# 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 unittest import mock
import uuid

import testtools

from openstack.cloud import exc
from openstack import connection
from openstack import exceptions
from openstack.tests import fakes
from openstack.tests.unit import base
from openstack import utils


RANGE_DATA = [
    dict(id=1, key1=1, key2=5),
    dict(id=2, key1=1, key2=20),
    dict(id=3, key1=2, key2=10),
    dict(id=4, key1=2, key2=30),
    dict(id=5, key1=3, key2=40),
    dict(id=6, key1=3, key2=40),
]


class TestShade(base.TestCase):

    def setUp(self):
        # This set of tests are not testing neutron, they're testing
        # rebuilding servers, but we do several network calls in service
        # of a NORMAL rebuild to find the default_network. Putting
        # in all of the neutron mocks for that will make the tests harder
        # to read. SO - we're going mock neutron into the off position
        # and then turn it back on in the few tests that specifically do.
        # Maybe we should reorg these into two classes - one with neutron
        # mocked out - and one with it not mocked out
        super(TestShade, self).setUp()
        self.has_neutron = False

        def fake_has_service(*args, **kwargs):
            return self.has_neutron

        self.cloud.has_service = fake_has_service

    def test_openstack_cloud(self):
        self.assertIsInstance(self.cloud, connection.Connection)

    def test_endpoint_for(self):
        dns_override = 'https://override.dns.example.com'
        self.cloud.config.config['dns_endpoint_override'] = dns_override
        self.assertEqual(
            'https://compute.example.com/v2.1/',
            self.cloud.endpoint_for('compute'))
        self.assertEqual(
            'https://internal.compute.example.com/v2.1/',
            self.cloud.endpoint_for('compute', interface='internal'))
        self.assertIsNone(
            self.cloud.endpoint_for('compute', region_name='unknown-region'))
        self.assertEqual(
            dns_override,
            self.cloud.endpoint_for('dns'))

    def test_connect_as(self):
        # Do initial auth/catalog steps
        # This should authenticate a second time, but should not
        # need a second identity discovery
        project_name = 'test_project'
        self.register_uris([
            self.get_keystone_v3_token(project_name=project_name),
            self.get_nova_discovery_mock_dict(),
            dict(
                method='GET',
                uri=self.get_mock_url(
                    'compute', 'public', append=['servers', 'detail']),
                json={'servers': []},
            ),
        ])

        c2 = self.cloud.connect_as(project_name=project_name)
        self.assertEqual(c2.list_servers(), [])
        self.assert_calls()

    def test_connect_as_context(self):
        # Do initial auth/catalog steps
        # This should authenticate a second time, but should not
        # need a second identity discovery
        project_name = 'test_project'
        self.register_uris([
            self.get_keystone_v3_token(project_name=project_name),
            self.get_nova_discovery_mock_dict(),
            dict(
                method='GET',
                uri=self.get_mock_url(
                    'compute', 'public', append=['servers', 'detail']),
                json={'servers': []},
            ),
        ])

        with self.cloud.connect_as(project_name=project_name) as c2:
            self.assertEqual(c2.list_servers(), [])
        self.assert_calls()

    @mock.patch.object(connection.Connection, 'search_images')
    def test_get_images(self, mock_search):
        image1 = dict(id='123', name='mickey')
        mock_search.return_value = [image1]
        r = self.cloud.get_image('mickey')
        self.assertIsNotNone(r)
        self.assertDictEqual(image1, r)

