# Copyright (C) 2018 NTT DATA
# 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.
# import unittest

from openstack import connection
from openstack.tests.functional import base

HYPERVISORS = []


def hypervisors():
    global HYPERVISORS
    if HYPERVISORS:
        return True
    HYPERVISORS = connection.Connection.list_hypervisors(
        connection.from_config(cloud_name=base.TEST_CLOUD_NAME))
    return bool(HYPERVISORS)


class TestHost(base.BaseFunctionalTest):

    def setUp(self):
        super(TestHost, self).setUp()
        self.require_service('instance-ha')
        self.NAME = self.getUniqueString()

        if not hypervisors():
            self.skipTest("Skip TestHost as there are no hypervisors "
                          "configured in nova")

        # Create segment
        self.segment = self.conn.ha.create_segment(
            name=self.NAME, recovery_method='auto',
            service_type='COMPUTE')

        # Create valid host
        self.NAME = HYPERVISORS[0].name
        self.host = self.conn.ha.create_host(
            segment_id=self.segment.uuid, name=self.NAME, type='COMPUTE',
            control_attributes='SSH')

        # Delete host
        self.addCleanup(self.conn.ha.delete_host, self.segment.uuid,
                        self.host.uuid)
        # Delete segment
        self.addCleanup(self.conn.ha.delete_segment, self.segment.uuid)

    def test_list(self):
        names = [o.name for o in self.conn.ha.hosts(
            self.segment.uuid, failover_segment_id=self.segment.uuid,
            type='COMPUTE')]
        self.assertIn(self.NAME, names)

    def test_update(self):
        updated_host = self.conn.ha.update_host(self.host['uuid'],
                                                segment_id=self.segment.uuid,
                                                on_maintenance='True')
        get_host = self.conn.ha.get_host(updated_host.uuid,
                                         updated_host.segment_id)
        self.assertEqual(True, get_host.on_maintenance)