static void Main(string [] args)
{
todoSvc = new ToDoService(new ListRepository());
Boolean exit = false;
string [] menus = { "New Todo", "List Todo", "Update Todo",
"Delete Todo", "End Application" };
// Action -> type data C# untuk refer ke fuction tanpa parameter dan return type
// Action<int> -> terima 1 parameter integer return void
// Func<int, string> -> terima 1 parameter int, return string
Dictionary <string, Action> commands = new Dictionary <string, Action> {
{ "new", NewTodoForm },
{ "list", ListTodo },
{ "update", () => Console.WriteLine("update") },
{ "delete", DeleteTodo },
{ "end", () => exit = true }
};
Action otherCommand = () => Console.WriteLine("Command salah");
do
{
displayMenu(menus);
string command = getUserChoice();
Action action = otherCommand;
if (commands.ContainsKey(command))
{
action = commands[command];
}
action();
} while (!exit);
}
static void NewTodoForm()
{
ToDo todo = ToDoService.BlankTodo();
Console.WriteLine("New Todo");
Console.Write("Input tanggal dan waktu (yyyy-mm-dd hh:mm), kosongkan untuk waktu sekarang: ");
string waktu = Console.ReadLine().Trim();
if (waktu != "")
{
todo.waktu = DateTime.Parse(waktu);
}
Console.Write("Keterangan: ");
todo.keterangan = Console.ReadLine();
Maybe <ToDo> newTodo = todoSvc.Create(
todo.waktu, todo.keterangan
);
string hasil = "berhasil";
if (newTodo is Nothing <ToDo> )
{
hasil = "gagal";
}
Console.WriteLine($"Simpan: {hasil}");
}