    @mock.patch.object(connection.Connection, 'search_images')
    def test_get_image_not_found(self, mock_search):
        mock_search.return_value = []
        r = self.cloud.get_image('doesNotExist')
        self.assertIsNone(r)

    def test_global_request_id(self):
        request_id = uuid.uuid4().hex
        self.register_uris([
            self.get_nova_discovery_mock_dict(),
            dict(
                method='GET',
                uri=self.get_mock_url(
                    'compute', 'public', append=['servers', 'detail']),
                json={'servers': []},
                validate=dict(
                    headers={'X-Openstack-Request-Id': request_id}),
            ),
        ])

        cloud2 = self.cloud.global_request(request_id)
        self.assertEqual([], cloud2.list_servers())

        self.assert_calls()

    def test_global_request_id_context(self):
        request_id = uuid.uuid4().hex
        self.register_uris([
            self.get_nova_discovery_mock_dict(),
            dict(
                method='GET',
                uri=self.get_mock_url(
                    'compute', 'public', append=['servers', 'detail']),
                json={'servers': []},
                validate=dict(
                    headers={'X-Openstack-Request-Id': request_id}),
            ),
        ])

        with self.cloud.global_request(request_id) as c2:
            self.assertEqual([], c2.list_servers())

        self.assert_calls()

    def test_get_server(self):
        server1 = fakes.make_fake_server('123', 'mickey')
        server2 = fakes.make_fake_server('345', 'mouse')

        self.register_uris([
            self.get_nova_discovery_mock_dict(),
            dict(method='GET',
                 uri=self.get_mock_url(
                     'compute', 'public', append=['servers', 'detail']),
                 json={'servers': [server1, server2]}),
        ])

        r = self.cloud.get_server('mickey')
        self.assertIsNotNone(r)
        self.assertEqual(server1['name'], r['name'])

        self.assert_calls()

    def test_get_server_not_found(self):
        self.register_uris([
            self.get_nova_discovery_mock_dict(),
            dict(method='GET',
                 uri=self.get_mock_url(
                     'compute', 'public', append=['servers', 'detail']),
                 json={'servers': []}),
        ])

        r = self.cloud.get_server('doesNotExist')
        self.assertIsNone(r)

        self.assert_calls()

    def test_list_servers_exception(self):
        self.register_uris([
            self.get_nova_discovery_mock_dict(),
            dict(method='GET',
                 uri=self.get_mock_url(
                     'compute', 'public', append=['servers', 'detail']),
                 status_code=400)
        ])

        self.assertRaises(exc.OpenStackCloudException,
                          self.cloud.list_servers)

        self.assert_calls()

    def test_neutron_not_found(self):
        self.use_nothing()
        self.cloud.has_service = mock.Mock(return_value=False)
        self.assertEqual([], self.cloud.list_networks())
        self.assert_calls()

    def test_list_servers(self):
        server_id = str(uuid.uuid4())
        server_name = self.getUniqueString('name')
        fake_server = fakes.make_fake_server(server_id, server_name)
        self.register_uris([
            self.get_nova_discovery_mock_dict(),
            dict(method='GET',
                 uri=self.get_mock_url(
                     'compute', 'public', append=['servers', 'detail']),
                 json={'servers': [fake_server]}),
        ])

        r = self.cloud.list_servers()

        self.assertEqual(1, len(r))
        self.assertEqual(server_name, r[0]['name'])

        self.assert_calls()

