[AAv2] Drop regionCode if we can't get a short code on Android (#9542)

* Drop regionCode if we can't get a short code on Android

* Add a debug metric

(cherry picked from commit 8d5b1c83cc)

src/ageAssurance/useBeginAgeAssurance.ts

@@ -1,3 +1,4 @@
+import {Platform} from 'react-native'
 import {type AppBskyAgeassuranceBegin, AtpAgent} from '@atproto/api'
 import {useMutation} from '@tanstack/react-query'
 
@@ -8,9 +9,9 @@ import {
   PUBLIC_APPVIEW_DID,
 } from '#/lib/constants'
 import {isNetworkError} from '#/lib/hooks/useCleanError'
-import {logger} from '#/logger'
 import {useAgent} from '#/state/session'
 import {usePatchAgeAssuranceServerState} from '#/ageAssurance'
+import {logger} from '#/ageAssurance/logger'
 import {BLUESKY_PROXY_DID} from '#/env'
 import {useGeolocation} from '#/geolocation'
 
@@ -29,8 +30,8 @@ export function useBeginAgeAssurance() {
         'countryCode' | 'regionCode'
       >,
     ) {
-      const countryCode = geolocation?.countryCode
-      const regionCode = geolocation?.regionCode
+      const countryCode = geolocation?.countryCode?.toUpperCase()
+      const regionCode = geolocation?.regionCode?.toUpperCase()
       if (!countryCode) {
         throw new Error(`Geolocation not available, cannot init age assurance.`)
       }
@@ -47,6 +48,16 @@ export function useBeginAgeAssurance() {
       appView.sessionManager.session.accessJwt = token
       appView.sessionManager.session.refreshJwt = ''
 
+      logger.metric(
+        'ageAssurance:api:begin',
+        {
+          platform: Platform.OS,
+          countryCode,
+          regionCode,
+        },
+        {statsig: false},
+      )
+
       /*
        * 2s wait is good actually. Email sending takes a hot sec and this helps
        * ensure the email is ready for the user once they open their inbox.
@@ -55,8 +66,8 @@ export function useBeginAgeAssurance() {
         2e3,
         appView.app.bsky.ageassurance.begin({
           ...props,
-          countryCode: countryCode.toUpperCase(),
-          regionCode: regionCode ? regionCode.toUpperCase() : undefined,
+          countryCode,
+          regionCode,
         }),
       )
 

src/geolocation/util.ts

@@ -1,5 +1,6 @@
 import {type LocationGeocodedAddress} from 'expo-location'
 
+import {isAndroid} from '#/platform/detection'
 import {logger} from '#/geolocation/logger'
 import {type Geolocation} from '#/geolocation/types'
 
@@ -75,16 +76,29 @@ export function normalizeDeviceLocation(
   location: LocationGeocodedAddress,
 ): Geolocation {
   let {isoCountryCode, region} = location
+  let regionCode: string | undefined = region ?? undefined
 
-  if (region) {
-    if (isoCountryCode === 'US') {
-      region = USRegionNameToRegionCode[region] ?? region
+  /*
+   * Android doesn't give us ISO 3166-2 short codes. We need these for US
+   */
+  if (isAndroid) {
+    if (region && isoCountryCode === 'US') {
+      /*
+       * We need short codes for US states. If we can't remap it, just drop it
+       * entirely for now.
+       */
+      regionCode = USRegionNameToRegionCode[region] ?? undefined
+    } else {
+      /*
+       * Outside the US, we don't need regionCodes for now, so just drop it.
+       */
+      regionCode = undefined
     }
   }
 
   return {
     countryCode: isoCountryCode ?? undefined,
-    regionCode: region ?? undefined,
+    regionCode,
   }
 }
 

src/logger/metrics.ts

@@ -598,6 +598,11 @@ export type MetricEvents = {
     hasInitiatedPreviously: boolean
   }
   'ageAssurance:initDialogSubmit': {}
+  'ageAssurance:api:begin': {
+    platform: string
+    countryCode: string
+    regionCode?: string
+  }
   'ageAssurance:initDialogError': {
     code: string
   }