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zaelgoharyzaelgohary
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Add notifications screen (#1019)
* Add notifications screen * Add loading state, edit icon, refactor checkNodeStatus * Replace node status notification logic to notifications user data * Ignore reflectable files, remove print
1 parent 3bc046f commit 71d750b

8 files changed

Lines changed: 226 additions & 34 deletions

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‎app/lib/apps/notifications/notifications.dart‎

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import 'package:flutter/material.dart';
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import 'package:threebotlogin/app.dart';
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import 'package:threebotlogin/apps/farmers/farmers_user_data.dart';
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import 'package:threebotlogin/events/events.dart';
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import 'package:threebotlogin/events/go_home_event.dart';
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import 'package:threebotlogin/screens/notifications_screen.dart';
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class Notifications implements App {
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static final Notifications _singleton = Notifications._internal();
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static const Widget _notificationsWidget = NotificationsScreen();
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factory Notifications() {
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return _singleton;
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}
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Notifications._internal();
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@override
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Future<Widget> widget() async {
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return _notificationsWidget;
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}
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@override
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void clearData() {
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clearAllData();
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}
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@override
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bool emailVerificationRequired() {
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return true;
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}
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@override
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bool pinRequired() {
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return true;
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}
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@override
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void back() {
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Events().emit(GoHomeEvent());
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}
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} // TODO Implement this library.

‎app/lib/apps/notifications/notifications_user_data.dart‎

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import 'package:shared_preferences/shared_preferences.dart';
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import 'package:threebotlogin/helpers/logger.dart';
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const String nodeStatusNotificationEnabledKey = 'nodeStatusNotificationEnabled';
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Future<List<String>?> getNotificationSettings() async {
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final prefs = await SharedPreferences.getInstance();
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var notifications = prefs.getStringList('notifications');
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return notifications;
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}
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Future<bool> isNodeStatusNotificationEnabled() async {
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try {
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final prefs = await SharedPreferences.getInstance();
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return prefs.getBool(nodeStatusNotificationEnabledKey) ?? true;
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} catch (e) {
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return true;
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}
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}
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Future<void> setNodeStatusNotificationEnabled(bool value) async {
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try {
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final prefs = await SharedPreferences.getInstance();
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await prefs.setBool(nodeStatusNotificationEnabledKey, value);
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} catch (e) {
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logger.e('Error saving notification preference: $e');
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}
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}

‎app/lib/jrouter.dart‎

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Original file line numberDiff line numberDiff line change
@@ -6,7 +6,7 @@ import 'package:threebotlogin/apps/wallet/wallet.dart';
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import 'package:threebotlogin/screens/identity_verification_screen.dart';
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import 'package:threebotlogin/screens/preference_screen.dart';
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import 'package:threebotlogin/screens/registered_screen.dart';
9-
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import 'package:threebotlogin/apps/notifications/notifications.dart';
1010
import 'apps/farmers/farmers.dart';
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import 'apps/news/news.dart';
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import 'apps/sign/sign.dart';
@@ -95,6 +95,14 @@ class JRouter {
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view: await Sign().widget(),
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),
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app: Sign()),
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AppInfo(
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route: Route(
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path: '/notifications',
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name: 'Notifications',
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icon: Icons.notifications,
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view: await Notifications().widget(),
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),
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app: null),
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];
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}
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‎app/lib/main.dart‎

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Original file line numberDiff line numberDiff line change
@@ -71,7 +71,7 @@ Future<void> main() async {
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),
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(String taskId) async {
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logger.i('[BackgroundFetch] Task: $taskId');
74-
await checkNodeStatus();
74+
await checkNodeStatus(taskId);
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BackgroundFetch.finish(taskId);
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},
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(String taskId) async {