    def test_list_server_private_ip(self):
        self.has_neutron = True
        fake_server = {
            "OS-EXT-STS:task_state": None,
            "addresses": {
                "private": [
                    {
                        "OS-EXT-IPS-MAC:mac_addr": "fa:16:3e:b4:a3:07",
                        "version": 4,
                        "addr": "10.4.0.13",
                        "OS-EXT-IPS:type": "fixed"
                    }, {
                        "OS-EXT-IPS-MAC:mac_addr": "fa:16:3e:b4:a3:07",
                        "version": 4,
                        "addr": "89.40.216.229",
                        "OS-EXT-IPS:type": "floating"
                    }]},
            "links": [
                {
                    "href": "http://example.com/images/95e4c4",
                    "rel": "self"
                }, {
                    "href": "http://example.com/images/95e4c4",
                    "rel": "bookmark"
                }
            ],
            "image": {
                "id": "95e4c449-8abf-486e-97d9-dc3f82417d2d",
                "links": [
                    {
                        "href": "http://example.com/images/95e4c4",
                        "rel": "bookmark"
                    }
                ]
            },
            "OS-EXT-STS:vm_state": "active",
            "OS-SRV-USG:launched_at": "2018-03-01T02:44:50.000000",
            "flavor": {
                "id": "3bd99062-2fe8-4eac-93f0-9200cc0f97ae",
                "links": [
                    {
                        "href": "http://example.com/flavors/95e4c4",
                        "rel": "bookmark"
                    }
                ]
            },
            "id": "97fe35e9-756a-41a2-960a-1d057d2c9ee4",
            "security_groups": [{"name": "default"}],
            "user_id": "c17534835f8f42bf98fc367e0bf35e09",
            "OS-DCF:diskConfig": "MANUAL",
            "accessIPv4": "",
            "accessIPv6": "",
            "progress": 0,
            "OS-EXT-STS:power_state": 1,
            "OS-EXT-AZ:availability_zone": "nova",
            "metadata": {},
            "status": "ACTIVE",
            "updated": "2018-03-01T02:44:51Z",
            "hostId": "",
            "OS-SRV-USG:terminated_at": None,
            "key_name": None,
            "name": "mttest",
            "created": "2018-03-01T02:44:46Z",
            "tenant_id": "65222a4d09ea4c68934fa1028c77f394",
            "os-extended-volumes:volumes_attached": [],
            "config_drive": ""
        }
        fake_networks = {"networks": [
            {
                "status": "ACTIVE",
                "router:external": True,
                "availability_zone_hints": [],
                "availability_zones": ["nova"],
                "description": None,
                "subnets": [
                    "df3e17fa-a4b2-47ae-9015-bc93eb076ba2",
                    "6b0c3dc9-b0b8-4d87-976a-7f2ebf13e7ec",
                    "fc541f48-fc7f-48c0-a063-18de6ee7bdd7"
                ],
                "shared": False,
                "tenant_id": "a564613210ee43708b8a7fc6274ebd63",
                "tags": [],
                "ipv6_address_scope": "9f03124f-89af-483a-b6fd-10f08079db4d",
                "mtu": 1550,
                "is_default": False,
                "admin_state_up": True,
                "revision_number": 0,
                "ipv4_address_scope": None,
                "port_security_enabled": True,
                "project_id": "a564613210ee43708b8a7fc6274ebd63",
                "id": "0232c17f-2096-49bc-b205-d3dcd9a30ebf",
                "name": "ext-net"
            }, {
                "status": "ACTIVE",
                "router:external": False,
                "availability_zone_hints": [],
                "availability_zones": ["nova"],
                "description": "",
                "subnets": ["f0ad1df5-53ee-473f-b86b-3604ea5591e9"],
                "shared": False,
                "tenant_id": "65222a4d09ea4c68934fa1028c77f394",
                "created_at": "2016-10-22T13:46:26Z",
                "tags": [],
                "ipv6_address_scope": None,
                "updated_at": "2016-10-22T13:46:26Z",
                "admin_state_up": True,
                "mtu": 1500,
                "revision_number": 0,
                "ipv4_address_scope": None,
                "port_security_enabled": True,
                "project_id": "65222a4d09ea4c68934fa1028c77f394",
                "id": "2c9adcb5-c123-4c5a-a2ba-1ad4c4e1481f",
                "name": "private"
            }]}
        fake_subnets = {
            "subnets": [
                {
                    "service_types": [],
                    "description": "",
                    "enable_dhcp": True,
                    "tags": [],
                    "network_id": "827c6bb6-492f-4168-9577-f3a131eb29e8",
                    "tenant_id": "65222a4d09ea4c68934fa1028c77f394",
                    "created_at": "2017-06-12T13:23:57Z",
                    "dns_nameservers": [],
                    "updated_at": "2017-06-12T13:23:57Z",
                    "gateway_ip": "10.24.4.1",
                    "ipv6_ra_mode": None,
                    "allocation_pools": [
                        {
                            "start": "10.24.4.2",
                            "end": "10.24.4.254"
                        }],
                    "host_routes": [],
                    "revision_number": 0,
                    "ip_version": 4,
                    "ipv6_address_mode": None,
                    "cidr": "10.24.4.0/24",
                    "project_id": "65222a4d09ea4c68934fa1028c77f394",
                    "id": "3f0642d9-4644-4dff-af25-bcf64f739698",
                    "subnetpool_id": None,
                    "name": "foo_subnet"
                }, {
                    "service_types": [],
                    "description": "",
                    "enable_dhcp": True,
                    "tags": [],
                    "network_id": "2c9adcb5-c123-4c5a-a2ba-1ad4c4e1481f",
                    "tenant_id": "65222a4d09ea4c68934fa1028c77f394",
                    "created_at": "2016-10-22T13:46:26Z",
                    "dns_nameservers": ["89.36.90.101", "89.36.90.102"],
                    "updated_at": "2016-10-22T13:46:26Z",
                    "gateway_ip": "10.4.0.1",
                    "ipv6_ra_mode": None,
                    "allocation_pools": [
                        {
                            "start": "10.4.0.2",
                            "end": "10.4.0.200"
                        }],
                    "host_routes": [],
                    "revision_number": 0,
                    "ip_version": 4,
                    "ipv6_address_mode": None,
                    "cidr": "10.4.0.0/24",
                    "project_id": "65222a4d09ea4c68934fa1028c77f394",
                    "id": "f0ad1df5-53ee-473f-b86b-3604ea5591e9",
                    "subnetpool_id": None,
                    "name": "private-subnet-ipv4"
                }]}
        self.register_uris([
            self.get_nova_discovery_mock_dict(),
            dict(method='GET',
                 uri=self.get_mock_url(
                     'compute', 'public', append=['servers', 'detail']),
                 json={'servers': [fake_server]}),
            dict(method='GET',
                 uri=self.get_mock_url(
                     'network', 'public', append=['v2.0', 'networks']),
                 json=fake_networks),
            dict(method='GET',
                 uri=self.get_mock_url(
                     'network', 'public', append=['v2.0', 'subnets']),
                 json=fake_subnets)
        ])

