/*
	This is a simple restaurant Menu
	
*
*/

import javax.swing.*;
import java.awt.event.*;
import java.awt.*;
import javax.swing.tree.*;
import javax.swing.event.*;
import java.text.DecimalFormat;
import java.text.NumberFormat;

public class RestaurantMenu extends JFrame
{
	private JPanel mainPanel;
	private JPanel textPanel;
	private JPanel treePanel;
	private JPanel buttonPanel;
	private JButton calculate;
	private JButton select;
	private JButton remove;
	private JButton removeall;
	private JButton exit;
	private JButton fivediscount;
	private JButton tendiscount;
	private JTree tree;
	private DefaultTreeModel model;
	private JTextArea textArea;
	private double sum = 0.0;
	private double taxsum = 0.0;
	private double discount = 0.0;
	
	public RestaurantMenu()
	{
		// Sets the title of the Frame
		
		setTitle("\u6B22 " + "\u8FCE" + "Dream Island Menu");
		
		// Sets the size of the Frame
		
		setSize(1300, 780);
		
		// Sets the start location of the window
		
		setLocationRelativeTo(null);
		
		// Sets the close action of the frame
		
		setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		
		// Create the main panel with a border layout
		
		mainPanel = new JPanel();
		mainPanel.setLayout(new BorderLayout());
		
		// the JTree panel
		
		treePanel = new JPanel();
		
		// Create empty tree nodes
		
		DefaultMutableTreeNode root, Appetizer, Soup, Chef_Rec, Chop_Suey;
		
		// Creating the root directory
		
		root = new DefaultMutableTreeNode("Dream Island Menu");
		
		// Creating child nodes
		
		Appetizer = new DefaultMutableTreeNode("Appetizer");
		Soup = new DefaultMutableTreeNode("Soup");
		Chef_Rec = new DefaultMutableTreeNode("Chef's Recommendation");
		Chop_Suey = new DefaultMutableTreeNode("Chop Suey");
		
		
		// Adding child nodes to the parent node
		
		root.add(Appetizer);
		root.add(Soup);
		root.add(Chef_Rec);
		root.add(Chop_Suey);
		
		// Creating child nodes for Appetizer
		
		DefaultMutableTreeNode eggroll = new DefaultMutableTreeNode("Egg Rolls (4).........................$4.25");
		DefaultMutableTreeNode fwonton = new DefaultMutableTreeNode("Fried Wonton (10)......................$3.50");
		DefaultMutableTreeNode fcheese = new DefaultMutableTreeNode("Fried Cream Cheese Wonton (10) ......$4.25");
		DefaultMutableTreeNode fshrimp = new DefaultMutableTreeNode("Fried Shrimp (6).......................$5.50");
		DefaultMutableTreeNode paperchick = new DefaultMutableTreeNode("Paper Wrapped Chicken.................$4.95");
		DefaultMutableTreeNode spdumpling = new DefaultMutableTreeNode("Steamed/Pan Fried Dumping (8).........$4.50");
		DefaultMutableTreeNode chickwings = new DefaultMutableTreeNode("Chicken Wings in spicy Salt* .........$5.95");
		DefaultMutableTreeNode hffries = new DefaultMutableTreeNode("House French Fries.......................$3.25");
		
		// Add the nodes to the Appetize
		
		Appetizer.add(eggroll);
		Appetizer.add(fwonton);
		Appetizer.add(fcheese);
		Appetizer.add(fshrimp);
		Appetizer.add(paperchick);
		Appetizer.add(spdumpling);
		Appetizer.add(chickwings);
		Appetizer.add(hffries);

		// Creating child nodes for Soup
		
		DefaultMutableTreeNode eggDsoup = new DefaultMutableTreeNode("Egg Drop Soup...............$4.95");
		DefaultMutableTreeNode hsoursoup = new DefaultMutableTreeNode("Hot & Sour Soup* ...............$5.25");
		DefaultMutableTreeNode sizzlingsoup = new DefaultMutableTreeNode("Sizzling Rice Soup..........$6.95");
		DefaultMutableTreeNode cCornsoup = new DefaultMutableTreeNode("Chicken Corn  Soup................$5.50");
		DefaultMutableTreeNode seaFoodsoup = new DefaultMutableTreeNode("Seafood Soup..................$6.95");
		
