public Administrator()
        {
            Fund             = new Fund();
            BuildingFromJson = new BuildingFromJson();
            Building         = BuildingFromJson.GetBuilding().Result;
            Building.SetRent();

            IssueASalary += Fund.PayDirector;
            IssueASalary += Fund.PayAccounter;
            IssueASalary += Fund.PayCleaner;
            IssueASalary += Fund.PayTrashman;
            IssueASalary += Fund.MakeSavings;

            foreach (Apartment apartment in Building.Apartments)
            {
                apartment.PayRent += Fund.GetRent;
            }
        }
        public void Menu()
        {
            Console.WriteLine("Welcome to OSBB manager!\n");
            do
            {
                Console.WriteLine("\nChoose action:\n\n1\tMake a payment\n2\tRefill account\n3\tShow information about seperate apartment\n4\tShow information about building\n5\tShow information about fund\n6\tWithdraw money from savings\n0\tExit\n\nEnter a digit: ");
                int choice = Convert.ToInt32(Console.ReadLine());
                switch (choice)
                {
                case 0:
                {
                    Console.WriteLine("Are you sure? y - yes, n - no");
                    string exit = Console.ReadLine();
                    if (exit[0] == 'y')
                    {
                        Environment.Exit(0);
                    }
                    else
                    {
                        break;
                    }
                }
                break;

                case 1:
                {
                    DoOperation();
                }
                break;

                case 2:
                {
                    Console.WriteLine("Enter number of apartment:");
                    int num = Convert.ToInt32(Console.ReadLine());
                    Console.WriteLine("Enter a sum of refill:");
                    int sum = Convert.ToInt32(Console.ReadLine());
                    RefillScore(sum, num);
                    Console.WriteLine();
                }
                break;

                case 3:
                {
                    Console.WriteLine("Enter number of apartment:");
                    int num = Convert.ToInt32(Console.ReadLine());
                    try
                    {
                        Apartment selected = Building.Apartments.First(x => x.Number == num);
                        selected.ShowApartment();
                        Console.WriteLine();
                    }
                    catch (InvalidOperationException)
                    {
                        Console.WriteLine("Wrong apartment number");
                    }
                }
                break;

                case 4:
                {
                    Building.ShowBuilding();
                    Console.WriteLine();
                }
                break;

                case 5:
                {
                    Console.WriteLine(Fund);
                    Console.WriteLine();
                }
                break;

                case 6:
                {
                    Console.WriteLine("Enter a sum of withdraw:");
                    int sum = Convert.ToInt32(Console.ReadLine());
                    Console.WriteLine();
                    Fund.WithdrawSavings(sum);
                }
                break;

                default:
                {
                    Console.WriteLine("Invalid digit. Please try again.");
                    Console.WriteLine();
                }
                break;
                }
            } while (true);
        }