/*
 * Copyright (c) 2022 Huawei Device Co., Ltd.
 * 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.
 */

import { Log } from '../../utils/Log';
import { BroadCast } from '../../utils/BroadCast';
import { Constants } from './Constants';

const TAG: string = 'common_BroadCastManager';

export class BroadCastManager {
  // The global BroadCast of the application process. Event registration and destruction should be paired
  private appBroadCast: BroadCast;

  private constructor() {
    Log.info(TAG, 'constructor');
    this.appBroadCast = new BroadCast();
  }

  public static getInstance(): BroadCastManager {
    if (AppStorage.get(Constants.APP_KEY_EVENT_BUS) == null) {
      AppStorage.SetOrCreate(Constants.APP_KEY_EVENT_BUS, new BroadCastManager());
    }
    return AppStorage.get(Constants.APP_KEY_EVENT_BUS);
  }

  public getBroadCast(): BroadCast {
    return this.appBroadCast;
  }
}