using System;
using System.Collections.Generic;

class Program
{
    static void Main(string[] args)
    {
        Depo depo = new Depo();

        depo.Work();
    }
}

class Depo
{
    private static Random _random = new Random();

    private List<Train> _trains;
    private int _numberTrain = 1000;

    public Depo()
    {
        _trains = new List<Train>();
    }

    public void Work()
    {
        string goCommand = "Go";
        string exitCommand = "Exit";
        bool isWorking = true;

        while (isWorking)
        {
            Console.WriteLine($"Введите {goCommand} чтобы начать программу или {exitCommand} для выхода.");
            string userInput = Console.ReadLine();

            if (userInput == "Exit")
            {
                isWorking = false;
            }
            else if(userInput == "Go")
            {
                ShowInfo();
                CreateNewTrain();
            }
        }
    }

    private int CreateNewTickets()
    {
        int minIndexRandom = 5;
        int maxIndexRandom = 16;

        return _random.Next(minIndexRandom, maxIndexRandom);
    }

    private Direction CreateNewDirection()
    {
        string source;
        string destination;

        Console.WriteLine("Создание нового направления.\nВведите пункт отправления и пункт отбытия.");
        source = Console.ReadLine();
        destination = Console.ReadLine();

        while (String.IsNullOrWhiteSpace(source) || String.IsNullOrWhiteSpace(destination) || source.ToLower() == destination.ToLower())
        {
            Console.WriteLine("Ошибка. Введены не коректные данные");
        }

        Console.WriteLine($"Направление {source}-{destination} создано.");

        return new Direction(source, destination);

    }

    private void CreateNewTrain()
    {
        Direction direction = CreateNewDirection();

        _trains.Add(new Train(_numberTrain, direction, CreateNewTickets()));

        _numberTrain++;
    }

    private void ShowInfo()
    {
        foreach (var train in _trains)
        {
            train.ShowStatsTrain();
        }
    }
}

class Train
{
    private List<Van> _vans;
    private List<Van> _vansInTrain;
    private Direction _direction;

    public Train(int number, Direction direction, int numberTickets)
    {
        Number = number;
        _direction = direction;
        _vans = new List<Van>() { new SmallVan(), new MediumVan(),new LargeVan() };
        _vansInTrain = new List<Van>();

        AddVans(numberTickets);
    }

    public int Number { get; private set; }

    public void AddVans(int numberTickets)
    {
        Console.WriteLine($"Кол-во купленных билетов:{numberTickets}");

        string vanName;

        Console.WriteLine("Какой вагон вы хотите добавить?");

        foreach (Van van in _vans)
        {
            van.ShowStatsVan();
        }

        vanName = Console.ReadLine();

        foreach (Van van in _vans)
        {
            while (van.Name == vanName && numberTickets > 0)
            {
                _vansInTrain.Add(van);
                numberTickets -= van.NumberSeats;
            }
        }
    }

    public void ShowStatsTrain()
    {
        Console.WriteLine($"Направление {_direction.Source}-{_direction.Destination} |Номер поезда {Number}| Кол-во вагонов {_vansInTrain.Count}");
    }
}

class Van
{
    public Van(string name, int numberSeats)
    {
        Name = name;
        NumberSeats = numberSeats;
    }

    public string Name { get; private set; }
    public int NumberSeats { get; private set; }

    public void ShowStatsVan()
    {
        Console.WriteLine($"{Name}|Кол-во мест:{NumberSeats}");
    }
}

class SmallVan : Van
{
    public SmallVan() : base ("Small", 5) { }
}

class MediumVan : Van
{
    public MediumVan() : base("Medium", 10) { }
}

class LargeVan : Van
{
    public LargeVan() : base("Large", 15) { }
}

class Direction
{
    public Direction(string source, string destination)
    {
        Source = source;
        Destination = destination;
    }

    public string Source { get; private set; }
    public string Destination { get; private set; }
}