# -*- coding: utf-8 -*-

# Copyright 2010 - 2017 RhodeCode GmbH and the AppEnlight project authors
#
# 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 appenlight.models import Datastores
from appenlight.models.services.base import BaseService
from appenlight.lib.enums import ReportType
from appenlight.lib.utils import es_index_name_limiter


class ReportStatService(BaseService):
    @classmethod
    def count_by_type(cls, report_type, resource_id, since_when):
        report_type = ReportType.key_from_value(report_type)

        index_names = es_index_name_limiter(start_date=since_when,
                              ixtypes=['reports'])

        es_query = {
            'aggs': {'reports': {'aggs': {
                'sub_agg': {'value_count': {'field': 'tags.group_id.values'}}},
                'filter': {'and': [{'terms': {'resource_id': [resource_id]}},
                                   {'exists': {
                                       'field': 'tags.group_id.values'}}]}}},
            'query': {'filtered': {'filter': {
                'and': [{'terms': {'resource_id': [resource_id]}},
                        {'terms': {'tags.type.values': [report_type]}},
                        {'range': {'timestamp': {
                            'gte': since_when}}}]}}}}

        if index_names:
            result = Datastores.es.search(body=es_query,
                                      index=index_names,
                                      doc_type='log',
                                      size=0)
            return result['aggregations']['reports']['sub_agg']['value']
        else:
            return 0