# Copyright (c) 2015 Telefonica I+D.

# 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 json

from oslo_config import cfg
from oslo_utils import timeutils

from murano.api.v1 import templates
from murano.db import models
import murano.tests.unit.api.base as tb
import murano.tests.unit.utils as test_utils

CONF = cfg.CONF


class TestEnvTemplateApi(tb.ControllerTest, tb.MuranoApiTestCase):
    def setUp(self):
        super(TestEnvTemplateApi, self).setUp()
        self.controller = templates.Controller()
        self.uuids = ['env_template_id', 'other', 'network_id',
                      'environment_id', 'session_id']
        self.mock_uuid = self._stub_uuid(self.uuids)

    def test_list_empty_env_templates(self):
        """Check that with no templates an empty list is returned."""
        self._set_policy_rules(
            {'list_env_templates': '@'}
        )
        self.expect_policy_check('list_env_templates')

        req = self._get('/templates')
        result = req.get_response(self.api)
        self.assertEqual({'templates': []}, json.loads(result.body))

    def test_create_env_templates(self):
        """Create an template, test template.show()."""
        self._set_policy_rules(
            {'list_env_templates': '@',
             'create_env_template': '@',
             'show_env_template': '@'}
        )
        self.expect_policy_check('create_env_template')

        fake_now = timeutils.utcnow()
        timeutils.utcnow.override_time = fake_now

        expected = {'tenant_id': self.tenant,
                    'id': 'env_template_id',
                    'name': 'mytemp',
                    'version': 0,
                    'created': timeutils.isotime(fake_now)[:-1],
                    'updated': timeutils.isotime(fake_now)[:-1]}

        body = {'name': 'mytemp'}
        req = self._post('/templates', json.dumps(body))
        result = req.get_response(self.api)

        self.assertEqual(expected, json.loads(result.body))

        # Reset the policy expectation
        self.expect_policy_check('list_env_templates')

        req = self._get('/templates')
        result = req.get_response(self.api)
        self.assertEqual(200, result.status_code)
        self.assertEqual({'templates': [expected]}, json.loads(result.body))

        expected['services'] = []

        self.expect_policy_check('show_env_template',
                                 {'env_template_id': self.uuids[0]})
        req = self._get('/templates/%s' % self.uuids[0])
        result = req.get_response(self.api)
        self.assertEqual(expected, json.loads(result.body))

    def test_illegal_template_name_create(self):
        """Check that an illegal temp name results in an HTTPClientError."""
        self._set_policy_rules(
            {'list_env_templates': '@',
             'create_env_template': '@',
             'show_env_template': '@'}
        )
        self.expect_policy_check('create_env_template')

        body = {'name': 'my+#temp'}
        req = self._post('/templates', json.dumps(body))
        result = req.get_response(self.api)
        self.assertEqual(400, result.status_code)

    def test_too_long_template_name_create(self):
        """Check that a long template name results in an HTTPBadResquest."""
        self._set_policy_rules(
            {'list_env_templates': '@',
             'create_env_template': '@',
             'show_env_template': '@'}
        )
        self.expect_policy_check('create_env_template')

        body = {'name': 'a' * 256}
        req = self._post('/templates', json.dumps(body))
        result = req.get_response(self.api)
        self.assertEqual(400, result.status_code)
        result_msg = result.text.replace('\n', '')
        self.assertIn('Environment Template name should be 255 characters '
                      'maximum',
                      result_msg)

    def test_mallformed_body(self):
        """Check that an illegal temp name results in an HTTPClientError."""
        self._set_policy_rules(
            {'create_env_template': '@'}
        )
        self.expect_policy_check('create_env_template')

        body = {'invalid': 'test'}
        req = self._post('/templates', json.dumps(body))
        result = req.get_response(self.api)
        self.assertEqual(400, result.status_code)

    def test_missing_env_template(self):
        """Check that a missing environment template
        results in an HTTPNotFound.
        """
        self._set_policy_rules(
            {'show_env_template': '@'}
        )
        self.expect_policy_check('show_env_template',
                                 {'env_template_id': 'no-such-id'})

        req = self._get('/templates/no-such-id')
        result = req.get_response(self.api)
        self.assertEqual(404, result.status_code)

    def test_update_env_template(self):
        """Check that environment rename works."""
        self._set_policy_rules(
            {'show_env_template': '@',
             'update_env_template': '@'}
        )
        self.expect_policy_check('update_env_template',
                                 {'env_template_id': '12345'})

