import java.util.Scanner;

public class LockClientDemoClass
{
	public static void main(String [] args)
	{
		menuMethod();
	}

	public static void menuMethod()
	{
		int x, y, z;
		Scanner sc = new Scanner(System.in);
		LockDataStructureClass nLock = new LockDataStructureClass();

  		while(true)
  		{
			System.out.println("\nPick a letter from the list for"
							   + " the lock simulator.");
			System.out.println(" A: Set a new lock combination ");
			System.out.println(" B: Closes lock");
			System.out.println(" C: Attempt opening lock ");
			System.out.println(" D: Lock Status ");
			System.out.println(" E: Check current number \n");

			char menuLetter = sc.next().charAt(0);
			menuLetter = Character.toUpperCase(menuLetter);

			switch(menuLetter)
			{
				case 'A':
				{
					System.out.println("\nSet the first number of lock combo.");
					x = sc.nextInt();

					System.out.println("Set the second number of lock combo.");
					y = sc.nextInt();

					System.out.println("Set the third number of lock combo.");
					z = sc.nextInt();

					nLock.alter(x, y, z);
					break;
				}


				case 'B':
				{
					System.out.println("Click!");
					nLock.close();
					nLock.inquire(LockDataStructureClass.sealed);
					break;
				}

				case 'C':
				{
					System.out.println("");

					System.out.println("Put the first number of lock combo.");
					x = sc.nextInt();

					System.out.println("Put the second number of lock combo.");
					y = sc.nextInt();

					System.out.println("Put the third number of lock combo.");
					z = sc.nextInt();

					nLock.attempt(x, y, z);
					break;

				}

				case 'D':
				{
					nLock.inquire(LockDataStructureClass.sealed);
					break;
				}

				case 'E':
				{
					System.out.println("The top number is now: "
								       + nLock.current());
					break;
				}

				case 'X':
				{
					System.out.println("Exiting lock.");
					return;
				}

				default:
				{
					System.out.println("\n*** Invalid choice! ***");
					System.out.println("Pick from A - E or X to quit.");
					break;
				}
			}
		}
	}
}