance.Client.assert_called_once_with("1", **kw)
            self.assertEqual(self.clients.cache["glance"], fake_glance)

    def test_cinder(self):
        with mock.patch("rally.osclients.cinder") as mock_cinder:
            fake_cinder = fakes.FakeCinderClient()
            fake_cinder.client = mock.MagicMock()
            mock_cinder.Client = mock.MagicMock(return_value=fake_cinder)
            self.assertNotIn("cinder", self.clients.cache)
            client = self.clients.cinder()
            self.assertEqual(client, fake_cinder)
            self.service_catalog.url_for.assert_called_once_with(
                service_type="volume",
                endpoint_type=consts.EndpointType.PUBLIC,
                region_name=self.endpoint.region_name)
            mock_cinder.Client.assert_called_once_with(
                "1", None, None, http_log_debug=False,
                timeout=cfg.CONF.openstack_client_http_timeout,
                insecure=False, cacert=None)
            self.assertEqual(fake_cinder.client.management_url,
                             self.service_catalog.url_for.return_value)
            self.assertEqual(fake_cinder.client.auth_token,
                             self.fake_keystone.auth_token)
            self.assertEqual(self.clients.cache["cinder"], fake_cinder)

    def test_ceilometer(self):
        with mock.patch("rally.osclients.ceilometer") as mock_ceilometer:
            fake_ceilometer = fakes.FakeCeilometerClient()
            mock_ceilometer.Client = mock.MagicMock(
                return_value=fake_ceilometer)
            self.assertNotIn("ceilometer", self.clients.cache)
            client = self.clients.ceilometer()
            self.assertEqual(client, fake_ceilometer)
            self.service_catalog.url_for.assert_called_once_with(
                service_type="metering",
                endpoint_type=consts.EndpointType.PUBLIC,
                region_name=self.endpoint.region_name)
            kw = {"endpoint": self.service_catalog.url_for.return_value,
                  "token": self.fake_keystone.auth_token,
                  "timeout": cfg.CONF.openstack_client_http_timeout,
                  "insecure": False, "cacert": None}
            mock_ceilometer.Client.assert_called_once_with("2", **kw)
            self.assertEqual(self.clients.cache["ceilometer"],
                             fake_ceilometer)

    @mock.patch("rally.osclients.ironic")
    def test_ironic(self, mock_ironic):
        fake_ironic = fakes.FakeIronicClient()
        mock_ironic.get_client = mock.MagicMock(return_value=fake_ironic)
        self.assertNotIn("ironic", self.clients.cache)
        client = self.clients.ironic()
        self.assertEqual(client, fake_ironic)
        self.service_catalog.url_for.assert_called_once_with(
            service_type="baremetal",
            endpoint_type=consts.EndpointType.PUBLIC,
            region_name=self.endpoint.region_name)
        kw = {
            "os_auth_token": self.fake_keystone.auth_token,
            "ironic_url": self.service_catalog.url_for.return_value,
            "timeout": cfg.CONF.openstack_client_http_timeout,
            "insecure": cfg.CONF.https_insecure,
            "cacert": cfg.CONF.https_cacert
        }
        mock_ironic.get_client.assert_called_once_with("1.0", **kw)
        self.assertEqual(self.clients.cache["ironic"], fake_ironic)

    @mock.patch("rally.osclients.sahara")
    def test_sahara(self, mock_sahara):
        fake_sahara = fakes.FakeSaharaClient()
        mock_sahara.Client = mock.MagicMock(return_value=fake_sahara)
        self.assertNotIn("sahara", self.clients.cache)
        client = self.clients.sahara()
        self.assertEqual(client, fake_sahara)
        kw = {
            "username": self.endpoint.username,
            "api_key": self.endpoint.password,
            "project_name": self.endpoint.tenant_name,
            "auth_url": self.endpoint.auth_url
        }
        mock_sahara.Client.assert_called_once_with("1.1", **kw)
        self.assertEqual(self.clients.cache["sahara"], fake_sahara)

