Identify purchases user in session reducer

src/state/purchases/identifyUser/index.ts

@@ -0,0 +1,11 @@
+import Purchases from 'react-native-purchases'
+
+import {SessionAccount} from '#/state/session/types'
+
+export function identifyUser(account: SessionAccount) {
+  Purchases.logIn(account.did)
+  // TODO is this ever not defined?
+  if (account.email) {
+    Purchases.setEmail(account.email)
+  }
+}

src/state/purchases/identifyUser/index.web.ts

@@ -0,0 +1,2 @@
+// no-op on web
+export function identifyUser() {}

src/state/session/reducer.ts

@@ -1,5 +1,6 @@
 import {AtpSessionEvent} from '@atproto/api'
 
+import {identifyUser as identifyPurchasesUser} from '#/state/purchases/identifyUser'
 import {createPublicAgent} from './agent'
 import {wrapSessionReducerForLogging} from './logging'
 import {SessionAccount} from './types'
@@ -118,6 +119,7 @@ let reducer = (state: State, action: Action): State => {
     }
     case 'switched-to-account': {
       const {newAccount, newAgent} = action
+      identifyPurchasesUser(newAccount)
       return {
         accounts: [
           newAccount,