# Copyright 2010 New Relic, Inc.
#
# 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 newrelic.api.datastore_trace import wrap_datastore_trace
from newrelic.api.function_trace import wrap_function_trace

_pymongo_client_methods = ('save', 'insert', 'update', 'drop', 'remove',
    'find_one', 'find', 'count', 'create_index', 'ensure_index',
    'drop_indexes', 'drop_index', 'reindex', 'index_information',
    'options', 'group', 'rename', 'distinct', 'map_reduce',
    'inline_map_reduce', 'find_and_modify', 'initialize_unordered_bulk_op',
    'initialize_ordered_bulk_op', 'bulk_write', 'insert_one', 'insert_many',
    'replace_one', 'update_one', 'update_many', 'delete_one', 'delete_many',
    'find_raw_batches', 'parallel_scan', 'create_indexes', 'list_indexes',
    'aggregate', 'aggregate_raw_batches', 'find_one_and_delete',
    'find_one_and_replace', 'find_one_and_update')


def instrument_pymongo_connection(module):
    # Must name function explicitly as pymongo overrides the
    # __getattr__() method in a way that breaks introspection.

    rollup = ('Datastore/all', 'Datastore/MongoDB/all')

    wrap_function_trace(module, 'Connection.__init__',
            name='%s:Connection.__init__' % module.__name__,
            terminal=True, rollup=rollup)


def instrument_pymongo_mongo_client(module):
    # Must name function explicitly as pymongo overrides the
    # __getattr__() method in a way that breaks introspection.

    rollup = ('Datastore/all', 'Datastore/MongoDB/all')

    wrap_function_trace(module, 'MongoClient.__init__',
            name='%s:MongoClient.__init__' % module.__name__,
            terminal=True, rollup=rollup)


def instrument_pymongo_collection(module):
    def _collection_name(collection, *args, **kwargs):
        return collection.name

    for name in _pymongo_client_methods:
        if hasattr(module.Collection, name):
            wrap_datastore_trace(module.Collection, name, product='MongoDB',
                    target=_collection_name, operation=name)