# Copyright 2015 Amazon.com, Inc. or its affiliates. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License"). You
# may not use this file except in compliance with the License. A copy of
# the License is located at
#
# http://aws.amazon.com/apache2.0/
#
# or in the "license" file accompanying this file. This file 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.


def inject_create_tags(event_name, class_attributes, **kwargs):
    """This injects a custom create_tags method onto the ec2 service resource

    This is needed because the resource model is not able to express
    creating multiple tag resources based on the fact you can apply a set
    of tags to multiple ec2 resources.
    """
    class_attributes['create_tags'] = create_tags


def create_tags(self, **kwargs):
    # Call the client method
    self.meta.client.create_tags(**kwargs)
    resources = kwargs.get('Resources', [])
    tags = kwargs.get('Tags', [])
    tag_resources = []

    # Generate all of the tag resources that just were created with the
    # preceding client call.
    for resource in resources:
        for tag in tags:
            # Add each tag from the tag set for each resource to the list
            # that is returned by the method.
            tag_resource = self.Tag(resource, tag['Key'], tag['Value'])
            tag_resources.append(tag_resource)
    return tag_resources