		// Add the ndoes to the Soup
		
		Soup.add(eggDsoup);
		Soup.add(hsoursoup);
		Soup.add(sizzlingsoup);
		Soup.add(cCornsoup);
		Soup.add(seaFoodsoup);
		
		// Creating child nodes for chef's recommendation
		
		DefaultMutableTreeNode lotus = new DefaultMutableTreeNode("Lotus Root in Fu-Chung Bean Curd Sauce...........$7.95");
		DefaultMutableTreeNode squid = new DefaultMutableTreeNode("Squid with Sweet & Sour Mustard Greens*...........$8.95");
		DefaultMutableTreeNode chickFrice = new DefaultMutableTreeNode("Chicken Fried Rice with Ginger...............$7.25");
		DefaultMutableTreeNode homerib = new DefaultMutableTreeNode("Home Style Cut Spare Ribs.......................$8.25");
		DefaultMutableTreeNode fishfillet = new DefaultMutableTreeNode("Fish Fillet with Assorted Sweet Vegetables...$8.95");
		DefaultMutableTreeNode bakepork = new DefaultMutableTreeNode("Baked Pork Chop Pasta or Rice.................$6.95");
		DefaultMutableTreeNode cWing = new DefaultMutableTreeNode("Chicken Wing / Ribs in Honey Garlic Sauce........$7.95");
		DefaultMutableTreeNode fishFlemon = new DefaultMutableTreeNode("Fish Fillet / Chicken in Spicy Lemon Sauce....$8.25");
		DefaultMutableTreeNode cFchick = new DefaultMutableTreeNode("Crispy Fried chicken (Half)....................$7.95");
		DefaultMutableTreeNode sSeafood = new DefaultMutableTreeNode("Sauteed Seadfood with Macadamia Nut...........$10.25");
		DefaultMutableTreeNode sSeaTofu = new DefaultMutableTreeNode("Sauteed Seafood with Tofu....................$9.95");
		DefaultMutableTreeNode houseFish = new DefaultMutableTreeNode("House Special Fish Fillet* .................$8.50");
		DefaultMutableTreeNode sPineNuts = new DefaultMutableTreeNode("Shrimp with Pine Nuts.......................$9.95");

		// Add the nodes to the chef's recommendation

		Chef_Rec.add(lotus);
		Chef_Rec.add(squid);
		Chef_Rec.add(chickFrice);
		Chef_Rec.add(homerib);
		Chef_Rec.add(fishfillet);
		Chef_Rec.add(bakepork);
		Chef_Rec.add(cWing);
		Chef_Rec.add(fishFlemon);
		Chef_Rec.add(cFchick);
		Chef_Rec.add(sSeafood);
		Chef_Rec.add(sSeaTofu);
		Chef_Rec.add(houseFish);
		Chef_Rec.add(sPineNuts);
		
		// Creating child nodes for Chop Suey
		
		DefaultMutableTreeNode porkSuey = new DefaultMutableTreeNode("Pork Chop Suey..............$7.50");
		DefaultMutableTreeNode beefSuey = new DefaultMutableTreeNode("Beef Chop Suey..............$7.50");
		DefaultMutableTreeNode chickSuey = new DefaultMutableTreeNode("Chicken Chop Suey..............$7.50");
		DefaultMutableTreeNode shrimpSuey = new DefaultMutableTreeNode("Shrimp Chop Suey..............$9.95");
		DefaultMutableTreeNode combSuey = new DefaultMutableTreeNode("Combination Chop Suey..............$8.95");
		
		// Add the nodes to the Chop Suey
		
		Chop_Suey.add(porkSuey);
		Chop_Suey.add(beefSuey);
		Chop_Suey.add(chickSuey);
		Chop_Suey.add(shrimpSuey);
		Chop_Suey.add(combSuey);
		
		 
		// Creates a tree that display the started node
		
		tree = new JTree(root);
		
		// Create the tree selection model and set the tree model
		
		tree.getSelectionModel().setSelectionMode(TreeSelectionModel.SINGLE_TREE_SELECTION);
		
