feat: add submit btn click event (#1178)

src/register/RegistrationPage.jsx

@@ -40,6 +40,7 @@ import {
 import {
   trackSimplifyRegistrationContinueBtnClicked,
   trackSimplifyRegistrationSecondStepViewed,
+  trackSimplifyRegistrationValidatedSubmitBtnClicked,
 } from './data/optimizelyExperiment/track';
 import useSimplifyRegistrationExperimentVariation
   from './data/optimizelyExperiment/useSimplifyRegistrationExperimentVariation';
@@ -146,6 +147,7 @@ const RegistrationPage = (props) => {
     if (isValidatingSimplifiedRegisterFirstPage && backendValidations
         && Object.values(backendValidations).every(value => value === '')
     ) {
+      trackSimplifyRegistrationValidatedSubmitBtnClicked(simplifyRegistrationExpVariation);
       trackSimplifyRegistrationSecondStepViewed();
       dispatch(setSimplifyRegExperimentData(simplifyRegistrationExpVariation, SECOND_STEP));
     }
@@ -294,6 +296,10 @@ const RegistrationPage = (props) => {
       return;
     }
 
+    if (simplifyRegistrationExpVariation === SIMPLIFIED_REGISTRATION_VARIATION
+        || simplifyRegistrationExpVariation === DEFAULT_VARIATION) {
+      trackSimplifyRegistrationValidatedSubmitBtnClicked(simplifyRegistrationExpVariation);
+    }
     // Preparing payload for submission
     payload = prepareRegistrationPayload(
       payload,

src/register/data/optimizelyExperiment/track.js

@@ -4,6 +4,7 @@ export const eventNames = {
   simplifyRegistrationFirstStepViewed: 'edx.bi.user.simplifyregistration.step1.viewed',
   simplifyRegistrationSecondStepViewed: 'edx.bi.user.simplifyregistration.step2.viewed',
   simplifyRegistrationContinueBtnClicked: 'edx.bi.user.registration.submit.click',
+  simplifyRegistrationValidatedSubmitBtnClicked: 'edx.bi.user.registration.validated.submit.click',
 };
 
 export const trackSimplifyRegistrationFirstStepViewed = (expVariation) => {
@@ -23,3 +24,9 @@ export const trackSimplifyRegistrationContinueBtnClicked = (expVariation) => {
     variation: expVariation,
   });
 };
+
+export const trackSimplifyRegistrationValidatedSubmitBtnClicked = (expVariation) => {
+  sendTrackEvent(eventNames.simplifyRegistrationValidatedSubmitBtnClicked, {
+    variation: expVariation,
+  });
+};