/**
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you 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.
 */
export function resourcesToHash(resources: any[], identifier: string = 'identifier') {
  const hash = {};

  resources.forEach(resource => hash[resource[identifier]] = resource);

  return hash;
}

export function idsToHashWithCurrentTimestamp(ids: string[]): { [id: string]: number } {
  const loadedAt = ids.reduce((entities: { [id: string]: number }, id: string) => {
    return Object.assign(entities, {
      [id]: Date.now()
    });
  }, {});

  return loadedAt;
}