# Copyright 2016 Brocade Communications System, Inc.
#    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 oslo_config import cfg
from toscaparser import tosca_template
import yaml

from tacker.common import utils
from tacker.plugins.common import constants as evt_constants
from tacker.tests import constants
from tacker.tests.functional import base
from tacker.tosca import utils as toscautils

CONF = cfg.CONF


class VnfTestToscaMultipleVDU(base.BaseTackerTest):
    def test_create_delete_tosca_vnf_with_multiple_vdus(self):
        vnf_name = 'test_tosca_vnf_with_multiple_vdus'
        vnfd_file = 'sample-tosca-vnfd-multi-vdu.yaml'
        vnfd_instance, vnf_instance, tosca_dict = self.vnfd_and_vnf_create(
            vnfd_file, vnf_name)

        vnf_id = vnf_instance['vnf']['id']
        self.wait_until_vnf_active(vnf_id,
                                   constants.VNF_CIRROS_CREATE_TIMEOUT,
                                   constants.ACTIVE_SLEEP_TIME)
        self.assertEqual('ACTIVE',
                         self.client.show_vnf(vnf_id)['vnf']['status'])
        self.validate_vnf_instance(vnfd_instance, vnf_instance)

        self.verify_vnf_crud_events(
            vnf_id, evt_constants.RES_EVT_CREATE,
            evt_constants.PENDING_CREATE, cnt=2)
        self.verify_vnf_crud_events(
            vnf_id, evt_constants.RES_EVT_CREATE, evt_constants.ACTIVE)

        # Validate mgmt_ip_address with input yaml file
        mgmt_ip_address = self.client.show_vnf(vnf_id)['vnf'][
            'mgmt_ip_address']
        self.assertIsNotNone(mgmt_ip_address)
        mgmt_dict = yaml.safe_load(str(mgmt_ip_address))

        toscautils.updateimports(tosca_dict)

        tosca = tosca_template.ToscaTemplate(parsed_params={}, a_file=False,
                          yaml_dict_tpl=tosca_dict)

        vdus = toscautils.findvdus(tosca)

        self.assertEqual(len(vdus), len(mgmt_dict.keys()))
        for vdu in vdus:
            self.assertIsNotNone(mgmt_dict[vdu.name])
            self.assertEqual(True, utils.is_valid_ipv4(mgmt_dict[vdu.name]))

        # Delete vnf_instance with vnf_id
        try:
            self.client.delete_vnf(vnf_id)
        except Exception:
            assert False, "vnf Delete of test_vnf_with_multiple_vdus failed"

        self.wait_until_vnf_delete(vnf_id,
                                   constants.VNF_CIRROS_DELETE_TIMEOUT)
        self.verify_vnf_crud_events(vnf_id, evt_constants.RES_EVT_DELETE,
                                    evt_constants.PENDING_DELETE, cnt=2)