/**
 * 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 const shuffleNodeChildren = (containerID) => {
  const container = document.querySelector(containerID);

  if (!container) {
    return;
  }

  const tmp = container.cloneNode(true);

  for (let i = tmp.children.length + 1; i--;) {
    tmp.appendChild(tmp.children[Math.random() * i | 0]);
  }

  container.parentNode.replaceChild(tmp, container);
};