public close()

in src/sdk/Audio/SpeakerAudioDestination.ts [79:126]
46 lines of code
16 McCabe index (conditional complexity)

    public close(cb?: () => void, err?: (error: string) => void): void {
        this.privIsClosed = true;
        if (this.privSourceBuffer !== undefined) {
            this.handleSourceBufferUpdateEnd().then(() => {
                if (!!cb) {
                    cb();
                }
            }, (error: string): void => {
                if (!!err) {
                    err(error);
                }
            });
        } else if (this.privAudioOutputStream !== undefined && typeof window !== "undefined") {
            if ((this.privFormat.formatTag === AudioFormatTag.PCM || this.privFormat.formatTag === AudioFormatTag.MuLaw
                || this.privFormat.formatTag === AudioFormatTag.ALaw) && this.privFormat.hasHeader === false) {
                // tslint:disable-next-line:no-console
                console.warn(`Play back is not supported for raw PCM, mulaw or alaw format without header.`);
                if (!!this.onAudioEnd) {
                    this.onAudioEnd(this);
                }
            } else {
                let receivedAudio = new ArrayBuffer(this.privBytesReceived);
                this.privAudioOutputStream.read(receivedAudio).then((_: number): void => {
                    receivedAudio = SynthesisAdapterBase.addHeader(receivedAudio, this.privFormat);
                    const audioBlob = new Blob([receivedAudio], { type: AudioFormatToMimeType[this.privFormat.formatTag] });
                    this.privAudio.src = window.URL.createObjectURL(audioBlob);
                    this.notifyPlayback().then(() => {
                        if (!!cb) {
                            cb();
                        }
                    }, (error: string): void => {
                        if (!!err) {
                            err(error);
                        }
                    });
                }, (error: string): void => {
                    if (!!err) {
                        err(error);
                    }
                });
            }
        } else {
            // unsupported format, call onAudioEnd directly.
            if (!!this.onAudioEnd) {
                this.onAudioEnd(this);
            }
        }
    }