modify tts and say task to track current playback id and match against start and stop events

lib/tasks/say.js

@@ -264,7 +264,6 @@ class TaskSay extends TtsTask {
           await this.playToConfMember(ep, memberId, confName, confUuid, filepath[segment]);
         }
         else {
-          let playbackId;
           const isStreaming = filepath[segment].startsWith('say:{');
           if (isStreaming) {
             const arr = /^say:\{.*\}\s*(.*)$/.exec(filepath[segment]);
@@ -283,10 +282,10 @@ class TaskSay extends TtsTask {
                * If we got a playback id on both the start and stop events, and they don't match,
                * then we must have received a playback-stop event for an earlier play request.
                */
-              const unmatchedResponse = (!!playbackId && !!evt.variable_tts_playback_id) &&
+              // eslint-disable-next-line max-len
-                evt.variable_tts_playback_id !== playbackId;
+              const unmatchedResponse = (!!this.playbackId && !!evt.variable_tts_playback_id) && evt.variable_tts_playback_id !== this.playbackId;
               if (unmatchedResponse) {
-                this.logger.info({currentPlaybackId: playbackId, stopPPlaybackId: evt.variable_tts_playback_id},
+                this.logger.info({currentPlaybackId: this.playbackId, stopPlaybackId: evt.variable_tts_playback_id},
                   'Say:exec discarding playback-stop for earlier play');
                 ep.once('playback-stop',  this._boundOnPlaybackStop);
 
@@ -358,9 +357,16 @@ class TaskSay extends TtsTask {
           };
           this._boundOnPlaybackStop = onPlaybackStop.bind(this);
 
-          ep.once('playback-start', (evt) => {
+          const onPlaybackStart = (evt) => {
             try {
-              playbackId = evt.variable_tts_playback_id;
+              // eslint-disable-next-line max-len
+              const unmatchedResponse = (!!this.playbackId && !!evt.variable_tts_playback_id) && evt.variable_tts_playback_id !== this.playbackId;
+              if (unmatchedResponse) {
+                this.logger.info({currentPlaybackId: this.playbackId, stopPlaybackId: evt.variable_tts_playback_id},
+                  'Say:exec playback-start - unmatched playback_id');
+                ep.once('playback-start',  this._boundOnPlaybackStart);
+                return;
+              }
               this.logger.debug({evt},
                 `Say got playback-start ${evt.variable_tts_playback_id ? evt.variable_tts_playback_id : ''}`);
               if (this.otelSpan) {
@@ -374,8 +380,11 @@ class TaskSay extends TtsTask {
             } catch (err) {
               this.logger.info({err}, 'Error handling playback-start event');
             }
-          });
+          };
+          this._boundOnPlaybackStart = onPlaybackStart.bind(this);
+
           ep.once('playback-stop',  this._boundOnPlaybackStop);
+          ep.once('playback-start',  this._boundOnPlaybackStart);
 
           // wait for playback-stop event received to confirm if the playback is successful
           this._playPromise = new Promise((resolve, reject) => {

lib/tasks/tts-task.js

@@ -3,6 +3,16 @@ const { TaskPreconditions } = require('../utils/constants');
 const { SpeechCredentialError } = require('../utils/error');
 const dbUtils = require('../utils/db-utils');
 
+const extractPlaybackId = (str) => {
+  // Match say:{...} and capture the content inside braces
+  const match = str.match(/say:\{([^}]*)\}/);
+  if (!match) return null;
+
+  // Look for playback_id=value within the captured content
+  const playbackMatch = match[1].match(/playback_id=([^,]*)/);
+  return playbackMatch ? playbackMatch[1] : null;
+};
+
 class TtsTask extends Task {
 
   constructor(logger, data, parentTask) {
@@ -309,7 +319,8 @@ class TtsTask extends Task {
             }
           }
           else {
-            this.logger.debug('Say: a streaming tts api will be used');
+            this.playbackId = extractPlaybackId(filePath);
+            this.logger.debug(`Say: a streaming tts api will be used, playback_id=${this.playbackId}`);
             const modifiedPath = filePath.replace('say:{', `say:{session-uuid=${ep.uuid},`);
             return modifiedPath;
           }