feat: Add analytics for Create Index Button Clicked CLOUDP-314818 (#6878)

* add analytics for Create Index Button Clicked

* made it bit more readable

* address pr comments

Author: rubydong

packages/compass-indexes/src/modules/create-index.tsx

@@ -365,7 +365,22 @@ export const createIndexFormSubmitted = (): IndexesThunkAction<
   void,
   ErrorEncounteredAction | CreateIndexFormSubmittedAction
 > => {
-  return (dispatch, getState) => {
+  return (dispatch, getState, { track, preferences }) => {
+    // @experiment Early Journey Indexes Guidance & Awareness  | Jira Epic: CLOUDP-239367
+    const currentTab = getState().createIndex.currentTab;
+    const { enableIndexesGuidanceExp, showIndexesGuidanceVariant } =
+      preferences.getPreferences();
+
+    track('Create Index Button Clicked', {
+      context: 'Create Index Modal',
+      flow:
+        enableIndexesGuidanceExp && showIndexesGuidanceVariant
+          ? currentTab === 'IndexFlow'
+            ? 'Start with Index'
+            : 'Start with Query'
+          : undefined,
+    });
+
     // Check for field errors.
     if (
       getState().createIndex.fields.some(

packages/compass-telemetry/src/telemetry-events.ts

@@ -2678,6 +2678,16 @@ type ExperimentViewedEvent = CommonEvent<{
   payload: { test_name: string };
 }>;
 
+export type CreateIndexModalContext = 'Create Index Modal';
+
+type CreateIndexButtonClickedEvent = CommonEvent<{
+  name: 'Create Index Button Clicked';
+  payload: {
+    flow: 'Start with Query' | 'Start with Index' | undefined;
+    context: CreateIndexModalContext;
+  };
+}>;
+
 export type TelemetryEvent =
   | AggregationCanceledEvent
   | AggregationCopiedEvent
@@ -2799,4 +2809,5 @@ export type TelemetryEvent =
   | FirstInputDelayEvent
   | CumulativeLayoutShiftEvent
   | TimeToFirstByteEvent
-  | ExperimentViewedEvent;
+  | ExperimentViewedEvent
+  | CreateIndexButtonClickedEvent;