using System;

using System.IO;

using System.Security.Cryptography;

using System.Collections.Generic;

using System.Linq;

​

namespace Rextester{

       public class Model

    {

        public ReturnModeInfo ReturnModeInfo { get; set; }

           public Articles Articles { get; set; }

    }

​

    // Define the ReturnModeInfo class

    public class ReturnModeInfo

    {

        public DateTime? ReturnDate { get; set; }

    }

​

    //Test2

​

    // Define the Articles class

    public class Articles

    {

        public List<Item> Items { get; set; }

    }

​

    // Define the Item class

    public class Item

    {

        public int ManagedQuantity { get; set; }

        public int LogisticStatus { get; set; }

    }

​

    // Define the IncidentOrderDetailStatus enum

    public enum IncidentOrderDetailStatus

    {

        Undefined = 0,

        // Add other statuses as needed

    }

​

​

    public class Program{

        public static void Main(string[] args){

            //model.ReturnModeInfo != null && model.ReturnModeInfo.ReturnDate != null && model.ReturnModeInfo.ReturnDate.Value < DateTime.Today

            //model.ReturnModeInfo?.ReturnDate < DateTime.Today && (!model.ReturnModeInfo.OldReturnDate.HasValue || model.ReturnModeInfo.OldReturnDate.Value != model.ReturnModeInfo.ReturnDate.Value)

              // Create an instance of the model

            Model model = new Model

            {

                ReturnModeInfo = new ReturnModeInfo

                {

                    //ReturnDate = new DateTime(2023, 6, 20) // Set this to any date for testing

                },

                 Articles = new Articles

                {

                    Items = new List<Item>

                    {

                        new Item { ManagedQuantity = 5, LogisticStatus = (int)IncidentOrderDetailStatus.Undefined },

                        new Item { ManagedQuantity = 0, LogisticStatus = (int)IncidentOrderDetailStatus.Undefined },

                        new Item { ManagedQuantity = 3, LogisticStatus = 1 } // Status other than Undefined

                    }

                }

            };

            // Test the condition

            bool NewCode = model.ReturnModeInfo?.ReturnDate < DateTime.Today;

            // Output the result

            Console.WriteLine($"Is the return date before today? {NewCode}");

            //Test 2:

             // Code 1: Using Where and Count

            bool oldCode = model.Articles.Items.Where(p => p.ManagedQuantity > 0 && p.LogisticStatus == (int)IncidentOrderDetailStatus.Undefined).Count() > 0;

​

            // Code 2: Using Any

            bool newCode = model.Articles.Items.Any(p => p.ManagedQuantity > 0 && p.LogisticStatus == (int)IncidentOrderDetailStatus.Undefined);

​

            // Output the results

            Console.WriteLine($"Result of Code 1: {oldCode}");

            Console.WriteLine($"Result of Code 2: {newCode}");

​

        }

    }

}