using System;

using Newtonsoft.Json;

public class Program

{

    public class Booking

    {

        public string firstname { get; set; }

        public string lastname { get; set; }

        public int totalprice { get; set; }

        public bool depositpaid { get; set; }

        public BookingDates bookingdates { get; set; }

        public string additionalneeds { get; set; }

    }

    public class BookingDates

    {

        public string checkin { get; set; }

        public string checkout { get; set; }

    }

    public class Bookings : Booking

    {

        public int bookingid { get; set; }

    }

    public class BookingBuilder

    {

        private Bookings booking = new Bookings();

        public BookingBuilder WithBookingId(int id)

        {

            booking.bookingid = id;

            return this;

        }

​

        public BookingBuilder WithFirstName(string fName)

        {

            booking.firstname = fName;

            return this;

        }

​

        public BookingBuilder WithLastName(string lName)

        {

            booking.lastname = lName;

            return this;

        }

​

        public BookingBuilder WithTotalPrice(int tPrice)

        {

            booking.totalprice = tPrice;

            return this;

        }

​

        public BookingBuilder WithDepositPaid(bool dPaid)

        {

            booking.depositpaid = dPaid;

            return this;

        }

​

        public BookingBuilder WithBookingDates(string chkIn, string chkOut)

        {

            booking.bookingdates = new BookingDates

            {

                checkin = chkIn,

                checkout = chkOut

            };

            return this;

        }

​

        public BookingBuilder WithAdditionalNeeds(string addNeeds)

        {

            booking.additionalneeds = addNeeds;

            return this;

        }

​

        public Booking Build()

        {

            return booking;

        }

    }

    public static void Main()

    {

        Console.WriteLine("Hello World");

        //Bookings book = new Bookings();

        //var b1 = book.bookingid;

        var objBooking = new BookingBuilder()

            .WithBookingId(1)

            .WithFirstName("Robert")

            .WithLastName("Kadar")

            .WithTotalPrice(500)

            .WithDepositPaid(true)

            .WithBookingDates("2022-10-10", "2022-12-10")

            .WithAdditionalNeeds("Breakfast")

            .Build();

        Console.WriteLine(objBooking.bookingdates.checkin.ToString());

        //objBooking.bookingdates.checkin

        var json = JsonConvert.SerializeObject(objBooking, Formatting.Indented);

        Console.WriteLine(json);

    }

}