1/**
2 * Copyright (c) 2024 Huawei Device Co., Ltd.
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at
6 *
7 *     http://www.apache.org/licenses/LICENSE-2.0
8 *
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
14 */
15export interface Callback {
16  (message:any):void
17}
18
19export class MessageManager {
20    callback:Callback
21    callbacks:Map<string,Callback> = new Map()
22
23    constructor() {
24
25    }
26
27   registerCallback(callback:Callback , type?:string) {
28    if (type == undefined) {
29      console.error('registerCallback callback set')
30      this.callback = callback
31      return
32    }
33    this.callbacks.set(type,callback)
34  }
35
36   notify(message:any, type?:string) {
37    if (type == undefined) {
38      this.callback(message)
39      return
40    }
41
42    let tmpCallback:Callback = this.callbacks.get(type)
43    if (tmpCallback === undefined) {
44      console.error('callbacks has no callback for type ' + type)
45      return
46    }
47    tmpCallback(message)
48  }
49
50   clear() {
51    this.callbacks.clear()
52    this.callback = null
53  }
54}