		// Sets the number of rows visible in the display
		
		tree.setVisibleRowCount(30);
		
		// Add the scroll pane to the tree
		
		JScrollPane sp = new JScrollPane(tree);
		
		// Sets the preferred size for scroll pane
		
		sp.setPreferredSize(new Dimension(350, 500));
		
		// Add the scroll panel to the panel
		
		treePanel.add(sp);
		
		// Add the treePanel to the main panel
		
		mainPanel.add(treePanel, BorderLayout.WEST);
		
		// Create a text area panel
		
		textPanel = new JPanel();
		
		// Creates a JText area 
		
		textArea = new JTextArea("", 20, 50);
		
		// Sets the editability of the text area
		
		textArea.setEditable(false);
		
		// Add the text area to the scroll pane
		
		JScrollPane scroll = new JScrollPane(textArea);
		
		// Add the scroll pane to the panel
		
		textPanel.add(scroll);
		
		// Add the text panel to the main panel
		
		mainPanel.add(textPanel, BorderLayout.EAST);
		
		// Create a horizontal box
		
		Box box = Box.createHorizontalBox();
		
		// Create a button panel
		
		buttonPanel = new JPanel();
		
		// Create buttons
		
		removeall = new JButton("Remove All");
		select = new JButton("Select");
		calculate = new JButton("Calculate");
		fivediscount = new JButton("5% discount");
		tendiscount = new JButton("10% discount");
		remove = new JButton("Remove");
		exit = new JButton("Exit");
		
		// Add the buttons to the box
		
		box.add(removeall);
		box.add(Box.createHorizontalStrut(60));
		
		box.add(select);
		box.add(calculate);
		box.add(fivediscount);
		box.add(tendiscount);	
		box.add(remove);
		
		box.add(Box.createHorizontalStrut(60));
		box.add(exit);
		
		// Add the box to the button panel
		
		buttonPanel.add(box);
		
		// Create the event listener for the buttons
		
		calculate.addActionListener(new ButtonListener());
		removeall.addActionListener(new ButtonListener());
		select.addActionListener(new ButtonListener());
		remove.addActionListener(new ButtonListener());
		exit.addActionListener(new ButtonListener());
		fivediscount.addActionListener(new ButtonListener());
		tendiscount.addActionListener(new ButtonListener());
		
		// Add the button panel to the main panel
		
		mainPanel.add(buttonPanel, BorderLayout.SOUTH);

		
		// Add the main panel to the content pane
		
		add(mainPanel);
		
		
		// Set the window to be visible
		
		setVisible(true);
		
	}
	
	
	private class ButtonListener implements ActionListener
	{
		public void actionPerformed(ActionEvent e)
		{
			
			try
			{
				NumberFormat formatter = new DecimalFormat("#0.00");
			
				if(e.getSource()==select)
				{
					Object getSelect = tree.getLastSelectedPathComponent();
				
					DefaultMutableTreeNode creating = (DefaultMutableTreeNode) getSelect;
				
					String title = (String)creating.getUserObject();
				
					textArea.append(title + "\n");
					
					if(title.equals("Egg Rolls (4).........................$4.25"))
					{
						sum += 4.25;
						
					}
					
					else if(title.equals("Fried Wonton (10)......................$3.50"))
					{
						sum += 3.50;
					}
					
					else if(title.equals("Fried Cream Cheese Wonton (10) ......$4.25"))
					{
						sum += 4.25;
						
					}
					
					else if(title.equals("Fried Shrimp (6).......................$5.50"))
					{
						sum += 5.50;
						
					}
					
					else if(title.equals("Paper Wrapped Chicken.................$4.95"))
					{
						sum += 4.95;
					}
					
					else if(title.equals("Steamed/Pan Fried Dumping (8).........$4.50"))
					{
						sum += 4.50;
						
					}
					
					else if(title.equals("Chicken Wings in spicy Salt* .........$5.95"))
					{
						sum += 5.95;
					}
					
					else if(title.equals("House French Fries.......................$3.25"))
					{
						sum += 3.25;
					}
					
					else if(title.equals("Egg Drop Soup...............$4.95"))
					{
						sum += 4.95;
						
