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add support for retry logic and dtmf

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This commit is contained in:
Dave Horton
2022-01-26 14:01:38 -05:00
parent dcd6ddcbca
commit 8c00c89882
4 changed files with 102 additions and 26 deletions
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38
lib/tasks/gather.js
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@@ -16,14 +16,15 @@ class TaskGather extends Task {
this.preconditions = TaskPreconditions.Endpoint;
[
'finishOnKey', 'hints', 'input', 'numDigits',
'partialResultHook', 'bargein',
'finishOnKey', 'hints', 'input', 'numDigits', 'minDigits', 'maxDigits',
'interDigitTimeout', 'submitDigit', 'partialResultHook', 'bargein', 'dtmfBargein',
'retries', 'retryPromptTts', 'retryPromptUrl',
'speechTimeout', 'timeout', 'say', 'play'
].forEach((k) => this[k] = this.data[k]);
this.listenDuringPrompt = this.data.listenDuringPrompt === false ? false : true;
this.minBargeinWordCount = this.data.minBargeinWordCount || 1;
this.timeout = (this.timeout || 15) * 1000;
this.interim = this.partialResultCallback;
this.interim = this.partialResultCallback || this.bargein;
if (this.data.recognizer) {
const recognizer = this.data.recognizer;
this.vendor = recognizer.vendor;
@@ -119,7 +120,7 @@ class TaskGather extends Task {
.catch(() => {/*already logged error */});
}
if (this.input.includes('digits')) {
if (this.input.includes('digits') || this.dtmfBargein) {
ep.on('dtmf', this._onDtmf.bind(this, cs, ep));
}
@@ -145,12 +146,28 @@ class TaskGather extends Task {
_onDtmf(cs, ep, evt) {
this.logger.debug(evt, 'TaskGather:_onDtmf');
if (evt.dtmf === this.finishOnKey) this._resolve('dtmf-terminator-key');
clearTimeout(this.interDigitTimer);
let resolved = false;
if (this.dtmfBargein) this._killAudio(cs);
if (evt.dtmf === this.finishOnKey) {
resolved = true;
this._resolve('dtmf-terminator-key');
}
else {
this.digitBuffer += evt.dtmf;
if (this.digitBuffer.length === this.numDigits) this._resolve('dtmf-num-digits');
const len = this.digitBuffer.length;
if (len === this.numDigits || len === this.maxDigits) {
resolved = true;
this._resolve('dtmf-num-digits');
}
}
if (!resolved && this.interDigitTimeout > 0 && this.digitBuffer.length >= this.minDigits) {
/* start interDigitTimer */
const ms = this.interDigitTimeout * 1000;
this.logger.debug(`starting interdigit timer of ${ms}`);
this.interDigitTimer = setTimeout(() => this._resolve('dtmf-interdigit-timeout'), ms);
}
this._killAudio(cs);
}
async _initSpeech(cs, ep) {
@@ -216,7 +233,7 @@ class TaskGather extends Task {
ep.startTranscription({
vendor: this.vendor,
locale: this.language,
interim: this.partialResultCallback || this.bargein,
interim: this.interim,
}).catch((err) => {
const {writeAlerts, AlertType} = this.cs.srf.locals;
this.logger.error(err, 'TaskGather:_startTranscribing error');
@@ -280,7 +297,7 @@ class TaskGather extends Task {
transcript: evt.Text
}
]
};
}
}
}
if (evt.is_final) this._resolve('speech', evt);
@@ -318,7 +335,8 @@ class TaskGather extends Task {
this._clearTimer();
if (reason.startsWith('dtmf')) {
await this.performAction({digits: this.digitBuffer, reason: 'dtmfDetected'});
if (this.parentTask) this.parentTask.emit('dtmf-collected', {reason, digits: this.digitBuffer});
else await this.performAction({digits: this.digitBuffer, reason: 'dtmfDetected'});
}
else if (reason.startsWith('speech')) {
if (this.parentTask) this.parentTask.emit('transcription', evt);