Support both TextInput and GameController based scanning in the BarcodeScannerContainer

Author: staskus

WooCommerce/Classes/POS/Presentation/Barcode Scanning/BarcodeScannerContainer.swift

@@ -39,15 +39,23 @@ struct BarcodeScannerContainerRepresentable: UIViewControllerRepresentable {
     let configuration: HIDBarcodeParserConfiguration
     let onScan: (Result<String, Error>) -> Void
 
-    func makeUIViewController(context: Context) -> BarcodeScannerHostingController {
-        let controller = BarcodeScannerHostingController(
-            configuration: configuration,
-            onScan: onScan
-        )
-        return controller
+    func makeUIViewController(context: Context) -> UIViewController {
+        let featureFlagService = ServiceLocator.featureFlagService
+
+        if featureFlagService.isFeatureFlagEnabled(.pointOfSaleBarcodeScanningi2) {
+            return GameControllerBarcodeScannerHostingController(
+                configuration: configuration,
+                onScan: onScan
+            )
+        } else {
+            return BarcodeScannerHostingController(
+                configuration: configuration,
+                onScan: onScan
+            )
+        }
     }
 
-    func updateUIViewController(_ uiViewController: BarcodeScannerHostingController, context: Context) {}
+    func updateUIViewController(_ uiViewController: UIViewController, context: Context) {}
 }
 
 /// A UIHostingController that handles keyboard input events for barcode scanning.
@@ -115,3 +123,26 @@ class BarcodeScannerHostingController: UIHostingController<EmptyView> {
         super.pressesCancelled(presses, with: event)
     }
 }
+
+/// A UIHostingController that handles GameController keyboard input events for barcode scanning.
+/// This controller uses GameController framework exclusively for language-independent barcode scanning.
+final class GameControllerBarcodeScannerHostingController: UIHostingController<EmptyView> {
+    private var gameControllerBarcodeObserver: GameControllerBarcodeObserver?
+
+    init(
+        configuration: HIDBarcodeParserConfiguration,
+        onScan: @escaping (Result<String, Error>) -> Void
+    ) {
+        super.init(rootView: EmptyView())
+
+        gameControllerBarcodeObserver = GameControllerBarcodeObserver(configuration: configuration, onScan: onScan)
+    }
+
+    @MainActor required dynamic init?(coder aDecoder: NSCoder) {
+        fatalError("init(coder:) has not been implemented")
+    }
+
+    deinit {
+        gameControllerBarcodeObserver = nil
+    }
+}