Handle Late Notifications as missed calls

.lh/lib/service/notification_service.dart.json

@@ -0,0 +1,18 @@
+{
+    "sourceFile": "lib/service/notification_service.dart",
+    "activeCommit": 0,
+    "commits": [
+        {
+            "activePatchIndex": 0,
+            "patches": [
+                {
+                    "date": 1731272573644,
+                    "content": "Index: \n===================================================================\n--- \n+++ \n"
+                }
+            ],
+            "date": 1731272573644,
+            "name": "Commit-0",
+            "content": "import 'dart:convert';\nimport 'package:firebase_messaging/firebase_messaging.dart';\nimport 'package:flutter/foundation.dart';\nimport 'package:flutter_callkit_incoming/entities/android_params.dart';\nimport 'package:flutter_callkit_incoming/entities/call_kit_params.dart';\nimport 'package:flutter_callkit_incoming/entities/ios_params.dart';\nimport 'package:flutter_callkit_incoming/entities/notification_params.dart';\nimport 'package:flutter_callkit_incoming/flutter_callkit_incoming.dart';\nimport 'package:uuid/uuid.dart';\nimport 'package:logger/logger.dart';\nimport 'package:telnyx_webrtc/model/push_notification.dart';\n\n\nclass NotificationService {\n\n  static Future showNotification(RemoteMessage message) async {\n    var logger = Logger();\n    print('Received Incoming NotificationService!');\n    logger.i('Received Incoming NotificationService! from background');\n    var metadata = PushMetaData.fromJson(jsonDecode(message.data[\"metadata\"]));\n    var received = message.data[\"message\"];\n    var currentUuid = const Uuid().v4();\n\n\n    CallKitParams callKitParams = CallKitParams(\n      id: currentUuid,\n      nameCaller: metadata.caller_name,\n      appName: 'Telnyx Flutter Voice',\n      avatar: 'https://i.pravatar.cc/100',\n      handle: metadata.caller_number,\n      type: 0,\n      textAccept: 'Accept',\n      textDecline: 'Decline',\n      missedCallNotification: const NotificationParams(\n        showNotification: true,\n        isShowCallback: true,\n        subtitle: 'Missed call',\n        callbackText: 'Call back',\n      ),\n      duration: 30000,\n      extra: message.data,\n      headers: <String, dynamic>{'platform': 'flutter'},\n      android: const AndroidParams(\n          isCustomNotification: true,\n          isShowLogo: false,\n          ringtonePath: 'system_ringtone_default',\n          backgroundColor: '#0955fa',\n          backgroundUrl: 'https://i.pravatar.cc/500',\n          actionColor: '#4CAF50',\n          textColor: '#ffffff',\n          incomingCallNotificationChannelName: \"Incoming Call\",\n          missedCallNotificationChannelName: \"Missed Call\"),\n      ios: const IOSParams(\n        iconName: 'CallKitLogo',\n        handleType: 'generic',\n        supportsVideo: true,\n        maximumCallGroups: 2,\n        maximumCallsPerCallGroup: 1,\n        audioSessionMode: 'default',\n        audioSessionActive: true,\n        audioSessionPreferredSampleRate: 44100.0,\n        audioSessionPreferredIOBufferDuration: 0.005,\n        supportsDTMF: true,\n        supportsHolding: true,\n        supportsGrouping: false,\n        supportsUngrouping: false,\n        ringtonePath: 'system_ringtone_default',\n      ),\n    );\n\n\n    await FlutterCallkitIncoming.showCallkitIncoming(callKitParams);\n  }\n\n  static Future showMissedCallNotification(RemoteMessage message) async {\n    var logger = Logger();\n    print('Received Incoming NotificationService!');\n    logger.i('Received Incoming NotificationService! from background');\n    var metadata = PushMetaData.fromJson(jsonDecode(message.data[\"metadata\"]));\n    var received = message.data[\"message\"];\n    var currentUuid = const Uuid().v4();\n\n\n    CallKitParams callKitParams = CallKitParams(\n      id: currentUuid,\n      nameCaller: metadata.caller_name,\n      appName: 'Telnyx Flutter Voice',\n      avatar: 'https://i.pravatar.cc/100',\n      handle: metadata.caller_number,\n      type: 0,\n      textAccept: 'Accept',\n      textDecline: 'Decline',\n      missedCallNotification: const NotificationParams(\n        showNotification: true,\n        isShowCallback: true,\n        subtitle: 'Missed call',\n        callbackText: 'Call back',\n      ),\n      duration: 30000,\n      extra: message.data,\n      headers: <String, dynamic>{'platform': 'flutter'},\n      android: const AndroidParams(\n          isCustomNotification: true,\n          isShowLogo: false,\n          ringtonePath: 'system_ringtone_default',\n          backgroundColor: '#0955fa',\n          backgroundUrl: 'https://i.pravatar.cc/500',\n          actionColor: '#4CAF50',\n          textColor: '#ffffff',\n          incomingCallNotificationChannelName: \"Incoming Call\",\n          missedCallNotificationChannelName: \"Missed Call\"),\n      ios: const IOSParams(\n        iconName: 'CallKitLogo',\n        handleType: 'generic',\n        supportsVideo: true,\n        maximumCallGroups: 2,\n        maximumCallsPerCallGroup: 1,\n        audioSessionMode: 'default',\n        audioSessionActive: true,\n        audioSessionPreferredSampleRate: 44100.0,\n        audioSessionPreferredIOBufferDuration: 0.005,\n        supportsDTMF: true,\n        supportsHolding: true,\n        supportsGrouping: false,\n        supportsUngrouping: false,\n        ringtonePath: 'system_ringtone_default',\n      ),\n    );\n\n\n    await FlutterCallkitIncoming.showMissCallNotification(callKitParams);\n  }\n}\n"
+        }
+    ]
+}

