Checking if the PA manager is initialized before checking enablement

Summary: We noticed that, sometimes joining PA group request failed because PACustomAudienceClient.enabled() did not get a chance to be triggered, e.g.  PACustomAudienceClient. enabled() is called after AppEventManager starts.  In this diff, we try to enable PA when a join request happens if it is not yet initialized in order to not miss any request.

Reviewed By: youerkang

Differential Revision:
D69957967

Privacy Context Container: L1250336

fbshipit-source-id: 1409b0e8b815dc924ad9a0e252712bd538828445

facebook-core/src/main/java/com/facebook/appevents/gps/pa/PACustomAudienceClient.kt

@@ -39,13 +39,15 @@ object PACustomAudienceClient {
     // Sync with RestrictiveDataManager.REPLACEMENT_STRING
     private const val REPLACEMENT_STRING = "_removed_"
     private var enabled = false
+    private var isInitialized = false
     private var customAudienceManager: CustomAudienceManager? = null
     private lateinit var gpsDebugLogger: GpsDebugLogger
     private lateinit var baseUri: String
 
     @JvmStatic
     @TargetApi(34)
     fun enable() {
+        isInitialized = true
         val context = FacebookSdk.getApplicationContext()
         gpsDebugLogger = GpsDebugLogger(context)
         baseUri = "https://www.${FacebookSdk.getFacebookDomain()}/privacy_sandbox/pa/logic"
@@ -75,13 +77,21 @@ object PACustomAudienceClient {
     }
 
     fun joinCustomAudience(appId: String?, eventName: String?) {
+        if (!isInitialized) {
+            enable()
+        }
+
         if (!enabled) return
 
         joinCustomAudienceImpl(appId, eventName)
     }
 
 
     fun joinCustomAudience(appId: String?, event: AppEvent?) {
+        if (!isInitialized) {
+            enable()
+        }
+
         if (!enabled) return
 
         var eventName: String? = null