        r = self.cloud.get_server('97fe35e9-756a-41a2-960a-1d057d2c9ee4')

        self.assertEqual('10.4.0.13', r['private_v4'])

        self.assert_calls()

    def test_list_servers_all_projects(self):
        '''This test verifies that when list_servers is called with
        `all_projects=True` that it passes `all_tenants=True` to nova.'''
        self.register_uris([
            self.get_nova_discovery_mock_dict(),
            dict(method='GET',
                 uri=self.get_mock_url(
                     'compute', 'public', append=['servers', 'detail'],
                     qs_elements=['all_tenants=True']),
                 complete_qs=True,
                 json={'servers': []}),
        ])

        self.cloud.list_servers(all_projects=True)

        self.assert_calls()

    def test_list_servers_filters(self):
        '''This test verifies that when list_servers is called with
        `filters` dict that it passes it to nova.'''
        self.register_uris([
            self.get_nova_discovery_mock_dict(),
            dict(method='GET',
                 uri=self.get_mock_url(
                     'compute', 'public', append=['servers', 'detail'],
                     qs_elements=[
                         'deleted=True',
                         'changes-since=2014-12-03T00:00:00Z'
                     ]),
                 complete_qs=True,
                 json={'servers': []}),
        ])

        self.cloud.list_servers(filters={
            'deleted': True,
            'changes-since': '2014-12-03T00:00:00Z'
        })

        self.assert_calls()

    def test_iterate_timeout_bad_wait(self):
        with testtools.ExpectedException(
                exc.OpenStackCloudException,
                "Wait value must be an int or float value."):
            for count in utils.iterate_timeout(
                    1, "test_iterate_timeout_bad_wait", wait="timeishard"):
                pass

    @mock.patch('time.sleep')
    def test_iterate_timeout_str_wait(self, mock_sleep):
        iter = utils.iterate_timeout(
            10, "test_iterate_timeout_str_wait", wait="1.6")
        next(iter)
        next(iter)
        mock_sleep.assert_called_with(1.6)

