#   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 copy
import mock

from osc_lib import exceptions

from octaviaclient.osc.v2 import constants
from octaviaclient.osc.v2 import pool as pool
from octaviaclient.tests.unit.osc.v2 import constants as attr_consts
from octaviaclient.tests.unit.osc.v2 import fakes


class TestPool(fakes.TestOctaviaClient):

    def setUp(self):
        super(TestPool, self).setUp()

        self._po = fakes.createFakeResource('pool')
        self.pool_info = copy.deepcopy(attr_consts.POOL_ATTRS)
        self.columns = copy.deepcopy(constants.POOL_COLUMNS)

        self.api_mock = mock.Mock()
        self.api_mock.pool_list.return_value = copy.deepcopy(
            {'pools': [attr_consts.POOL_ATTRS]})
        lb_client = self.app.client_manager
        lb_client.load_balancer = self.api_mock


class TestPoolList(TestPool):

    def setUp(self):
        super(TestPoolList, self).setUp()
        self.datalist = (tuple(
            attr_consts.POOL_ATTRS[k] for k in self.columns
        ),)
        self.cmd = pool.ListPool(self.app, None)

    def test_pool_list_no_options(self):
        arglist = []
        verifylist = []

        parsed_args = self.check_parser(self.cmd, arglist, verifylist)
        columns, data = self.cmd.take_action(parsed_args)

        self.api_mock.pool_list.assert_called_with()
        self.assertEqual(self.columns, columns)
        self.assertEqual(self.datalist, tuple(data))


class TestPoolDelete(TestPool):

    def setUp(self):
        super(TestPoolDelete, self).setUp()
        self.cmd = pool.DeletePool(self.app, None)

    def test_pool_delete(self):
        arglist = [self._po.id]
        verifylist = [
            ('pool', self._po.id)
        ]

        parsed_args = self.check_parser(self.cmd, arglist, verifylist)
        self.cmd.take_action(parsed_args)
        self.api_mock.pool_delete.assert_called_with(
            pool_id=self._po.id)

    def test_listener_delete_failure(self):
        arglist = ['unknown_pool']
        verifylist = [
            ('pool', 'unknown_pool')
        ]
        parsed_args = self.check_parser(self.cmd, arglist, verifylist)
        self.assertRaises(exceptions.CommandError, self.cmd.take_action,
                          parsed_args)
        self.assertNotCalled(self.api_mock.pool_delete)


class TestPoolCreate(TestPool):

    def setUp(self):
        super(TestPoolCreate, self).setUp()
        self.api_mock.pool_create.return_value = {
            'pool': self.pool_info}
        lb_client = self.app.client_manager
        lb_client.load_balancer = self.api_mock

        self.cmd = pool.CreatePool(self.app, None)

    @mock.patch('octaviaclient.osc.v2.utils.get_pool_attrs')
    def test_pool_create(self, mock_attrs):
        mock_attrs.return_value = self.pool_info
        arglist = ['--loadbalancer', 'mock_lb_id',
                   '--name', self._po.name,
                   '--protocol', 'HTTP',
                   '--lb-algorithm', 'ROUND_ROBIN',
                   '--tls-container-ref', self._po.tls_container_ref]

        verifylist = [
            ('loadbalancer', 'mock_lb_id'),
            ('name', self._po.name),
            ('protocol', 'HTTP'),
            ('lb_algorithm', 'ROUND_ROBIN'),
            ('tls_container_ref', self._po.tls_container_ref)
        ]

        parsed_args = self.check_parser(self.cmd, arglist, verifylist)
        self.cmd.take_action(parsed_args)
        self.api_mock.pool_create.assert_called_with(
            json={'pool': self.pool_info})


class TestPoolShow(TestPool):

    def setUp(self):
        super(TestPoolShow, self).setUp()
        self.api_mock.pool_show.return_value = self.pool_info
        lb_client = self.app.client_manager
        lb_client.load_balancer = self.api_mock

        self.cmd = pool.ShowPool(self.app, None)

    def test_pool_show(self,):
        arglist = [self._po.id]
        verifylist = [
            ('pool', self._po.id),
        ]

        parsed_args = self.check_parser(self.cmd, arglist, verifylist)
        self.cmd.take_action(parsed_args)
        self.api_mock.pool_show.assert_called_with(pool_id=self._po.id)


class TestPoolSet(TestPool):

    def setUp(self):
        super(TestPoolSet, self).setUp()
        self.cmd = pool.SetPool(self.app, None)

    def test_pool_set(self):
        new_tls_id = 'test-tls-container-id'
        arglist = [self._po.id, '--name', 'new_name', '--tls-container-ref',
                   new_tls_id]
        verifylist = [
            ('pool', self._po.id),
            ('name', 'new_name')
        ]

        parsed_args = self.check_parser(self.cmd, arglist, verifylist)
        self.cmd.take_action(parsed_args)
        self.api_mock.pool_set.assert_called_with(
            self._po.id, json={'pool': {'name': 'new_name',
                                        'tls_container_ref': new_tls_id}})