					}
					
					else if(title.equals("Hot & Sour Soup* ...............$5.25"))
					{
						sum += 5.25;
						
					}
					
					else if(title.equals("Sizzling Rice Soup..........$6.95"))
					{
						sum += 6.95;
						
					}
					
					else if(title.equals("Chicken Corn  Soup................$5.50"))
					{
						sum += 5.50;
						
					}
				
					else if(title.equals("Seafood Soup..................$6.95"))
					{
						sum += 6.95;
						
					}
					
					else if(title.equals("Lotus Root in Fu-Chung Bean Curd Sauce...........$7.95"))
					{
						sum += 7.95;
						
					}
					
					else if(title.equals("Squid with Sweet & Sour Mustard Greens*...........$8.95"))
					{
						sum += 8.95;
						
					}
					
					else if(title.equals("Chicken Fried Rice with Ginger...............$7.25"))
					{
						sum += 7.25;
						
					}
					
					else if(title.equals("Home Style Cut Spare Ribs.......................$8.25"))
					{
						sum += 8.25;
						
					}
					
					else if(title.equals("Fish Fillet with Assorted Sweet Vegetables...$8.95"))
					{
						sum += 8.95;
						
					}
					
					else if(title.equals("Baked Pork Chop Pasta or Rice.................$6.95"))
					{
						sum += 6.95;
						
					}
					
					else if(title.equals("Chicken Wing / Ribs in Honey Garlic Sauce........$7.95"))
					{
						sum += 7.95;
						
					}
					
					else if(title.equals("Fish Fillet / Chicken in Spicy Lemon Sauce....$8.25"))
					{
						sum += 8.25;
						
					}
					
					else if(title.equals("Crispy Fried chicken (Half)....................$7.95"))
					{
						sum += 7.95;
						
					}
					
					else if(title.equals("Sauteed Seadfood with Macadamia Nut...........$10.25"))
					{
						sum += 10.25;
						
					}
					
					else if(title.equals("Sauteed Seafood with Tofu....................$9.95"))
					{
						sum += 9.95;
						
					}
					
					else if(title.equals("House Special Fish Fillet* .................$8.50"))
					{
						sum += 8.50;
						
					}
					
					else if(title.equals("Shrimp with Pine Nuts.......................$9.95"))
					{
						sum += 9.95;
						
					}
					
					else if(title.equals("Pork Chop Suey..............$7.50"))
					{
						sum += 7.50;
						
					}
					
					else if(title.equals("Beef Chop Suey..............$7.50"))
					{
						sum += 7.50;
						
					}
					
					else if(title.equals("Chicken Chop Suey..............$7.50"))
					{
						sum += 7.50;
						
					}
					
					else if(title.equals("Shrimp Chop Suey..............$9.95"))
					{
						sum += 9.95;
						
					}
					
					else if(title.equals("Combination Chop Suey..............$8.95"))
					{
						sum += 8.95;
						
					}
					
				}
				
				
				if(e.getSource()==calculate)
				{
					double tax = 0.0;
					
					tax = sum * 0.0978;
					
					sum -= discount;
					
					taxsum = tax + sum;
					
					JOptionPane.showMessageDialog(null, "The total is " + sum + "\n Tax rate is 9.75% " +
															"\nTotal with tax is "+ formatter.format(taxsum));
				
				}			
			
				if(e.getSource()==remove)
				{
					String title = textArea.getSelectedText();
					
					textArea.replaceSelection("");
					
					if(title.equals("Egg Rolls (4).........................$4.25"))
					{
						sum -= 4.25;
						
					}
					
					else if(title.equals("Fried Wonton (10)......................$3.50"))
					{
						sum -= 3.50;
					
					}
					
					else if(title.equals("Fried Cream Cheese Wonton (10) ......$4.25"))
					{
						sum -= 4.25;
					}
					
					else if(title.equals("Fried Shrimp (6).......................$5.50"))
					{
						sum -= 5.50;
						
					}
					
					else if(title.equals("Paper Wrapped Chicken.................$4.95"))
					{
						sum -= 4.95;
						
