local notifications integrated

android/app/build.gradle

@@ -93,4 +93,7 @@ flutter {
 dependencies {
     implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"
     implementation platform('com.google.firebase:firebase-bom:31.5.0')
+    coreLibraryDesugaring 'com.android.tools:desugar_jdk_libs:1.1.5'
+    implementation 'androidx.window:window:1.0.0'
+    implementation 'androidx.window:window-java:1.0.0'
 }

android/app/src/main/AndroidManifest.xml

@@ -5,6 +5,7 @@
     <uses-permission android:name="android.permission.READ_CALENDAR" />
     <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
     <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
+    <uses-permission android:name="android.permission.POST_NOTIFICATIONS"/>
    <application
         android:label="lifelist"
         android:name="${applicationName}"

lib/constants/consts.dart

@@ -66,6 +66,10 @@ const DONE = 'Done';
 const CREATE = 'Create';
 const FEEDBACK_EMAIL = '[email protected]';
 const FEEDBACK = 'Feedback';
+const NOTIFICATION_CHANNEL_ID = 'streak1';
+const NOTIFICATION_CHANNEL_NAME = 'streak';
+const NOTIFICATION_CHANNEL_DESCRIPTION = 'Notification for streak reminder';
+const APP_LOGO = 'app_logo';
 int currIndex = 0;
 String appVersion = '0.0.0';
 var routes = <String, WidgetBuilder>{
@@ -124,7 +128,7 @@ Map<String, BucketCategory> stringToBucketCategory = {
 };
 
 Map<BucketCategory, String> bucketCategoryToString = {
-   BucketCategory.travel: 'Travel',
+  BucketCategory.travel: 'Travel',
   BucketCategory.finance: 'Finance',
   BucketCategory.adventure: 'Adventure',
   BucketCategory.career: 'Career',

lib/main.dart

@@ -2,15 +2,16 @@ import 'package:firebase_core/firebase_core.dart';
 import 'package:flutter/material.dart';
 import 'package:lifelist/constants/index.dart';
 import 'package:lifelist/services/index.dart';
+import 'package:lifelist/services/notificationservice.dart';
 import 'package:lifelist/services/pdfservice.dart';
-import 'package:lifelist/services/singletemplateservice.dart';
 import 'package:package_info_plus/package_info_plus.dart';
 import 'package:provider/provider.dart';
 import 'package:flutter_gen/gen_l10n/app_localizations.dart';
 
 void main() async {
   WidgetsFlutterBinding.ensureInitialized();
-   await Firebase.initializeApp();
+  await NotificationService().init();
+  await Firebase.initializeApp();
   PackageInfo packageInfo = await PackageInfo.fromPlatform();
   appVersion = packageInfo.version;
   dbService = DBService();

lib/services/bucketlistservice.dart

@@ -1,7 +1,6 @@
 import 'package:flutter/material.dart';
 import 'package:lifelist/controllers/global_controller.dart';
 import 'package:lifelist/models/bucket.dart';
-import 'package:lifelist/services/firebaseservice.dart';
 
 class BucketListService extends ChangeNotifier {
   List<Bucket?> buckets = [];
@@ -43,15 +42,15 @@ class BucketListService extends ChangeNotifier {
 
   measureTimeLeft() {
     filteredBuckets.forEach((element) {
-        if(element!.isCompleted){
-          element.timeLeft = "Done";
-          return;
-        }
-      if(element.bucketScope == BucketScope.onetime){
+      if (element!.isCompleted) {
+        element.timeLeft = "Done";
+        return;
+      }
+      if (element.bucketScope == BucketScope.onetime) {
         if (element.deadline.isBefore(DateTime.now())) {
           element.timeLeft = "Expired";
           return;
-      }
+        }
       }
       Duration difference = element.deadline.difference(DateTime.now());
       if (difference.inDays > 0) {