        fake_now = timeutils.utcnow()
        timeutils.utcnow.override_time = fake_now

        expected = dict(
            id='12345',
            name='my-temp',
            version=0,
            created=fake_now,
            updated=fake_now,
            tenant_id=self.tenant,
            description={
                'name': 'my-temp',
                '?': {'id': '12345'}
            }
        )
        e = models.EnvironmentTemplate(**expected)
        test_utils.save_models(e)

        fake_now = timeutils.utcnow()
        timeutils.utcnow.override_time = fake_now

        del expected['description']
        expected['services'] = []
        expected['name'] = 'renamed_temp'
        expected['updated'] = fake_now

        body = {
            'name': 'renamed_temp'
        }
        req = self._put('/templates/12345', json.dumps(body))
        result = req.get_response(self.api)
        self.assertEqual(200, result.status_code)

        self.expect_policy_check('show_env_template',
                                 {'env_template_id': '12345'})
        req = self._get('/templates/12345')
        result = req.get_response(self.api)
        self.assertEqual(200, result.status_code)

        expected['created'] = timeutils.isotime(expected['created'])[:-1]
        expected['updated'] = timeutils.isotime(expected['updated'])[:-1]

        self.assertEqual(expected, json.loads(result.body))

    def test_delete_env_templates(self):
        """Test that environment deletion results in the correct rpc call."""
        self._set_policy_rules(
            {'delete_env_template': '@'}
        )
        self.expect_policy_check(
            'delete_env_template', {'env_template_id': '12345'}
        )

        fake_now = timeutils.utcnow()
        expected = dict(
            id='12345',
            name='my-temp',
            version=0,
            created=fake_now,
            updated=fake_now,
            tenant_id=self.tenant,
            description={
                'name': 'my-temp',
                '?': {'id': '12345'}
            }
        )
        e = models.EnvironmentTemplate(**expected)
        test_utils.save_models(e)

        req = self._delete('/templates/12345')
        result = req.get_response(self.api)

        # Should this be expected behavior?
        self.assertEqual('', result.body)
        self.assertEqual(200, result.status_code)

    def test_create_env_templates_with_applications(self):
        """Create an template, test template.show()."""
        self._set_policy_rules(
            {'list_env_templates': '@',
             'create_env_template': '@',
             'show_env_template': '@'}
        )
        self.expect_policy_check('create_env_template')

        fake_now = timeutils.utcnow()
        timeutils.utcnow.override_time = fake_now
        expected = {'tenant_id': self.tenant,
                    'id': self.uuids[0],
                    'name': 'env_template_name',
                    'version': 0,
                    'created': timeutils.isotime(fake_now)[:-1],
                    'updated': timeutils.isotime(fake_now)[:-1]}

        services = [
            {
                "instance": {
                    "assignFloatingIp": "true",
                    "keyname": "mykeyname",
                    "image": "cloud-fedora-v3",
                    "flavor": "m1.medium",
                    "?": {
                        "type": "io.murano.resources.Linux",
                        "id": "ef984a74-29a4-45c0-b1dc-2ab9f075732e"
                    }
                },
                "name": "orion",
                "port": "8080",
                "?": {
                    "type": "io.murano.apps.apache.Tomcat",
                    "id": "54cea43d-5970-4c73-b9ac-fea656f3c722"
                }
            }
        ]
        expected['services'] = services

        body = {
            "name": "env_template_name",
            "services": [
                {
                    "instance": {
                        "assignFloatingIp": "true",
                        "keyname": "mykeyname",
                        "image": "cloud-fedora-v3",
                        "flavor": "m1.medium",
                        "?": {
                            "type": "io.murano.resources.Linux",
                            "id": "ef984a74-29a4-45c0-b1dc-2ab9f075732e"
                        }
                    },
                    "name": "orion",
                    "port": "8080",
                    "?": {
                        "type": "io.murano.apps.apache.Tomcat",
                        "id": "54cea43d-5970-4c73-b9ac-fea656f3c722"
                    }
                }
            ]
        }

        req = self._post('/templates', json.dumps(body))
        result = req.get_response(self.api)
        self.assertEqual(expected, json.loads(result.body))

