[Statsig] Onboarding and routing events (#3302)

src/lib/statsig/events.ts

@@ -1,4 +1,5 @@
 export type LogEvents = {
+  // App events
   init: {
     initMs: number
   }
@@ -14,6 +15,35 @@ export type LogEvents = {
     secondsActive: number
   }
   'state:foreground': {}
+  'router:navigate': {}
+
+  // Screen events
+  'splash:signInPressed': {}
+  'splash:createAccountPressed': {}
+  'signup:nextPressed': {
+    activeStep: number
+  }
+  'onboarding:interests:nextPressed': {
+    selectedInterests: string[]
+    selectedInterestsLength: number
+  }
+  'onboarding:suggestedAccounts:nextPressed': {
+    selectedAccountsLength: number
+    skipped: boolean
+  }
+  'onboarding:followingFeed:nextPressed': {}
+  'onboarding:algoFeeds:nextPressed': {
+    selectedPrimaryFeeds: string[]
+    selectedPrimaryFeedsLength: number
+    selectedSecondaryFeeds: string[]
+    selectedSecondaryFeedsLength: number
+  }
+  'onboarding:topicalFeeds:nextPressed': {
+    selectedFeeds: string[]
+    selectedFeedsLength: number
+  }
+  'onboarding:moderation:nextPressed': {}
+  'onboarding:finished:nextPressed': {}
   'feed:endReached': {
     feedType: string
     itemCount: number
@@ -22,6 +52,10 @@ export type LogEvents = {
     feedType: string
     reason: 'pull-to-refresh' | 'soft-reset' | 'load-latest'
   }
+
+  // Data events
+  'account:create:begin': {}
+  'account:create:success': {}
   'post:create': {
     imageCount: number
     isReply: boolean

src/lib/statsig/statsig.tsx

@@ -1,13 +1,14 @@
 import React from 'react'
 import {Platform} from 'react-native'
+import {AppState, AppStateStatus} from 'react-native'
+import {sha256} from 'js-sha256'
 import {
   Statsig,
   StatsigProvider,
   useGate as useStatsigGate,
 } from 'statsig-react-native-expo'
-import {AppState, AppStateStatus} from 'react-native'
+
 import {useSession} from '../../state/session'
-import {sha256} from 'js-sha256'
 import {LogEvents} from './events'
 
 export type {LogEvents}
@@ -24,7 +25,13 @@ const statsigOptions = {
 
 type FlatJSONRecord = Record<
   string,
-  string | number | boolean | null | undefined
+  | string
+  | number
+  | boolean
+  | null
+  | undefined
+  // Technically not scalar but Statsig will stringify it which works for us:
+  | string[]
 >
 
 let getCurrentRouteName: () => string | null | undefined = () => null