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1/*
2 * Copyright (c) 2022 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 media from '@ohos.multimedia.media'
17import Logger from '../model/Logger'
18
19let audioConfig = {
20    audioSourceType: 1,
21    audioEncoder: 3,
22    audioEncodeBitRate: 22050,
23    audioSampleRate: 22050,
24    numberOfChannels: 2,
25    format: 6,
26    uri: ''
27}
28
29export default class RecordModel {
30    private tag: string = 'qlw RecordModel'
31    private audioRecorder: media.AudioRecorder = undefined
32
33    initAudioRecorder(handleStateChange: () => void) {
34        this.release();
35        this.audioRecorder = media.createAudioRecorder()
36        Logger.info(this.tag, 'create audioRecorder success')
37        this.audioRecorder.on('prepare', () => {
38            Logger.info(this.tag, 'setCallback  prepare case callback is called')
39            this.audioRecorder.start()
40        })
41        this.audioRecorder.on('start', () => {
42            Logger.info(this.tag, 'setCallback start case callback is called')
43            handleStateChange()
44        })
45        this.audioRecorder.on('stop', () => {
46            Logger.info(this.tag, 'audioRecorder stop called')
47            this.audioRecorder.release()
48        })
49        this.audioRecorder.on('pause', () => {
50            Logger.info(this.tag, 'audioRecorder pause finish')
51            handleStateChange()
52        })
53        this.audioRecorder.on('resume', () => {
54            Logger.info(this.tag, 'audioRecorder resume finish')
55            handleStateChange()
56        })
57    }
58
59    release() {
60        if (typeof (this.audioRecorder) !== `undefined`) {
61            Logger.info(this.tag, 'audioRecorder  release')
62            this.audioRecorder.release()
63            this.audioRecorder = undefined
64        }
65    }
66
67    startRecorder(pathName: string) {
68        Logger.info(this.tag, `startRecorder, pathName = ${pathName}`)
69        if (typeof (this.audioRecorder) !== 'undefined') {
70            Logger.info(this.tag, 'start prepare')
71            audioConfig.uri = pathName
72            this.audioRecorder.prepare(audioConfig)
73        } else {
74            Logger.error(this.tag, 'case failed, audioRecorder is null')
75        }
76    }
77
78    pause() {
79        Logger.info(this.tag, 'audioRecorder pause called')
80        if (typeof (this.audioRecorder) !== `undefined`) {
81            this.audioRecorder.pause()
82        }
83    }
84
85    resume() {
86        Logger.info(this.tag, 'audioRecorder resume called')
87        if (typeof (this.audioRecorder) !== `undefined`) {
88            this.audioRecorder.resume()
89        }
90    }
91
92    finish() {
93        if (typeof (this.audioRecorder) !== `undefined`) {
94            this.audioRecorder.stop()
95        }
96    }
97}