notify reactions while app is running

DcCore/DcCore/DC/events.swift

@@ -7,6 +7,7 @@ public enum Event {
     public static let messageReadDeliveredFailedReaction = Notification.Name(rawValue: "messageReadDeliveredFailedReaction")
     public static let incomingMessage = Notification.Name(rawValue: "incomingMessage")
     public static let incomingMessageOnAnyAccount = Notification.Name(rawValue: "incomingMessageOnAnyAccount")
+    public static let incomingReaction = Notification.Name(rawValue: "incomingReaction")
     public static let messagesNoticed = Notification.Name(rawValue: "messagesNoticed")
 
     // Chats
@@ -145,6 +146,15 @@ public class DcEventHandler {
                 "account_id": accountId
             ])
 
+        case DC_EVENT_INCOMING_REACTION:
+            logger.info("📡[\(accountId)] incoming reaction")
+            NotificationCenter.default.post(name: Event.incomingReaction, object: nil, userInfo: [
+                "account_id": Int(accountId),
+                "contact_id": Int(data1),
+                "msg_id": Int(data2),
+                "reaction": event.data2String
+            ])
+
         case DC_EVENT_CONTACTS_CHANGED:
             if accountId != dcAccounts.getSelected().id {
                 return

DcNotificationService/NotificationService.swift

@@ -61,7 +61,7 @@ class NotificationService: UNNotificationServiceExtension {
                     let msg = dcContext.getMessage(id: event.data2Int)
                     let chat = dcContext.getChat(chatId: msg.chatId)
                     if !chat.isMuted {
-                        let sender = msg.getSenderName(dcContext.getContact(id: event.data1Int))
+                        let sender = dcContext.getContact(id: event.data1Int).displayName
                         let summary = (msg.summary(chars: 80) ?? "")
                         bestAttemptContent.title = chat.name
                         bestAttemptContent.body = String.localized(stringID: "reaction_by_other", parameter: sender, event.data2String, summary)

deltachat-ios/Helper/NotificationManager.swift

@@ -13,6 +13,7 @@ public class NotificationManager {
         self.dcContext = dcAccounts.getSelected()
 
         NotificationCenter.default.addObserver(self, selector: #selector(NotificationManager.handleIncomingMessageOnAnyAccount(_:)), name: Event.incomingMessageOnAnyAccount, object: nil)
+        NotificationCenter.default.addObserver(self, selector: #selector(NotificationManager.handleIncomingReaction(_:)), name: Event.incomingReaction, object: nil)
         NotificationCenter.default.addObserver(self, selector: #selector(NotificationManager.handleMessagesNoticed(_:)), name: Event.messagesNoticed, object: nil)
     }
 
@@ -122,4 +123,36 @@ public class NotificationManager {
             UIApplication.shared.endBackgroundTask(backgroundTask)
         }
     }
+
+    @objc private func handleIncomingReaction(_ notification: Notification) {
+        let backgroundTask = UIApplication.shared.beginBackgroundTask {
+            logger.info("incoming-reaction-task will end soon")
+        }
+
+        DispatchQueue.global().async { [weak self] in
+            guard let self, let ui = notification.userInfo else { return }
+            let eventContext = dcAccounts.get(id: ui["account_id"] as? Int ?? 0)
+            if !eventContext.isMuted() {
+                let msg = eventContext.getMessage(id: ui["msg_id"] as? Int ?? 0)
+                let chat = eventContext.getChat(chatId: msg.chatId)
+                if !chat.isMuted {
+                    let contact = eventContext.getContact(id: ui["contact_id"] as? Int ?? 0)
+                    let summary = (msg.summary(chars: 80) ?? "")
+                    let reaction = ui["reaction"] as? String ?? ""
+
+                    let content = UNMutableNotificationContent()
+                    content.title = chat.name
+                    content.body = String.localized(stringID: "reaction_by_other", parameter: contact.displayName, reaction, summary)
+                    content.userInfo["account_id"] = eventContext.id
+                    content.userInfo["chat_id"] = chat.id
+                    content.userInfo["message_id"] = msg.id
+
+                    let request = UNNotificationRequest(identifier: UUID().uuidString, content: content, trigger: nil)
+                    UNUserNotificationCenter.current().add(request, withCompletionHandler: nil)
+                }
+            }
+
+            UIApplication.shared.endBackgroundTask(backgroundTask) // this line must be reached to balance call to `beginBackgroundTask` above
+        }
+    }
 }