import java.applet.*;
import com.sun.java.swing.JButton;
import symantec.itools.awt.shape.Rect;

import java.util.Vector;
import java.awt.*;
import java.awt.event.*;

public class Controller extends Applet implements ActionListener
{
    CoinDispenser coinDispenser;
    Dispenser dispenser;
    Menu menu;
    Vector availRecipes;
    protected GUI gui;
    Panel innerDisplayPanel;
    Vector buttons;
    Vector labels;
    
    //public Controller()
    public void init()
    {
        gui = new GUI(this);
        setSize(550,350);
        setLayout(new GridLayout());
        add(gui);
        coinDispenser = new CoinDispenser(this);
        dispenser = new Dispenser(this);
        menu = new Menu(this, dispenser);
        drawPanel();
    }
    
    void redrawPanel()
    {
        for (int i=0;i<buttons.size();i++)
        {
            gui.DisplayPanel.remove((Component) buttons.elementAt(i));
            gui.DisplayPanel.remove((Component) labels.elementAt(i));
        }
        buttons.removeAllElements();
        labels.removeAllElements();
        gui.DisplayPanel.setLayout(null);
        invalidate();
        drawPanel();
        validate();
        doLayout();
    }
    
    void drawPanel()
    {
        buttons = new Vector();
        labels = new Vector();
        availRecipes = menu.getRecipes();
        int length = availRecipes.size();
        int rows;
        int cols;
        if (length <= 5)
        {
            cols = length;
            rows = 1;
        }    
        else
        {
            cols = 5;
            rows = length/5;
            if (length%5 > 0)
                rows ++;
        }
        
        GridBagLayout grid = new GridBagLayout();
        gui.DisplayPanel.setLayout(grid);
        gui.DisplayPanel.validate();
        gui.DisplayPanel.doLayout();
        gui.DisplayPanel.setLayout(grid);
        GridBagConstraints constraints = new GridBagConstraints();
        constraints.fill = constraints.NONE;
        constraints.ipadx = 20;
        constraints.ipady = 20;
        constraints.insets = new Insets(0,5,0,5);
        int rowCount = 0;
        Button button;
        Label label;
        String command, buttonName;
        for (int i=0; i<length; i++)
        {
            constraints.gridx = i % 5;
            constraints.gridy = (i / 5) * 3 + 1;
            buttonName = ((Recipe) availRecipes.elementAt(i)).getName();
            button = new Button(buttonName);
            button.setActionCommand(buttonName);
            button.addActionListener(this);
            button.setVisible(true);
            buttons.addElement(button);
            grid.setConstraints(button, constraints);
            gui.DisplayPanel.add(button);
            constraints.gridy ++;
            Integer tempI = new Integer(((Recipe) availRecipes.elementAt(i)).getCost());
            label = new Label(tempI.toString());
            label.setAlignment(Label.CENTER);
            grid.setConstraints(label, constraints);
            label.setVisible(true);
            labels.addElement(label);
            gui.DisplayPanel.add(label);
        }
        gui.DisplayPanel.setVisible(true);
        repaint();
        gui.DisplayPanel.repaint();
        for (int i = 0; i < buttons.size(); i++)
        {
            ((Button) buttons.elementAt(i)).repaint();
            ((Label) labels.elementAt(i)).repaint();
        }
    }
    
    void coinInserted()
    {
      // get coin from GUI 
      // call coin dispenser with name of coin
      // update recipe list
      if (gui.MoneyActions.getSelectedItem().equals("Quarter"))
            coinDispenser.addQuarter();
      else if (gui.MoneyActions.getSelectedItem().equals("Dime"))
            coinDispenser.addDime();
      else if (gui.MoneyActions.getSelectedItem().equals("Nickel"))
            coinDispenser.addNickel();
              
      int deposited = coinDispenser.getDeposited();
      availRecipes = menu.getRecipes(deposited);
    }
    
    public void actionPerformed(ActionEvent e)
    {
        boolean success;
        String recipeName = new String(e.getActionCommand());
        int cost = menu.getRecipeCost(recipeName);
        int deposited = coinDispenser.getDeposited();
        if (cost <= deposited)
        {
            success = menu.makeRecipe(recipeName);
            if (success)
            {
                coinDispenser.returnChange(cost);
            }
            else
            {
                gui.ActionWindow.append("\nError!\n Change returned\n");
                coinDispenser.returnChange(0);
            }
            gui.InfoWindow.setText("Insert Coins -->");
            redrawPanel();
        }
        else
        {
            Integer diff = new Integer(cost-deposited);
            gui.InfoWindow.setText("Insert " + diff.toString() + " cents more -->");
        }
    }
    
    public static void Main()
    {
        Controller controller = new Controller();
    }
    
};