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Need to implement this class features in my code for three results.

Question

User1182587605 posted

I need to get the following details by invoking the GetFights() method from the provided class. Can anyone help me how to do it?

Depart before the current date/time.
Have a segment with an arrival date before the departure date.
Spend more than 2 hours on the ground. i.e those with a total gap of over two hours between the arrival date of one segment and the departure date of the next.

I have the following class:

using System;
using System.Collections.Generic;
using System.Linq;

namespace TravelRepublic.FlightCodingTest
{
    public class FlightBuilder
    {
        private DateTime _threeDaysFromNow;

        public FlightBuilder()
        {
            _threeDaysFromNow = DateTime.Now.AddDays(3);
        }

        public IList<Flight> GetFlights()
        {
            return new List<Flight>
			           {
                           //A normal flight with two hour duration
			               CreateFlight(_threeDaysFromNow, _threeDaysFromNow.AddHours(2)),

                           //A normal multi segment flight
			               CreateFlight(_threeDaysFromNow, _threeDaysFromNow.AddHours(2), _threeDaysFromNow.AddHours(3), _threeDaysFromNow.AddHours(5)),
                           
                           //A flight departing in the past
                           CreateFlight(_threeDaysFromNow.AddDays(-6), _threeDaysFromNow),

                           //A flight that departs before it arrives
                           CreateFlight(_threeDaysFromNow, _threeDaysFromNow.AddHours(-6)),

                           //A flight with more than two hours ground time
                           CreateFlight(_threeDaysFromNow, _threeDaysFromNow.AddHours(2), _threeDaysFromNow.AddHours(5), _threeDaysFromNow.AddHours(6)),

                            //Another flight with more than two hours ground time
                           CreateFlight(_threeDaysFromNow, _threeDaysFromNow.AddHours(2), _threeDaysFromNow.AddHours(3), _threeDaysFromNow.AddHours(4), _threeDaysFromNow.AddHours(6), _threeDaysFromNow.AddHours(7))
			           };
        }

        private static Flight CreateFlight(params DateTime[] dates)
        {
            if (dates.Length % 2 != 0) throw new ArgumentException("You must pass an even number of dates,", "dates");

            var departureDates = dates.Where((date, index) => index % 2 == 0);
            var arrivalDates = dates.Where((date, index) => index % 2 == 1);

            var segments = departureDates.Zip(arrivalDates,
                                              (departureDate, arrivalDate) =>
                                              new Segment { DepartureDate = departureDate, ArrivalDate = arrivalDate }).ToList();

            return new Flight { Segments = segments };
        }
    }

    public class Flight
    {
        public IList<Segment> Segments { get; set; }
    }

    public class Segment
    {
        public DateTime DepartureDate { get; set; }
        public DateTime ArrivalDate { get; set; }
    }
}

Sunday, December 24, 2017 6:53 AM

Answers

User-1838255255 posted

Hi acmedeepak,

According to your code and needs, I make a modify based on your code, please try:

protected void Page_Load(object sender, EventArgs e)
        {
            FlightBuilder fb = new FlightBuilder();
            var data = fb.GetFlights();
            for (int i = 0; i < data.Count; i++)
            {
                var len = data[i].Segments.Count;
                for (int j = 0; j < len; j++)
                {
                    DateTime dt = DateTime.Now;
                    var departure = data[i].Segments[j].DepartureDate;
                    var arrived = data[i].Segments[j].ArrivalDate;
                    int result = DateTime.Compare(departure, dt);
                    int newresult = DateTime.Compare(arrived, departure);
                    if (result < 0)
                    {
                        Response.Write(" Depart before the current date/time: " + "Arrived Date: " + data[i].Segments[j].ArrivalDate + ",Departure Date " + data[i].Segments[j].DepartureDate + "<br/>");
                    }
                    if (newresult < 0)
                    {
                        Response.Write(" Arrival date before the departure date: " + "Arrived Date: " + data[i].Segments[j].ArrivalDate + ",Departure Date " + data[i].Segments[j].DepartureDate + "<br/>");
                    }
                }
            }
            FlightBuilder newfb = new FlightBuilder();
            var newdata = newfb.GetFlights();
            for (int i = 0; i < newdata.Count; i++)
            {
                var newlen = newdata[i].Segments.Count;
                if (newlen == 2)
                {
                    for (int j = 0; j < newlen; j++)
                    {
                        var firstarrived = newdata[i].Segments[0].ArrivalDate;
                        var seconddeparture = newdata[i].Segments[1].DepartureDate;
                        var time = (seconddeparture - firstarrived).TotalHours;
                        if (time >= 2)
                        {
                            Response.Write("Total gap of over two hours: FirstArrived Date" + firstarrived + "Seconddeparture Date" + seconddeparture + "<br/>");
                        }
                    }
                }
            }
        }
        public class FlightBuilder
        {
            private DateTime _threeDaysFromNow;

            public FlightBuilder()
            {
                _threeDaysFromNow = DateTime.Now.AddDays(3);
            }

            public IList<Flight> GetFlights()
            {
                return new List<Flight>
                       {
                           //A normal flight with two hour duration
			               CreateFlight(_threeDaysFromNow, _threeDaysFromNow.AddHours(2)),

                           //A normal multi segment flight
			               CreateFlight(_threeDaysFromNow, _threeDaysFromNow.AddHours(2), _threeDaysFromNow.AddHours(3), _threeDaysFromNow.AddHours(5)),
                           
                           //A flight departing in the past
                           CreateFlight(_threeDaysFromNow.AddDays(-6), _threeDaysFromNow),

                           //A flight that departs before it arrives
                           CreateFlight(_threeDaysFromNow, _threeDaysFromNow.AddHours(-6)),

                           //A flight with more than two hours ground time
                           CreateFlight(_threeDaysFromNow, _threeDaysFromNow.AddHours(2), _threeDaysFromNow.AddHours(5), _threeDaysFromNow.AddHours(6)),

                            //Another flight with more than two hours ground time
                           CreateFlight(_threeDaysFromNow, _threeDaysFromNow.AddHours(2), _threeDaysFromNow.AddHours(3), _threeDaysFromNow.AddHours(4), _threeDaysFromNow.AddHours(6), _threeDaysFromNow.AddHours(7))
                       };
            }

            private static Flight CreateFlight(params DateTime[] dates)
            {
                if (dates.Length % 2 != 0) throw new ArgumentException("You must pass an even number of dates,", "dates");

                var departureDates = dates.Where((date, index) => index % 2 == 0);
                var arrivalDates = dates.Where((date, index) => index % 2 == 1);

                var segments = departureDates.Zip(arrivalDates,
                                                  (departureDate, arrivalDate) =>
                                                  new Segment { DepartureDate = departureDate, ArrivalDate = arrivalDate }).ToList();

                return new Flight { Segments = segments };
            }
        }

        public class Flight
        {
            public IList<Segment> Segments { get; set; }
        }

        public class Segment
        {
            public DateTime DepartureDate { get; set; }
            public DateTime ArrivalDate { get; set; }
        }

Result:

Best Regards,

Eric Du

Marked as answer by Anonymous Thursday, October 7, 2021 12:00 AM

Tuesday, December 26, 2017 3:23 AM

Answered by:

Need to implement this class features in my code for three results.

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