using System;

public class Program

{

    public static void Main()

    {

        Workflow workflow = new Workflow();

        workflow.Name = "D1";

        workflow.Value = "yes";

        string workflowCode = workflow.Name switch

        {

          string confirmed when confirmed.

          Contains("CONFIRMED") =>

          TripEventXid.StartConfirmed,

​

          string reschedulePickupAppointment when reschedulePickupAppointment.

          Contains("AA_RS") =>

          TripEventXid.RescheludePickupAppointment,

​

          string rescheduleDeliveryAppointment when rescheduleDeliveryAppointment.

          Contains("AB_RS") =>

          TripEventXid.RescheduledDeliveryAppointment,

​

          string failedDelivery when failedDelivery.

          Contains("A7") =>

          TripEventXid.FailedDelivery,

​

          string eta when eta.

          Contains("AG") =>

          TripEventXid.ETA,

​

          string end when end.

          Contains("X5") =>

          TripEventXid.End,

​

          string deliveryCompleted when deliveryCompleted.

          Contains("D1") && workflow.Value.Equals("yes", StringComparison.InvariantCultureIgnoreCase) =>

          TripEventXid.DeliveryCompleted,

​

          string deliveryException when deliveryException.

          Contains("D3") && workflow.Value.Equals("yes", StringComparison.InvariantCultureIgnoreCase) =>

          TripEventXid.DeliveryException,

​

          _ => throw new ArgumentOutOfRangeException()

        };

        Console.WriteLine(workflowCode);

    }

​

    public class Workflow

    {

        public string Name {get;set;} = string.Empty;

        public string Value {get;set;} = string.Empty;

    }

    public abstract class TripEventXid

    {

        public const string StartConfirmed = "CONFIRMED";

        public const string PickupArrived = "X3";

        public const string StartLoading = "L1";

        public const string PickupDone = "AF";

        public const string ETA = "AG";

        public const string DeliveryArrived = "X1";

        public const string StartUnloading = "AH";

        public const string DeliveryException = "AP";

        public const string FailedDelivery = "A7";

        public const string DeliveryCompleted = "D1";

        public const string Departing = "CD";

        public const string End = "X5";

        public const string RescheludePickupAppointment = "AA_RS";

        public const string RescheduledDeliveryAppointment = "AB_RS";

    }

}