support say stream with text (#1227)

* support say stream with text

* wip

* wip

* wip

* wip

* update verb  specification

lib/tasks/config.js

@@ -17,7 +17,8 @@ class TaskConfig extends Task {
       'actionHookDelayAction',
       'boostAudioSignal',
       'vad',
-      'ttsStream'
+      'ttsStream',
+      'autoStreamTts'
     ].forEach((k) => this[k] = this.data[k] || {});
 
     if ('notifyEvents' in this.data) {
@@ -117,6 +118,7 @@ class TaskConfig extends Task {
     if (this.hasTtsStream) {
       phrase.push(`${this.ttsStream.enable ? 'enable' : 'disable'} ttsStream`);
     }
+    if ('autoStreamTts' in this.data) phrase.push(`enable Say.stream value ${this.data.autoStreamTts ? 'on' : 'off'}`);
     return `${this.name}{${phrase.join(',')}}`;
   }
 
@@ -296,6 +298,11 @@ class TaskConfig extends Task {
       });
     }
 
+    if ('autoStreamTts' in this.data) {
+      this.logger.info(`Config: autoStreamTts set to ${this.data.autoStreamTts}`);
+      cs.autoStreamTts = this.data.autoStreamTts;
+    }
+
     if (this.hasFillerNoise) {
       const {enable, ...opts} = this.fillerNoise;
       this.logger.info({fillerNoise: this.fillerNoise}, 'Config: fillerNoise');
@@ -330,7 +337,9 @@ class TaskConfig extends Task {
       };
       this.logger.info({opts: this.gatherOpts}, 'Config: enabling ttsStream');
       cs.enableBackgroundTtsStream(this.sayOpts);
-    } else if (!this.ttsStream.enable) {
+    }
+    // only disable ttsStream if it specifically set to false
+    else if (this.ttsStream.enable === false) {
       this.logger.info('Config: disabling ttsStream');
       cs.disableTtsStream();
     }