# This Source Code Form is subject to the terms of the Mozilla Public
# License, v. 2.0. If a copy of the MPL was not distributed with this
# file, You can obtain one at http://mozilla.org/MPL/2.0/.

import os
import unittest
from configman import ConfigurationManager, Namespace
from mock import Mock, patch
from nose.plugins.attrib import attr

from socorro.external import MissingArgumentError, ResourceNotFound, \
                             ResourceUnavailable
from socorro.external.hbase import crash_data, crashstorage, hbase_client


_run_integration_tests = os.environ.get('RUN_HBASE_INTEGRATION_TESTS', False)
if _run_integration_tests in ('false', 'False', 'no', '0'):
    _run_integration_tests = False


if not _run_integration_tests:
    import logging
    logging.warning("Skipping HBase integration tests")

else:

    @attr(integration='hbase')  # for nosetests
    class TestIntegrationHBaseCrashData(unittest.TestCase):

        def setUp(self):
            self.config_manager = self._common_config_setup()

            with self.config_manager.context() as config:
                store = crashstorage.HBaseCrashStorage(config.hbase)

                # A complete crash report (raw, dump and processed)
                fake_raw_dump_1 = 'peter is a swede'
                fake_raw_dump_2 = 'lars is a norseman'
                fake_raw_dump_3 = 'adrian is a frenchman'
                fake_dumps = {'upload_file_minidump': fake_raw_dump_1,
                              'lars': fake_raw_dump_2,
                              'adrian': fake_raw_dump_3}
                fake_raw = {
                    'name': 'Peter',
                    'legacy_processing': 0,
                    'submitted_timestamp': '1234567890'
                }
                fake_processed = {
                    'name': 'Peter',
                    'uuid': '114559a5-d8e6-428c-8b88-1c1f22120314',
                    'completeddatetime': '2012-01-01T00:00:00'
                }

                store.save_raw_crash(
                    fake_raw,
                    fake_dumps,
                    '114559a5-d8e6-428c-8b88-1c1f22120314'
                )
                store.save_processed(fake_processed)

                # A non-processed crash report
                fake_raw = {
                    'name': 'Adrian',
                    'legacy_processing': 0,
                    'submitted_timestamp': '1234567890'
                }

                store.save_raw_crash(
                    fake_raw,
                    fake_dumps,
                    '58727744-12f5-454a-bcf5-f688af393821'
                )

        def tearDown(self):
            with self.config_manager.context() as config:
                connection = hbase_client.HBaseConnectionForCrashReports(
                    config.hbase.hbase_host,
                    config.hbase.hbase_port,
                    config.hbase.hbase_timeout
                )
                for row in connection.merge_scan_with_prefix(
                  'crash_reports', '', ['ids:ooid']):
                    index_row_key = row['_rowkey']
                    connection.client.deleteAllRow(
                      'crash_reports', index_row_key)
                # because of HBase's async nature, deleting can take time
                list(connection.iterator_for_all_legacy_to_be_processed())

        def _common_config_setup(self):
            mock_logging = Mock()
            required_config = Namespace()
            required_config.namespace('hbase')
            required_config.hbase = \
                crashstorage.HBaseCrashStorage.get_required_config()
            required_config.hbase.add_option('logger', default=mock_logging)
            config_manager = ConfigurationManager(
              [required_config],
              app_name='testapp',
              app_version='1.0',
              app_description='app description',
              values_source_list=[{'hbase': {
                'logger': mock_logging
              }}]
            )
            return config_manager

        @patch('socorro.external.postgresql.priorityjobs.Priorityjobs')
        def test_get(self, priorityjobs_mock):
            with self.config_manager.context() as config:
                service = crash_data.CrashData(config=config)
                params = {
                    'datatype': 'raw',
                    'uuid': '114559a5-d8e6-428c-8b88-1c1f22120314'
                }

                # Test 1: get a raw dump
                res_expected = ('peter is a swede',
                                'application/octet-stream')
                res = service.get(**params)

                self.assertEqual(res, res_expected)

                # Test 2: get a raw crash
                params['datatype'] = 'meta'
                res_expected = {
                    'name': 'Peter',
                    'legacy_processing': 0,
                    'submitted_timestamp': '1234567890'
                }
                res = service.get(**params)

                self.assertEqual(res, res_expected)

                # Test 3: get a processed crash
                params['datatype'] = 'processed'
                res_expected = {
                    'name': 'Peter',
                    'uuid': '114559a5-d8e6-428c-8b88-1c1f22120314',
                    'completeddatetime': '2012-01-01T00:00:00'
                }
                res = service.get(**params)

                self.assertEqual(res, res_expected)

                # Test 4: missing parameters
                self.assertRaises(
                    MissingArgumentError,
                    service.get
                )
                self.assertRaises(
                    MissingArgumentError,
                    service.get,
                    **{'uuid': '114559a5-d8e6-428c-8b88-1c1f22120314'}
                )

                # Test 5: crash cannot be found
                self.assertRaises(
                    ResourceNotFound,
                    service.get,
                    **{
                        'uuid': 'c44245f4-c93b-49b8-86a2-c15dc3a695cb',
                        'datatype': 'processed'
                    }
                )

                # Test 6: not yet available crash
                self.assertRaises(
                    ResourceUnavailable,
                    service.get,
                    **{
                        'uuid': '58727744-12f5-454a-bcf5-f688af393821',
                        'datatype': 'processed'
                    }
                )
                priorityjobs_mock.return_value.create.assert_called_once_with(
                    uuid='58727744-12f5-454a-bcf5-f688af393821'
                )

                # Test 7: raw crash cannot be found
                self.assertRaises(
                    ResourceNotFound,
                    service.get,
                    **{
                        'uuid': 'c44245f4-c93b-49b8-86a2-c15dc3a695cb',
                        'datatype': 'raw'
                    }
                )
