/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package view;

import java.awt.GridLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.util.Observable;
import java.util.Observer;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JTextArea;
import javax.swing.JTextField;

import auction.Auction;
import auction.Bid;
import strategies.BatchPrice;
import strategies.FlatPrice;
import strategies.PriceStrategy;

/**
 *
 * @author cirstea
 */
public class Auctioneer {

	private JFrame frame = new JFrame("Auctioneer");
	private JButton stopButton = new JButton("Stop");
	private JTextArea articleName = new JTextArea("Article: ");
	private JLabel articlePrice = new JLabel("Price: ");
	private JLabel lastBid = new JLabel("Last bid: ");
	private JLabel lastBidder = new JLabel(" Winner: ");
	private JButton flatButton = new JButton("Flat");
	private JButton batchButton = new JButton("Batch");

	private Auction auction;

	public Auctioneer(Auction auction) {
		if (auction.getNumberComponents() > 0) {
			this.auction = auction;

			this.auction.addPropertyChangeListener("close", e -> {
				stopButton.setEnabled(false);
				articleName.setText("  Article: " + auction.getArticleDescription());
				lastBid.setVisible(true);
				lastBidder.setVisible(true);
				frame.getContentPane().repaint();
			});
			this.auction.addPropertyChangeListener("bid", e -> {
				Bid newBid = (Bid) e.getNewValue();
				lastBid.setText("  Last bid: " + Math.max(newBid.getLastBid(), auction.getPrice()) + "");
				lastBid.setVisible(true);
				lastBidder.setText("  Winner: " + newBid.getLastBidder());
				frame.getContentPane().repaint();
			});
			this.auction.addPropertyChangeListener("strategy", e -> {
				articlePrice.setText("  Price: " + this.auction.getPrice());
				frame.getContentPane().repaint();
			});
			buildFrame();
		}
	}

	public void buildFrame() {
		frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

		JPanel contentPane = (JPanel) frame.getContentPane();

		articleName.setText("  Article: " + auction.getArticleDescription());
		contentPane.add(articleName);
		articlePrice.setText("  Price: " + auction.getPrice());
		contentPane.add(articlePrice);
		lastBid.setText("  Last bid: " + auction.getLastBid());
		lastBid.setVisible(false); // at the beginning, no bid
		contentPane.add(lastBid);
		lastBidder.setText("  Winner: " + auction.getLastBidder());
		lastBidder.setVisible(false);
		contentPane.add(lastBidder);
		stopButton.setEnabled(true);
		stopButton.addActionListener(new StopListener());
		contentPane.add(stopButton);

		JPanel strategyPane = new JPanel();
		flatButton.addActionListener(new FlatListener());
		batchButton.addActionListener(new BatchListener());
		strategyPane.add(batchButton);
		strategyPane.add(flatButton);
		contentPane.add(strategyPane);

		contentPane.setLayout(new GridLayout(6, 1));

		frame.pack();
		frame.setVisible(true);
	}

	private class StopListener implements ActionListener {
		@Override
		public void actionPerformed(ActionEvent ae) {
			auction.close();
		}
	}

	private class FlatListener implements ActionListener {
		@Override
		public void actionPerformed(ActionEvent ae) {
			auction.setStrategy(new FlatPrice());
		}
	}

	private class BatchListener implements ActionListener {
		@Override
		public void actionPerformed(ActionEvent ae) {
			auction.setStrategy(new BatchPrice());
		}
	}
}