# 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 ddt
import mock

from os_faults.ansible import executor
from os_faults.api import error
from os_faults.drivers import fuel
from os_faults.tests.unit import fakes
from os_faults.tests.unit import test


@ddt.ddt
class FuelServiceTestCase(test.TestCase):

    def setUp(self):
        super(FuelServiceTestCase, self).setUp()
        self.conf = {'address': 'fuel.local', 'username': 'root'}
        self.fake_ansible_result = fakes.FakeAnsibleResult(
            payload={
                'stdout': '[{"ip": "10.0.0.2", "mac": "02", "fqdn": "node-2"},'
                          ' {"ip": "10.0.0.3", "mac": "03", "fqdn": "node-3"}]'
            })

    @mock.patch('os_faults.ansible.executor.AnsibleRunner', autospec=True)
    @ddt.data(*fuel.FuelManagement.SERVICE_NAME_TO_CLASS.items())
    @ddt.unpack
    def test_kill(self, service_name, service_cls, mock_ansible_runner):
        ansible_runner_inst = mock_ansible_runner.return_value
        ansible_runner_inst.execute.side_effect = [
            [self.fake_ansible_result],
            [fakes.FakeAnsibleResult(payload={'stdout': ''},
                                     host='10.0.0.2'),
             fakes.FakeAnsibleResult(payload={'stdout': ''},
                                     host='10.0.0.3')],
            [fakes.FakeAnsibleResult(payload={'stdout': ''},
                                     host='10.0.0.2'),
             fakes.FakeAnsibleResult(payload={'stdout': ''},
                                     host='10.0.0.3')]
        ]

        fuel_managment = fuel.FuelManagement(self.conf)

        service = fuel_managment.get_service(service_name)
        self.assertIsInstance(service, service_cls)

        service.kill()

        get_nodes_cmd = 'bash -c "ps ax | grep \'{}\'"'.format(
            service_cls.GREP)
        ansible_runner_inst.execute.assert_has_calls([
            mock.call(['fuel.local'], {'command': 'fuel node --json'}),
            mock.call(['10.0.0.2', '10.0.0.3'],
                      {'command': get_nodes_cmd}, []),
            mock.call(['10.0.0.2', '10.0.0.3'],
                      {'kill': {'grep': service_cls.GREP, 'sig': 9}}),
        ])

    @mock.patch('os_faults.ansible.executor.AnsibleRunner', autospec=True)
    @ddt.data(*fuel.FuelManagement.SERVICE_NAME_TO_CLASS.items())
    @ddt.unpack
    def test_freeze(self, service_name, service_cls, mock_ansible_runner):
        ansible_runner_inst = mock_ansible_runner.return_value
        ansible_runner_inst.execute.side_effect = [
            [self.fake_ansible_result],
            [fakes.FakeAnsibleResult(payload={'stdout': ''},
                                     host='10.0.0.2'),
             fakes.FakeAnsibleResult(payload={'stdout': ''},
                                     host='10.0.0.3')],
            [fakes.FakeAnsibleResult(payload={'stdout': ''},
                                     host='10.0.0.2'),
             fakes.FakeAnsibleResult(payload={'stdout': ''},
                                     host='10.0.0.3')]
        ]

        fuel_managment = fuel.FuelManagement(self.conf)

        service = fuel_managment.get_service(service_name)
        self.assertIsInstance(service, service_cls)

        service.freeze()

        get_nodes_cmd = 'bash -c "ps ax | grep \'{}\'"'.format(
            service_cls.GREP)
        ansible_runner_inst.execute.assert_has_calls([
            mock.call(['fuel.local'], {'command': 'fuel node --json'}),
            mock.call(['10.0.0.2', '10.0.0.3'],
                      {'command': get_nodes_cmd}, []),
            mock.call(['10.0.0.2', '10.0.0.3'],
                      {'kill': {'grep': service_cls.GREP, 'sig': 19}}),
        ])

    @mock.patch('os_faults.ansible.executor.AnsibleRunner', autospec=True)
    @ddt.data(*fuel.FuelManagement.SERVICE_NAME_TO_CLASS.items())
    @ddt.unpack
    def test_freeze_sec(self, service_name, service_cls, mock_ansible_runner):
        ansible_runner_inst = mock_ansible_runner.return_value
        ansible_runner_inst.execute.side_effect = [
            [self.fake_ansible_result],
            [fakes.FakeAnsibleResult(payload={'stdout': ''},
                                     host='10.0.0.2'),
             fakes.FakeAnsibleResult(payload={'stdout': ''},
                                     host='10.0.0.3')],
            [fakes.FakeAnsibleResult(payload={'stdout': ''},
                                     host='10.0.0.2'),
             fakes.FakeAnsibleResult(payload={'stdout': ''},
                                     host='10.0.0.3')]
        ]

        fuel_managment = fuel.FuelManagement(self.conf)

        service = fuel_managment.get_service(service_name)
        self.assertIsInstance(service, service_cls)

        delay_sec = 10
        service.freeze(nodes=None, sec=delay_sec)

        get_nodes_cmd = 'bash -c "ps ax | grep \'{}\'"'.format(
            service_cls.GREP)
        ansible_runner_inst.execute.assert_has_calls([
            mock.call(['fuel.local'], {'command': 'fuel node --json'}),
            mock.call(['10.0.0.2', '10.0.0.3'],
                      {'command': get_nodes_cmd}, []),
            mock.call(['10.0.0.2', '10.0.0.3'],
                      {'freeze': {'grep': service_cls.GREP,
                                  'sec': delay_sec}}),
        ])

