private static void AdminOptions()
{
ushort option;
Console.WriteLine("\r\nHello Admin\r\nChoose a option:" +
"\r\n1. Show all usernames.\r\n2. Change user date." +
"\r\n3. Change user role." +
"\r\n4. Show users activity(no filter)." +
"\r\n5. Show users activity(with filter - contains ).");
Console.Write("\r\nOption: ");
option = UInt16.Parse(Console.ReadLine());
Dictionary <string, int> allUsers = UserData.AllUsersUsernames();
switch (option)
{
case 1: ShowAllUsernames(); break;
case 2: ChangeUserDate(ref allUsers); break;
case 3: ChangeUserRole(ref allUsers); break;
case 4: UserData.ShowUserActivity(); break;
case 5: GetUserActivitiesWithFilter(); break;
default: Console.WriteLine("No such option in the menu"); break;
}
}