using System;

namespace home
{
	class Program
	{
		static void Main(string[] args)
		{
			string[] names = new string[0];
			string[] last_names = new string[0];
			string[] phonenumber = new string[0];
			string[] comm = new string[0];
			bool[] vip = new bool[0];
			while (true)
			{
				Console.WriteLine("Меню: управление на цифорки");
				Console.WriteLine("1 - Все клиенты");
				Console.WriteLine("2 - Новый клиент");
				Console.WriteLine("3 - Удалить клиента");
				Console.WriteLine("4 - Поиск");
				ConsoleKeyInfo charKey = Console.ReadKey();
				if (charKey.Key == ConsoleKey.NumPad1 || charKey.Key == ConsoleKey.D1)
				{
					Console.Clear();
					if (names.Length != 0)
					{
						for (int i = 0; i < names.Length; i++)
						{
							if (vip[i])
							{
								Console.WriteLine("№ " + (i + 1) + " " + names[i] + " " + last_names[i] + " " + phonenumber[i] + " (VIP) " + comm[i]);
								Console.WriteLine("");
							}
							else
							{
								Console.WriteLine("№ " + (i + 1) + " " + names[i] + " " + last_names[i] + " " + phonenumber[i] + " " + comm[i]);
								Console.WriteLine("");
							}
						}
					}
					menu();
				}
				if (charKey.Key == ConsoleKey.NumPad2 || charKey.Key == ConsoleKey.D2)
				{
					Console.Clear();
					Console.WriteLine("Введите имя: ");
					Array.Resize(ref names, names.Length + 1);
					Console.WriteLine("");
					int i = names.Length - 1;
					names[i] = Console.ReadLine();
					Console.WriteLine("");

					Console.WriteLine("Введите Фамилию: ");
					Array.Resize(ref last_names, last_names.Length + 1);
					Console.WriteLine("");
					i = last_names.Length - 1;
					last_names[i] = Console.ReadLine();
					Console.WriteLine("");

					Console.WriteLine("Введите номер телефона");
					Array.Resize(ref phonenumber, phonenumber.Length + 1);
					Console.WriteLine("");
					i = phonenumber.Length - 1;
					phonenumber[i] = Console.ReadLine();
					Console.WriteLine("");

					Console.WriteLine("Включить особые услуги(VIP)?");
					Console.WriteLine("");
					Console.WriteLine("1 - да. 2 - нет.");
					Console.WriteLine("");
					charKey = Console.ReadKey();
					Console.WriteLine("");
					if (charKey.Key == ConsoleKey.NumPad1 || charKey.Key == ConsoleKey.D1)
					{
						Array.Resize(ref vip, vip.Length + 1);
						i = vip.Length - 1;
						vip[i] = true;
						Console.WriteLine("");
					}
					else
					{
						Array.Resize(ref vip, vip.Length + 1);
						i = vip.Length - 1;
						vip[i] = false;
						Console.WriteLine("");
					}
					Console.WriteLine("Введите комментарий(можно оставить пустым)");
					Array.Resize(ref comm, comm.Length + 1);
					Console.WriteLine("");
					i = comm.Length - 1;
					comm[i] = Console.ReadLine();
					Console.WriteLine("");
					Console.Clear();

				}
				if (charKey.Key == ConsoleKey.NumPad3 || charKey.Key == ConsoleKey.D3)
				{
					Console.Clear();
					if (names.Length == 0)
					{
						Console.WriteLine("удалять нечего");
						Console.WriteLine("");
						menu();
					}
					else
					{
						Console.WriteLine("Введите номер клиента который хотите удалить");
						int num = readint();
						Console.WriteLine("");
						num--;
						if (num >= 0 && num < names.Length)
						{
							string[] tempnames = new string[names.Length - 1];
							string[] templast_names = new string[last_names.Length - 1];
							string[] tempphonenumber = new string[phonenumber.Length - 1];
							string[] tempcomm = new string[comm.Length - 1];
							bool[] tempvip = new bool[vip.Length - 1];

							int inames = 0;

