# Copyright 2018 AT&T Intellectual Property.  All other 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.

import mock

from armada import const
from armada.exceptions import manifest_exceptions
from armada.handlers import wait
from armada.tests.unit import base

test_chart = {'wait': {'timeout': 10, 'native': {'enabled': False}}}


class ChartWaitTestCase(base.ArmadaTestCase):

    def get_unit(self, chart, timeout=None):
        return wait.ChartWait(
            k8s=mock.MagicMock(),
            release_name='test-test',
            chart=chart,
            namespace='test',
            k8s_wait_attempts=1,
            k8s_wait_attempt_sleep=1,
            timeout=timeout)

    def test_get_timeout(self):
        unit = self.get_unit({'timeout': 5, 'wait': {'timeout': 10}})
        self.assertEquals(unit.get_timeout(), 10)

    def test_get_timeout_default(self):
        unit = self.get_unit({})
        self.assertEquals(unit.get_timeout(), const.DEFAULT_CHART_TIMEOUT)

    def test_get_timeout_override(self):
        unit = self.get_unit(
            timeout=20, chart={
                'timeout': 5,
                'wait': {
                    'timeout': 10
                }
            })

        self.assertEquals(unit.get_timeout(), 20)

    def test_get_timeout_deprecated(self):
        unit = self.get_unit({'timeout': 5})
        self.assertEquals(unit.get_timeout(), 5)

    def test_is_native_enabled_default_true(self):
        unit = self.get_unit({})
        self.assertEquals(unit.is_native_enabled(), True)

    def test_is_native_enabled_true(self):
        unit = self.get_unit({'wait': {'native': {'enabled': True}}})
        self.assertEquals(unit.is_native_enabled(), True)

    def test_is_native_enabled_false(self):
        unit = self.get_unit({'wait': {'native': {'enabled': False}}})
        self.assertEquals(unit.is_native_enabled(), False)

    def test_waits_init(self):
        unit = self.get_unit({
            'wait': {
                'resources': [{
                    'type': 'pod',
                    'labels': {
                        'foo': 'bar'
                    }
                }, {
                    'type': 'job',
                    'labels': {
                        'foo': 'bar'
                    }
                }, {
                    'type': 'daemonset',
                    'labels': {
                        'foo': 'bar'
                    },
                    'min_ready': 5
                }, {
                    'type': 'deployment',
                    'labels': {
                        'foo': 'bar'
                    },
                    'min_ready': '50%'
                }, {
                    'type': 'statefulset',
                    'labels': {
                        'foo': 'bar'
                    }
                }]
            }
        })  # yapf: disable

        self.assertEqual(5, len(unit.waits))
        self.assertIsInstance(unit.waits[0], wait.PodWait)
        self.assertIsInstance(unit.waits[1], wait.JobWait)
        self.assertIsInstance(unit.waits[2], wait.DaemonSetWait)
        self.assertIsInstance(unit.waits[3], wait.DeploymentWait)
        self.assertIsInstance(unit.waits[4], wait.StatefulSetWait)

    def test_waits_init_min_ready_fails_if_not_controller(self):

        def create_pod_wait_min_ready():
            self.get_unit({
                'wait': {
                    'resources': [{
                        'type': 'pod',
                        'labels': {
                            'foo': 'bar'
                        },
                        'min_ready': 5
                    }]
                }
            })

        self.assertRaises(manifest_exceptions.ManifestException,
                          create_pod_wait_min_ready)

        def create_job_wait_min_ready():
            self.get_unit({
                'wait': {
                    'resources': [{
                        'type': 'job',
                        'labels': {
                            'foo': 'bar'
                        },
                        'min_ready': 5
                    }]
                }
            })

        self.assertRaises(manifest_exceptions.ManifestException,
                          create_job_wait_min_ready)

    def test_waits_init_invalid_type(self):

        def create_with_invalid_type():
            self.get_unit({
                'wait': {
                    'resources': [{
                        'type': 'invalid',
                        'labels': {
                            'foo': 'bar'
                        },
                        'min_ready': 5
                    }]
                }
            })

        self.assertRaises(manifest_exceptions.ManifestException,
                          create_with_invalid_type)

    @mock.patch.object(wait.ChartWait, 'get_resource_wait')
    def test_wait(self, get_resource_wait):

        def return_mock(*args, **kwargs):
            return mock.MagicMock()

        get_resource_wait.side_effect = return_mock

        unit = self.get_unit({
            'wait': {
                'resources': [{
                    'type': 'foo'
                }, {
                    'type': 'bar'
                }]
            }
        })

        unit.wait(10)

        self.assertEqual(2, len(unit.waits))
        for w in unit.waits:
            w.wait.assert_called_once()


class PodWaitTestCase(base.ArmadaTestCase):

    def get_unit(self, labels):
        return wait.PodWait(
            resource_type='pod', chart_wait=mock.MagicMock(), labels=labels)

    def test_include_resource(self):

        def mock_resource(annotations):
            resource = mock.Mock()
            resource.metadata.annotations = annotations
            return resource

        test_resources = [
            mock_resource({
                'key': 'value',
                'helm.sh/hook': 'test-success'
            }),
            mock_resource({
                'helm.sh/hook': 'test-failure'
            }),
            mock_resource({
                'helm.sh/hook': 'test-success,pre-install'
            })
        ]
        non_test_resources = [
            mock_resource({
                'helm.sh/hook': 'pre-install'
            }),
            mock_resource({
                'key': 'value'
            }),
            mock_resource({})
        ]

        unit = self.get_unit({})

        # Validate test resources excluded
        for resource in test_resources:
            self.assertFalse(unit.include_resource(resource))

        # Validate other resources included
        for resource in non_test_resources:
            self.assertTrue(unit.include_resource(resource))