Feat/dialogflow cx (#7)

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* logging

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* update docker env to latest freeswitch

* wip

* lint

* wip

* support dialogflowcx

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---------

Co-authored-by: Dave Horton <daveh@beachdognet.com>

lib/tasks/dialogflow/intent.js

@@ -3,20 +3,44 @@ class Intent {
     this.logger = logger;
     this.evt = evt;
 
-    this.logger.debug({evt}, 'intent');
-    this.dtmfRequest = checkIntentForDtmfEntry(logger, evt);
+    this.qr = this.isCX ? evt.detect_intent_response.query_result : evt.query_result;
+    this.dtmfRequest = this._checkIntentForDtmfEntry();
+  }
+
+  get response_id() {
+    return this.isCX ? this.evt.detect_intent_response.response_id : this.evt.response_id;
   }
 
   get isEmpty() {
-    return this.evt.response_id.length === 0;
+    return !(this.response_id?.length > 0);
   }
 
   get fulfillmentText() {
-    return this.evt.query_result.fulfillment_text;
+    if (this.isCX) {
+      if (this.qr && this.qr.response_messages) {
+        for (const msg of this.qr.response_messages) {
+          if (msg.text && msg.text.text && msg.text.text.length > 0) {
+            return msg.text.text.join('\n');
+          }
+          if (msg.output_audio_text) {
+            if (msg.output_audio_text.text) return msg.output_audio_text.text;
+            if (msg.output_audio_text.ssml) return msg.output_audio_text.ssml;
+          }
+        }
+      }
+      return undefined;
+    }
+    return this.qr.fulfillment_text;
   }
 
   get saysEndInteraction() {
-    return this.evt.query_result.intent.end_interaction ;
+    if (this.isCX) {
+      if (!this.qr || !this.qr.response_messages) return false;
+      const end_interaction = this.qr.response_messages
+        .find((m) => typeof m === 'object' && 'end_interaction' in m)?.end_interaction;
+      return end_interaction && Object.keys(end_interaction).length > 0;
+    }
+    return this.qr.intent.end_interaction;
   }
 
   get saysCollectDtmf() {
@@ -28,7 +52,23 @@ class Intent {
   }
 
   get name() {
-    if (!this.isEmpty) return this.evt.query_result.intent.display_name;
+    if (!this.isEmpty) {
+      if (this.isCX) {
+        return this.qr.match?.intent?.display_name;
+      }
+      return this.qr.intent.display_name;
+    }
+  }
+
+  get isCX() {
+    return typeof this.evt.detect_intent_response === 'object';
+  }
+
+  get isNoInput() {
+    if (this.isCX && this.qr && this.qr.match) {
+      return this.qr.match.match_type === 'NO_INPUT';
+    }
+    return false;
   }
 
   toJSON() {
@@ -38,52 +78,48 @@ class Intent {
     };
   }
 
+  /**
+   * Parse a returned intent for DTMF entry information (ES only).
+   * CX does not use fulfillment_messages or output_contexts.
+   *
+   * allow-dtmf-x-y-z
+   * x = min number of digits
+   * y = optional, max number of digits
+   * z = optional, terminating character
+   */
+  _checkIntentForDtmfEntry() {
+    if (this.isCX) return;
+
+    const qr = this.qr;
+    if (!qr || !qr.fulfillment_messages || !qr.output_contexts) {
+      return;
+    }
+
+    // check for custom payloads with a gather verb
+    const custom = qr.fulfillment_messages.find((f) => f.payload && f.payload.verb === 'gather');
+    if (custom) {
+      this.logger.info({custom}, 'found dtmf custom payload');
+      return {
+        max: custom.payload.numDigits,
+        term: custom.payload.finishOnKey,
+        template: custom.payload.responseTemplate
+      };
+    }
+
+    // check for an output context with a specific naming convention
+    const context = qr.output_contexts.find((oc) => oc.name.includes('/contexts/allow-dtmf-'));
+    if (context) {
+      const arr = /allow-dtmf-(\d+)(?:-(\d+))?(?:-(.*))?/.exec(context.name);
+      if (arr) {
+        this.logger.info('found dtmf output context');
+        return {
+          min: parseInt(arr[1]),
+          max: arr.length > 2 ? parseInt(arr[2]) : null,
+          term: arr.length > 3 ? arr[3] : null
+        };
+      }
+    }
+  }
 }
 
 module.exports = Intent;
-
-/**
- * Parse a returned intent for DTMF entry information
- * i.e.
- * allow-dtmf-x-y-z
- * x = min number of digits
- * y = optional, max number of digits
- * z = optional, terminating character
- * e.g.
- * allow-dtmf-5 :     collect 5 digits
- * allow-dtmf-1-4 :   collect between 1 to 4 (inclusive) digits
- * allow-dtmf-1-4-# : collect 1-4 digits, terminating if '#' is entered
- * @param {*} intent - dialogflow intent
- */
-const checkIntentForDtmfEntry = (logger, intent) => {
-  const qr = intent.query_result;
-  if (!qr || !qr.fulfillment_messages || !qr.output_contexts) {
-    logger.info({f: qr.fulfillment_messages, o: qr.output_contexts}, 'no dtmfs');
-    return;
-  }
-
-  // check for custom payloads with a gather verb
-  const custom = qr.fulfillment_messages.find((f) => f.payload && f.payload.verb === 'gather');
-  if (custom && custom.payload && custom.payload.verb === 'gather') {
-    logger.info({custom}, 'found dtmf custom payload');
-    return {
-      max: custom.payload.numDigits,
-      term: custom.payload.finishOnKey,
-      template: custom.payload.responseTemplate
-    };
-  }
-
-  // check for an output context with a specific naming convention
-  const context = qr.output_contexts.find((oc) => oc.name.includes('/contexts/allow-dtmf-'));
-  if (context) {
-    const arr = /allow-dtmf-(\d+)(?:-(\d+))?(?:-(.*))?/.exec(context.name);
-    if (arr) {
-      logger.info({custom}, 'found dtmf output context');
-      return {
-        min: parseInt(arr[1]),
-        max: arr.length > 2 ? parseInt(arr[2]) : null,
-        term: arr.length > 3 ? arr[3] : null
-      };
-    }
-  }
-};