					}
					
					else if(title.equals("Steamed/Pan Fried Dumping (8).........$4.50"))
					{
						sum -= 4.50;
						
					}
					else if(title.equals("Chicken Wings in spicy Salt* .........$5.95"))
					{
						sum -= 5.95;
					}
					
					else if(title.equals("House French Fries.......................$3.25"))
					{
						sum -= 3.25;
					}
					
					else if(title.equals("Egg Drop Soup...............$4.95"))
					{
						sum -= 4.95;
						
					}
					
					else if(title.equals("Hot & Sour Soup* ...............$5.25"))
					{
						sum -= 5.25;
						
					}
					
					else if(title.equals("Sizzling Rice Soup..........$6.95"))
					{
						sum -= 6.95;
						
					}
					
					else if(title.equals("Chicken Corn  Soup................$5.50"))
					{
						sum -= 5.50;
						
					}
					
					else if(title.equals("Seafood Soup..................$6.95"))
					{
						sum -= 6.95;
						
					}
					
					else if(title.equals("Lotus Root in Fu-Chung Bean Curd Sauce...........$7.95"))
					{
						sum -= 7.95;
						
					}
					
					else if(title.equals("Squid with Sweet & Sour Mustard Greens*...........$8.95"))
					{
						sum -= 8.95;
						
					}
					
					else if(title.equals("Chicken Fried Rice with Ginger...............$7.25"))
					{
						sum -= 7.25;
						
					}
					
					else if(title.equals("Home Style Cut Spare Ribs.......................$8.25"))
					{
						sum -= 8.25;
						
					}
					
					else if(title.equals("Fish Fillet with Assorted Sweet Vegetables...$8.95"))
					{
						sum -= 8.95;
						
					}
					
					else if(title.equals("Baked Pork Chop Pasta or Rice.................$6.95"))
					{
						sum -= 6.95;
						
					}
					
					else if(title.equals("Chicken Wing / Ribs in Honey Garlic Sauce........$7.95"))
					{
						sum -= 7.95;
						
					}
					
					else if(title.equals("Fish Fillet / Chicken in Spicy Lemon Sauce....$8.25"))
					{
						sum -= 8.25;
						
					}
					
					else if(title.equals("Crispy Fried chicken (Half)....................$7.95"))
					{
						sum -= 7.95;
						
					}
					
					else if(title.equals("Sauteed Seadfood with Macadamia Nut...........$10.25"))
					{
						sum -= 10.25;
						
					}
					
					else if(title.equals("Sauteed Seafood with Tofu....................$9.95"))
					{
						sum -= 9.95;
						
					}
					
					else if(title.equals("House Special Fish Fillet* .................$8.50"))
					{
						sum -= 8.50;
						
					}
					
					else if(title.equals("Shrimp with Pine Nuts.......................$9.95"))
					{
						sum -= 9.95;
						
					}
					
					else if(title.equals("Pork Chop Suey..............$7.50"))
					{
						sum -= 7.50;
						
					}
					
					else if(title.equals("Beef Chop Suey..............$7.50"))
					{
						sum -= 7.50;
						
					}
					
					else if(title.equals("Chicken Chop Suey..............$7.50"))
					{
						sum -= 7.50;
						
					}
					
					else if(title.equals("Shrimp Chop Suey..............$9.95"))
					{
						sum -= 9.95;
						
					}
					
					else if(title.equals("Combination Chop Suey..............$8.95"))
					{
						sum -= 8.95;
						
					}		
							
				}
				
					
				if(e.getSource()==exit)
				{
					System.exit(0);
					
				}
				
				if(e.getSource()==removeall)
				{
					textArea.setText("");
					sum = 0.0;
					
				}
				
				if(e.getSource()==fivediscount)
				{
					
					discount = sum * 0.05;
					
				}
				
				if(e.getSource()==tendiscount)
				{
					
					discount = sum * 0.1;
					
				}
					
					
				
			}
			catch(NullPointerException ae)
			{
			}
			catch(NumberFormatException ne)
			{
			}
			
		}
	}
	
	public static void main(String[] args)
	{
		new RestaurantMenu();
		
	}
	
}