‎app/lib/screens/notifications_screen.dart‎

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import 'package:flutter/material.dart';
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import 'package:threebotlogin/apps/notifications/notifications_user_data.dart';
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import 'package:threebotlogin/widgets/layout_drawer.dart';
4+
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class NotificationsScreen extends StatefulWidget {
6+
const NotificationsScreen({super.key});
7+
8+
@override
9+
_NotificationsScreenState createState() => _NotificationsScreenState();
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}
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class _NotificationsScreenState extends State<NotificationsScreen> {
13+
bool loading = true;
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late bool _nodeStatusNotificationEnabled;
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@override
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void initState() {
18+
super.initState();
19+
_loadNotificationPreference();
20+
}
21+
22+
void _loadNotificationPreference() async {
23+
final bool enabled = await isNodeStatusNotificationEnabled();
24+
setState(() {
25+
_nodeStatusNotificationEnabled = enabled;
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loading = false;
27+
});
28+
}
29+
30+
@override
31+
Widget build(BuildContext context) {
32+
return LayoutDrawer(
33+
titleText: 'Notifications',
34+
content: _buildNotificationSettings(),
35+
);
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}
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Widget _buildNotificationSettings() {
39+
return Padding(
40+
padding: const EdgeInsets.symmetric(vertical: 16.0),
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child: loading
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? Center(
43+
child: Column(
44+
mainAxisAlignment: MainAxisAlignment.center,
45+
children: [
46+
const CircularProgressIndicator(),
47+
const SizedBox(height: 15),
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Text(
49+
'Loading notifications settings...',
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style: Theme.of(context).textTheme.bodyLarge!.copyWith(
51+
color: Theme.of(context).colorScheme.onSurface,
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fontWeight: FontWeight.bold),
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),
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],
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),
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)
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: Column(
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mainAxisAlignment: MainAxisAlignment.start,
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crossAxisAlignment: CrossAxisAlignment.stretch,
60+
children: <Widget>[
61+
SwitchListTile(
62+
title: const Text('Enable node status notifications'),
63+
value: _nodeStatusNotificationEnabled,
64+
onChanged: (bool newValue) {
65+
setState(() {
66+
_nodeStatusNotificationEnabled = newValue;
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});
68+
setNodeStatusNotificationEnabled(newValue);
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},
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secondary: const Icon(Icons.monitor_heart),
71+
),
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],
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),
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);
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}
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}

‎app/lib/screens/registered_screen.dart‎

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@@ -117,6 +117,10 @@ class _RegisteredScreenState extends State<RegisteredScreen>
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children: [
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HomeCardWidget(
119119
name: 'Settings', icon: Icons.settings, pageNumber: 6),
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HomeCardWidget(
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name: 'Notifications',
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icon: Icons.notifications,
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pageNumber: 9),
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],
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),
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const SizedBox(height: 40),

‎app/lib/services/background_service.dart‎

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Original file line numberDiff line numberDiff line change
@@ -1,6 +1,9 @@
11
import 'package:background_fetch/background_fetch.dart';
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import 'package:threebotlogin/apps/notifications/notifications_user_data.dart';
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import 'package:threebotlogin/models/farm.dart';
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import 'package:threebotlogin/services/nodes_check_service.dart';
35
import 'notification_service.dart';
6+
import 'package:threebotlogin/helpers/logger.dart';
47

58
void backgroundFetchHeadlessTask(HeadlessTask task) async {
69
final String taskId = task.taskId;
@@ -10,50 +13,70 @@ void backgroundFetchHeadlessTask(HeadlessTask task) async {
1013
BackgroundFetch.finish(taskId);
1114
return;
1215
}
13-
await checkNodeStatus();
16+
final bool notificationsEnabled = await isNodeStatusNotificationEnabled();
1417

15-
BackgroundFetch.finish(taskId);
18+
logger.i(
19+
'Background Fetch Headless Task: $taskId, Notifications Enabled: $notificationsEnabled');
20+
21+
if (!notificationsEnabled) {
22+
logger.i(
23+
'[BackgroundFetch] Node status notifications are disabled. Finishing task: $taskId');
24+
BackgroundFetch.finish(taskId);
25+
return;
26+
}
27+
await checkNodeStatus(taskId);
1628
}
1729

18-
Future<void> checkNodeStatus() async {
19-
final offlineNodes = await NodeCheckService.pingNodesInBackground();
20-
if (offlineNodes.isEmpty) return;
30+
Future<void> checkNodeStatus(String taskId) async {
31+
try {
32+
final offlineNodes = await NodeCheckService.pingNodesInBackground();
2133

