package fauxExchange;

import javax.swing.*;
import java.awt.*;
import java.awt.event.*;

/** 
 * This code is for a demonstration interface only.  This code does not take
 * responsibility as the model code for the rest of the Faux Exchange System.
 * Please view 30+ other classes for examples of correctly written OO code.
 *
 * @author A C Programmer Hooked On Java
 */

public class FauxApp {
	JFrame main;
	OrderRunner orderThread;
	Exchange exchange;
	OrderBook current;
	JLabel currentSecurityLbl;
	int queueSize = 50;
	OrderBook[] books;
	final SizedQueue[] prices = new SizedQueue[5];
	
//	SizedQueue prices = new SizedQueue(queueSize);
	
//	public SizedQueue getPriceQueue (){ return prices; };
	
	public FauxApp () {
		main = new JFrame("The Faux Exchange Server");
		main.getContentPane().setLayout(new BorderLayout());
		main.getContentPane().add(createComponents(), BorderLayout.CENTER);
		main.setJMenuBar(createMenu());

		main.addWindowListener(new WindowAdapter() {
	    public void windowClosing(WindowEvent e) {
	    	if (exchange!=null) exchange.closeLog();
	    	System.exit(0);
	    }
    });
    
    main.pack();
//    main.setSize(300, 300);
    main.setLocation(250, 250);
    main.setVisible(true);
    main.repaint();
	}
	
	protected JMenuBar createMenu(){
		JMenuItem menuItem;
		
		JMenuBar menu = new JMenuBar();
		
		JMenu main = new JMenu("Exchange");	
		main.setMnemonic('e');

		menuItem = new JMenuItem("Open Exchange");
		menuItem.setMnemonic('o');
		menuItem.addActionListener(new ActionListener(){
			public void actionPerformed(ActionEvent ae){
				handleOpenExchange(ae);
			}
		});
		main.add(menuItem);
		
		menuItem = new JMenuItem("Open Electronic Ordering");
		menuItem.setMnemonic('e');
		menuItem.addActionListener(new ActionListener(){
			public void actionPerformed(ActionEvent ae){
				handleOpenElectronicExchange(ae);
			}
		});
		main.add(menuItem);		
		
		menuItem = new JMenuItem("Select Security");
		menuItem.addActionListener(new ActionListener(){
			public void actionPerformed(ActionEvent ae){
				handleSelectSecurity(ae);
			}
		});
		menuItem.setMnemonic('s');
		main.add(menuItem);
		
		menuItem = new JMenuItem("View Security Prices");
		menuItem.setMnemonic('v');
		menuItem.addActionListener(new ActionListener(){
			public void actionPerformed(ActionEvent ae){
				handleViewPrices(ae);
			}
		});
		
		main.add(menuItem);
		main.addSeparator();
		
		menuItem = new JMenuItem("Exit Faux Exchange");
		menuItem.setMnemonic('x');
		menuItem.addActionListener(new ActionListener(){
			public void actionPerformed(ActionEvent ae){
				if (exchange != null) exchange.closeLog();
				System.exit(0);
			}
		});
		
		main.add(menuItem);
		
		menu.add(main);
		
		return menu;
	}
	
	protected JComponent createComponents (){
		JPanel root = new JPanel();

		root.setLayout(new BorderLayout());
		
		JPanel north = new JPanel();
		currentSecurityLbl = new JLabel("No Security Selected");
		north.add(currentSecurityLbl, BorderLayout.CENTER);
		
		JPanel center = new JPanel();
		center.setLayout(new FlowLayout());
		
		JButton breakBtn = new JButton("Break Trading");
		breakBtn.setText("Break Trading");
		breakBtn.setMnemonic('b');
		breakBtn.addActionListener(new ActionListener(){
			public void actionPerformed(ActionEvent ae){
				handleBreakBtn(ae);
			}
		});
		JButton tradeBtn = new JButton("Open Trading");
		tradeBtn.setText("Start Trading");
		tradeBtn.setMnemonic('t');
		tradeBtn.addActionListener(new ActionListener(){
			public void actionPerformed(ActionEvent ae){
				handleOpeningTradingBtn(ae);
			}
		});
		JButton viewOrderBookBtn = new JButton("View Order Book");
		viewOrderBookBtn.setText("View Order Book");
		viewOrderBookBtn.setMnemonic('v');
		viewOrderBookBtn.addActionListener(new ActionListener(){
			public void actionPerformed(ActionEvent ae){
				handleOrderBookBtn(ae);
			}
		});
		
		center.add(breakBtn);
		center.add(tradeBtn);
		center.add(viewOrderBookBtn);
		
		root.add(north, BorderLayout.NORTH);
		root.add(center, BorderLayout.CENTER);
				
		return root;
	}
	
	protected void setCurrentBook(OrderBook book){
		current = book;
		
		currentSecurityLbl.setText(book.getSecurity().getSymbol());	
	}
	
	protected Exchange createExchange (){
		// Create the exchange
		System.out.println("Creating Exchange...");		
		Exchange myExchange = new Exchange();
		
		OrderBook ob = null;
		
