//Two Task is require below

//1.in ShowValidPlans () method, change method  from void to Return array of plans,

//create a new array store all plans .

//create some rules validation mention above,pass in the  array validate and return the valid plan in ascending order.

//Add a basic error handling.

//pass in below parameters to ShowValidPlans() .

//param1 -  policyholder is not the insured flag(false)

//Param2-  travel start date(2024-03-19)

//Param3 - travel end date (2024-04-19)

//2.Create instance from new class - localTimeClass

//Implement ReturnDate() method ,pass in below Datetime parameter (ApplicationDate)

//argument value : 2024-03-17T13:18:27.5834001Z (UTC)

//Create logic to convert datetime UTC to Japan Local time zone .

//Next add 2 hour to the Result. 

//Output the result as format (YYYY-MM-DD) .

using System;

using System.Collections;

using System.Collections.Generic;

​

interface IDateConvert

{

    string ReturnDate();

}

​

public class localTimeClass : IDateConvert

{

    //TODO Task2

    public string ReturnDate()

    {

        return string.Empty;

    }

}

​

public class Program

{

    public enum Plans

    {

        CL1 = 0,

        BY1 = 1,

        BY2 = 2,

        AL3 = 3

    }

​

    public static void Main()

    {

        Console.WriteLine("Hello World " + Plans.AL3);

        string [] arr = ShowValidPlans(false, DateTime.Parse("2024-03-19"), DateTime.Parse("2024-04-19"));

        Console.WriteLine("Plan: ");

        foreach(string item in arr)

        {

            Console.Write(item.ToString() + ",");

        }

    //Task1 call ShowValidPlans(param1,param2,param3) & validate the conditions and return a list of arrays  valid Plans and display the results, Expect result display "Plan: BY1,BY2" 

    //Task2 Create instance from new class(localTimeClass),call ReturnDate() and show the result        

    }

​

    public static string[] ShowValidPlans(bool isNotPolicyholderSameAsInsured, DateTime TravelStartDate, DateTime TravelEndDate)

    {   

        //TODO 

        //change method void to array of plans      

        List<string> list = new List<string>();

        list.Add("CL1");

        int dateDiff = TravelEndDate.Subtract(TravelStartDate).Days;

        if (isNotPolicyholderSameAsInsured)

        {

            if (dateDiff < 32)

            {

                list.Add("BY1");                

            }

            if (dateDiff > 31)

            {

                list.Add("BY2");

            }           

        }

        // always show      

        list.Add("AL3");

        // convert to array

        string[] arrToReturn = list.ToArray();

        return arrToReturn;

    }

}