using System;
using System.IO;
using System.Linq;

namespace homework
{
    class Program
    {
        static int InputInt(int minValue, int maxValue)
        {
            int number = 0;
            bool success = false;
            while (!success)
            {
                success = int.TryParse(Console.ReadLine(), out number);
                if (!success)
                {
                    Console.BackgroundColor = ConsoleColor.Red;
                    Console.ForegroundColor = ConsoleColor.White;
                    Console.WriteLine("Введено не число. Повторите попытку");
                    Console.ResetColor();
                }
                else if (number <= 0 || number > maxValue)
                {
                    success = false;
                    Console.BackgroundColor = ConsoleColor.Red;
                    Console.ForegroundColor = ConsoleColor.White;
                    Console.WriteLine("Введено недопустимое число!");
                    Console.ResetColor();
                }
            }
            return number;
        }

        static void AllocateRoom(string[] HotelRoom, ref int[] bookedRoom, int[] standartHotelRoom, int numberBooked)
        {
            Console.CursorVisible = true;
            PrintAllRoom(HotelRoom, bookedRoom, standartHotelRoom);
            Console.WriteLine("Введите номер комнаты: ");
            int number = InputInt(0, HotelRoom.Length)-1;
            Console.Clear();
            if (bookedRoom[number] == 1 || bookedRoom[number] == 2)
            {
                Console.BackgroundColor = ConsoleColor.Red;
                Console.ForegroundColor = ConsoleColor.White;
                Console.Write("Невозможно выбрать этот номер!");
                Console.ResetColor();
                Console.ReadKey();
                return;
            }
            PrintAllRoom(HotelRoom[number], bookedRoom[number], standartHotelRoom[number]);
            Console.WriteLine("Введите количество посетителей: ");
            int countMan = InputInt(0, standartHotelRoom[number]);
            bookedRoom[number] = numberBooked;
            Console.CursorVisible = false;
            if (numberBooked == 2) Console.WriteLine("Успешно! Номер забронирован.\nДля выхода нажмите клавишу...");
            else if (numberBooked == 1) Console.WriteLine("Успешно! Номер занят.\nДля выхода нажмите клавишу...");
            Console.ReadKey();
        }

        static void PrintAllRoom(string[] room, int[] bookedRoom, int[] standartHotelRoom)
        {
            Console.Clear();
            if (room.Length <= 0)
            {
                Console.WriteLine("Комнат не обнаружено.\nВведите данные про номара.\nНажмите клавишу для продолжения...");
                Console.ReadKey();
                return;
            }
            for (int i=0; i<room.Length;i++)
            {
                Console.WriteLine("  Комната №"+(i+1));
                Console.WriteLine("\t"+room[i]);
                if (bookedRoom[i] == 0)
                    Console.WriteLine("\tВ комнате доступно мест: " + standartHotelRoom[i]);
                else if (bookedRoom[i] == 1)
                    Console.WriteLine("\tКомната занята");
                else if (bookedRoom[i] == 2)
                    Console.WriteLine("\tКомната забронирована");
                Console.WriteLine("-----------------------------------");
            }
            Console.WriteLine("Для подолжения нажмите клавишу...");
            Console.ReadKey();
        }

        static void PrintAllRoom(string room, int bookedRoom, int standartHotelRoom)
        {
                Console.WriteLine("  Комната:");
                Console.WriteLine("\t" + room);
                if (bookedRoom == 0)
                    Console.WriteLine("\tВ комнате доступно мест: " + standartHotelRoom);
                Console.WriteLine("-----------------------------------");
        }

        static void AddNewRoom(ref string[] HotelRoom, ref int[] bookedRoom, ref int[] standartHotelRoom)
        {
            Console.CursorVisible = true;
            Console.Clear();
            string[] copyRoom = new string[HotelRoom.Length + 1];
            int[] copyBooked = new int[HotelRoom.Length + 1],
            copyStandart = new int[HotelRoom.Length + 1];
            for (int i = 0; i < HotelRoom.Length; i++) copyRoom[i] = HotelRoom[i];
            for (int i = 0; i < bookedRoom.Length; i++) copyBooked[i] = bookedRoom[i];
            for (int i = 0; i < standartHotelRoom.Length; i++) copyStandart[i] = standartHotelRoom[i];
            Console.WriteLine("Введите название. К примеру: \"Номер с видом на море\"");
            copyRoom[copyRoom.Length - 1] = Console.ReadLine();
            Console.Write("Введите количество доступных мест:");

            copyStandart[copyStandart.Length - 1] = InputInt(0, int.MaxValue);

            copyBooked[copyBooked.Length - 1] = 0;
            HotelRoom = copyRoom;
            bookedRoom = copyBooked;
            standartHotelRoom = copyStandart;
        }

