xrOS: added support for new purchase(confirmIn:options:) method

Sources/FoundationExtensions/UIApplication+RCExtensions.swift

@@ -17,8 +17,7 @@ import UIKit
 
 extension UIApplication {
 
-    @available(iOS 13.0, *)
-    @available(macCatalystApplicationExtension 13.1, *)
+    @available(iOS 13.0, macCatalystApplicationExtension 13.1, *)
     @available(macOS, unavailable)
     @available(watchOS, unavailable)
     @available(watchOSApplicationExtension, unavailable)

Sources/Logging/Strings/ManageSubscriptionsStrings.swift

@@ -21,7 +21,6 @@ extension ManageSubscriptionsHelper {
 
         case error_from_appstore_show_manage_subscription(error: Error)
         case failed_to_get_management_url_error_unknown(error: Error)
-        case failed_to_get_window_scene
         case management_url_nil_opening_default
         case show_manage_subscriptions_called_in_unsupported_platform
         case susbscription_management_sheet_dismissed
@@ -38,8 +37,6 @@ extension ManageSubscriptionsHelper.Strings: LogMessage {
             return "Error when trying to show manage subscription: \(error.localizedDescription)"
         case .failed_to_get_management_url_error_unknown(let error):
             return "Failed to get managementURL from CustomerInfo. Details: \(error.localizedDescription)"
-        case .failed_to_get_window_scene:
-            return "Failed to get UIWindowScene"
         case .management_url_nil_opening_default:
             return "managementURL is nil, opening Apple's subscription management page"
         case .susbscription_management_sheet_dismissed:

Sources/Misc/SystemInfo.swift

@@ -179,6 +179,25 @@ class SystemInfo {
 
 }
 
+#if os(iOS)
+extension SystemInfo {
+
+    @available(iOS 13.0, macCatalystApplicationExtension 13.1, *)
+    @available(macOS, unavailable)
+    @available(watchOS, unavailable)
+    @available(watchOSApplicationExtension, unavailable)
+    @available(tvOS, unavailable)
+    var currentWindowScene: UIWindowScene {
+        get throws {
+            let scene = self.sharedUIApplication?.currentWindowScene
+
+            return try scene.orThrow(ErrorUtils.storeProblemError(withMessage: "Failed to get UIWindowScene"))
+        }
+    }
+
+}
+#endif
+
 extension SystemInfo: SandboxEnvironmentDetector {}
 
 // @unchecked because:

Sources/Purchasing/Purchases/PurchasesOrchestrator.swift

@@ -458,7 +458,7 @@ final class PurchasesOrchestrator {
 
             self.cachePresentedOfferingIdentifier(package: package, productIdentifier: sk2Product.id)
 
-            result = try await sk2Product.purchase(options: options)
+            result = try await self.purchase(sk2Product, options)
         } catch StoreKitError.userCancelled {
             guard !self.systemInfo.dangerousSettings.customEntitlementComputation else {
                 throw ErrorUtils.purchaseCancelledError()
@@ -501,6 +501,25 @@ final class PurchasesOrchestrator {
         return (transaction, customerInfo, userCancelled)
     }
 
+    @available(iOS 15.0, tvOS 15.0, watchOS 8.0, macOS 12.0, *)
+    private func purchase(
+        _ product: SK2Product,
+        _ options: Set<Product.PurchaseOption>
+    ) async throws -> Product.PurchaseResult {
+        // Note: this can be simplified as `#if swift(>=5.9) && os(xrOS)`
+        // once we drop support for Xcode 13.x
+        #if swift(>=5.9)
+            #if os(xrOS)
+            return try await product.purchase(confirmIn: try self.systemInfo.currentWindowScene,
+                                              options: options)
+            #else
+            return try await product.purchase(options: options)
+            #endif
+        #else
+        return try await product.purchase(options: options)
+        #endif
+    }
+
     @available(iOS 15.0, tvOS 15.0, watchOS 8.0, macOS 12.0, *)
     func promotionalOffer(
         forProductDiscount discount: StoreProductDiscountType,

Sources/Support/BeginRefundRequestHelper.swift

@@ -69,9 +69,7 @@ class BeginRefundRequestHelper {
     @available(tvOS, unavailable)
     @MainActor
     func beginRefundRequest(forProduct productID: String) async throws -> RefundRequestStatus {
-        guard let windowScene = systemInfo.sharedUIApplication?.currentWindowScene else {
-            throw ErrorUtils.storeProblemError(withMessage: "Failed to get UIWindowScene")
-        }
+        let windowScene = try self.systemInfo.currentWindowScene
 
         let transactionID = try await sk2Helper.verifyTransaction(productID: productID)
         return try await sk2Helper.initiateRefundRequest(transactionID: transactionID,

Sources/Support/ManageSubscriptionsHelper.swift

@@ -124,10 +124,12 @@ private extension ManageSubscriptionsHelper {
     @available(iOS 15.0, *)
     @available(macOS, unavailable)
     func showSK2ManageSubscriptions() async -> Result<Void, PurchasesError> {
-        guard let application = systemInfo.sharedUIApplication,
-              let windowScene = application.currentWindowScene else {
-                  let message = Strings.failed_to_get_window_scene
-                  return .failure(ErrorUtils.storeProblemError(withMessage: message.description))
+        let windowScene: UIWindowScene
+
+        do {
+            windowScene = try self.systemInfo.currentWindowScene
+        } catch {
+            return .failure(ErrorUtils.purchasesError(withUntypedError: error))
         }
 
 #if os(iOS)