[Statsig] Track likes, reposts, follows (#3195)

* [Statsig] Track likes

* Move tracking to intent

* Track repost/unrepost

* Track profile follows/unfollows

* Less copy paste

* Reorder

src/lib/statsig/events.ts

@@ -1,5 +1,35 @@
-export type Events = {
+export type LogEvents = {
   init: {
     initMs: number
   }
+  'post:like': {
+    logContext: 'FeedItem' | 'PostThreadItem' | 'Post'
+  }
+  'post:repost': {
+    logContext: 'FeedItem' | 'PostThreadItem' | 'Post'
+  }
+  'post:unlike': {
+    logContext: 'FeedItem' | 'PostThreadItem' | 'Post'
+  }
+  'post:unrepost': {
+    logContext: 'FeedItem' | 'PostThreadItem' | 'Post'
+  }
+  'profile:follow': {
+    logContext:
+      | 'RecommendedFollowsItem'
+      | 'PostThreadItem'
+      | 'ProfileCard'
+      | 'ProfileHeader'
+      | 'ProfileHeaderSuggestedFollows'
+      | 'ProfileMenu'
+  }
+  'profile:unfollow': {
+    logContext:
+      | 'RecommendedFollowsItem'
+      | 'PostThreadItem'
+      | 'ProfileCard'
+      | 'ProfileHeader'
+      | 'ProfileHeaderSuggestedFollows'
+      | 'ProfileMenu'
+  }
 }

src/lib/statsig/statsig.tsx

@@ -6,7 +6,9 @@ import {
 } from 'statsig-react-native-expo'
 import {useSession} from '../../state/session'
 import {sha256} from 'js-sha256'
-import {Events} from './events'
+import {LogEvents} from './events'
+
+export type {LogEvents}
 
 const statsigOptions = {
   environment: {
@@ -31,9 +33,9 @@ export function attachRouteToLogEvents(
   getCurrentRouteName = getRouteName
 }
 
-export function logEvent<E extends keyof Events>(
+export function logEvent<E extends keyof LogEvents>(
   eventName: E & string,
-  rawMetadata?: Events[E] & FlatJSONRecord,
+  rawMetadata: LogEvents[E] & FlatJSONRecord,
 ) {
   const fullMetadata = {
     ...rawMetadata,