IosNotificationScheduler.kt

override fun scheduleTaskNotification(task: Task, timeInMillis: Long) {
        val content = UNMutableNotificationContent()
        content.setBody(task.title)
        content.setCategoryIdentifier(CATEGORY_IDENTIFIER_TASK)
        content.setUserInfo(mapOf(USER_INFO_TASK_ID to task.id))

        val nsDate = NSDate.dateWithTimeIntervalSince1970(timeInMillis / 1000.0)
        val dateComponents = NSCalendar.currentCalendar.components(
            NSCalendarUnitYear or NSCalendarUnitMonth or NSCalendarUnitDay
                or NSCalendarUnitHour or NSCalendarUnitMinute,
            fromDate = nsDate,
        )

        val trigger = UNCalendarNotificationTrigger.triggerWithDateMatchingComponents(
            dateComponents = dateComponents,
            repeats = false,
        )

        val request = UNNotificationRequest.requestWithIdentifier(
            identifier = task.id.toString(),
            content = content,
            trigger = trigger,
        )

        NSLog("Scheduling notification for '${task.title}' at '$timeInMillis'")
        val notificationCenter = UNUserNotificationCenter.currentNotificationCenter()
        notificationCenter.addNotificationRequest(request) { error ->
            if (error != null) {
                NSLog("Error scheduling notification: $error")
            }
        }
    }