        # Reset the policy expectation
        self.expect_policy_check('list_env_templates')

        req = self._get('/templates')
        result = req.get_response(self.api)
        del expected['services']
        self.assertEqual(200, result.status_code)
        self.assertEqual({'templates': [expected]}, json.loads(result.body))

        # Reset the policy expectation
        self.expect_policy_check('show_env_template',
                                 {'env_template_id': self.uuids[0]})
        expected['services'] = services
        req = self._get('/templates/%s' % self.uuids[0])
        result = req.get_response(self.api)
        self.assertEqual(expected, json.loads(result.body))

    def test_add_application_to_template(self):
        """Create an template, test template.show()."""
        self._set_policy_rules(
            {'create_env_template': '@',
             'add_application': '@'}
        )
        self.expect_policy_check('create_env_template')

        fake_now = timeutils.utcnow()
        timeutils.utcnow.override_time = fake_now
        services = [
            {
                "instance": {
                    "assignFloatingIp": "true",
                    "keyname": "mykeyname",
                    "image": "cloud-fedora-v3",
                    "flavor": "m1.medium",
                    "?": {
                        "type": "io.murano.resources.Linux",
                        "id": "ef984a74-29a4-45c0-b1dc-2ab9f075732e"
                    }
                },
                "name": "orion",
                "port": "8080",
                "?": {
                    "type": "io.murano.apps.apache.Tomcat",
                    "id": "54cea43d-5970-4c73-b9ac-fea656f3c722"
                }
            }
        ]

        body = {
            "name": "template_name",
        }

        req = self._post('/templates', json.dumps(body))
        result = req.get_response(self.api)
        self.assertEqual(200, result.status_code)

        body = services
        req = self._post('/templates/%s/services' % self.uuids[0],
                         json.dumps(body))
        result = req.get_response(self.api)

        self.assertEqual(200, result.status_code)
        self.assertEqual(services, json.loads(result.body))
        req = self._get('/templates/%s/services' % self.uuids[0])
        result = req.get_response(self.api)
        self.assertEqual(200, result.status_code)
        self.assertEqual(1, len(json.loads(result.body)))

        service_no_instance = [
            {
                "instance": "ef984a74-29a4-45c0-b1dc-2ab9f075732e",
                "name": "tomcat",
                "port": "8080",
                "?": {
                    "type": "io.murano.apps.apache.Tomcat",
                    "id": "54cea43d-5970-4c73-b9ac-fea656f3c722"
                }
            }
        ]

        req = self._post('/templates/%s/services' % self.uuids[0],
                         json.dumps(service_no_instance))
        result = req.get_response(self.api)
        self.assertEqual(200, result.status_code)

        req = self._get('/templates/%s/services' % self.uuids[0])
        result = req.get_response(self.api)
        self.assertEqual(200, result.status_code)
        self.assertEqual(2, len(json.loads(result.body)))

    def test_delete_application_in_template(self):
        """Create an template, test template.show()."""
        self._set_policy_rules(
            {'create_env_template': '@',
             'delete_env_application': '@'}
        )
        self.expect_policy_check('create_env_template')

        fake_now = timeutils.utcnow()
        timeutils.utcnow.override_time = fake_now

        body = {
            "name": "mytemplate",
            "services": [
                {
                    "name": "tomcat",
                    "port": "8080",
                    "?": {
                        "type": "io.murano.apps.apache.Tomcat",
                        "id": "54cea43d-5970-4c73-b9ac-fea656f3c722"
                    }
                }
            ]
        }

        req = self._post('/templates', json.dumps(body))
        result = req.get_response(self.api)
        self.assertEqual(200, result.status_code)

        req = self._get('/templates/%s/services' % self.uuids[0])
        result = req.get_response(self.api)
        self.assertEqual(200, result.status_code)
        self.assertEqual(1, len(json.loads(result.body)))

        service_id = '54cea43d-5970-4c73-b9ac-fea656f3c722'
        req = self._get('/templates/' + self.uuids[0] +
                        '/services/' + service_id)
        result = req.get_response(self.api)
        self.assertEqual(200, result.status_code)

        req = self._delete('/templates/' + self.uuids[0] +
                           '/services/' + service_id)
        result = req.get_response(self.api)
        self.assertEqual(200, result.status_code)

        req = self._get('/templates/' + self.uuids[0] +
                        '/services/' + service_id)
        result = req.get_response(self.api)
        self.assertEqual(404, result.status_code)

    def test_create_environment(self):
        """Test that environment is created, session configured."""

