Implement flutter notifications for task sync changes

app/android/app/build.gradle

@@ -33,12 +33,14 @@ android {
     ndkVersion "28.2.13676358"
 
     compileOptions {
-        sourceCompatibility JavaVersion.VERSION_1_8
-        targetCompatibility JavaVersion.VERSION_1_8
+        coreLibraryDesugaringEnabled true
+
+        sourceCompatibility JavaVersion.VERSION_17
+        targetCompatibility JavaVersion.VERSION_17
     }
 
     kotlinOptions {
-        jvmTarget = '1.8'
+        jvmTarget = JavaVersion.VERSION_17.toString()
     }
 
     sourceSets {
@@ -54,6 +56,8 @@ android {
         targetSdkVersion flutter.targetSdkVersion
         versionCode flutterVersionCode.toInteger()
         versionName flutterVersionName
+
+        multiDexEnabled true
     }
 
     buildTypes {
@@ -69,7 +73,11 @@ flutter {
     source '../..'
 }
 
-dependencies {}
+dependencies {
+    implementation 'androidx.window:window:1.0.0'
+    implementation 'androidx.window:window-java:1.0.0'
+    coreLibraryDesugaring 'com.android.tools:desugar_jdk_libs:2.1.4'
+}
 
 // See: https://developer.android.com/build/configure-apk-splits
 import com.android.build.OutputFile

app/android/app/src/main/AndroidManifest.xml

@@ -1,4 +1,13 @@
 <manifest xmlns:android="http://schemas.android.com/apk/res/android">
+    <!-- notification permissions -->
+    <uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED"/>
+    <uses-permission android:name="android.permission.VIBRATE" />
+    <uses-permission android:name="android.permission.ACCESS_NOTIFICATION_POLICY"/>
+    <uses-permission android:name="android.permission.USE_FULL_SCREEN_INTENT" />
+    <uses-permission android:name="android.permission.USE_EXACT_ALARM" />
+    <uses-permission android:name="android.permission.POST_NOTIFICATIONS"/>
+
+    <!-- Internet access and state -->
     <uses-permission android:name="android.permission.INTERNET" />
     <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
 
@@ -37,6 +46,18 @@
             android:authorities="${applicationId}.workmanager-init"
             android:enabled="false"
             android:exported="false"/>
+
+        <!-- Flutter Local Notifications plugin receivers -->
+        <receiver android:exported="false" android:name="com.dexterous.flutterlocalnotifications.ActionBroadcastReceiver" />
+        <receiver android:exported="false" android:name="com.dexterous.flutterlocalnotifications.ScheduledNotificationReceiver" />
+        <receiver android:exported="false" android:name="com.dexterous.flutterlocalnotifications.ScheduledNotificationBootReceiver">
+            <intent-filter>
+                <action android:name="android.intent.action.BOOT_COMPLETED"/>
+                <action android:name="android.intent.action.MY_PACKAGE_REPLACED"/>
+                <action android:name="android.intent.action.QUICKBOOT_POWERON" />
+                <action android:name="com.htc.intent.action.QUICKBOOT_POWERON"/>
+            </intent-filter>
+        </receiver>
     </application>
     <!-- Required to query activities that can process text, see:
          https://developer.android.com/training/package-visibility?hl=en and

app/android/build.gradle

@@ -16,3 +16,14 @@ subprojects {
 tasks.register("clean", Delete) {
     delete rootProject.buildDir
 }
+
+buildscript {
+    repositories {
+        google()
+        mavenCentral()
+    }
+
+    dependencies {
+        classpath 'com.android.tools.build:gradle:8.12.0'
+    }
+}

app/lib/context.dart

@@ -1,4 +1,7 @@
+import 'dart:convert';
+
 import 'package:stride/bridge/api/context.dart' as context;
+import 'package:stride/notifications.dart';
 
 class RustContext {
   static late Stream<String> _stream;
@@ -7,6 +10,52 @@ class RustContext {
 
   static Future<void> init() async {
     _stream = context.createContext().asBroadcastStream();
+
+    _stream.listen((event) async {
+      final json = jsonDecode(event) as Map<String, dynamic>;
+      if (json['method'] == 'stride.notification.repository.changed') {
+        final params = json['params'] as Map<String, dynamic>;
+        final changes = params['changes'] as List<dynamic>;
+        for (final change in changes) {
+          final taskId = change['task-id'] as String;
+          var title = change['title'] as String?;
+
+          String? body;
+
+          var isNewTask = false;
+
+          final fields = change['fields'] as List<dynamic>;
+          for (final field in fields) {
+            final type = field['type'] as String;
+            final current = field['current'] as String?;
+            final previous = field['previous'] as String?;
+
+            if (type == 'status' && previous == null && current == 'pending') {
+              isNewTask = true;
+              continue;
+            }
+
+            if (type == 'title') {
+              title ??= current;
+
+              if (previous == null) {
+                continue;
+              }
+            }
+
+            body ??= '';
+
+            // ignore: use_string_buffers
+            body += '$type: ${previous ?? 'none'} -> ${current ?? 'none'}\n';
+          }
+
+          await NotificationService.show(
+            '${isNewTask ? "New task" : "Task change"}: ${title ?? "Task($taskId)"}',
+            body,
+          );
+        }
+      }
+    });
   }
 
