# 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 heatclient.common import template_utils
from unittest import mock

import testtools
import time

from senlinclient.common import exc
from senlinclient.common.i18n import _
from senlinclient.common import utils


class UtilTest(testtools.TestCase):

    def test_format_parameter(self):
        params = ['status=ACTIVE;name=cluster1']
        format_params = {'status': 'ACTIVE', 'name': 'cluster1'}
        self.assertEqual(format_params,
                         utils.format_parameters(params))

    def test_format_parameter_split(self):
        params = ['status=ACTIVE', 'name=cluster1']
        format_params = {'status': 'ACTIVE', 'name': 'cluster1'}
        self.assertEqual(format_params,
                         utils.format_parameters(params))

    def test_format_parameter_none_dict(self):
        params = ['{}']
        self.assertEqual({}, utils.format_parameters(params))

    def test_format_parameter_none(self):
        self.assertEqual({}, utils.format_parameters(None))

    def test_format_parameter_bad_format(self):
        params = ['status:ACTIVE;name:cluster1']
        ex = self.assertRaises(exc.CommandError,
                               utils.format_parameters,
                               params)
        msg = _('Malformed parameter(status:ACTIVE). '
                'Use the key=value format.')
        self.assertEqual(msg, str(ex))

    @mock.patch.object(template_utils,
                       'process_multiple_environments_and_files')
    @mock.patch.object(template_utils, 'get_template_contents')
    def test_process_stack_spec(self, mock_get_temp, mock_process):
        spec = {
            'template': 'temp.yaml',
            'disable_rollback': True,
            'context': {
                'region_name': 'RegionOne'
            },
        }
        tpl_files = {'fake_key1': 'fake_value1'}
        template = mock.Mock()
        mock_get_temp.return_value = tpl_files, template
        env_files = {'fake_key2': 'fake_value2'}
        env = mock.Mock()
        mock_process.return_value = env_files, env
        new_spec = utils.process_stack_spec(spec)
        stack_spec = {
            'disable_rollback': True,
            'context': {
                'region_name': 'RegionOne',
            },
            'parameters': {},
            'timeout': 60,
            'template': template,
            'files': {
                'fake_key1': 'fake_value1',
                'fake_key2': 'fake_value2',
            },
            'environment': env
        }
        self.assertEqual(stack_spec, new_spec)
        mock_get_temp.assert_called_once_with(template_file='temp.yaml')
        mock_process.assert_called_once_with(env_paths=None)

    def test_json_formatter_with_empty_json(self):
        params = {}
        self.assertEqual('{}', utils.json_formatter(params))

    def test_list_formatter_with_list(self):
        params = ['foo', 'bar']
        self.assertEqual('foo\nbar', utils.list_formatter(params))

    def test_list_formatter_with_empty_list(self):
        params = []
        self.assertEqual('', utils.list_formatter(params))

    @mock.patch.object(utils, '_check')
    def test_await_cluster_action(self, mock_check):
        utils.await_action('fake-client', 'test-action-id')
        mock_check.assert_called_once()

    @mock.patch.object(utils, '_check')
    def test_await_cluster_status(self, mock_check):
        utils.await_cluster_status('fake-client', 'ACTIVE')
        mock_check.assert_called_once()

    @mock.patch.object(utils, '_check')
    def test_await_cluster_delete(self, mock_check):
        utils.await_cluster_delete('fake-client', 'test-cluster-id')
        mock_check.assert_called_once()

    def test_check(self):
        check_func = mock.Mock(return_value=True)

        try:
            utils._check(check_func)
        except Exception:
            self.fail("_check() unexpectedly raised an exception")

        check_func.assert_called()

    @mock.patch.object(time, 'sleep')
    def test_check_raises(self, mock_sleep):
        mock_check_func = mock.Mock(return_value=False)

        poll_count = 2
        poll_interval = 1

        self.assertRaises(exc.PollingExceededError, utils._check,
                          mock_check_func, poll_count, poll_interval)
        mock_check_func.assert_called()
        mock_sleep.assert_called()