#   Copyright 2017 Huawei, Inc. All rights reserved.
#
#   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 unittest import mock

import iso8601
from novaclient import api_versions
from openstack import utils as sdk_utils
from osc_lib import exceptions

from openstackclient.compute.v2 import server_event
from openstackclient.tests.unit.compute.v2 import fakes as compute_fakes


class TestServerEvent(compute_fakes.TestComputev2):

    fake_server = compute_fakes.FakeServer.create_one_server()

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

        self.app.client_manager.sdk_connection = mock.Mock()
        self.app.client_manager.sdk_connection.compute = mock.Mock()
        self.sdk_client = self.app.client_manager.sdk_connection.compute
        self.sdk_client.find_server = mock.Mock()
        self.sdk_client.server_actions = mock.Mock()
        self.sdk_client.get_server_action = mock.Mock()
        self.sdk_client.reset_mock()

        patcher = mock.patch.object(
            sdk_utils, 'supports_microversion', return_value=True)
        self.addCleanup(patcher.stop)
        self.supports_microversion_mock = patcher.start()
        self._set_mock_microversion(
            self.app.client_manager.compute.api_version.get_string())

    def _set_mock_microversion(self, mock_v):
        """Set a specific microversion for the mock supports_microversion()."""
        self.supports_microversion_mock.reset_mock(return_value=True)

        self.supports_microversion_mock.side_effect = (
            lambda _, v:
            api_versions.APIVersion(v) <= api_versions.APIVersion(mock_v)
        )


class TestListServerEvent(TestServerEvent):

    fake_event = compute_fakes.create_one_server_action()

    columns = (
        'Request ID',
        'Server ID',
        'Action',
        'Start Time',
    )
    data = ((
        fake_event.request_id,
        fake_event.server_id,
        fake_event.action,
        fake_event.start_time,
    ), )

    long_columns = (
        'Request ID',
        'Server ID',
        'Action',
        'Start Time',
        'Message',
        'Project ID',
        'User ID',
    )
    long_data = ((
        fake_event.request_id,
        fake_event.server_id,
        fake_event.action,
        fake_event.start_time,
        fake_event.message,
        fake_event.project_id,
        fake_event.user_id,
    ), )

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

        self.sdk_client.find_server.return_value = self.fake_server
        self.sdk_client.server_actions.return_value = [self.fake_event, ]

        self.cmd = server_event.ListServerEvent(self.app, None)

    def test_server_event_list(self):
        arglist = [
            self.fake_server.name,
        ]
        verifylist = [
            ('server', self.fake_server.name),
            ('long', False),
        ]

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

        self.sdk_client.find_server.assert_called_with(
            self.fake_server.name,
            ignore_missing=False,
        )
        self.sdk_client.server_actions.assert_called_with(self.fake_server.id)

        self.assertEqual(self.columns, columns)
        self.assertEqual(self.data, tuple(data))

    def test_server_event_list_long(self):
        arglist = [
            '--long',
            self.fake_server.name,
        ]
        verifylist = [
            ('server', self.fake_server.name),
            ('long', True),
        ]

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

        self.sdk_client.find_server.assert_called_with(
            self.fake_server.name,
            ignore_missing=False,
        )
        self.sdk_client.server_actions.assert_called_with(self.fake_server.id)

        self.assertEqual(self.long_columns, columns)
        self.assertEqual(self.long_data, tuple(data))

    def test_server_event_list_with_changes_since(self):
        self._set_mock_microversion('2.58')

        arglist = [
            '--changes-since', '2016-03-04T06:27:59Z',
            self.fake_server.name,
        ]
        verifylist = [
            ('server', self.fake_server.name),
            ('changes_since', '2016-03-04T06:27:59Z'),
        ]

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

        self.sdk_client.find_server.assert_called_with(
            self.fake_server.name,
            ignore_missing=False,
        )
        self.sdk_client.server_actions.assert_called_with(
            self.fake_server.id,
            changes_since='2016-03-04T06:27:59Z',
        )

        self.assertEqual(self.columns, columns)
        self.assertEqual(tuple(self.data), tuple(data))

    @mock.patch.object(iso8601, 'parse_date', side_effect=iso8601.ParseError)
    def test_server_event_list_with_changes_since_invalid(
        self, mock_parse_isotime,
    ):
        self._set_mock_microversion('2.58')

        arglist = [
            '--changes-since', 'Invalid time value',
            self.fake_server.name,
        ]
        verifylist = [
            ('server', self.fake_server.name),
            ('changes_since', 'Invalid time value'),
        ]

        parsed_args = self.check_parser(self.cmd, arglist, verifylist)
        ex = self.assertRaises(
            exceptions.CommandError,
            self.cmd.take_action,
            parsed_args,
        )

        self.assertIn('Invalid changes-since value:', str(ex))
        mock_parse_isotime.assert_called_once_with(
            'Invalid time value'
        )

    def test_server_event_list_with_changes_since_pre_v258(self):
        self._set_mock_microversion('2.57')

        arglist = [
            '--changes-since', '2016-03-04T06:27:59Z',
            self.fake_server.name,
        ]
        verifylist = [
            ('server', self.fake_server.name),
            ('changes_since', '2016-03-04T06:27:59Z'),
        ]

        parsed_args = self.check_parser(self.cmd, arglist, verifylist)
        ex = self.assertRaises(
            exceptions.CommandError,
            self.cmd.take_action,
            parsed_args,
        )

        self.assertIn(
            '--os-compute-api-version 2.58 or greater is required', str(ex),
        )

    def test_server_event_list_with_changes_before(self):
        self._set_mock_microversion('2.66')

        arglist = [
            '--changes-before', '2016-03-04T06:27:59Z',
            self.fake_server.name,
        ]
        verifylist = [
            ('server', self.fake_server.name),
            ('changes_before', '2016-03-04T06:27:59Z'),
        ]

