From 3f537268e88ba6370ba2e48b354d1a84746b2944 Mon Sep 17 00:00:00 2001
From: Taymoor Khan <tmkhan.k2@gmail.com>
Date: Mon, 6 Dec 2021 13:43:41 -0800
Subject: [PATCH] feat(meetings): add callInitiateJoinReq joinTime metric

---
 .../plugin-meetings/src/meeting/index.js      | 56 +++++++++++++++++--
 .../plugin-meetings/src/metrics/index.js      |  9 +++
 2 files changed, 60 insertions(+), 5 deletions(-)

diff --git a/packages/node_modules/@webex/plugin-meetings/src/meeting/index.js b/packages/node_modules/@webex/plugin-meetings/src/meeting/index.js
index 70f67b618a2..1783c9d30d7 100644
--- a/packages/node_modules/@webex/plugin-meetings/src/meeting/index.js
+++ b/packages/node_modules/@webex/plugin-meetings/src/meeting/index.js
@@ -1075,6 +1075,15 @@ export default class Meeting extends StatelessWebexPlugin {
         };
       }
 
+      const callInitiateJoinReq = this.getCallInitiateJoinReq();
+
+      if (callInitiateJoinReq) {
+        options.joinTimes = {
+          ...options.joinTimes,
+          callInitiateJoinReq
+        };
+      }
+
       if (options.type === MQA_STATS.CA_TYPE) {
         payload = Metrics.initMediaPayload(options.event, identifiers, options);
       }
@@ -3381,12 +3390,13 @@ export default class Meeting extends StatelessWebexPlugin {
       }
     }
 
-    return MeetingUtil.joinMeetingOptions(this, options).then((join) => {
-      this.meetingFiniteStateMachine.join();
-      LoggerProxy.logger.log('Meeting:index#join --> Success');
+    return MeetingUtil.joinMeetingOptions(this, options)
+      .then((join) => {
+        this.meetingFiniteStateMachine.join();
+        LoggerProxy.logger.log('Meeting:index#join --> Success');
 
-      return join;
-    })
+        return join;
+      })
       .then((join) => {
         joinSuccess(join);
         this.deferJoin = undefined;
@@ -5305,4 +5315,40 @@ export default class Meeting extends StatelessWebexPlugin {
 
     return undefined;
   }
+
+  /**
+   *
+   * @returns {undefined}
+   */
+  setStartCallInitiateJoinReq() {
+    this.startCallInitiateJoinReq = performance.now();
+    this.endCallInitiateJoinReq = undefined;
+  }
+
+  /**
+   *
+   * @returns {undefined}
+   */
+  setEndCallInitiateJoinReq() {
+    this.endCallInitiateJoinReq = performance.now();
+  }
+
+  /**
+   *
+   * @returns {string} duration between call initiate and sending join request to locus
+   */
+  getCallInitiateJoinReq() {
+    const start = this.startCallInitiateJoinReq;
+    const end = this.endCallInitiateJoinReq;
+
+    if (start && end) {
+      const calculatedDelay = end - start;
+
+      return calculatedDelay > METRICS_JOIN_TIMES_MAX_DURATION ?
+        undefined :
+        calculatedDelay;
+    }
+
+    return undefined;
+  }
 }
diff --git a/packages/node_modules/@webex/plugin-meetings/src/metrics/index.js b/packages/node_modules/@webex/plugin-meetings/src/metrics/index.js
index 511e47ab21c..ff08bda0252 100644
--- a/packages/node_modules/@webex/plugin-meetings/src/metrics/index.js
+++ b/packages/node_modules/@webex/plugin-meetings/src/metrics/index.js
@@ -48,6 +48,12 @@ const getLocalNetworkPrefix = (localIp) => {
 
 const triggerTimers = ({event, meeting, data}) => {
   switch (event) {
+    case eventType.CALL_INITIATED:
+      meeting.setStartCallInitiateJoinReq();
+      break;
+    case eventType.LOCUS_JOIN_REQUEST:
+      meeting.setEndCallInitiateJoinReq();
+      break;
     case eventType.LOCUS_JOIN_RESPONSE:
       meeting.setStartSetupDelay(mediaType.AUDIO);
       meeting.setStartSetupDelay(mediaType.VIDEO);
@@ -235,6 +241,9 @@ class Metrics {
       if (options.recoveredBy) {
         payload.event.recoveredBy = options.recoveredBy;
       }
+      if (options.joinTimes) {
+        payload.event.joinTimes = options.joinTimes;
+      }
     }
 
     return payload;