   static Future<void> execute(String method, String args) async {

app/lib/main.dart

@@ -15,6 +15,7 @@ import 'package:stride/bridge/api/plugin_manager.dart' as pm;
 import 'package:stride/bridge/api/settings.dart';
 import 'package:stride/bridge/frb_generated.dart';
 import 'package:stride/context.dart';
+import 'package:stride/notifications.dart';
 import 'package:stride/routes/initial_route.dart';
 import 'package:stride/routes/logging_routes.dart';
 import 'package:stride/routes/tasks_route.dart';
@@ -52,6 +53,7 @@ Future<void> main() async {
   await RustContext.init();
 
   await Background.init();
+  await NotificationService.init();
 
   final pluginPath = path.join(supportPath, 'plugins');
   await pm.load(pluginPath: pluginPath);

app/lib/notifications.dart

@@ -0,0 +1,75 @@
+import 'dart:io';
+import 'dart:math';
+
+import 'package:flutter_local_notifications/flutter_local_notifications.dart';
+
+class NotificationService {
+  static final FlutterLocalNotificationsPlugin _plugin =
+      FlutterLocalNotificationsPlugin();
+
+  static Future<void> init() async {
+    const androidSettings = AndroidInitializationSettings(
+      '@mipmap/ic_launcher',
+    );
+    const iosSettings = DarwinInitializationSettings(
+      requestAlertPermission: true,
+      requestBadgePermission: true,
+      requestSoundPermission: true,
+    );
+    const macosSettings = DarwinInitializationSettings(
+      requestAlertPermission: true,
+      requestBadgePermission: true,
+      requestSoundPermission: true,
+    );
+
+    const linuxSettings = LinuxInitializationSettings(
+      defaultActionName: 'Stride',
+    );
+
+    const settings = InitializationSettings(
+      android: androidSettings,
+      iOS: iosSettings,
+      macOS: macosSettings,
+      linux: linuxSettings,
+    );
+
+    await _plugin.initialize(settings: settings);
+  }
+
+  static Future<void> show(String title, String? body) async {
+    if (Platform.isAndroid) {
+      await _plugin
+          .resolvePlatformSpecificImplementation<
+            AndroidFlutterLocalNotificationsPlugin
+          >()!
+          .requestNotificationsPermission();
+    }
+
+    final androidDetails = AndroidNotificationDetails(
+      'stride_background',
+      'Background notifications',
+      channelDescription: 'Notifications about background activities.',
+      importance: Importance.max,
+      priority: Priority.high,
+      ticker: 'Stride background notification',
+    );
+
+    final details = NotificationDetails(
+      android: androidDetails,
+      iOS: const DarwinNotificationDetails(),
+      macOS: const DarwinNotificationDetails(),
+      linux: const LinuxNotificationDetails(),
+    );
+
+    final uniqueId =
+        DateTime.now().millisecondsSinceEpoch.remainder(100000) * 100 +
+        Random().nextInt(100);
+
+    await _plugin.show(
+      id: uniqueId,
+      title: title,
+      body: body,
+      notificationDetails: details,
+    );
+  }
+}

app/lib/widgets/custom_app_bar.dart

@@ -85,6 +85,7 @@ class CustomAppBar extends StatelessWidget implements PreferredSizeWidget {
                     } else if (output.error != null) {
                       return Icon(Icons.sync_problem);
                     } else if (output.done) {
+                      context.read<TaskBloc>().add(TaskFetchEvent());
                       return Icon(Icons.sync);
                     } else {
                       return const InfiniteRotationAnimation(

app/macos/Flutter/GeneratedPluginRegistrant.swift

@@ -6,11 +6,13 @@ import FlutterMacOS
 import Foundation
 
 import file_picker
+import flutter_local_notifications
 import url_launcher_macos
 import workmanager_apple
 
 func RegisterGeneratedPlugins(registry: FlutterPluginRegistry) {
   FilePickerPlugin.register(with: registry.registrar(forPlugin: "FilePickerPlugin"))
+  FlutterLocalNotificationsPlugin.register(with: registry.registrar(forPlugin: "FlutterLocalNotificationsPlugin"))
   UrlLauncherPlugin.register(with: registry.registrar(forPlugin: "UrlLauncherPlugin"))
   WorkmanagerPlugin.register(with: registry.registrar(forPlugin: "WorkmanagerPlugin"))
 }