    @mock.patch("rally.osclients.zaqar")
    def test_zaqar(self, mock_zaqar):
        fake_zaqar = fakes.FakeZaqarClient()
        mock_zaqar.Client = mock.MagicMock(return_value=fake_zaqar)
        self.assertNotIn("zaqar", self.clients.cache)
        client = self.clients.zaqar()
        self.assertEqual(client, fake_zaqar)
        self.service_catalog.url_for.assert_called_once_with(
            service_type="messaging",
            endpoint_type=consts.EndpointType.PUBLIC,
            region_name=self.endpoint.region_name)
        fake_zaqar_url = self.service_catalog.url_for.return_value
        conf = {"auth_opts": {"backend": "keystone", "options": {
            "os_username": self.endpoint.username,
            "os_password": self.endpoint.password,
            "os_project_name": self.endpoint.tenant_name,
            "os_project_id": self.fake_keystone.auth_tenant_id,
            "os_auth_url": self.endpoint.auth_url,
            "insecure": cfg.CONF.https_insecure,
        }}}
        mock_zaqar.Client.assert_called_once_with(url=fake_zaqar_url,
                                                  version=1.1,
                                                  conf=conf)
        self.assertEqual(self.clients.cache["zaqar"], fake_zaqar)

    @mock.patch("rally.osclients.trove")
    def test_trove(self, mock_trove):
        fake_trove = fakes.FakeTroveClient()
        mock_trove.Client = mock.MagicMock(return_value=fake_trove)
        self.assertNotIn("trove", self.clients.cache)
        client = self.clients.trove()
        self.assertEqual(client, fake_trove)
        kw = {
            "username": self.endpoint.username,
            "api_key": self.endpoint.password,
            "project_id": self.endpoint.tenant_name,
            "auth_url": self.endpoint.auth_url,
            "region_name": self.endpoint.region_name,
            "timeout": cfg.CONF.openstack_client_http_timeout,
            "insecure": cfg.CONF.https_insecure,
            "cacert": cfg.CONF.https_cacert
        }
        mock_trove.Client.assert_called_once_with("1.0", **kw)
        self.assertEqual(self.clients.cache["trove"], fake_trove)

    def test_mistral(self):
        fake_mistral = fakes.FakeMistralClient()
        mock_mistral = mock.Mock()
        mock_mistral.client.client.return_value = fake_mistral

        self.assertNotIn("mistral", self.clients.cache)
        with mock.patch.dict(
                "sys.modules", {"mistralclient": mock_mistral,
                                "mistralclient.api": mock_mistral}):
            client = self.clients.mistral()
            self.assertEqual(fake_mistral, client)
            self.service_catalog.url_for.assert_called_once_with(
                service_type="workflowv2",
                endpoint_type=consts.EndpointType.PUBLIC,
                region_name=self.endpoint.region_name
            )
            fake_mistral_url = self.service_catalog.url_for.return_value
            mock_mistral.client.client.assert_called_once_with(
                 mistral_url=fake_mistral_url,
                 service_type="workflowv2",
                 auth_token=self.fake_keystone.auth_token
            )
            self.assertEqual(fake_mistral, self.clients.cache["mistral"])

    @mock.patch("rally.osclients.Clients.keystone")
    def test_services(self, mock_keystone):
        available_services = {consts.ServiceType.IDENTITY: {},
                              consts.ServiceType.COMPUTE: {},
                              "unknown_service": {}
                              }
        mock_keystone.return_value = mock.Mock(service_catalog=mock.Mock(
                get_endpoints=lambda: available_services))
        clients = osclients.Clients({})

        self.assertEqual(
            clients.services(), {
                consts.ServiceType.IDENTITY: consts.Service.KEYSTONE,
                consts.ServiceType.COMPUTE: consts.Service.NOVA})