[mob][photos] add grace window plugin for ios

mobile/apps/photos/ios/Podfile.lock

@@ -116,6 +116,8 @@ PODS:
   - GoogleUtilities/UserDefaults (8.1.0):
     - GoogleUtilities/Logger
     - GoogleUtilities/Privacy
+  - grace_window_ios (1.0.0):
+    - Flutter
   - home_widget (0.0.1):
     - Flutter
   - in_app_purchase_storekit (0.0.1):
@@ -292,6 +294,7 @@ DEPENDENCIES:
   - flutter_sodium (from `.symlinks/plugins/flutter_sodium/ios`)
   - flutter_timezone (from `.symlinks/plugins/flutter_timezone/ios`)
   - fluttertoast (from `.symlinks/plugins/fluttertoast/ios`)
+  - grace_window_ios (from `.symlinks/plugins/grace_window_ios/ios`)
   - home_widget (from `.symlinks/plugins/home_widget/ios`)
   - in_app_purchase_storekit (from `.symlinks/plugins/in_app_purchase_storekit/darwin`)
   - integration_test (from `.symlinks/plugins/integration_test/ios`)
@@ -409,6 +412,8 @@ EXTERNAL SOURCES:
     :path: ".symlinks/plugins/flutter_timezone/ios"
   fluttertoast:
     :path: ".symlinks/plugins/fluttertoast/ios"
+  grace_window_ios:
+    :path: ".symlinks/plugins/grace_window_ios/ios"
   home_widget:
     :path: ".symlinks/plugins/home_widget/ios"
   in_app_purchase_storekit:
@@ -525,6 +530,7 @@ SPEC CHECKSUMS:
   fluttertoast: 2c67e14dce98bbdb200df9e1acf610d7a6264ea1
   GoogleDataTransport: aae35b7ea0c09004c3797d53c8c41f66f219d6a7
   GoogleUtilities: 00c88b9a86066ef77f0da2fab05f65d7768ed8e1
+  grace_window_ios: b98b82feaabeee818af7b7e0e3ff49b2acd7942a
   home_widget: f169fc41fd807b4d46ab6615dc44d62adbf9f64f
   in_app_purchase_storekit: d1a48cb0f8b29dbf5f85f782f5dd79b21b90a5e6
   integration_test: 4a889634ef21a45d28d50d622cf412dc6d9f586e

mobile/apps/photos/ios/Runner.xcodeproj/project.pbxproj

@@ -650,6 +650,7 @@
 				"${BUILT_PRODUCTS_DIR}/flutter_sodium/flutter_sodium.framework",
 				"${BUILT_PRODUCTS_DIR}/flutter_timezone/flutter_timezone.framework",
 				"${BUILT_PRODUCTS_DIR}/fluttertoast/fluttertoast.framework",
+				"${BUILT_PRODUCTS_DIR}/grace_window_ios/grace_window_ios.framework",
 				"${BUILT_PRODUCTS_DIR}/home_widget/home_widget.framework",
 				"${BUILT_PRODUCTS_DIR}/in_app_purchase_storekit/in_app_purchase_storekit.framework",
 				"${BUILT_PRODUCTS_DIR}/integration_test/integration_test.framework",
@@ -754,6 +755,7 @@
 				"${TARGET_BUILD_DIR}/${FRAMEWORKS_FOLDER_PATH}/flutter_sodium.framework",
 				"${TARGET_BUILD_DIR}/${FRAMEWORKS_FOLDER_PATH}/flutter_timezone.framework",
 				"${TARGET_BUILD_DIR}/${FRAMEWORKS_FOLDER_PATH}/fluttertoast.framework",
+				"${TARGET_BUILD_DIR}/${FRAMEWORKS_FOLDER_PATH}/grace_window_ios.framework",
 				"${TARGET_BUILD_DIR}/${FRAMEWORKS_FOLDER_PATH}/home_widget.framework",
 				"${TARGET_BUILD_DIR}/${FRAMEWORKS_FOLDER_PATH}/in_app_purchase_storekit.framework",
 				"${TARGET_BUILD_DIR}/${FRAMEWORKS_FOLDER_PATH}/integration_test.framework",

