Bloombox/JS

/*
 * Copyright 2019, Momentum Ideas, Co.
 *
 * 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.
 */

/**
 * Bloombox Telemetry: State Manager
 *
 * @fileoverview Provides centralized RPC state management.
 */

/*global goog */

goog.provide('bloombox.util.generateUUID');


/**
 * Generate an RFC4122-compliant UUID.
 *
 * @return {string} String UUID.
 */
bloombox.util.generateUUID = function() {
  let uuid = '', i, random;
  for (i = 0; i < 32; i++) {
    random = Math.random() * 16 | 0;
    if (i === 8 || i === 12 || i === 16 || i === 20)
      uuid += '-';
    uuid += (i === 12 ? 4 : (i === 16 ? (random & 3 | 8) : random)
      ).toString(16);
  }
  return uuid.toUpperCase();
};