fix: resolve duplicate background notifications and format contact names in local notification titles

whatsapp_app/ios/Runner.xcodeproj/project.pbxproj

@@ -67,6 +67,7 @@
 		97C147001CF9000F007C117D /* Base */ = {isa = PBXFileReference; lastKnownFileType = file.storyboard; name = Base; path = Base.lproj/LaunchScreen.storyboard; sourceTree = "<group>"; };
 		97C147021CF9000F007C117D /* Info.plist */ = {isa = PBXFileReference; lastKnownFileType = text.plist.xml; path = Info.plist; sourceTree = "<group>"; };
 		BE672457097ACB02A0172419 /* Pods-RunnerTests.profile.xcconfig */ = {isa = PBXFileReference; includeInIndex = 1; lastKnownFileType = text.xcconfig; name = "Pods-RunnerTests.profile.xcconfig"; path = "Target Support Files/Pods-RunnerTests/Pods-RunnerTests.profile.xcconfig"; sourceTree = "<group>"; };
+		C67DFB872FBB6A460051E88E /* Runner.entitlements */ = {isa = PBXFileReference; lastKnownFileType = text.plist.entitlements; path = Runner.entitlements; sourceTree = "<group>"; };
 		F120D236BB7566D5DE73F0B9 /* Pods-Runner.release.xcconfig */ = {isa = PBXFileReference; includeInIndex = 1; lastKnownFileType = text.xcconfig; name = "Pods-Runner.release.xcconfig"; path = "Target Support Files/Pods-Runner/Pods-Runner.release.xcconfig"; sourceTree = "<group>"; };
 		F90E4DAFC6F0443563808446 /* Pods-Runner.debug.xcconfig */ = {isa = PBXFileReference; includeInIndex = 1; lastKnownFileType = text.xcconfig; name = "Pods-Runner.debug.xcconfig"; path = "Target Support Files/Pods-Runner/Pods-Runner.debug.xcconfig"; sourceTree = "<group>"; };
 /* End PBXFileReference section */
@@ -109,7 +110,6 @@
 				5FAD3FB76264405B9D466D11 /* Pods-RunnerTests.release.xcconfig */,
 				BE672457097ACB02A0172419 /* Pods-RunnerTests.profile.xcconfig */,
 			);
-			name = Pods;
 			path = Pods;
 			sourceTree = "<group>";
 		};
@@ -149,6 +149,7 @@
 		97C146F01CF9000F007C117D /* Runner */ = {
 			isa = PBXGroup;
 			children = (
+				C67DFB872FBB6A460051E88E /* Runner.entitlements */,
 				97C146FA1CF9000F007C117D /* Main.storyboard */,
 				97C146FD1CF9000F007C117D /* Assets.xcassets */,
 				97C146FF1CF9000F007C117D /* LaunchScreen.storyboard */,
@@ -478,6 +479,7 @@
 			buildSettings = {
 				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
 				CLANG_ENABLE_MODULES = YES;
+				CODE_SIGN_ENTITLEMENTS = Runner/Runner.entitlements;
 				CURRENT_PROJECT_VERSION = "$(FLUTTER_BUILD_NUMBER)";
 				DEVELOPMENT_TEAM = 63CVT8G5P8;
 				ENABLE_BITCODE = NO;
@@ -661,6 +663,7 @@
 			buildSettings = {
 				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
 				CLANG_ENABLE_MODULES = YES;
+				CODE_SIGN_ENTITLEMENTS = Runner/Runner.entitlements;
 				CURRENT_PROJECT_VERSION = "$(FLUTTER_BUILD_NUMBER)";
 				DEVELOPMENT_TEAM = 63CVT8G5P8;
 				ENABLE_BITCODE = NO;
@@ -684,6 +687,7 @@
 			buildSettings = {
 				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
 				CLANG_ENABLE_MODULES = YES;
+				CODE_SIGN_ENTITLEMENTS = Runner/Runner.entitlements;
 				CURRENT_PROJECT_VERSION = "$(FLUTTER_BUILD_NUMBER)";
 				DEVELOPMENT_TEAM = 63CVT8G5P8;
 				ENABLE_BITCODE = NO;

