feat(mobile): Background app refresh status (#1839)

* adds background app refresh message

* fixes ios background settings provider

* styling

* capitalization

* changed to watch

* uses settings notifier now

* forgot to commit this file

* changed to watch and added more clarification

---------

Co-authored-by: Marty Fuhry <marty@fuhry.farm>

mobile/lib/modules/backup/views/backup_controller_page.dart

@@ -5,7 +5,9 @@ import 'package:easy_localization/easy_localization.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter_hooks/flutter_hooks.dart';
 import 'package:hooks_riverpod/hooks_riverpod.dart';
+import 'package:immich_mobile/modules/backup/background_service/background.service.dart';
 import 'package:immich_mobile/modules/backup/providers/error_backup_list.provider.dart';
+import 'package:immich_mobile/modules/backup/providers/ios_background_settings.provider.dart';
 import 'package:immich_mobile/modules/backup/ui/current_backup_asset_info_box.dart';
 import 'package:immich_mobile/modules/backup/ui/ios_debug_info_tile.dart';
 import 'package:immich_mobile/modules/login/models/authentication_state.model.dart';
@@ -15,6 +17,7 @@ import 'package:immich_mobile/modules/backup/providers/backup.provider.dart';
 import 'package:immich_mobile/routing/router.dart';
 import 'package:immich_mobile/shared/providers/websocket.provider.dart';
 import 'package:immich_mobile/modules/backup/ui/backup_info_card.dart';
+import 'package:permission_handler/permission_handler.dart';
 import 'package:url_launcher/url_launcher.dart';
 
 class BackupControllerPage extends HookConsumerWidget {
@@ -24,6 +27,10 @@ class BackupControllerPage extends HookConsumerWidget {
   Widget build(BuildContext context, WidgetRef ref) {
     BackUpState backupState = ref.watch(backupProvider);
     AuthenticationState authenticationState = ref.watch(authenticationProvider);
+    final settings = ref.watch(iOSBackgroundSettingsProvider.notifier).settings;
+
+    final appRefreshDisabled = Platform.isIOS &&
+      settings?.appRefreshEnabled != true;
     bool hasExclusiveAccess =
         backupState.backupProgress != BackUpProgressEnum.inBackground;
     bool shouldBackup = backupState.allUniqueAssets.length -
@@ -40,6 +47,13 @@ class BackupControllerPage extends HookConsumerWidget {
           ref.watch(backupProvider.notifier).getBackupInfo();
         }
 
+        // Update the background settings information just to make sure we
+        // have the latest, since the platform channel will not update
+        // automatically
+        if (Platform.isIOS) {
+          ref.watch(iOSBackgroundSettingsProvider.notifier).refresh();
+        }
+
         ref
             .watch(websocketProvider.notifier)
             .stopListenToEvent('on_upload_success');
@@ -362,14 +376,65 @@ class BackupControllerPage extends HookConsumerWidget {
               ],
             ),
           ),
-          if (isBackgroundEnabled)
-            IosDebugInfoTile(
-              key: ValueKey(isChargingRequired),
+          if (isBackgroundEnabled && Platform.isIOS)
+            FutureBuilder(
+              future: ref
+                .read(backgroundServiceProvider)
+                .getIOSBackgroundAppRefreshEnabled(),
+              builder: (context, snapshot) {
+                final enabled = snapshot.data as bool?;
+                // If it's not enabled, show them some kind of alert that says
+                // background refresh is not enabled
+                if (enabled != null && !enabled) {
+
+                }
+                // If it's enabled, no need to bother them
+                return Container();
+              },
             ),
+          if (isBackgroundEnabled && settings != null)
+            IosDebugInfoTile(
+              settings: settings,
+          ),
         ],
       );
     }
 
+    Widget buildBackgroundAppRefreshWarning() {
+      return ListTile(
+        isThreeLine: true,
+        leading: const Icon(Icons.task_outlined,),
+        title: const Text(
+          'backup_controller_page_background_app_refresh_disabled_title',
+          style: TextStyle(
+            fontWeight: FontWeight.bold,
+            fontSize: 14,
+          ),
+        ).tr(),
+        subtitle: Column(
+          crossAxisAlignment: CrossAxisAlignment.start,
+          children: [
+            Padding(
+              padding: const EdgeInsets.symmetric(vertical: 8.0),
+              child: const Text(
+                'backup_controller_page_background_app_refresh_disabled_content',
+              ).tr(),
+            ),
+          ElevatedButton(
+              onPressed: () => openAppSettings(),
+              child: const Text(
+                'backup_controller_page_background_app_refresh_enable_button_text',
+                style: TextStyle(
+                  fontWeight: FontWeight.bold,
+                  fontSize: 12,
+                ),
+              ).tr(),
+            ),
+          ],
+        ),
+      );
+    }
+
     Widget buildSelectedAlbumName() {
       var text = "backup_controller_page_backup_selected".tr();
       var albums = ref.watch(backupProvider).selectedBackupAlbums;
@@ -613,7 +678,15 @@ class BackupControllerPage extends HookConsumerWidget {
             const Divider(),
             buildAutoBackupController(),
             const Divider(),
-            buildBackgroundBackupController(),
+            AnimatedSwitcher(
+              duration: const Duration(milliseconds: 500),
+              child: Platform.isIOS
+              ? (
+                appRefreshDisabled
+                  ? buildBackgroundAppRefreshWarning()
+                  : buildBackgroundBackupController()
+              ) : buildBackgroundBackupController(),
+            ),
             const Divider(),
             buildStorageInformation(),
             const Divider(),
@@ -624,4 +697,6 @@ class BackupControllerPage extends HookConsumerWidget {
       ),
     );
   }
+
+
 }