    @mock.patch('os_faults.ansible.executor.AnsibleRunner', autospec=True)
    @ddt.data(*fuel.FuelManagement.SERVICE_NAME_TO_CLASS.items())
    @ddt.unpack
    def test_unfreeze(self, service_name, service_cls, mock_ansible_runner):
        ansible_runner_inst = mock_ansible_runner.return_value
        ansible_runner_inst.execute.side_effect = [
            [self.fake_ansible_result],
            [fakes.FakeAnsibleResult(payload={'stdout': ''},
                                     host='10.0.0.2'),
             fakes.FakeAnsibleResult(payload={'stdout': ''},
                                     host='10.0.0.3')],
            [fakes.FakeAnsibleResult(payload={'stdout': ''},
                                     host='10.0.0.2'),
             fakes.FakeAnsibleResult(payload={'stdout': ''},
                                     host='10.0.0.3')]
        ]

        fuel_managment = fuel.FuelManagement(self.conf)

        service = fuel_managment.get_service(service_name)
        self.assertIsInstance(service, service_cls)

        service.unfreeze()

        get_nodes_cmd = 'bash -c "ps ax | grep \'{}\'"'.format(
            service_cls.GREP)
        ansible_runner_inst.execute.assert_has_calls([
            mock.call(['fuel.local'], {'command': 'fuel node --json'}),
            mock.call(['10.0.0.2', '10.0.0.3'],
                      {'command': get_nodes_cmd}, []),
            mock.call(['10.0.0.2', '10.0.0.3'],
                      {'kill': {'grep': service_cls.GREP, 'sig': 18}}),
        ])

    @mock.patch('os_faults.ansible.executor.AnsibleRunner', autospec=True)
    @ddt.data(('mysql', fuel.MySQLService))
    @ddt.unpack
    def test_unplug(self, service_name, service_cls, mock_ansible_runner):
        ansible_runner_inst = mock_ansible_runner.return_value
        ansible_runner_inst.execute.side_effect = [
            [self.fake_ansible_result],
            [fakes.FakeAnsibleResult(payload={'stdout': ''},
                                     host='10.0.0.2'),
             fakes.FakeAnsibleResult(payload={'stdout': ''},
                                     host='10.0.0.3')],
            [fakes.FakeAnsibleResult(payload={'stdout': ''},
                                     host='10.0.0.2'),
             fakes.FakeAnsibleResult(payload={'stdout': ''},
                                     host='10.0.0.3')]
        ]

        fuel_managment = fuel.FuelManagement(self.conf)

        service = fuel_managment.get_service(service_name)
        self.assertIsInstance(service, service_cls)

        service.unplug()

        get_nodes_cmd = 'bash -c "ps ax | grep \'{}\'"'.format(
            service_cls.GREP)
        ansible_runner_inst.execute.assert_has_calls([
            mock.call(['fuel.local'], {'command': 'fuel node --json'}),
            mock.call(['10.0.0.2', '10.0.0.3'],
                      {'command': get_nodes_cmd}, []),
            mock.call(['10.0.0.2', '10.0.0.3'],
                      {'iptables': {'protocol': service_cls.PORT[0],
                                    'port': service_cls.PORT[1],
                                    'action': 'block',
                                    'service': service_cls.SERVICE_NAME}}),
        ])

    @mock.patch('os_faults.ansible.executor.AnsibleRunner', autospec=True)
    @ddt.data(('mysql', fuel.MySQLService))
    @ddt.unpack
    def test_plug(self, service_name, service_cls, mock_ansible_runner):
        ansible_runner_inst = mock_ansible_runner.return_value
        ansible_runner_inst.execute.side_effect = [
            [self.fake_ansible_result],
            [fakes.FakeAnsibleResult(payload={'stdout': ''},
                                     host='10.0.0.2'),
             fakes.FakeAnsibleResult(payload={'stdout': ''},
                                     host='10.0.0.3')],
            [fakes.FakeAnsibleResult(payload={'stdout': ''},
                                     host='10.0.0.2'),
             fakes.FakeAnsibleResult(payload={'stdout': ''},
                                     host='10.0.0.3')]
        ]

        fuel_managment = fuel.FuelManagement(self.conf)

        service = fuel_managment.get_service(service_name)
        self.assertIsInstance(service, service_cls)

        service.plug()

        get_nodes_cmd = 'bash -c "ps ax | grep \'{}\'"'.format(
            service_cls.GREP)
        ansible_runner_inst.execute.assert_has_calls([
            mock.call(['fuel.local'], {'command': 'fuel node --json'}),
            mock.call(['10.0.0.2', '10.0.0.3'],
                      {'command': get_nodes_cmd}, []),
            mock.call(['10.0.0.2', '10.0.0.3'],
                      {'iptables': {'protocol': service_cls.PORT[0],
                                    'port': service_cls.PORT[1],
                                    'action': 'unblock',
                                    'service': service_cls.SERVICE_NAME}}),
        ])

