#    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 tempest.common import utils
from tempest.common import waiters
from tempest import config
from tempest.lib.common.utils import data_utils
from tempest.lib import decorators
from tempest.scenario import manager

CONF = config.CONF


class TestEncryptedCinderVolumes(manager.EncryptionScenarioTest,
                                 manager.ScenarioTest):

    @classmethod
    def skip_checks(cls):
        super(TestEncryptedCinderVolumes, cls).skip_checks()
        if not CONF.compute_feature_enabled.attach_encrypted_volume:
            raise cls.skipException('Encrypted volume attach is not supported')

    @classmethod
    def resource_setup(cls):
        super(TestEncryptedCinderVolumes, cls).resource_setup()

    @classmethod
    def resource_cleanup(cls):
        super(TestEncryptedCinderVolumes, cls).resource_cleanup()

    def launch_instance(self):
        image = self.image_create()
        keypair = self.create_keypair()

        return self.create_server(image_id=image, key_name=keypair['name'])

    def attach_detach_volume(self, server, volume):
        attached_volume = self.nova_volume_attach(server, volume)
        self.nova_volume_detach(server, attached_volume)

    @decorators.idempotent_id('5bb622ab-5060-48a8-8840-d589a548b7e4')
    @utils.services('volume')
    def test_attach_cloned_encrypted_volume(self):
        """Create clone from volume

        Create another encrypted volume from source_volumeid
        Boot an instance from volume and verify its up.
        """

        volume = self.create_encrypted_volume('luks', volume_type='luks')
        kwargs = {
            'display_name': data_utils.rand_name(self.__class__.__name__),
            'source_volid': volume['id'],
            'volume_type': volume['volume_type'],
            'size': volume['size']
        }
        volume_s = self.volumes_client.create_volume(**kwargs)['volume']
        self.addCleanup(self.volumes_client.wait_for_resource_deletion,
                        volume_s['id'])
        self.addCleanup(self.volumes_client.delete_volume, volume_s['id'])
        waiters.wait_for_volume_resource_status(
            self.volumes_client, volume_s['id'], 'available')
        volume_source = self.volumes_client.show_volume(
            volume_s['id'])['volume']

        server = self.launch_instance()
        self.attach_detach_volume(server, volume_source)