feat: Added a way to clear a RevenueCat user cache.

Author: Skyost

lib/model/purchases/clients/client.dart

@@ -86,6 +86,9 @@ abstract class RevenueCatClient {
 
   /// Returns the user management URL.
   Future<String?> getManagementUrl();
+
+  /// Invalidates the user info.
+  Future<void> invalidateUserInfo() => Future.value();
 }
 
 /// Represents a purchasable item.

lib/model/purchases/clients/method_channel.dart

@@ -85,4 +85,7 @@ class RevenueCatMethodChannelClient extends RevenueCatClient {
     CustomerInfo customerInfo = await Purchases.getCustomerInfo();
     return customerInfo.managementURL;
   }
+
+  @override
+  Future<void> invalidateUserInfo() => Purchases.invalidateCustomerInfoCache();
 }

lib/model/purchases/contributor_plan.dart

@@ -83,6 +83,7 @@ class ContributorPlan extends AsyncNotifier<ContributorPlanState> {
           return const ResultCancelled();
         case PaywallResult.purchased:
         case PaywallResult.restored:
+          await revenueCatClient.invalidateUserInfo();
           if (await revenueCatClient.hasEntitlement(AppContributorPlan.entitlementId)) {
             state = const AsyncData(ContributorPlanState.active);
           }