    @mock.patch('os_faults.ansible.executor.AnsibleRunner', autospec=True)
    @ddt.data(('keystone', fuel.KeystoneService),
              ('nova-api', fuel.NovaAPIService),
              ('glance-api', fuel.GlanceAPIService),
              ('nova-compute', fuel.NovaComputeService),
              ('nova-scheduler', fuel.NovaSchedulerService),
              ('neutron-openvswitch-agent',
               fuel.NeutronOpenvswitchAgentService),
              ('neutron-l3-agent', fuel.NeutronL3AgentService),
              ('heat-api', fuel.HeatAPIService),
              ('heat-engine', fuel.HeatEngineService))
    @ddt.unpack
    def test_restart(self, service_name, service_cls, mock_ansible_runner):
        ansible_runner_inst = mock_ansible_runner.return_value
        ansible_runner_inst.execute.side_effect = [
            [self.fake_ansible_result],
            [fakes.FakeAnsibleResult(payload={'stdout': ''},
                                     host='10.0.0.2'),
             fakes.FakeAnsibleResult(payload={'stdout': ''},
                                     host='10.0.0.3')],
            [fakes.FakeAnsibleResult(payload={'stdout': ''},
                                     host='10.0.0.2'),
             fakes.FakeAnsibleResult(payload={'stdout': ''},
                                     host='10.0.0.3')]
        ]

        fuel_managment = fuel.FuelManagement(self.conf)

        service = fuel_managment.get_service(service_name)
        self.assertIsInstance(service, service_cls)

        service.restart()

        get_nodes_cmd = 'bash -c "ps ax | grep \'{}\'"'.format(
            service.GREP)
        ansible_runner_inst.execute.assert_has_calls([
            mock.call(['fuel.local'], {'command': 'fuel node --json'}),
            mock.call(['10.0.0.2', '10.0.0.3'],
                      {'command': get_nodes_cmd}, []),
            mock.call(['10.0.0.2', '10.0.0.3'],
                      {'command': service_cls.RESTART_CMD}),
        ])

    @mock.patch('os_faults.ansible.executor.AnsibleRunner', autospec=True)
    def test_run_task_error(self, mock_ansible_runner):
        ansible_runner_inst = mock_ansible_runner.return_value
        ansible_runner_inst.execute.side_effect = [
            [self.fake_ansible_result],
            [fakes.FakeAnsibleResult(payload={'stdout': ''},
                                     host='10.0.0.2'),
             fakes.FakeAnsibleResult(payload={'stdout': ''},
                                     host='10.0.0.3')],
            [fakes.FakeAnsibleResult(payload={'stdout': ''},
                                     host='10.0.0.2',
                                     status=executor.STATUS_FAILED),
             fakes.FakeAnsibleResult(payload={'stdout': ''},
                                     host='10.0.0.3')]
        ]

        fuel_managment = fuel.FuelManagement(self.conf)

        service = fuel_managment.get_service('keystone')
        exception = self.assertRaises(error.ServiceError, service.restart)
        self.assertEqual('Task failed on some nodes', str(exception))

        get_nodes_cmd = 'bash -c "ps ax | grep \'{}\'"'.format(
            service.GREP)
        ansible_runner_inst.execute.assert_has_calls([
            mock.call(['fuel.local'], {'command': 'fuel node --json'}),
            mock.call(['10.0.0.2', '10.0.0.3'],
                      {'command': get_nodes_cmd}, []),
            mock.call(['10.0.0.2', '10.0.0.3'],
                      {'command': service.RESTART_CMD}),
        ])

    @mock.patch('os_faults.ansible.executor.AnsibleRunner', autospec=True)
    def test_run_node_collection_empty(self, mock_ansible_runner):
        ansible_runner_inst = mock_ansible_runner.return_value
        ansible_runner_inst.execute.side_effect = [
            [self.fake_ansible_result],
            [fakes.FakeAnsibleResult(payload={'stdout': ''},
                                     host='10.0.0.2',
                                     status=executor.STATUS_FAILED),
             fakes.FakeAnsibleResult(payload={'stdout': ''},
                                     host='10.0.0.3',
                                     status=executor.STATUS_FAILED)],
        ]

        fuel_managment = fuel.FuelManagement(self.conf)

        service = fuel_managment.get_service('keystone')
        exception = self.assertRaises(error.ServiceError, service.restart)
        self.assertEqual('Node collection is empty', str(exception))

        get_nodes_cmd = 'bash -c "ps ax | grep \'{}\'"'.format(
            service.GREP)
        ansible_runner_inst.execute.assert_has_calls([
            mock.call(['fuel.local'], {'command': 'fuel node --json'}),
            mock.call(['10.0.0.2', '10.0.0.3'],
                      {'command': get_nodes_cmd}, []),
        ])