# Copyright (c) 2019, Red Hat, Inc.
# 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. 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.


def find_by_id(resource_id, elements):
    if elements:
        for i, element in enumerate(elements):
            if resource_id == element.id:
                return i, element
    return None, None


def add_by_id(resource, elements):
    if elements is not None:
        i, element = find_by_id(resource.id, elements)
        if element:
            elements[i] = resource
        else:
            elements.append(resource)
