DynamicPushAnswers - handler

PushManager+Handler-prepareNotification.swift

func prepareNotification(content: UNNotificationContent, userInfo: [AnyHashable: Any], completionHandler: @escaping (UNNotificationPresentationOptions) -> Void){
        // Register the notification type.
        let notificationCenter = UNUserNotificationCenter.current()
        
        var json = JSON(userInfo)
        
        guard let data = json["data"].dictionary else {
            completionHandler([ .alert, .sound, .badge ])
            return
        }
        
        let alreadyRequested = data["PushManagerPrepared"]?.bool ?? false
        
        guard alreadyRequested == false else {
            completionHandler([ .alert, .sound, .badge ])
            return
        }
        
        guard let question = data["question"]?.dictionary, let questionId = question["id"]?.int, let answers = question["answers"]?.array, !answers.isEmpty else {
            completionHandler([ .alert, .sound, .badge ])
            return
        }
        
        let acts = answers.map { (answer) -> UNNotificationAction in
            let action = UNNotificationAction(identifier: String(answer["id"].int!), title: answer["text"].string!, options: [.foreground])
            return action
        }
        
        let category = UNNotificationCategory(identifier: "DynamicPushAnswersInQuestion" + String(questionId), actions: acts, intentIdentifiers: [], options: [])
        
        // Register the notification type.
        notificationCenter.setNotificationCategories([category])
        
        let newContent = UNMutableNotificationContent()
        newContent.title = content.title
        newContent.body = content.body
        newContent.subtitle = content.subtitle
        newContent.sound = content.sound
        
        json["data"]["PushManagerPrepared"] = true
        newContent.userInfo = json.dictionaryObject!
        newContent.categoryIdentifier = category.identifier
        
        let trigger = UNTimeIntervalNotificationTrigger(timeInterval: 2, repeats: false)
        let newRequest = UNNotificationRequest(identifier: category.identifier, content: newContent, trigger: trigger)
        
        //add new notification with category
        notificationCenter.add(newRequest) { (error) in
            if let error = error {
                print("Error \(error.localizedDescription)")
            }
        }
        
        completionHandler([])
    }