mobile/apps/photos/ios/Runner/AppDelegate.swift

@@ -7,6 +7,10 @@ import workmanager_apple
 
 @main
 @objc class AppDelegate: FlutterAppDelegate {
+  private static let backgroundAppRefreshIdentifier =
+    "io.ente.frame.iOSBackgroundAppRefresh"
+  private static let backgroundProcessingIdentifier =
+    "io.ente.frame.iOSBackgroundProcessing"
   private static let workmanagerDebugThreadIdentifier =
     "io.ente.frame.workmanager.debug"
 
@@ -35,11 +39,13 @@ import workmanager_apple
     WorkmanagerPlugin.setPluginRegistrantCallback { registry in
       GeneratedPluginRegistrant.register(with: registry)
     }
-    var freqInMinutes = 30 * 60
-    // Register a periodic task in iOS 13+
+    let refreshFrequencyInSeconds = 15 * 60
+    // Keep native task registration in AppDelegate; Dart owns actual scheduling.
     WorkmanagerPlugin.registerPeriodicTask(
-      withIdentifier: "io.ente.frame.iOSBackgroundAppRefresh",
-      frequency: NSNumber(value: freqInMinutes))
+      withIdentifier: Self.backgroundAppRefreshIdentifier,
+      frequency: NSNumber(value: refreshFrequencyInSeconds))
+    WorkmanagerPlugin.registerBGProcessingTask(
+      withIdentifier: Self.backgroundProcessingIdentifier)
 
     // Retrieve the link from parameters
     if let url = AppLinks.shared.getLink(launchOptions: launchOptions) {

mobile/apps/photos/ios/Runner/Info.plist

@@ -5,6 +5,7 @@
 		<key>BGTaskSchedulerPermittedIdentifiers</key>
 		<array>
 			<string>io.ente.frame.iOSBackgroundAppRefresh</string>
+			<string>io.ente.frame.iOSBackgroundProcessing</string>
 		</array>
 		<key>CFBundleDevelopmentRegion</key>
 		<string>$(DEVELOPMENT_LANGUAGE)</string>

mobile/apps/photos/lib/app.dart

@@ -21,6 +21,7 @@ import "package:photos/services/home_widget_service.dart";
 import "package:photos/services/memory_home_widget_service.dart";
 import "package:photos/services/people_home_widget_service.dart";
 import 'package:photos/services/sync/sync_service.dart';
+import 'package:photos/services/upload_background_coordinator.dart';
 import 'package:photos/ui/tabs/home_widget.dart';
 import "package:photos/ui/viewer/actions/file_viewer.dart";
 import "package:photos/utils/bg_task_utils.dart";
@@ -193,14 +194,21 @@ class _EnteAppState extends State<EnteApp> with WidgetsBindingObserver {
   @override
   void didChangeAppLifecycleState(AppLifecycleState state) {
     final String stateChangeReason = 'app -> $state';
+    final wasForeground = AppLifecycleService.instance.isForeground;
     if (state == AppLifecycleState.resumed) {
       final lastAppOpenTime = AppLifecycleService.instance.getLastAppOpenTime();
       AppLifecycleService.instance
           .onAppInForeground(stateChangeReason + ': sync now');
+      if (!wasForeground) {
+        unawaited(onUploadAppForeground());
+      }
       unawaited(_reloadCachesUpdatedInBackground(lastAppOpenTime));
       SyncService.instance.sync();
     } else {
       AppLifecycleService.instance.onAppInBackground(stateChangeReason);
+      if (wasForeground) {
+        unawaited(onUploadAppBackground());
+      }
     }
   }