							for (int i = 0; i < tempnames.Length; i++)
							{
								if (i == num)
								{
									inames++;
								}
								tempnames[i] = names[inames];
								templast_names[i] = last_names[inames];
								tempphonenumber[i] = phonenumber[inames];
								tempcomm[i] = comm[inames];
								tempvip[i] = vip[inames];
								inames++;
							}
							names = tempnames;
							last_names = templast_names;
							phonenumber = tempphonenumber;
							comm = tempcomm;
							vip = tempvip;
							Console.WriteLine("");
							Console.Clear();
						}
						else
						{
							Console.WriteLine("Такого клиента нет.");
							Console.WriteLine("");
							menu();
						}
					}
				}
				if (charKey.Key == ConsoleKey.NumPad4 || charKey.Key == ConsoleKey.D4)
				{
					Console.Clear();
					Console.WriteLine("Поиск по следующим критериям: ");
					Console.WriteLine("1 - Наличие VIP статуса");
					Console.WriteLine("2 - Фамилия");
					Console.WriteLine("3 - Имя");
					Console.WriteLine("4 - Номер телефона");
					charKey = Console.ReadKey();
					Console.Clear();
					if (charKey.Key == ConsoleKey.NumPad1 || charKey.Key == ConsoleKey.D1)
					{
						Console.Clear();
						for (int i = 0; i < names.Length; i++)
						{
							if (vip[i])
							{
								Console.WriteLine("№ " + (i + 1) + " " + names[i] + " " + last_names[i] + " " + phonenumber[i] + " (VIP) " + comm[i]);
								Console.WriteLine("");
							}
							menu();
						}
					}
					if (charKey.Key == ConsoleKey.NumPad2 || charKey.Key == ConsoleKey.D2)
					{
						Console.Clear();
						Console.WriteLine();
						Console.WriteLine("Введите фамилию");
						Console.WriteLine();
						string searchln = Console.ReadLine();
						Console.WriteLine("");
						Console.WriteLine("Результат поиска:");
						Console.WriteLine("");
						for (int i = 0; i < names.Length; i++)
						{
							if (last_names[i].Contains(searchln))
							{
								if (vip[i])
								{
									Console.WriteLine("№ " + (i + 1) + " " + names[i] + " " + last_names[i] + " " + phonenumber[i] + " (VIP) " + comm[i]);
									Console.WriteLine("");
								}
								else
								{
									Console.WriteLine("№ " + (i + 1) + " " + names[i] + " " + last_names[i] + " " + phonenumber[i] + " " + comm[i]);
									Console.WriteLine("");
								}
							}
						}
						Console.WriteLine("");
						menu();
					}
					if (charKey.Key == ConsoleKey.NumPad3 || charKey.Key == ConsoleKey.D3)
					{
						Console.Clear();
						Console.WriteLine();
						Console.WriteLine("Введите имя");
						Console.WriteLine();
						string searchn = Console.ReadLine();
						Console.WriteLine("");
						Console.WriteLine("Результат поиска:");
						Console.WriteLine("");
						for (int i = 0; i < names.Length; i++)
						{
							if (names[i].Contains(searchn))
							{
								if (vip[i])
								{
									Console.WriteLine("№ " + (i + 1) + " " + names[i] + " " + last_names[i] + " " + phonenumber[i] + " (VIP) " + comm[i]);
									Console.WriteLine("");
								}
								else
								{
									Console.WriteLine("№ " + (i + 1) + " " + names[i] + " " + last_names[i] + " " + phonenumber[i] + " " + comm[i]);
									Console.WriteLine("");
								}
							}
						}
						Console.WriteLine("");
						menu();

					}
					if (charKey.Key == ConsoleKey.NumPad4 || charKey.Key == ConsoleKey.D4)
					{
						Console.Clear();
						Console.WriteLine();
						Console.WriteLine("Введите номер телефона");
						Console.WriteLine();
						string searchf = Console.ReadLine();
						Console.WriteLine("");
						Console.WriteLine("Результат поиска:");
						Console.WriteLine("");
						for (int i = 0; i < names.Length; i++)
						{
							if (phonenumber[i].Contains(searchf))
							{
								if (vip[i])
								{
									Console.WriteLine("№ " + (i + 1) + " " + names[i] + " " + last_names[i] + " " + phonenumber[i] + " (VIP) " + comm[i]);
									Console.WriteLine("");
								}
								else
								{
									Console.WriteLine("№ " + (i + 1) + " " + names[i] + " " + last_names[i] + " " + phonenumber[i] + " " + comm[i]);
									Console.WriteLine("");
								}

							}
						}
						menu();
					}
				}
				else
				{
					Console.Clear();
				}
			}
		}
		static int readint()
			{
				int num;
				while (true)
				{
					Console.WriteLine();
					string x = Console.ReadLine();
					Console.WriteLine();
					bool a = Int32.TryParse(x, out num);
					if (a)
					{
						break;
					}
					else
					{
						Console.WriteLine("Должно быть число");
						Console.WriteLine();
					}
					Console.Clear();
				}
				return (Convert.ToInt32(num));
			}
		static void menu()
			{
				ConsoleKeyInfo charKey;
				Console.WriteLine("Любая кнопка - вернуться в меню.");
				charKey = Console.ReadKey();
				if (charKey.Key != ConsoleKey.NumPad1)
				{
					Console.Clear();
				}
				else if (charKey.Key != ConsoleKey.NumPad1)
				{
					Console.Clear();
				}
			}
		}
	}