From aa1b18dc53e899488c2a24af4559de06ac2e7656 Mon Sep 17 00:00:00 2001
From: Bingrui Dong <bingruidong@google.com>
Date: Fri, 28 Feb 2025 13:15:08 -0800
Subject: [PATCH] Add the client side messenger code for Prebuilt Appointment
 Booking Agent.

---
 .../cloud-functions/.DS_Store                 | Bin 6148 -> 0 bytes
 ...pointment_booking_client_side_messenger.js |  23 ++++++++++++++++++
 2 files changed, 23 insertions(+)
 delete mode 100644 dialogflow-prebuilt-agents/cloud-functions/.DS_Store
 create mode 100644 dialogflow-prebuilt-agents/messenger/appointment_booking/appointment_booking_client_side_messenger.js

diff --git a/dialogflow-prebuilt-agents/cloud-functions/.DS_Store b/dialogflow-prebuilt-agents/cloud-functions/.DS_Store
deleted file mode 100644
index ee106cbbc8d158e689a7d6441a2b4e69a37bea98..0000000000000000000000000000000000000000
GIT binary patch
literal 0
HcmV?d00001

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diff --git a/dialogflow-prebuilt-agents/messenger/appointment_booking/appointment_booking_client_side_messenger.js b/dialogflow-prebuilt-agents/messenger/appointment_booking/appointment_booking_client_side_messenger.js
new file mode 100644
index 00000000..e91ba2ac
--- /dev/null
+++ b/dialogflow-prebuilt-agents/messenger/appointment_booking/appointment_booking_client_side_messenger.js
@@ -0,0 +1,23 @@
+/**
+ * @fileoverview The client side messenger javascript for the appointment
+ * booking prebuilt agent.
+ */
+let wasFirstRequestSent = false;
+window.addEventListener('df-request-sent', (event) => {
+  if (!wasFirstRequestSent) {
+    event.preventDefault();
+    wasFirstRequestSent = true;
+    dfMessenger.setQueryParameters(
+        {parameters: {'user-token': dfMessenger.accessToken}});
+    dfMessenger.sendQuery(event.detail.data.requestBody.queryInput.text.text);
+  }
+});
+
+window.addEventListener('df-response-received', (event) => {
+  const responseEvent = event?.detail?.raw?.queryResult?.match?.event;
+  if (responseEvent === 'flow.failed') {
+    console.log('Got a flow.failed event; asking agent to recover');
+    dfMessenger.sendQuery(
+        'tell me that you can only help me with [insert what you do] and please try again');
+  }
+});