"""
Copyright 2015 Hewlett-Packard

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
import unittest
from mock import Mock, patch

from freezer.apiclient import exceptions
from freezer.apiclient import jobs


class TestJobManager(unittest.TestCase):

    def setUp(self):
        self.mock_client = Mock()
        self.mock_response = Mock()
        self.mock_client.endpoint = 'http://testendpoint:9999'
        self.mock_client.auth_token = 'testtoken'
        self.headers = {'X-Auth-Token': 'testtoken'}
        self.mock_client.client_id = 'test_client_id_78900987'
        self.job_manager = jobs.JobManager(self.mock_client)

    @patch('freezer.apiclient.jobs.requests')
    def test_create(self, mock_requests):
        self.assertEqual('http://testendpoint:9999/v1/jobs/', self.job_manager.endpoint)
        self.assertEqual({'X-Auth-Token': 'testtoken'}, self.job_manager.headers)

    @patch('freezer.apiclient.jobs.requests')
    def test_create_ok(self, mock_requests):
        self.mock_response.status_code = 201
        self.mock_response.json.return_value = {'job_id': 'qwerqwer'}
        mock_requests.post.return_value = self.mock_response
        retval = self.job_manager.create({'job': 'metadata'})
        self.assertEqual('qwerqwer', retval)

    @patch('freezer.apiclient.jobs.json')
    @patch('freezer.apiclient.jobs.requests')
    def test_create_adds_client_id_if_not_provided(self, mock_requests, mock_json):
        self.mock_response.status_code = 201
        self.mock_response.json.return_value = {'job_id': 'qwerqwer'}
        mock_json.dumps.return_value = {'job': 'mocked'}
        mock_requests.post.return_value = self.mock_response

        retval = self.job_manager.create({'job': 'metadata'})

        mock_json.dumps.assert_called_with({'job': 'metadata',
                                            'client_id': 'test_client_id_78900987'})
        self.assertEqual('qwerqwer', retval)

    @patch('freezer.apiclient.jobs.json')
    @patch('freezer.apiclient.jobs.requests')
    def test_create_leaves_provided_client_id(self, mock_requests, mock_json):
        self.mock_response.status_code = 201
        self.mock_response.json.return_value = {'job_id': 'qwerqwer'}
        mock_json.dumps.return_value = {'job': 'mocked'}
        mock_requests.post.return_value = self.mock_response

        retval = self.job_manager.create({'job': 'metadata', 'client_id': 'parmenide'})

        mock_json.dumps.assert_called_with({'job': 'metadata',
                                            'client_id': 'parmenide'})
        self.assertEqual('qwerqwer', retval)

    @patch('freezer.apiclient.jobs.requests')
    def test_create_fail_when_api_return_error_code(self, mock_requests):
        self.mock_response.status_code = 500
        mock_requests.post.return_value = self.mock_response
        self.assertRaises(exceptions.ApiClientException, self.job_manager.create, {'job': 'metadata'})

    @patch('freezer.apiclient.jobs.requests')
    def test_delete_ok(self, mock_requests):
        self.mock_response.status_code = 204
        mock_requests.delete.return_value = self.mock_response
        retval = self.job_manager.delete('test_job_id')
        self.assertIsNone(retval)

    @patch('freezer.apiclient.jobs.requests')
    def test_delete_fail(self, mock_requests):
        self.mock_response.status_code = 500
        mock_requests.delete.return_value = self.mock_response
        self.assertRaises(exceptions.ApiClientException, self.job_manager.delete, 'test_job_id')

    @patch('freezer.apiclient.jobs.requests')
    def test_get_ok(self, mock_requests):
        self.mock_response.status_code = 200
        self.mock_response.json.return_value = {'job_id': 'qwerqwer'}
        mock_requests.get.return_value = self.mock_response
        retval = self.job_manager.get('test_job_id')
        self.assertEqual({'job_id': 'qwerqwer'}, retval)

    @patch('freezer.apiclient.jobs.requests')
    def test_get_fails_on_error_different_from_404(self, mock_requests):
        self.mock_response.status_code = 500
        mock_requests.get.return_value = self.mock_response
        self.assertRaises(exceptions.ApiClientException, self.job_manager.get, 'test_job_id')

    @patch('freezer.apiclient.jobs.requests')
    def test_get_none(self, mock_requests):
        self.mock_response.status_code = 404
        mock_requests.get.return_value = self.mock_response
        retval = self.job_manager.get('test_job_id')
        self.assertIsNone(retval)

    @patch('freezer.apiclient.jobs.requests')
    def test_list_ok(self, mock_requests):
        self.mock_response.status_code = 200
        job_list = [{'job_id_0': 'bomboloid'}, {'job_id_1': 'asdfasdf'}]
        self.mock_response.json.return_value = {'jobs': job_list}
        mock_requests.get.return_value = self.mock_response
        retval = self.job_manager.list()
        self.assertEqual(job_list, retval)

    @patch('freezer.apiclient.jobs.requests')
    def test_list_error(self, mock_requests):
        self.mock_response.status_code = 404
        job_list = [{'job_id_0': 'bomboloid'}, {'job_id_1': 'asdfasdf'}]
        self.mock_response.json.return_value = {'clients': job_list}
        mock_requests.get.return_value = self.mock_response
        self.assertRaises(exceptions.ApiClientException, self.job_manager.list)