.lh/lib/view/screen/home_screen.dart.json

@@ -3,7 +3,7 @@
     "activeCommit": 0,
     "commits": [
         {
-            "activePatchIndex": 1,
+            "activePatchIndex": 2,
             "patches": [
                 {
                     "date": 1730906592729,
@@ -12,6 +12,10 @@
                 {
                     "date": 1730980825909,
                     "content": "Index: \n===================================================================\n--- \n+++ \n@@ -22,9 +22,9 @@\n \n   @override\n   void initState() {\n     super.initState();\n-    destinationController.text = 'isaac33882';\n+    destinationController.text = 'isaac33882destination_number_here';\n   }\n \n   void _observeResponses() {\n     Provider.of<MainViewModel>(context, listen: true).observeResponses();\n"
+                },
+                {
+                    "date": 1731267138541,
+                    "content": "Index: \n===================================================================\n--- \n+++ \n@@ -22,9 +22,9 @@\n \n   @override\n   void initState() {\n     super.initState();\n-    destinationController.text = 'isaac33882destination_number_here';\n+    destinationController.text = 'isaac33882';\n   }\n \n   void _observeResponses() {\n     Provider.of<MainViewModel>(context, listen: true).observeResponses();\n"
                 }
             ],
             "date": 1730906592729,