		// Create the Segments in this Exchange
		System.out.println("Creating Segments...");		
		Segment [] segs = new Segment[1];
		int[] securityIds = new int[5];
		double[] openingPrices = new double[5];
		
		segs[0] = new Segment(myExchange, 1);
		String [] symbols = {"Buzz Word Central", "B2B-XML-ASP", "Qualis ICG", "E-CliffSoftB2B.com", "Torsten, Inc."};
		
		for (int i = 0; i < 5; i++){		
			// Create a Security
			System.out.println("Creating Security: " + (i+1));				
			Security sec = new Security(i + 1, symbols[i], segs[0]);
			securityIds[i] = i+1;
			
			// Create an OrderBook for this Security
			System.out.println("Creating an OrderBook for this Security...");				
			ob = new OrderBook(sec);
			ob.initializePrice(94.00+i, 98.50+(i+2));
			openingPrices[i] = ob.getOpeningPrice();
			
			ob.startWorker();

			myExchange.registerOrderBook(ob);
		}
		
		// Add these Segments to the Exchange
		System.out.println("Setting Segments in Exchange...");				
		myExchange.setSegments(segs);
			
		myExchange.openLog();
		myExchange.setLogTrades(true);
		
		orderThread = new OrderRunner(myExchange, securityIds, openingPrices, 0.1, 10);
//		orderThread.start();
		
		setCurrentBook(ob);
		
		this.books = myExchange.getOrderBooks();
		
		return myExchange;
	}
	
	protected void handleOpenElectronicExchange(ActionEvent ae){
		orderThread.start();
		
		WorkerThread[] workers = new WorkerThread[5];
		
		for (int i = 0; i < 5; i++){
			workers[i] = new WorkerThread(books[i], i);
			workers[i].start();
		}		
	}
	
	protected void handleViewPrices(ActionEvent ae){
		int index = 0;
		
		for (int i = 0; i < books.length; i++){
			if (current == books[i]){
				index = i;
			}
		}
		
		java.util.Iterator iter = prices[index].iterator();
		
		int size = prices[index].size();
		
		int i = 0;
		
		int[] range = new int[size];
		
		while (iter.hasNext()){
			Integer tmp = (Integer)iter.next();
			range[i++] = tmp.intValue();
		}
		
		xyGraph graph = new xyGraph(range);
		Grapher g = new Grapher(graph);
		g.repaint();
	}

	protected void handleBreakBtn(ActionEvent ae){
		for (int i = 0; i < books.length; i++){
			books[i].obsc.setOrderBookState(OrderBookStateController.BREAK_STATE);
		}
	}

	protected void handleOpeningTradingBtn(ActionEvent ae){
		for (int i = 0; i < books.length; i++){
			books[i].obsc.setOrderBookState(OrderBookStateController.TRADING_STATE);
		}
	}

	protected void handleOrderBookBtn(ActionEvent ae){
		if (current == null) return;
		OutputBookDlg dlg = new OutputBookDlg(main, current.getSecurity().getSymbol() + " Order Book", current);
		dlg.show();
		dlg.repaint();
	}	
	
	protected void handleSelectSecurity(ActionEvent ae){
		if (exchange != null){
			final OrderBook[] tmpBooks = exchange.getOrderBooks();
			final Security[] securities = new Security[tmpBooks.length];
			
			for (int i = 0; i < tmpBooks.length; i++){
				securities[i] = tmpBooks[i].getSecurity();
			}
			
			final JDialog selectDlg = new JDialog(main, "Select a Security to View");
			selectDlg.getContentPane().setLayout(new BorderLayout());
//			selectDlg.getContentPane().add(new JLabel("Select a security"));
			
			final JList list = new JList(securities);
			list.setSelectedIndex(0);
			JScrollPane listPane = new JScrollPane(list);
			selectDlg.getContentPane().add(listPane, BorderLayout.CENTER);
			
			JButton selectBtn = new JButton("Select");
			selectBtn.setMnemonic('s');
			selectBtn.addActionListener(new ActionListener(){
				public void actionPerformed(ActionEvent ae){
					Security sec = (Security)list.getSelectedValue();
					
					for (int i = 0; i < tmpBooks.length; i++){
						if (tmpBooks[i].getSecurity() == sec){
							setCurrentBook(tmpBooks[i]);
						}
					}
					
					selectDlg.hide();
//					selectDlg.destroy();
				}
			});
			
			selectDlg.getContentPane().add(selectBtn, BorderLayout.SOUTH);
			
			selectDlg.setModal(true);
			selectDlg.pack();
			selectDlg.setLocation(300, 300);
			selectDlg.show();
		}
	}
	
	protected void handleOpenExchange(ActionEvent ae){
		exchange = createExchange();
	}	
	
	protected class WorkerThread extends Thread {
		OrderBook ob;
		int index;
		
		public WorkerThread (OrderBook ob, int index){
			this.ob = ob;
			this.index = index;
			this.setDaemon(true);
			prices[index] = new SizedQueue(50);
		}
		
		public void run(){
			while (true){
				try {
					if (ob.obsc.getOrderBookState() instanceof TradingState){
						prices[index].enqueue(new Integer((int)this.ob.getLastPrice()));
					}
					this.sleep(1000);
				}catch(Exception e){
					
				}
			}
		}
	}
	
	/** TO RUN THIS APPLICATION */
	public static void main (String[] args){
		FauxApp faux = new FauxApp();
	}
}