---

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

namespace HotelBooking
{
    public enum RoomType { Single, Double, Suite, Presidential }
    public enum BookingStatus { Pending, Confirmed, Cancelled, Completed }

    public class Room
    {
        public int Number { get; set; }
        public RoomType Type { get; set; }
        public decimal Price { get; set; }
        public List<DateTime> BookedDates { get; set; } = new();

        public bool IsAvailable(DateTime start, DateTime end)
        {
            for (var date = start; date < end; date = date.AddDays(1))
                if (BookedDates.Contains(date.Date)) return false;
            return true;
        }

        public override string ToString() => $"№{Number} ({Type}) - {Price:C}/ночь";
    }

    public class Guest
    {
        public string Passport { get; set; }
        public string Name { get; set; }
        public string Contact { get; set; }

        public override string ToString() => $"{Name} (Паспорт: {Passport})";
    }

    public class Booking
    {
        public int Id { get; set; }
        public Guest Guest { get; set; }
        public Room Room { get; set; }
        public DateTime CheckIn { get; set; }
        public DateTime CheckOut { get; set; }
        public BookingStatus Status { get; set; } = BookingStatus.Pending;

        public decimal CalculateCost()
        {
            int nights = (int)(CheckOut - CheckIn).TotalDays;
            return nights * Room.Price;
        }

        public bool Cancel()
        {
            if (DateTime.Now > CheckIn.AddHours(-24)) return false;
            Status = BookingStatus.Cancelled;
            return true;
        }
    }

    public class Hotel
    {
        public List<Room> Rooms { get; set; } = new();
        public List<Booking> Bookings { get; set; } = new();

        public List<Room> FindAvailableRooms(DateTime start, DateTime end)
        {
            return Rooms.Where(r => r.IsAvailable(start, end)).ToList();
        }

        public Booking CreateBooking(Guest guest, Room room, DateTime checkIn, DateTime checkOut)
        {
            if (!room.IsAvailable(checkIn, checkOut)) return null;
            
            var booking = new Booking
            {
                Id = Bookings.Count + 1,
                Guest = guest,
                Room = room,
                CheckIn = checkIn,
                CheckOut = checkOut,
                Status = BookingStatus.Confirmed
            };
            
            for (var date = checkIn; date < checkOut; date = date.AddDays(1))
                room.BookedDates.Add(date.Date);
            
            Bookings.Add(booking);
            return booking;
        }

        public void ShowReport()
        {
            Console.WriteLine($"Номера: {Rooms.Count}, Брони: {Bookings.Count}");
            var today = DateTime.Today;
            var occupied = Rooms.Count(r => r.BookedDates.Contains(today));
            Console.WriteLine($"Занято сегодня: {occupied}, Свободно: {Rooms.Count - occupied}");
        }
    }

    class Program
    {
        static void Main()
        {
            var hotel = new Hotel();
            
            // Добавляем номера
            hotel.Rooms.Add(new Room { Number = 101, Type = RoomType.Single, Price = 2500 });
            hotel.Rooms.Add(new Room { Number = 102, Type = RoomType.Double, Price = 4000 });
            hotel.Rooms.Add(new Room { Number = 103, Type = RoomType.Suite, Price = 8000 });

            bool running = true;
            while (running)
            {
                Console.WriteLine("\n1. Номера 2. Поиск 3. Бронировать 4. Отчет 0. Выход");
                var choice = Console.ReadLine();

                switch (choice)
                {
                    case "1":
                        hotel.Rooms.ForEach(r => Console.WriteLine(r));
                        break;
                        
                    case "2":
                        Console.Write("Начало (дд.мм.гггг): ");
                        if (DateTime.TryParse(Console.ReadLine(), out var start))
                        {
                            Console.Write("Конец (дд.мм.гггг): ");
                            if (DateTime.TryParse(Console.ReadLine(), out var end))
                            {
                                hotel.FindAvailableRooms(start, end).ForEach(r => Console.WriteLine(r));
                            }
                        }
                        break;
                        
                    case "3":
                        var guest = new Guest
                        {
                            Passport = "4500112233",
                            Name = "Иванов Иван",
                            Contact = "+79111234567"
                        };
                        
                        Console.Write("Начало (дд.мм.гггг): ");
                        if (DateTime.TryParse(Console.ReadLine(), out start))
                        {
                            Console.Write("Конец (дд.мм.гггг): ");
                            if (DateTime.TryParse(Console.ReadLine(), out var end))
                            {
                                var rooms = hotel.FindAvailableRooms(start, end);
                                if (rooms.Any())
                                {
                                    Console.WriteLine("Доступные номера:");
                                    for (int i = 0; i < rooms.Count; i++)
                                        Console.WriteLine($"{i + 1}. {rooms[i]}");
                                    
                                    if (int.TryParse(Console.ReadLine(), out int roomIdx) && roomIdx > 0 && roomIdx <= rooms.Count)
                                    {
                                        var booking = hotel.CreateBooking(guest, rooms[roomIdx - 1], start, end);
                                        Console.WriteLine(booking != null ? $"Бронь #{booking.Id} создана!" : "Ошибка!");
                                    }
                                }
                            }
                        }
                        break;
                        
                    case "4":
                        hotel.ShowReport();
                        break;
                        
                    case "0":
                        running = false;
                        break;
                }
            }
        }
    }
}