ios: fix notification badge count (#903)

apps/ios/Shared/Model/ChatModel.swift

@@ -162,7 +162,10 @@ final class ChatModel: ObservableObject {
             if case .rcvNew = cItem.meta.itemStatus {
                 DispatchQueue.main.asyncAfter(deadline: .now() + 1) {
                     if self.chatId == cInfo.id {
-                        Task { await apiMarkChatItemRead(cInfo, cItem) }
+                        Task {
+                            await apiMarkChatItemRead(cInfo, cItem)
+                            NtfManager.shared.decNtfBadgeCount()
+                        }
                     }
                 }
             }

apps/ios/Shared/SimpleXApp.swift

@@ -58,6 +58,7 @@ struct SimpleXApp: App {
                             enteredBackground = ProcessInfo.processInfo.systemUptime
                         }
                         doAuthenticate = false
+                        NtfManager.shared.setNtfBadgeCount(chatModel.totalUnreadCount())
                     case .active:
                         if chatModel.chatRunning == true {
                             ChatReceiver.shared.start()

apps/ios/SimpleX NSE/NotificationService.swift

@@ -63,8 +63,6 @@ class NotificationService: UNNotificationServiceExtension {
 
     override func didReceive(_ request: UNNotificationRequest, withContentHandler contentHandler: @escaping (UNNotificationContent) -> Void) {
         logger.debug("NotificationService.didReceive")
-        badgeCount = ntfBadgeCountGroupDefault.get() + 1
-        ntfBadgeCountGroupDefault.set(badgeCount)
         setBestAttemptNtf(request.content.mutableCopy() as? UNMutableNotificationContent)
         self.contentHandler = contentHandler
         registerGroupDefaults()
@@ -72,9 +70,11 @@ class NotificationService: UNNotificationServiceExtension {
         switch appState {
         case .suspended:
             logger.debug("NotificationService: app is suspended")
+            setBadgeCount()
             receiveNtfMessages(request, contentHandler)
         case .suspending:
             logger.debug("NotificationService: app is suspending")
+            setBadgeCount()
             Task {
                 var state = appState
                 for _ in 1...5 {
@@ -131,6 +131,11 @@ class NotificationService: UNNotificationServiceExtension {
         deliverBestAttemptNtf()
     }
 
+    func setBadgeCount() {
+        badgeCount = ntfBadgeCountGroupDefault.get() + 1
+        ntfBadgeCountGroupDefault.set(badgeCount)
+    }
+
     func setBestAttemptNtf(_ ntf: UNMutableNotificationContent?) {
         logger.debug("NotificationService.setBestAttemptNtf")
         bestAttemptNtf = ntf