22-
final now = DateTime.now().millisecondsSinceEpoch;
23-
final sevenDaysAgoTimestamp =
24-
DateTime.now().subtract(const Duration(days: 7)).millisecondsSinceEpoch;
34+
if (offlineNodes.isEmpty) return;
2535

26-
final nodesToNotify = offlineNodes.where((node) {
27-
final nodeUpdatedAtMs = node.updatedAt! * 1000;
28-
if (nodeUpdatedAtMs <= sevenDaysAgoTimestamp) return false;
36+
final StringBuffer bodyBuffer = StringBuffer();
37+
final List<Node> nodesToNotify = [];
38+
final now = DateTime.now();
39+
final nowInMs = now.millisecondsSinceEpoch;
40+
final sevenDaysAgoTimestampMs =
41+
now.subtract(const Duration(days: 7)).millisecondsSinceEpoch;
2942

30-
final downtime = Duration(milliseconds: now - nodeUpdatedAtMs);
31-
final checkInterval = _getCheckInterval(downtime);
43+
for (final node in offlineNodes) {
44+
final nodeUpdatedAtMs = node.updatedAt! * 1000;
3245

33-
return downtime.inMinutes % checkInterval.inMinutes < 15;
34-
}).toList();
46+
if (nodeUpdatedAtMs <= sevenDaysAgoTimestampMs) continue;
3547

36-
if (nodesToNotify.isEmpty) return;
48+
final downtime = Duration(milliseconds: nowInMs - nodeUpdatedAtMs);
3749

38-
const groupKey = 'offline_nodes';
39-
final StringBuffer bodyBuffer = StringBuffer();
50+
final checkInterval = _getCheckInterval(downtime);
4051

41-
for (final node in nodesToNotify) {
42-
final nodeUpdatedAtMs = node.updatedAt! * 1000;
43-
final downtime =
44-
_formatDowntime(Duration(milliseconds: now - nodeUpdatedAtMs));
52+
bool passesIntervalCheck = false;
53+
if (downtime.inMinutes > 0 && checkInterval.inMinutes > 0) {
54+
passesIntervalCheck = downtime.inMinutes % checkInterval.inMinutes < 15;
55+
}
4556

46-
bodyBuffer.writeln('Node ${node.nodeId}: offline for $downtime');
47-
}
57+
if (passesIntervalCheck) {
58+
nodesToNotify.add(node);
59+
final formattedDowntime = _formatDowntime(downtime);
60+
bodyBuffer
61+
.writeln('Node ${node.nodeId}: offline for $formattedDowntime');
62+
}
63+
}
64+
65+
if (nodesToNotify.isEmpty) return;
4866

49-
await NotificationService().showNotification(
50-
id: nodesToNotify.hashCode,
51-
title: nodesToNotify.length == 1
52-
? 'Node Alert 🚨'
53-
: '${nodesToNotify.length} Nodes Offline 🚨',
54-
body: bodyBuffer.toString().trim(),
55-
groupKey: groupKey,
56-
);
67+
await NotificationService().showNotification(
68+
id: nodesToNotify.hashCode,
69+
title: nodesToNotify.length == 1
70+
? 'Node Alert 🚨'
71+
: '${nodesToNotify.length} Nodes Offline 🚨',
72+
body: bodyBuffer.toString().trim(),
73+
groupKey: 'offline_nodes',
74+
);
75+
} catch (e) {
76+
logger.e('Error in checkNodeStatus for task $taskId: $e');
77+
} finally {
78+
BackgroundFetch.finish(taskId);
79+
}
5780
}
5881

5982
Duration _getCheckInterval(Duration downtime) {

‎app/lib/widgets/layout_drawer.dart‎

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Original file line numberDiff line numberDiff line change
@@ -198,6 +198,17 @@ class _LayoutDrawerState extends State<LayoutDrawer> {
198198
globals.tabController.animateTo(7);
199199
},
200200
),
201+
ListTile(
202+
minLeadingWidth: 10,
203+
leading: const Padding(
204+
padding: EdgeInsets.only(left: 10),
205+
child: Icon(Icons.notifications, size: 18)),
206+
title: const Text('Notifications'),
207+
onTap: () {
208+
Navigator.pop(context);
209+
globals.tabController.animateTo(9);
210+
},
211+
),
201212
],
202213
),
203214
),

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