using System;

using System.Collections.Generic;

using System.Linq;

​

public class Visitor

{

    public string name

    {

        get;

        set;

    }

​

    public string badgeNumber

    {

        get;

        set;

    }

​

    public string company

    {

        get;

        set;

    }

​

    public DateTime timeIn

    {

        get;

        set;

    }

​

    public DateTime timeOut

    {

        get;

        set;

    }

​

    private TimeSpan _stayDuration;

    public Visitor(string name, string badgeNumber, string company, DateTime timeIn)

    {

        this.name = name;

        this.badgeNumber = badgeNumber;

        this.company = company;

        this.timeIn = timeIn;

    }

}

​

public class Program

{

    public static void Main()

    {

        var visitorList = new List<Visitor>();

        //PrintMainMenu();

        //Console.WriteLine("Choose an option:");

        var userInput = "0";

        while (userInput != "4")

        {

            PrintMainMenu();

            userInput = Console.ReadLine();

            switch (userInput)

            {

                //case "0":

                //  PrintMainMenu();

                //  break;

                case "1":

                    var newVisitor = CreateNewVisitor();

                    visitorList.Add(newVisitor);

                    Console.WriteLine("Visitor Added");

                    break;

                case "2":

                    var badgeNumber = LogOutVisitor();

                    for (var i = 0; i <= (visitorList.Count() - 1); i++)

                    {

                        if (visitorList[i].badgeNumber == badgeNumber)

                        {

                            visitorList.RemoveAt(i);

                            Console.WriteLine("Logged Out");

                        }

                        else

                        {

                            Console.WriteLine("Badge Number not found");

                        }

                    }

​

                    break;

                case "3":

                    if (visitorList.Count() == 0)

                    {

                        Console.WriteLine("No Visitors Logged In");

                    }

                    else

                    {

                        foreach (var person in visitorList)

                        {

                            Console.WriteLine(person.name + " " + person.badgeNumber + " " + person.company + " " + person.timeIn);

                        }

                    }

​

                    break;

                case "4":

                    break;

            }

        }

    }

​

    public static void PrintMainMenu()

    {

        //Console.WriteLine("0. View Menu");

        Console.WriteLine("1. Add New Visitor");

        Console.WriteLine("2. Log Out Visitor");

        Console.WriteLine("3. View Logged in Visitors");

        Console.WriteLine("4. Exit");

    }

​

    public static Visitor CreateNewVisitor()

    {

        Console.WriteLine("Enter Visitor Name");

        var name = Console.ReadLine();

        Console.WriteLine("Enter Visitor Badge Number");

        var badge = Console.ReadLine();

        Console.WriteLine("Enter Company Visiting");

        var company = Console.ReadLine();

        var timeIn = DateTime.Now;

        Visitor visitor = new Visitor(name, badge, company, timeIn);

        return visitor;

    }

​

    public static string LogOutVisitor()

    {

        Console.WriteLine("enter badge number to log out");

        var badgeNumber = Console.ReadLine();

        return badgeNumber;

    }

}