# 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 six

from tempest.lib.common.utils import data_utils
from tempest.lib import decorators

from senlin_tempest_plugin.common import constants
from senlin_tempest_plugin.common import utils
from senlin_tempest_plugin.tests.integration import base


class TestNovaServerCluster(base.BaseSenlinIntegrationNonAdminTest):

    def setUp(self):
        super(TestNovaServerCluster, self).setUp()
        self.spec = utils.create_spec_from_config(
            network_name=data_utils.rand_name('tempest-created-network')
        )
        utils.prepare_and_cleanup_for_nova_server(
            self, '192.168.199.0/24', spec=self.spec
        )
        self.profile_id = utils.create_a_profile(self, self.spec)
        self.addCleanup(utils.delete_a_profile, self, self.profile_id)

    @decorators.attr(type=['integration'])
    @decorators.idempotent_id('c26eae1c-5c46-4a5f-be63-954d7229c8cc')
    def test_cluster_create_delete(self):
        # Create a cluster
        desired_capacity = 2
        min_size = 1
        max_size = 3
        metadata = {'k1': 'v1'}
        timeout = 600

        self.cluster_id = None

        try:
            self.cluster_id = utils.create_a_cluster(
                self, self.profile_id, desired_capacity, min_size, max_size,
                timeout, metadata)

            # Verify creation result
            cluster = utils.get_a_cluster(self, self.cluster_id)
            self.assertIsNotNone(cluster)
            self.assertEqual(desired_capacity, cluster['desired_capacity'])
            self.assertEqual(desired_capacity, len(cluster['nodes']))
            for nid in cluster['nodes']:
                node = utils.get_a_node(self, nid, show_details=True)
                self.assertEqual('ACTIVE', node['status'])
                self.assertEqual(self.cluster_id, node['cluster_id'])
                self.assertIsNotNone(node['details'])
                self.assertEqual('ACTIVE', node['details']['status'])
                self.assertEqual(self.spec['properties']['flavor'],
                                 node['details']['flavor'])
                self.assertEqual(self.spec['properties']['name'],
                                 node['details']['name'])
                metadata = {
                    'cluster_id': cluster['id'],
                    'cluster_node_id': node['id'],
                    'cluster_node_index': six.text_type(node['index'])
                }
                self.assertEqual(metadata, node['details']['metadata'])
        finally:
            # Delete cluster
            if self.cluster_id:
                utils.delete_a_cluster(self, self.cluster_id)

    @decorators.attr(type=['integration'])
    @decorators.idempotent_id('9ac7ed9d-7338-45fb-b749-f67ddeb6caa2')
    def test_lifecycle_hook_message(self):
        self.cluster_id = utils.create_a_cluster(self, self.profile_id,
                                                 min_size=0, max_size=5,
                                                 desired_capacity=2)
        self.addCleanup(utils.delete_a_cluster, self, self.cluster_id)

        # Create a deletion policy with hook
        spec = constants.spec_deletion_policy_with_hook
        policy_id = utils.create_a_policy(self, spec)
        del_policy = utils.get_a_policy(self, policy_id)
        self.addCleanup(utils.delete_a_policy, self, del_policy['id'])

        # Create zaqar queue
        queue_name = spec['properties']['hooks']['params']['queue']
        utils.create_queue(self, queue_name)
        self.addCleanup(utils.delete_queue, self, queue_name)

        # Attach deletion policy to cluster
        utils.cluster_attach_policy(self, self.cluster_id, del_policy['id'])
        self.addCleanup(utils.cluster_detach_policy, self, self.cluster_id,
                        del_policy['id'])

        # Scale out cluster
        utils.cluster_scale_out(self, self.cluster_id)

        # Verify scale out result
        cluster = utils.get_a_cluster(self, self.cluster_id)
        self.assertEqual('ACTIVE', cluster['status'])
        self.assertEqual(3, cluster['desired_capacity'])
        self.assertEqual(3, len(cluster['nodes']))

        # Scale in cluster
        _, action_id = utils.cluster_scale_in(self, self.cluster_id,
                                              expected_status='WAITING')

        # get action details of scale in action
        action = utils.get_a_action(self, action_id)
        self.assertTrue(1, len(action['depends_on']))

        # get lifecycle hook message from zaqar queue
        messages = utils.list_messages(self, queue_name)
        self.assertEqual(1, len(messages))
        lifecycle_hook_message = messages[0]['body']

        # get dependent action and check status
        dep_action_id = action['depends_on'][0]
        dep_action = utils.get_a_action(self, dep_action_id)
        self.assertEqual('WAITING_LIFECYCLE_COMPLETION', dep_action['status'])
        self.assertEqual(dep_action_id,
                         lifecycle_hook_message['lifecycle_action_token'])
        self.assertEqual(dep_action['target'],
                         lifecycle_hook_message['node_id'])

        # complete lifecycle
        utils.cluster_complete_lifecycle(self, self.cluster_id, dep_action_id)

        # verify cluster has been scaled in
        cluster = utils.get_a_cluster(self, self.cluster_id,
                                      expected_status='ACTIVE')
        self.assertEqual(2, cluster['desired_capacity'])
        self.assertEqual(2, len(cluster['nodes']))