lib/services/notificationservice.dart

@@ -0,0 +1,49 @@
+import 'package:flutter_local_notifications/flutter_local_notifications.dart';
+import 'package:lifelist/constants/index.dart';
+import 'package:lifelist/utils/utils.dart';
+
+class NotificationService {
+  static final NotificationService _notificationService =
+      NotificationService._internal();
+  FlutterLocalNotificationsPlugin flutterLocalNotificationsPlugin =
+      FlutterLocalNotificationsPlugin();
+  factory NotificationService() {
+    return _notificationService;
+  }
+
+  NotificationService._internal();
+
+  Future<void> init() async {
+    const AndroidInitializationSettings initializationSettingsAndroid =
+        AndroidInitializationSettings(APP_LOGO);
+
+    const InitializationSettings initializationSettings =
+        InitializationSettings(
+            android: initializationSettingsAndroid, iOS: null, macOS: null);
+    flutterLocalNotificationsPlugin = FlutterLocalNotificationsPlugin();
+    bool? isPermissionGranted = await flutterLocalNotificationsPlugin
+        .resolvePlatformSpecificImplementation<
+            AndroidFlutterLocalNotificationsPlugin>()
+        ?.requestPermission();
+    if (isPermissionGranted == true) {
+      await flutterLocalNotificationsPlugin.initialize(initializationSettings);
+    }
+  }
+
+  void scheduleNotification(String title, String body, int id, bool isCompleted,
+      DateTime deadline) async {
+    final timeToNotify = getNotificationScheduleTime(deadline, isCompleted);
+    await flutterLocalNotificationsPlugin.zonedSchedule(
+        id,
+        title,
+        body,
+        timeToNotify,
+        const NotificationDetails(
+            android: AndroidNotificationDetails(
+                NOTIFICATION_CHANNEL_ID, NOTIFICATION_CHANNEL_NAME,
+                channelDescription: NOTIFICATION_CHANNEL_DESCRIPTION)),
+        androidScheduleMode: AndroidScheduleMode.exactAllowWhileIdle,
+        uiLocalNotificationDateInterpretation:
+            UILocalNotificationDateInterpretation.absoluteTime);
+  }
+}

lib/services/singlebucketservice.dart

@@ -3,6 +3,7 @@ import 'package:fluttertoast/fluttertoast.dart';
 import 'package:lifelist/constants/index.dart';
 import 'package:lifelist/models/index.dart';
 import 'package:flutter_gen/gen_l10n/app_localizations.dart';
+import 'package:lifelist/services/notificationservice.dart';
 import '../controllers/global_controller.dart';
 
 class BucketService extends ChangeNotifier {
@@ -199,6 +200,15 @@ class BucketService extends ChangeNotifier {
     activeSingleBucket.tasks = activeSingleBucket.tasks.toList();
     activeSingleBucket.tasks.addAll(newTasksId);
     await editBucketinDB(activeSingleBucket);
+    String notificationTitle = 'STREAK WILL END SOON! ⌛️';
+    String notificationBody =
+        "Time to finish ${activeSingleBucket.name} bucket for today ✓";
+    NotificationService().scheduleNotification(
+        notificationTitle,
+        notificationBody,
+        activeSingleBucket.id!,
+        activeSingleBucket.isCompleted,
+        activeSingleBucket.deadline);
     activeBucketTasks = [];
     loader = false;
     notifyListeners();

lib/utils/utils.dart

@@ -1,5 +1,20 @@
+import 'package:timezone/data/latest_all.dart' as tz;
+import 'package:timezone/timezone.dart' as tz;
+
 int daysBetween(DateTime froms, DateTime to) {
   froms = DateTime(froms.year, froms.month, froms.day);
   to = DateTime(to.year, to.month, to.day);
   return (to.difference(froms).inHours / 24).round();
 }
+
+tz.TZDateTime getNotificationScheduleTime(DateTime deadline, bool isCompleted) {
+  final timeZoneName = tz.TimeZone.UTC.abbreviation;
+  tz.initializeTimeZones();
+  tz.setLocalLocation(tz.getLocation(timeZoneName));
+  tz.Location location = tz.getLocation(timeZoneName);
+  final scheduledDate = tz.TZDateTime.from(deadline, location);
+  tz.TZDateTime timeToNotify = isCompleted
+      ? scheduledDate.add(const Duration(hours: 23))
+      : scheduledDate.subtract(const Duration(hours: 1));
+  return timeToNotify;
+}