    @patch('freezer.apiclient.jobs.requests')
    def test_update_ok(self, mock_requests):
        self.mock_response.status_code = 200
        self.mock_response.json.return_value = {
            "patch": {"status": "bamboozled"},
            "version": 12,
            "job_id": "d454beec-1f3c-4d11-aa1a-404116a40502"
        }
        mock_requests.patch.return_value = self.mock_response
        retval = self.job_manager.update('d454beec-1f3c-4d11-aa1a-404116a40502', {'status': 'bamboozled'})
        self.assertEqual(12, retval)

    @patch('freezer.apiclient.jobs.requests')
    def test_update_raise_MetadataUpdateFailure_when_api_return_error_code(self, mock_requests):
        self.mock_response.json.return_value = {
            "patch": {"status": "bamboozled"},
            "version": 12,
            "job_id": "d454beec-1f3c-4d11-aa1a-404116a40502"
        }
        self.mock_response.status_code = 404
        self.mock_response.text = '{"title": "Not Found","description":"No document found with ID d454beec-1f3c-4d11-aa1a-404116a40502x"}'
        mock_requests.patch.return_value = self.mock_response
        self.assertRaises(exceptions.ApiClientException, self.job_manager.update,
                          'd454beec-1f3c-4d11-aa1a-404116a40502', {'status': 'bamboozled'})


    @patch('freezer.apiclient.jobs.requests')
    def test_start_job_posts_proper_data(self, mock_requests):
        job_id = 'jobdfsfnqwerty1234'
        self.mock_response.status_code = 202
        self.mock_response.json.return_value = {'result': 'success'}
        mock_requests.post.return_value = self.mock_response
        # /v1/jobs/{job_id}/event

        endpoint = '{0}/v1/jobs/{1}/event'.format(self.mock_client.endpoint, job_id)
        data = {"start": None}
        retval = self.job_manager.start_job(job_id)
        self.assertEqual({'result': 'success'}, retval)

        args = mock_requests.post.call_args[0]
        kwargs = mock_requests.post.call_args[1]
        self.assertEquals(endpoint, args[0])
        self.assertEquals(data, json.loads(kwargs['data']))
        self.assertEquals(self.headers, kwargs['headers'])

    @patch('freezer.apiclient.jobs.requests')
    def test_start_job_raise_ApiClientException_when_api_return_error_code(self, mock_requests):
        job_id = 'jobdfsfnqwerty1234'
        self.mock_response.status_code = 500
        self.mock_response.json.return_value = {'result': 'success'}
        mock_requests.post.return_value = self.mock_response
        self.assertRaises(exceptions.ApiClientException, self.job_manager.start_job, job_id)

    @patch('freezer.apiclient.jobs.requests')
    def test_stop_job_posts_proper_data(self, mock_requests):
        job_id = 'jobdfsfnqwerty1234'
        self.mock_response.status_code = 202
        self.mock_response.json.return_value = {'result': 'success'}
        mock_requests.post.return_value = self.mock_response
        # /v1/jobs/{job_id}/event

        endpoint = '{0}/v1/jobs/{1}/event'.format(self.mock_client.endpoint, job_id)
        data = {"stop": None}
        retval = self.job_manager.stop_job(job_id)
        self.assertEqual({'result': 'success'}, retval)

        args = mock_requests.post.call_args[0]
        kwargs = mock_requests.post.call_args[1]
        self.assertEquals(endpoint, args[0])
        self.assertEquals(data, json.loads(kwargs['data']))
        self.assertEquals(self.headers, kwargs['headers'])

    @patch('freezer.apiclient.jobs.requests')
    def test_stop_job_raise_ApiClientException_when_api_return_error_code(self, mock_requests):
        job_id = 'jobdfsfnqwerty1234'
        self.mock_response.status_code = 500
        self.mock_response.json.return_value = {'result': 'success'}
        mock_requests.post.return_value = self.mock_response
        self.assertRaises(exceptions.ApiClientException, self.job_manager.start_job, job_id)

    @patch('freezer.apiclient.jobs.requests')
    def test_abort_job_posts_proper_data(self, mock_requests):
        job_id = 'jobdfsfnqwerty1234'
        self.mock_response.status_code = 202
        self.mock_response.json.return_value = {'result': 'success'}
        mock_requests.post.return_value = self.mock_response
        # /v1/jobs/{job_id}/event

        endpoint = '{0}/v1/jobs/{1}/event'.format(self.mock_client.endpoint, job_id)
        data = {"abort": None}
        retval = self.job_manager.abort_job(job_id)
        self.assertEqual({'result': 'success'}, retval)

        args = mock_requests.post.call_args[0]
        kwargs = mock_requests.post.call_args[1]
        self.assertEquals(endpoint, args[0])
        self.assertEquals(data, json.loads(kwargs['data']))
        self.assertEquals(self.headers, kwargs['headers'])

    @patch('freezer.apiclient.jobs.requests')
    def test_abort_job_raise_ApiClientException_when_api_return_error_code(self, mock_requests):
        job_id = 'jobdfsfnqwerty1234'
        self.mock_response.status_code = 500
        self.mock_response.json.return_value = {'result': 'success'}
        mock_requests.post.return_value = self.mock_response
        self.assertRaises(exceptions.ApiClientException, self.job_manager.abort_job, job_id)