breez-sdk-liquid/lib/bindings/langs/swift/Sources/BreezSDKLiquid/TaskProtocol.swift

import UserNotifications

public protocol TaskProtocol : EventListener {
    var payload: String { get set }
    var contentHandler: ((UNNotificationContent) -> Void)? { get set }
    var bestAttemptContent: UNMutableNotificationContent? { get set }
    
    func start(liquidSDK: BindingLiquidSdk) throws
    func onShutdown()
}

extension TaskProtocol {
    func displayPushNotification(title: String, body: String? = nil, logger: ServiceLogger, threadIdentifier: String? = nil) {
        logger.log(tag: "TaskProtocol", line:"displayPushNotification \(title)", level: "INFO")
        guard
            let contentHandler = contentHandler,
            let bestAttemptContent = bestAttemptContent
        else {
            return
        }
        
        if let body = body {
            bestAttemptContent.body = body
        }

        if let threadIdentifier = threadIdentifier {
            bestAttemptContent.threadIdentifier = threadIdentifier
        }
        
        bestAttemptContent.title = title
        contentHandler(bestAttemptContent)
    }
}