pubspec.lock

@@ -265,6 +265,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "1.1.0"
+  dbus:
+    dependency: transitive
+    description:
+      name: dbus
+      sha256: "6f07cba3f7b3448d42d015bfd3d53fe12e5b36da2423f23838efc1d5fb31a263"
+      url: "https://pub.dev"
+    source: hosted
+    version: "0.7.8"
   dependencies:
     dependency: "direct main"
     description:
@@ -374,6 +382,30 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "2.0.1"
+  flutter_local_notifications:
+    dependency: "direct main"
+    description:
+      name: flutter_local_notifications
+      sha256: "2876372952b65ca7f684e698eba22bda1cf581fa071dd30ba2f01900f507d0d1"
+      url: "https://pub.dev"
+    source: hosted
+    version: "14.0.0+1"
+  flutter_local_notifications_linux:
+    dependency: transitive
+    description:
+      name: flutter_local_notifications_linux
+      sha256: "909bb95de05a2e793503a2437146285a2f600cd0b3f826e26b870a334d8586d7"
+      url: "https://pub.dev"
+    source: hosted
+    version: "4.0.0"
+  flutter_local_notifications_platform_interface:
+    dependency: transitive
+    description:
+      name: flutter_local_notifications_platform_interface
+      sha256: "63235c42de5b6c99846969a27ad0209c401e6b77b0498939813725b5791c107c"
+      url: "https://pub.dev"
+    source: hosted
+    version: "7.0.0"
   flutter_localizations:
     dependency: "direct main"
     description: flutter
@@ -645,6 +677,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "5.1.0"
+  platform:
+    dependency: transitive
+    description:
+      name: platform
+      sha256: "4a451831508d7d6ca779f7ac6e212b4023dd5a7d08a27a63da33756410e32b76"
+      url: "https://pub.dev"
+    source: hosted
+    version: "3.1.0"
   plugin_platform_interface:
     dependency: transitive
     description:
@@ -669,6 +709,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "1.5.1"
+  process:
+    dependency: transitive
+    description:
+      name: process
+      sha256: "53fd8db9cec1d37b0574e12f07520d582019cb6c44abf5479a01505099a34a09"
+      url: "https://pub.dev"
+    source: hosted
+    version: "4.2.4"
   provider:
     dependency: "direct main"
     description:
@@ -802,6 +850,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "2.1.3"
+  timezone:
+    dependency: "direct main"
+    description:
+      name: timezone
+      sha256: "1cfd8ddc2d1cfd836bc93e67b9be88c3adaeca6f40a00ca999104c30693cdca0"
+      url: "https://pub.dev"
+    source: hosted
+    version: "0.9.2"
   timing:
     dependency: transitive
     description:
@@ -922,6 +978,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "4.1.3"
+  xdg_directories:
+    dependency: transitive
+    description:
+      name: xdg_directories
+      sha256: ee1505df1426458f7f60aac270645098d318a8b4766d85fde75f76f2e21807d1
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.0.0"
   xml:
     dependency: transitive
     description:

pubspec.yaml

@@ -54,6 +54,8 @@ dependencies:
   flutter_email_sender: ^5.2.0
   cloud_firestore: ^4.5.3
   firebase_core: ^2.10.0
+  flutter_local_notifications: ^14.0.0+1
+  timezone: ^0.9.2
 
 
 dev_dependencies: