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1/*
2 * Copyright (c) 2022-2023 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 */
15
16import wifi from '@ohos.wifiManager'
17import Logger from '../model/Logger'
18
19export default class WifiDataSource {
20  private listeners: DataChangeListener[] = []
21  private dataArray: wifi.WifiScanInfo[] = []
22
23  constructor(data: wifi.WifiScanInfo[]) {
24    this.dataArray = data
25  }
26
27  public totalCount(): number {
28    return this.dataArray.length
29  }
30
31  public getData(index: number): wifi.WifiScanInfo {
32    return this.dataArray[index]
33  }
34
35  public addData(index: number, data: wifi.WifiScanInfo): void {
36    this.dataArray.splice(index, 0, data)
37    this.notifyDataAdd(index)
38  }
39
40  public pushData(data: wifi.WifiScanInfo): void {
41    this.dataArray.push(data)
42    this.notifyDataAdd(this.dataArray.length - 1)
43  }
44
45  registerDataChangeListener(listener: DataChangeListener): void {
46    if (this.listeners.indexOf(listener) < 0) {
47      Logger.info('add listener')
48      this.listeners.push(listener)
49    }
50  }
51
52  unregisterDataChangeListener(listener: DataChangeListener): void {
53    const POS = this.listeners.indexOf(listener)
54    if (POS >= 0) {
55      Logger.info('remove listener')
56      this.listeners.splice(POS, 1)
57    }
58  }
59
60  notifyDataReload(): void {
61    this.listeners.forEach(listener => {
62      listener.onDataReloaded()
63    })
64  }
65
66  notifyDataAdd(index: number): void {
67    this.listeners.forEach(listener => {
68      listener.onDataAdd(index)
69    })
70  }
71
72  notifyDataChange(index: number): void {
73    this.listeners.forEach(listener => {
74      listener.onDataChange(index)
75    })
76  }
77
78  notifyDataDelete(index: number): void {
79    this.listeners.forEach(listener => {
80      listener.onDataDelete(index)
81    })
82  }
83
84  notifyDataMove(from: number, to: number): void {
85    this.listeners.forEach(listener => {
86      listener.onDataMove(from, to)
87    })
88  }
89}