import java.util.*;
import javax.swing.JOptionPane;
/**
 * Write a description of class GameBoardController here.
 * 
 * @author (your name) 
 * @version (a version number or a date)
 */
public class GameBoardController
{
  private GameBoard game ;
  private Scanner scan ;
  private Stack<GameBoard> undoStack;
    public GameBoardController(){  
        game = new GameBoard();
        scan = new Scanner(System.in);
        undoStack = new Stack<GameBoard>();
    }
    
    public void startGame(){
        game.populateGameCells();
        
       
        
        game.printGameBoard();
        gameMenu();
    }
    
    public void gameMenu(){
        char choice;
        int  row;
        int  row2;
        int  finalCellRow;
        int  holdingCellRow;
        
       	undoStack.push(new GameBoard(game)); // saving game state here <-----------------------




        System.out.println("What would you like to do?");
        System.out.println("A: Move from stack of cards to another stack of cards\n"
                + "B: Move Card from Stack to Holding Row\n"
                + "C: Move Card from Holding Row to Stack of Cards\n"
                + "D: Move Card from Stacks to Final Row\n" 
                + "E: Move Card from Holding Row to Final Row\n"
                + "F: Undo");
       
        choice = scan.next().toUpperCase().charAt(0);
        
        
        try{
        switch (choice) {
        
            case 'A': 
                System.out.println("Enter Row nubmer to get card from");
                row = scan.nextInt();
                System.out.println("Enter Row numer to place card on");
                row2 = scan.nextInt();
                game.rowToRow(row2, row);
                break;
            case 'B':
                System.out.println("Enter Row nubmer to get card from");
                row = scan.nextInt();
                System.out.println("Enter holding cell nubmer to place card on");
                row2 = scan.nextInt();
                game.rowToHoldingCell(row2, row);
                break;
            case 'C':
                System.out.println("Enter Holding Row nubmer to get card from");
                row = scan.nextInt();
                System.out.println("Enter Row of Stack of Card to put card on");
                row2 = scan.nextInt();
                game.holdingCellToRow(row2, row);
                break;
            case 'D':
                System.out.println("Enter Row nubmer to get card from");
                row = scan.nextInt();
                System.out.println("Enter final cell nubmer to place card on");
                row2 = scan.nextInt();
                game.rowToFinalCell(row2, row);
                break;
            case 'E':
                System.out.println("Enter Holding Row nubmer to get card from");
                row = scan.nextInt();
                System.out.println("Enter Final row number to put card on");
                row2 = scan.nextInt();
                game.holdingCellToFinalCell(row2, row);
                break;
            case 'F':
                undo();
                break;
                
                
            default: 
                JOptionPane.showMessageDialog(null, "Letters are required!");
                break;
                
            }
        }catch(InputMismatchException e){
             JOptionPane.showMessageDialog(null, "Numbers are required!");
            }
            
        
       
        game.printGameBoard();
        gameMenu();
    
     
    }

    
    public void undo(){
  game = undoStack.pop(); // Changing game state here
  
}

}