README.md

@@ -422,6 +422,23 @@ In order to end a call, we can get a stored instance of Call and call the .endCa
     }
 ```
 
+### Handling Late Notifications 
+If notifcations arrive very late due to no internet connectivity, It is good to always flag it as a missed call. You can do that using the 
+code snippet below : 
+
+```dart
+const CALL_MISSED_TIMEOUT = 60;
+
+ DateTime nowTime = DateTime.now();
+ Duration? difference = nowTime?.difference(message.sentTime!);
+
+ if (difference.inSeconds > CALL_MISSED_TIMEOUT) {
+    NotificationService.showMissedCallNotification(message);
+    return;
+}
+```
+
+
 ### DTMF (Dual Tone Multi Frequency)
 
 In order to send a DTMF message while on a call you can call the .dtmf(callID, tone), method where tone is a String value of the character you would like pressed:

lib/main.dart

@@ -275,6 +275,21 @@ class _MyAppState extends State<MyApp> {
       // Android Only - Push Notifications
       FirebaseMessaging.onMessage.listen((RemoteMessage message) {
         logger.i('OnMessage :: Notification Message: ${message.data}');
+        DateTime nowTime = DateTime.now();
+        Duration? difference = nowTime?.difference(message.sentTime!);
+
+        if (difference != null) {
+          logger.i(
+              'OnMessage :: Notification difference: ${difference.inSeconds}');
+          if (difference.inSeconds > CALL_MISSED_TIMEOUT) {
+            logger.i('OnMessage :: Notification Message: Missed Call');
+            // You can simulate a missed call here
+            NotificationService.showMissedCallNotification(message);
+            return;
+          }
+        }
+
+        logger.i('OnMessage Time :: Notification Message: ${message.sentTime}');
         TelnyxClient.setPushMetaData(message.data);
         NotificationService.showNotification(message);
         mainViewModel.callFromPush = true;

lib/service/notification_service.dart

@@ -10,9 +10,7 @@ import 'package:uuid/uuid.dart';
 import 'package:logger/logger.dart';
 import 'package:telnyx_webrtc/model/push_notification.dart';
 
-
 class NotificationService {
-
   static Future showNotification(RemoteMessage message) async {
     var logger = Logger();
     print('Received Incoming NotificationService!');
@@ -21,7 +19,6 @@ class NotificationService {
     var received = message.data["message"];
     var currentUuid = const Uuid().v4();
 
-
     CallKitParams callKitParams = CallKitParams(
       id: currentUuid,
       nameCaller: metadata.caller_name,
@@ -68,7 +65,63 @@ class NotificationService {
       ),
     );
 
-
     await FlutterCallkitIncoming.showCallkitIncoming(callKitParams);
   }
+
+  static Future showMissedCallNotification(RemoteMessage message) async {
+    var logger = Logger();
+    print('Received Incoming NotificationService!');
+    logger.i('Received Incoming NotificationService! from background');
+    var metadata = PushMetaData.fromJson(jsonDecode(message.data["metadata"]));
+    var received = message.data["message"];
+    var currentUuid = const Uuid().v4();
+
+    CallKitParams callKitParams = CallKitParams(
+      id: currentUuid,
+      nameCaller: metadata.caller_name,
+      appName: 'Telnyx Flutter Voice',
+      avatar: 'https://i.pravatar.cc/100',
+      handle: metadata.caller_number,
+      type: 0,
+      textAccept: 'Accept',
+      textDecline: 'Decline',
+      missedCallNotification: const NotificationParams(
+        showNotification: true,
+        isShowCallback: true,
+        subtitle: 'Missed call',
+        callbackText: 'Call back',
+      ),
+      duration: 30000,
+      extra: message.data,
+      headers: <String, dynamic>{'platform': 'flutter'},
+      android: const AndroidParams(
+          isCustomNotification: true,
+          isShowLogo: false,
+          ringtonePath: 'system_ringtone_default',
+          backgroundColor: '#0955fa',
+          backgroundUrl: 'https://i.pravatar.cc/500',
+          actionColor: '#4CAF50',
+          textColor: '#ffffff',
+          incomingCallNotificationChannelName: "Incoming Call",
+          missedCallNotificationChannelName: "Missed Call"),
+      ios: const IOSParams(
+        iconName: 'CallKitLogo',
+        handleType: 'generic',
+        supportsVideo: true,
+        maximumCallGroups: 2,
+        maximumCallsPerCallGroup: 1,
+        audioSessionMode: 'default',
+        audioSessionActive: true,
+        audioSessionPreferredSampleRate: 44100.0,
+        audioSessionPreferredIOBufferDuration: 0.005,
+        supportsDTMF: true,
+        supportsHolding: true,
+        supportsGrouping: false,
+        supportsUngrouping: false,
+        ringtonePath: 'system_ringtone_default',
+      ),
+    );
+
+    await FlutterCallkitIncoming.showMissCallNotification(callKitParams);
+  }
 }

lib/view/screen/home_screen.dart

@@ -23,7 +23,7 @@ class _HomeScreenState extends State<HomeScreen> {
   @override
   void initState() {
     super.initState();
-    destinationController.text = 'isaac33882destination_number_here';
+    destinationController.text = 'isaac33882';
   }
 
   void _observeResponses() {