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

        self.sdk_client.find_server.assert_called_with(
            self.fake_server.name,
            ignore_missing=False,
        )
        self.sdk_client.server_actions.assert_called_with(
            self.fake_server.id,
            changes_before='2016-03-04T06:27:59Z',
        )

        self.assertEqual(self.columns, columns)
        self.assertEqual(tuple(self.data), tuple(data))

    @mock.patch.object(iso8601, 'parse_date', side_effect=iso8601.ParseError)
    def test_server_event_list_with_changes_before_invalid(
        self, mock_parse_isotime,
    ):
        self._set_mock_microversion('2.66')

        arglist = [
            '--changes-before', 'Invalid time value',
            self.fake_server.name,
        ]
        verifylist = [
            ('server', self.fake_server.name),
            ('changes_before', 'Invalid time value'),
        ]

        parsed_args = self.check_parser(self.cmd, arglist, verifylist)
        ex = self.assertRaises(
            exceptions.CommandError,
            self.cmd.take_action,
            parsed_args)

        self.assertIn('Invalid changes-before value:', str(ex))
        mock_parse_isotime.assert_called_once_with(
            'Invalid time value'
        )

    def test_server_event_list_with_changes_before_pre_v266(self):
        self._set_mock_microversion('2.65')

        arglist = [
            '--changes-before', '2016-03-04T06:27:59Z',
            self.fake_server.name,
        ]
        verifylist = [
            ('server', self.fake_server.name),
            ('changes_before', '2016-03-04T06:27:59Z'),
        ]

        parsed_args = self.check_parser(self.cmd, arglist, verifylist)
        ex = self.assertRaises(
            exceptions.CommandError,
            self.cmd.take_action,
            parsed_args)

        self.assertIn(
            '--os-compute-api-version 2.66 or greater is required',
            str(ex),
        )

    def test_server_event_list_with_limit(self):
        self._set_mock_microversion('2.58')

        arglist = [
            '--limit', '1',
            self.fake_server.name,
        ]
        verifylist = [
            ('limit', 1),
            ('server', self.fake_server.name),
        ]

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

        self.sdk_client.server_actions.assert_called_with(
            self.fake_server.id,
            limit=1,
            paginated=False,
        )

    def test_server_event_list_with_limit_pre_v258(self):
        self._set_mock_microversion('2.57')

        arglist = [
            '--limit', '1',
            self.fake_server.name,
        ]
        verifylist = [
            ('limit', 1),
            ('server', self.fake_server.name),
        ]

        parsed_args = self.check_parser(self.cmd, arglist, verifylist)
        ex = self.assertRaises(
            exceptions.CommandError,
            self.cmd.take_action,
            parsed_args,
        )

        self.assertIn(
            '--os-compute-api-version 2.58 or greater is required',
            str(ex),
        )

    def test_server_event_list_with_marker(self):
        self._set_mock_microversion('2.58')

        arglist = [
            '--marker', 'test_event',
            self.fake_server.name,
        ]
        verifylist = [
            ('marker', 'test_event'),
            ('server', self.fake_server.name),
        ]

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

        self.sdk_client.server_actions.assert_called_with(
            self.fake_server.id,
            marker='test_event',
        )

    def test_server_event_list_with_marker_pre_v258(self):
        self._set_mock_microversion('2.57')

        arglist = [
            '--marker', 'test_event',
            self.fake_server.name,
        ]
        verifylist = [
            ('marker', 'test_event'),
            ('server', self.fake_server.name),
        ]

        parsed_args = self.check_parser(self.cmd, arglist, verifylist)
        ex = self.assertRaises(
            exceptions.CommandError,
            self.cmd.take_action,
            parsed_args)

        self.assertIn(
            '--os-compute-api-version 2.58 or greater is required', str(ex))


class TestShowServerEvent(TestServerEvent):

    fake_event = compute_fakes.create_one_server_action()
    columns = (
        'action',
        'events',
        'id',
        'message',
        'project_id',
        'request_id',
        'start_time',
        'user_id',
    )
    data = (
        fake_event.action,
        server_event.ServerActionEventColumn(fake_event.events),
        fake_event.id,
        fake_event.message,
        fake_event.project_id,
        fake_event.request_id,
        fake_event.start_time,
        fake_event.user_id,
    )

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

        self.sdk_client.find_server.return_value = self.fake_server
        self.sdk_client.get_server_action.return_value = self.fake_event

        self.cmd = server_event.ShowServerEvent(self.app, None)

    def test_server_event_show(self):
        arglist = [
            self.fake_server.name,
            self.fake_event.request_id,
        ]
        verifylist = [
            ('server', self.fake_server.name),
            ('request_id', self.fake_event.request_id),
        ]

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

        self.sdk_client.find_server.assert_called_with(
            self.fake_server.name,
            ignore_missing=False,
        )
        self.sdk_client.get_server_action.assert_called_with(
            self.fake_event.request_id,
            self.fake_server.id,
        )

        self.assertEqual(self.columns, columns)
        self.assertEqual(self.data, data)