Homework 4

using System;

namespace Homework4
{
    class Program
    {
        static void Main(string[] args)
        {
            string[] fullname = new string[1];
            string[] position = new string[1];
            bool isMenu = true;
            int userInput;
            string newFullname;
            string newPosition;
            string fullnameSearch;
            int numberDossierDelete;

            while (isMenu)
            {
                Console.WriteLine("\nПриветствуем вас в меню!");
                Console.WriteLine("1 - Добавить досье\n2 - Вывод всех досье\n" +
                    "3 - Удалить досье\n4 - Поиск по фамилли\n5 - Выход");
                userInput = Convert.ToInt32(Console.ReadLine());

                switch(userInput)
                {
                    case 1:
                        Console.Write("Введите ФИО - ");
                        newFullname = Console.ReadLine();
                        Console.Write("Введите должность - ");
                        newPosition = Console.ReadLine();

                        FillingDossier(ref fullname,ref position, newFullname, newPosition);
                        break;

                    case 2:
                        PrintDossier(fullname, position);
                        break;

                    case 3:
                        Console.WriteLine($"Введите номер досье для удаления, номер последнего имеющего досье - {fullname.Length-1} ");
                        numberDossierDelete = Convert.ToInt32(Console.ReadLine());

                        if(numberDossierDelete < 1 || numberDossierDelete > fullname.Length - 1)
                        {
                            Console.WriteLine($"Нужно было ввести цифру от 1 до {fullname.Length - 1}");
                        }
                        else
                        {
                            DeleteDossier(ref fullname, ref position, numberDossierDelete);
                            PrintDossier(fullname, position);
                        }
                        break;

                    case 4:
                        Console.Write("Введите фамилию сотрудника, которого хотите найти - ");
                        fullnameSearch = Console.ReadLine();

                        SearchDossier(fullname, position ,fullnameSearch);
                        break;

                    case 5:
                        isMenu = false;
                        break;

                    default:
                        Console.WriteLine("Вы ввели что-то не то!");
                        break;
                }
            }
        }

        static void FillingDossier(ref string[] fullname,ref string[] position, string newFullname, string newPosition)
        {
            string[] tempFullname = new string[fullname.Length+1];
            string[] tempPosition = new string[position.Length+1];

            for(int i = 0; i < fullname.Length; i++)
            {
                tempFullname[i] = fullname[i];
                tempPosition[i] = position[i];
            }
            fullname = tempFullname;
            position = tempPosition;
            fullname[fullname.Length - 1] = newFullname;
            position[position.Length - 1] = newPosition;

        }

        static void PrintDossier(string[] fullname, string[] position)
        {
            for(int i = 1; i < fullname.Length; i++)
            {
                Console.Write($"- {i} {fullname[i]} {position[i]} ");
            }
        }

        static void DeleteDossier(ref string[] fullname,ref string[] position, int numberDossierDelete)
        {
            string[] tempFullname = new string[fullname.Length-1];
            string[] tempPosition = new string[position.Length-1];

            for (int i = numberDossierDelete; i < fullname.Length-1; i++ )
            {
                fullname[i] = fullname[i + 1];
                position[i] = position[i + 1];
            }

            for (int i = 0; i < fullname.Length-1; i++)
            {
                tempFullname[i] = fullname[i];
                tempPosition[i] = position[i];
            }
            fullname = tempFullname;
            position = tempPosition;
        }

        static void SearchDossier(string[] fullname, string[] position, string fullnameSearch)
        {

            for (int i = 1; i < fullname.Length; i++)
            {
                string[] splitFullname = fullname[i].Split(' ');

                if(fullnameSearch.ToLower() == splitFullname[0].ToLower())
                {
                    Console.WriteLine($"Сотрудник - {fullname[i]}, должность - {position[i]}");
                    break;
                }
            }

        }
    }
}