    @mock.patch('time.sleep')
    def test_iterate_timeout_int_wait(self, mock_sleep):
        iter = utils.iterate_timeout(
            10, "test_iterate_timeout_int_wait", wait=1)
        next(iter)
        next(iter)
        mock_sleep.assert_called_with(1.0)

    @mock.patch('time.sleep')
    def test_iterate_timeout_timeout(self, mock_sleep):
        message = "timeout test"
        with testtools.ExpectedException(
                exc.OpenStackCloudTimeout,
                message):
            for count in utils.iterate_timeout(0.1, message, wait=1):
                pass
        mock_sleep.assert_called_with(1.0)

    def test__nova_extensions(self):
        body = [
            {
                "updated": "2014-12-03T00:00:00Z",
                "name": "Multinic",
                "links": [],
                "namespace": "http://openstack.org/compute/ext/fake_xml",
                "alias": "NMN",
                "description": "Multiple network support."
            },
            {
                "updated": "2014-12-03T00:00:00Z",
                "name": "DiskConfig",
                "links": [],
                "namespace": "http://openstack.org/compute/ext/fake_xml",
                "alias": "OS-DCF",
                "description": "Disk Management Extension."
            },
        ]
        self.register_uris([
            dict(method='GET',
                 uri='{endpoint}/extensions'.format(
                     endpoint=fakes.COMPUTE_ENDPOINT),
                 json=dict(extensions=body))
        ])
        extensions = self.cloud._nova_extensions()
        self.assertEqual(set(['NMN', 'OS-DCF']), extensions)

        self.assert_calls()

    def test__nova_extensions_fails(self):
        self.register_uris([
            dict(method='GET',
                 uri='{endpoint}/extensions'.format(
                     endpoint=fakes.COMPUTE_ENDPOINT),
                 status_code=404),
        ])
        with testtools.ExpectedException(
            exc.OpenStackCloudURINotFound,
            "Error fetching extension list for nova"
        ):
            self.cloud._nova_extensions()

        self.assert_calls()

    def test__has_nova_extension(self):
        body = [
            {
                "updated": "2014-12-03T00:00:00Z",
                "name": "Multinic",
                "links": [],
                "namespace": "http://openstack.org/compute/ext/fake_xml",
                "alias": "NMN",
                "description": "Multiple network support."
            },
            {
                "updated": "2014-12-03T00:00:00Z",
                "name": "DiskConfig",
                "links": [],
                "namespace": "http://openstack.org/compute/ext/fake_xml",
                "alias": "OS-DCF",
                "description": "Disk Management Extension."
            },
        ]
        self.register_uris([
            dict(method='GET',
                 uri='{endpoint}/extensions'.format(
                     endpoint=fakes.COMPUTE_ENDPOINT),
                 json=dict(extensions=body))
        ])
        self.assertTrue(self.cloud._has_nova_extension('NMN'))

        self.assert_calls()

    def test__has_nova_extension_missing(self):
        body = [
            {
                "updated": "2014-12-03T00:00:00Z",
                "name": "Multinic",
                "links": [],
                "namespace": "http://openstack.org/compute/ext/fake_xml",
                "alias": "NMN",
                "description": "Multiple network support."
            },
            {
                "updated": "2014-12-03T00:00:00Z",
                "name": "DiskConfig",
                "links": [],
                "namespace": "http://openstack.org/compute/ext/fake_xml",
                "alias": "OS-DCF",
                "description": "Disk Management Extension."
            },
        ]
        self.register_uris([
            dict(method='GET',
                 uri='{endpoint}/extensions'.format(
                     endpoint=fakes.COMPUTE_ENDPOINT),
                 json=dict(extensions=body))
        ])
        self.assertFalse(self.cloud._has_nova_extension('invalid'))

        self.assert_calls()