whatsapp_app/ios/Runner/Info.plist

@@ -26,8 +26,20 @@
 	<string>$(FLUTTER_BUILD_NUMBER)</string>
 	<key>LSRequiresIPhoneOS</key>
 	<true/>
+	<key>NSCameraUsageDescription</key>
+	<string>This app requires camera access to take and send photos via WhatsApp.</string>
+	<key>NSContactsUsageDescription</key>
+	<string>This app requires contacts access to match phone numbers with your local address book names.</string>
+	<key>NSMicrophoneUsageDescription</key>
+	<string>This app requires microphone access to record and send audio messages via WhatsApp.</string>
+	<key>NSPhotoLibraryUsageDescription</key>
+	<string>This app requires photo library access to choose and send photos via WhatsApp.</string>
 	<key>UIApplicationSupportsIndirectInputEvents</key>
 	<true/>
+	<key>UIBackgroundModes</key>
+	<array>
+		<string>remote-notification</string>
+	</array>
 	<key>UILaunchStoryboardName</key>
 	<string>LaunchScreen</string>
 	<key>UIMainStoryboardFile</key>
@@ -45,13 +57,5 @@
 		<string>UIInterfaceOrientationLandscapeLeft</string>
 		<string>UIInterfaceOrientationLandscapeRight</string>
 	</array>
-	<key>NSContactsUsageDescription</key>
-	<string>This app requires contacts access to match phone numbers with your local address book names.</string>
-	<key>NSCameraUsageDescription</key>
-	<string>This app requires camera access to take and send photos via WhatsApp.</string>
-	<key>NSPhotoLibraryUsageDescription</key>
-	<string>This app requires photo library access to choose and send photos via WhatsApp.</string>
-	<key>NSMicrophoneUsageDescription</key>
-	<string>This app requires microphone access to record and send audio messages via WhatsApp.</string>
 </dict>
 </plist>

whatsapp_app/ios/Runner/Runner.entitlements

@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>aps-environment</key>
+	<string>development</string>
+</dict>
+</plist>

whatsapp_app/lib/services/firebase_service.dart

@@ -2,6 +2,7 @@ import 'dart:async';
 import 'dart:convert';
 import 'dart:io';
 import 'package:firebase_messaging/firebase_messaging.dart';
+import 'package:flutter/widgets.dart';
 import 'package:flutter_local_notifications/flutter_local_notifications.dart';
 import 'package:get/get.dart';
 import '../models/conversation_model.dart';
@@ -158,6 +159,14 @@ class FirebaseService extends GetxService {
     final name = data['name'] ?? 'WhatsApp';
     final body = data['body'] ?? 'New Message';
 
+    // Only show local notifications when the app is actively in the foreground (resumed).
+    // If the app is in the background or suspended, the native FCM notification will handle it natively.
+    // This fully prevents duplicate notifications!
+    if (WidgetsBinding.instance.lifecycleState != AppLifecycleState.resumed) {
+      print('[FCM] Skipping WebSocket local notification: app is in background.');
+      return;
+    }
+
     // Smart Notification: Only show if we are NOT currently in this chat
     final activeChatId = Get.find<WhatsAppService>().activeChatId.value;
     if (chatId != null && activeChatId == chatId) {

whatsapp_app/lib/services/whatsapp_service.dart

@@ -3,6 +3,7 @@ import 'dart:convert';
 import 'package:get/get.dart';
 import 'package:web_socket_channel/web_socket_channel.dart';
 import '../config/app_config.dart';
+import 'contacts_service.dart';
 import 'firebase_service.dart';
 
 enum WsStatus { disconnected, connecting, connected, waReady }
@@ -104,9 +105,15 @@ class WhatsAppService extends GetxService {
              body = '📷 Media/Audio message';
           }
           try {
+            final String cleanNumber = chatId?.split('@')[0] ?? '';
+            final String senderName = Get.find<ContactsService>().getContactName(
+              cleanNumber,
+              cleanNumber.isNotEmpty ? '+$cleanNumber' : 'WhatsApp',
+            );
+
             Get.find<FirebaseService>().showLocalNotificationFromData({
               'chatId': chatId,
-              'name': chatId?.split('@')[0] ?? 'WhatsApp',
+              'name': senderName,
               'body': body,
             });
           } catch (e) {