app/pubspec.lock

@@ -221,10 +221,10 @@ packages:
     dependency: transitive
     description:
       name: dbus
-      sha256: "792974a4007974fbc5c1b5433eb2330a9db3e368c3f906253af4c007d0f49a91"
+      sha256: "0ce9b0a839e6dee59a37a623d2fc26a35bbbe6404213e419b0d6411023d62645"
       url: "https://pub.dev"
     source: hosted
-    version: "0.7.13"
+    version: "0.7.14"
   fake_async:
     dependency: transitive
     description:
@@ -294,6 +294,46 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "6.0.0"
+  flutter_local_notifications:
+    dependency: "direct main"
+    description:
+      name: flutter_local_notifications
+      sha256: "1447ba911c60f2ba3f25dae1af151ec187162566b0f57e37771bf0b400f013ad"
+      url: "https://pub.dev"
+    source: hosted
+    version: "22.3.0"
+  flutter_local_notifications_linux:
+    dependency: transitive
+    description:
+      name: flutter_local_notifications_linux
+      sha256: "9ca97e63776f29ab1b955725c09999fc2c150523269db150c39274f2a43c5a8b"
+      url: "https://pub.dev"
+    source: hosted
+    version: "8.0.1"
+  flutter_local_notifications_platform_interface:
+    dependency: transitive
+    description:
+      name: flutter_local_notifications_platform_interface
+      sha256: "43c3761d916c9bd3d5c7ebbc44d82f4990329840c0c5d62ad5260cc1b5d399bd"
+      url: "https://pub.dev"
+    source: hosted
+    version: "12.2.0"
+  flutter_local_notifications_web:
+    dependency: transitive
+    description:
+      name: flutter_local_notifications_web
+      sha256: "516afaf97a2d1e67a036c6617321b00d205d72f7a67b6eccf936cd565f985878"
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.0.0"
+  flutter_local_notifications_windows:
+    dependency: transitive
+    description:
+      name: flutter_local_notifications_windows
+      sha256: "6f43bdd03b171b7a90f22647506fea33e2bb12294b7c7c7a3d690e960a382945"
+      url: "https://pub.dev"
+    source: hosted
+    version: "3.1.1"
   flutter_native_splash:
     dependency: "direct main"
     description:
@@ -412,10 +452,10 @@ packages:
     dependency: transitive
     description:
       name: image
-      sha256: "6300175e00616bbc832e2fc91bfa4d776af5402c81c7151bee6905bb08473c52"
+      sha256: f9881ff4998044947ec38d098bc7c8316ae1186fa786eddffdb867b9bc94dfce
       url: "https://pub.dev"
     source: hosted
-    version: "4.9.1"
+    version: "4.8.0"
   intersperse:
     dependency: "direct main"
     description:
@@ -804,6 +844,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "0.7.12"
+  timezone:
+    dependency: transitive
+    description:
+      name: timezone
+      sha256: "981d1020d6ef8fe1e7b3de5054e5b25579ae7c403d7734adc508ffc47668e9cb"
+      url: "https://pub.dev"
+    source: hosted
+    version: "0.11.1"
   typed_data:
     dependency: transitive
     description:
@@ -1008,10 +1056,10 @@ packages:
     dependency: transitive
     description:
       name: xml
-      sha256: "67f0aff7be013d107995e9b75bf4e7f2c3ef2dfdb2c8e68024bba0a7fd5756a4"
+      sha256: "971043b3a0d3da28727e40ed3e0b5d18b742fa5a68665cca88e74b7876d5e025"
       url: "https://pub.dev"
     source: hosted
-    version: "7.0.1"
+    version: "6.6.1"
   yaml:
     dependency: transitive
     description:

app/pubspec.yaml

@@ -4,7 +4,7 @@ publish_to: "none"
 homepage: https://github.com/stride-tasks/stride
 repository: https://github.com/stride-tasks/stride
 
-version: 0.0.1+1
+version: 0.0.1+2
 
 environment:
   sdk: ">=3.10.0 <4.0.0"
@@ -33,6 +33,7 @@ dependencies:
   flutter_native_splash: ^2.4.8
   workmanager: ^0.10.7
   async: ^2.13.0
+  flutter_local_notifications: ^22.3.0
 
 dev_dependencies:
   flutter_test:

app/windows/flutter/generated_plugins.cmake

@@ -7,6 +7,7 @@ list(APPEND FLUTTER_PLUGIN_LIST
 )
 
 list(APPEND FLUTTER_FFI_PLUGIN_LIST
+  flutter_local_notifications_windows
   jni
   stride_flutter_bridge
 )