Menu.cs

namespace BasicContactList
{
    public class Menu
    {
        private readonly IContactManager contactManager;

        public Menu()
        {
            contactManager = new ContactManager();
        }

        public void PrintMenu()
        {
            Console.WriteLine("Enter 1 to Add new contact");
            Console.WriteLine("Enter 2 to delete contact");
            Console.WriteLine("Enter 3 to update contact");
            Console.WriteLine("Enter 4 to Search contact");
            Console.WriteLine("Enter 5 to Print all contacts");
            Console.WriteLine("Enter 0 to Exit");
        }

        public void MyMenu()
        {
            bool exit = false;

            while (!exit)
            {
                Console.Clear();
                PrintMenu();
                int option;
                
                if (int.TryParse(Console.ReadLine(), out option))
                {
                    switch (option)
                    {
                        case 0:
                            exit = true;
                            break;
                        case 1:
                            Console.Write("Enter contact name: ");
                            var name = Console.ReadLine()!;
                            Console.Write("Enter phone number: ");
                            var phoneNumber = Console.ReadLine()!;
                            Console.Write("Enter email: ");
                            var email = Console.ReadLine()!;
                            var contactTypeInt = Utility.SelectEnum("Select contact type:\n1 Family & Friends\n2 Work Or Business: ", 1, 2);
                            var contactType = (ContactType)contactTypeInt;
                            contactManager.AddContact(name, phoneNumber, email, contactType);
                            break;
                        case 2:
                            Console.Write("Enter phone number of the contact to delete: ");
                            string phone = Console.ReadLine()!;
                            contactManager.DeleteContact(phone);
                            break;
                        case 3:
                            Console.Write("Enter contact name: ");
                            var nameToEdit = Console.ReadLine()!;
                            Console.WriteLine("Enter phone number: ");
                            var phoneToEdit = Console.ReadLine()!;
                            Console.WriteLine("Enter email: ");
                            var emailToEdit = Console.ReadLine()!;
                            contactManager.UpdateContact(phoneToEdit, nameToEdit, emailToEdit);
                            break;
                        case 4:
                            Console.Write("Enter phone number of contact to search:");
                            var search = Console.ReadLine()!;
                            contactManager.GetContact(search);
                            break;
                        case 5:
                            contactManager.GetAllContacts();
                            break;
                        default:
                            Console.WriteLine("Unknown operation!");
                            break;
                    }

                    if (!exit)
                    {
                        HoldScreen();
                    }
                }
            }
        }

        private void HoldScreen()
        {
            Console.WriteLine("Press any key to continue.");
            Console.ReadKey();
        }
    }
}