        static void ReallocateNewRoom(ref string[] HotelRoom, ref int[] bookedRoom, ref int[] standartHotelRoom)
        {
            Console.CursorVisible = true;
            PrintAllRoom(HotelRoom, bookedRoom, standartHotelRoom);
            Console.WriteLine("Введите номер комнаты: ");
            int number = InputInt(0, HotelRoom.Length)-1;
            bookedRoom[number] = 0;
            Console.WriteLine("Успешно! Нажмите клавишу для продолжения...");
            Console.ReadKey();
        }

        static void RemoveRoom(ref string[] HotelRoom, ref int[] bookedRoom, ref int[] standartHotelRoom)
        {
            Console.CursorVisible = true;
            Console.Clear();
            string[] copyRoom = new string[HotelRoom.Length - 1];
            int[] copyBooked = new int[HotelRoom.Length - 1],
            copyStandart = new int[HotelRoom.Length - 1];

            PrintAllRoom(HotelRoom, bookedRoom, standartHotelRoom);
            Console.WriteLine("Введите номер комнаты: ");
            int numberRoom = InputInt(0, HotelRoom.Length)-1;
            for (int i =0, j = 0; i< copyRoom.Length;i++, j++)
            {
                if (i < HotelRoom.Length - 1)
                {
                    if (numberRoom - 1 == i) i++;
                    copyRoom[j] = HotelRoom[i];
                    copyBooked[j] = bookedRoom[i];
                    copyStandart[j] = standartHotelRoom[i];
                }
            }
            HotelRoom = copyRoom;
            bookedRoom = copyBooked;
            standartHotelRoom = copyStandart;
            Console.WriteLine("Упешно! Комната удалена. Нажмите клавишу для продолжения.");
            Console.ReadKey();
        }

        static void Main(string[] args)
        {
            int[] standartHotelRoom = {2, 4,6 };
            string[] HotelRoom = {"С видом на море", "С видом на помойку", "С видом в город"};
            int[] bookedRoom = {0, 1, 2 }; // 0 - свободно, 1 - занято, 2 - забронировано
            string nameApplication = "Hôtel Plaza Athénée";
            string[] menu = {
            "Забронировать номер",
            "Размещение посетителей",
            "Снять бронь с номера",
            "Список номеров",
            "Добавить номер",
            "Удалить номер",
            "Выход" };
            while (true)
            {
                Console.Clear();
                Console.WriteLine(nameApplication);
                for (int i = 0; i < menu.Length; i++)
                {
                    Console.WriteLine("    "+menu[i]);
                }
                int selectCommand = 0;
                ConsoleKeyInfo charKey;
                bool selectMenuCommand = false;
                Console.CursorVisible = false;
                Console.SetCursorPosition(1, 1 + selectCommand);
                Console.Write(" >");
                while (!selectMenuCommand)
                {
                    charKey = Console.ReadKey();
                    switch (charKey.Key)
                    {
                        case ConsoleKey.UpArrow:
                            Console.SetCursorPosition(1, 1 + selectCommand);
                            Console.Write("  ");
                            selectCommand--;
                            if (selectCommand < 0) selectCommand = 6;
                            Console.SetCursorPosition(1, 1 + selectCommand);
                            Console.Write(" >");
                            break;
                        case ConsoleKey.DownArrow:
                            Console.SetCursorPosition(1, 1 + selectCommand);
                            Console.Write("  ");
                            selectCommand++;
                            if (selectCommand >= menu.Length) selectCommand = 0;
                            Console.SetCursorPosition(1, 1 + selectCommand);
                            Console.Write(" >");
                            break;
                        case ConsoleKey.Enter:
                            selectMenuCommand = true;
                            break;
                    }
                }
                switch (selectCommand)
                {
                    case 0:
                        AllocateRoom(HotelRoom, ref bookedRoom, standartHotelRoom, 2);
                        break;
                    case 1:
                        AllocateRoom(HotelRoom, ref bookedRoom, standartHotelRoom, 1);
                        break;
                    case 2:
                        ReallocateNewRoom(ref HotelRoom, ref bookedRoom, ref standartHotelRoom);
                        break;
                    case 3:
                        PrintAllRoom(HotelRoom,bookedRoom,standartHotelRoom);
                        break;
                    case 4:
                        AddNewRoom(ref HotelRoom, ref bookedRoom, ref standartHotelRoom);
                        break;
                    case 5:
                        RemoveRoom(ref HotelRoom, ref bookedRoom, ref standartHotelRoom);
                        break;
                    case 6:
                        Console.SetCursorPosition(0, 8);
                        return;
                }
            }
        }
    }
}