        opts = [
            cfg.StrOpt('config_dir'),
            cfg.StrOpt('config_file', default='murano.conf'),
            cfg.StrOpt('project', default='murano'),
        ]
        CONF.register_opts(opts)
        self._set_policy_rules(
            {'create_env_template': '@',
             'create_environment': '@'}
        )

        self._create_env_template_no_service()
        body_env = {'name': 'my_template'}

        self.expect_policy_check('create_environment',
                                 {'env_template_id': self.uuids[0]})
        req = self._post('/templates/%s/create-environment' %
                         self.uuids[0], json.dumps(body_env))
        session_result = req.get_response(self.api)
        self.assertEqual(200, session_result.status_code)
        self.assertIsNotNone(session_result)
        body_returned = json.loads(session_result.body)
        self.assertEqual(self.uuids[4], body_returned['session_id'])
        self.assertEqual(self.uuids[3], body_returned['environment_id'])

    def test_create_env_with_template_no_services(self):
        """Test that environment is created and session with template
        without services.
        """
        opts = [
            cfg.StrOpt('config_dir'),
            cfg.StrOpt('config_file', default='murano.conf'),
            cfg.StrOpt('project', default='murano'),
        ]
        CONF.register_opts(opts)
        self._set_policy_rules(
            {'create_env_template': '@',
             'create_environment': '@'}
        )
        self._create_env_template_no_service()

        self.expect_policy_check('create_environment',
                                 {'env_template_id': self.uuids[0]})
        body = {'name': 'my_template'}

        req = self._post('/templates/%s/create-environment' %
                         self.uuids[0], json.dumps(body))
        result = req.get_response(self.api)
        self.assertIsNotNone(result)
        self.assertEqual(200, result.status_code)
        body_returned = json.loads(result.body)
        self.assertEqual(self.uuids[4], body_returned['session_id'])
        self.assertEqual(self.uuids[3], body_returned['environment_id'])

    def test_mallformed_env_body(self):
        """Check that an illegal temp name results in an HTTPClientError."""
        self._set_policy_rules(
            {'create_env_template': '@',
             'create_environment': '@'}
        )
        self. _create_env_template_no_service()

        self.expect_policy_check('create_environment',
                                 {'env_template_id': self.uuids[0]})
        body = {'invalid': 'test'}
        req = self._post('/templates/%s/create-environment' %
                         self.uuids[0], json.dumps(body))
        result = req.get_response(self.api)
        self.assertEqual(400, result.status_code)

    def test_create_env_notexisting_templatebody(self):
        """Check that an illegal temp name results in an HTTPClientError."""
        self._set_policy_rules(
            {'create_environment': '@'}
        )
        env_template_id = 'noexisting'
        self.expect_policy_check('create_environment',
                                 {'env_template_id': env_template_id})

        body = {'name': 'test'}
        req = self._post('/templates/%s/create-environment'
                         % env_template_id, json.dumps(body))
        result = req.get_response(self.api)
        self.assertEqual(404, result.status_code)

    def _create_env_template_no_service(self):
        self.expect_policy_check('create_env_template')
        fake_now = timeutils.utcnow()
        timeutils.utcnow.override_time = fake_now

        req = self._post('/templates', json.dumps({'name': 'name'}))
        result = req.get_response(self.api)
        self.assertEqual(200, result.status_code)

    def _create_env_template_services(self):
        fake_now = timeutils.utcnow()
        timeutils.utcnow.override_time = fake_now

        self.expect_policy_check('create_env_template')

        fake_now = timeutils.utcnow()
        timeutils.utcnow.override_time = fake_now
        body = {
            "name": "env_template_name",
            "services": [
                {
                    "instance": {
                        "assignFloatingIp": "true",
                        "keyname": "mykeyname",
                        "image": "cloud-fedora-v3",
                        "flavor": "m1.medium",
                        "?": {
                            "type": "io.murano.resources.Linux",
                            "id": "ef984a74-29a4-45c0-b1dc-2ab9f075732e"
                        }
                    },
                    "name": "orion",
                    "port": "8080",
                    "?": {
                        "type": "io.murano.apps.apache.Tomcat",
                        "id": "54cea43d-5970-4c73-b9ac-fea656f3c722"
                    }
                }
            ]
        }

        req = self._post('/templates', json.dumps(body))
        req.get_response(self.api)