    def test__neutron_extensions(self):
        body = [
            {
                "updated": "2014-06-1T10:00:00-00:00",
                "name": "Distributed Virtual Router",
                "links": [],
                "alias": "dvr",
                "description":
                    "Enables configuration of Distributed Virtual Routers."
            },
            {
                "updated": "2013-07-23T10:00:00-00:00",
                "name": "Allowed Address Pairs",
                "links": [],
                "alias": "allowed-address-pairs",
                "description": "Provides allowed address pairs"
            },
        ]
        self.register_uris([
            dict(method='GET',
                 uri=self.get_mock_url(
                     'network', 'public', append=['v2.0', 'extensions']),
                 json=dict(extensions=body))
        ])
        extensions = self.cloud._neutron_extensions()
        self.assertEqual(set(['dvr', 'allowed-address-pairs']), extensions)

        self.assert_calls()

    def test__neutron_extensions_fails(self):
        self.register_uris([
            dict(method='GET',
                 uri=self.get_mock_url(
                     'network', 'public', append=['v2.0', 'extensions']),
                 status_code=404)
        ])
        with testtools.ExpectedException(
            exceptions.ResourceNotFound
        ):
            self.cloud._neutron_extensions()

        self.assert_calls()

    def test__has_neutron_extension(self):
        body = [
            {
                "updated": "2014-06-1T10:00:00-00:00",
                "name": "Distributed Virtual Router",
                "links": [],
                "alias": "dvr",
                "description":
                    "Enables configuration of Distributed Virtual Routers."
            },
            {
                "updated": "2013-07-23T10:00:00-00:00",
                "name": "Allowed Address Pairs",
                "links": [],
                "alias": "allowed-address-pairs",
                "description": "Provides allowed address pairs"
            },
        ]
        self.register_uris([
            dict(method='GET',
                 uri=self.get_mock_url(
                     'network', 'public', append=['v2.0', 'extensions']),
                 json=dict(extensions=body))
        ])
        self.assertTrue(self.cloud._has_neutron_extension('dvr'))
        self.assert_calls()

    def test__has_neutron_extension_missing(self):
        body = [
            {
                "updated": "2014-06-1T10:00:00-00:00",
                "name": "Distributed Virtual Router",
                "links": [],
                "alias": "dvr",
                "description":
                    "Enables configuration of Distributed Virtual Routers."
            },
            {
                "updated": "2013-07-23T10:00:00-00:00",
                "name": "Allowed Address Pairs",
                "links": [],
                "alias": "allowed-address-pairs",
                "description": "Provides allowed address pairs"
            },
        ]
        self.register_uris([
            dict(method='GET',
                 uri=self.get_mock_url(
                     'network', 'public', append=['v2.0', 'extensions']),
                 json=dict(extensions=body))
        ])
        self.assertFalse(self.cloud._has_neutron_extension('invalid'))
        self.assert_calls()

    def test_range_search(self):
        filters = {"key1": "min", "key2": "20"}
        retval = self.cloud.range_search(RANGE_DATA, filters)
        self.assertIsInstance(retval, list)
        self.assertEqual(1, len(retval))
        self.assertEqual([RANGE_DATA[1]], retval)

    def test_range_search_2(self):
        filters = {"key1": "<=2", "key2": ">10"}
        retval = self.cloud.range_search(RANGE_DATA, filters)
        self.assertIsInstance(retval, list)
        self.assertEqual(2, len(retval))
        self.assertEqual([RANGE_DATA[1], RANGE_DATA[3]], retval)

    def test_range_search_3(self):
        filters = {"key1": "2", "key2": "min"}
        retval = self.cloud.range_search(RANGE_DATA, filters)
        self.assertIsInstance(retval, list)
        self.assertEqual(0, len(retval))

    def test_range_search_4(self):
        filters = {"key1": "max", "key2": "min"}
        retval = self.cloud.range_search(RANGE_DATA, filters)
        self.assertIsInstance(retval, list)
        self.assertEqual(0, len(retval))

    def test_range_search_5(self):
        filters = {"key1": "min", "key2": "min"}
        retval = self.cloud.range_search(RANGE_DATA, filters)
        self.assertIsInstance(retval, list)
        self.assertEqual(1, len(retval))
        self.assertEqual([RANGE_DATA[0]], retval)
