package us.deans.zinctest;

import us.deans.zinc.*;
import javax.swing.ImageIcon;
import javax.swing.JFrame;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.JMenuBar;
import javax.swing.JMenu;
import javax.swing.JMenuItem; 
import javax.swing.JOptionPane;

import java.awt.event.*;
import java.awt.*;

import org.apache.log4j.Logger;

import us.deans.panther.ppView;
import us.deans.panther.ppCustomException;
import us.deans.panther.ppExceptionChannel;

/** Swing-based user interface */

public class ZnSwingView extends ppView {

	private ZnModel m_model;
	private JFrame frame;
	private JTable table;
	private Logger logger;

	
	public ZnSwingView(ZnModel model){
		
		m_model = model;
		logger = Logger.getLogger("ZincLogger");
		ZnMessageHandler msgHandler = new ZnMessageHandler(this);							// create a message handler
		m_model.getMessenger().addObserver(msgHandler);										// register the model's messenger
		
		String iconFile = System.getProperty("user.dir")+"\\zinc.jpg";
	//	logger.debug("Icon located at: " + iconFile + "\n");

		//main frame
		frame = new JFrame("Hunting for Jobs");
		frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);								// exits application when window is closed
		frame.setIconImage(new ImageIcon(iconFile).getImage());		
		Dimension screenSize = Toolkit.getDefaultToolkit().getScreenSize();					// set frame dimensions via setBounds
		frame.setBounds(50, 50, screenSize.width-50*2,screenSize.height-50*2);				
	//	frame.setSize(1600, 900);															// set frame dimensions via setSize

		// menu system
		JMenuBar menuBar = new JMenuBar();
		JMenu fileMenu = new JMenu("Program");
		JMenu viewMenu = new JMenu("View");
		
		JMenuItem miDisplayRSS = new JMenuItem("Display RSS");
		JMenuItem miImportRSS = new JMenuItem("Import RSS");
		JMenuItem miProcessRSS = new JMenuItem("Process RSS");
		
		JMenuItem miImportDB = new JMenuItem("Import DB");
		JMenuItem miExportDB = new JMenuItem("Export DB");
		JMenuItem miShowSummary = new JMenuItem("Generate Summary");
		JMenuItem miSortSummary = new JMenuItem("Sort Summary By Demand");
		JMenuItem miExtractTerms = new JMenuItem("Extract Terms");
		JMenuItem miLoadTable = new JMenuItem("Load Table (Refresh)");
		JMenuItem miClearTable = new JMenuItem("Clear Table");
		JMenuItem miExit = new JMenuItem("Exit");
		JMenuItem miTest = new JMenuItem("Test");
		
		fileMenu.add(miImportRSS);
		fileMenu.add(miProcessRSS);
		fileMenu.add(miDisplayRSS);
		
		fileMenu.add(miImportDB);
		fileMenu.add(miExportDB);
		fileMenu.add(miExtractTerms);
		fileMenu.add(miTest);
		fileMenu.add(miExit);
		menuBar.add(fileMenu);
		
		viewMenu.add(miShowSummary);
		viewMenu.add(miSortSummary);
		viewMenu.add(miLoadTable);
		viewMenu.add(miClearTable);
		menuBar.add(viewMenu);
		
		frame.setJMenuBar(menuBar);
		
		// Import RSS
		miDisplayRSS.addActionListener(new ActionListener(){
			public void actionPerformed(ActionEvent a){
				displayRSSData(3);
			}
		});
		
		miImportRSS.addActionListener(new ActionListener(){
			public void actionPerformed(ActionEvent a){
				displayRSSData(1);
			}
		});
		miProcessRSS.addActionListener(new ActionListener(){
			public void actionPerformed(ActionEvent a){
				displayRSSData(2);
			}
		});
		
		// Import DB
		miImportDB.addActionListener(new ActionListener(){
			public void actionPerformed(ActionEvent a){
				displayDBData();
			}
		});
		
		// Export DB
		miExportDB.addActionListener(new ActionListener(){
			public void actionPerformed(ActionEvent a){
				exportDBData();
			}
		});
		
		// Show Summary
		miShowSummary.addActionListener(new ActionListener(){
			public void actionPerformed(ActionEvent a){
				showSummary(1);
			}
		});
		
		// Sort Summary
		miSortSummary.addActionListener(new ActionListener(){
			public void actionPerformed(ActionEvent a){
				showSortedSummary(1);	
			}
		});		
		
		// Extract Terms
		miExtractTerms.addActionListener(new ActionListener(){
			public void actionPerformed(ActionEvent a){
				m_model.extractTerms();
			}
		});
		

		// Clear Swing Table
		miClearTable.addActionListener(new ActionListener(){
			public void actionPerformed(ActionEvent a){
				clearTable(true);
			}
		});
		
		// Load Swing Table
		miLoadTable.addActionListener(new ActionListener(){
			public void actionPerformed(ActionEvent a){
				displayModel();
			}
		});
		
		// Test
		miTest.addActionListener(new ActionListener(){
			public void actionPerformed(ActionEvent a){
				JOptionPane.showMessageDialog(frame, "Nothing Set up to Test", "Zinc Message", JOptionPane.INFORMATION_MESSAGE);
			}
		});
		
		// Exit
		miExit.addActionListener(new ActionListener(){
			public void actionPerformed(ActionEvent a) {
				System.exit(0);
			}
		});
		
		
		table = new JTable();
		table.setModel(new ZnTableModel_001(new ZnJobList()));
		JScrollPane jsPane = new JScrollPane(table);
		frame.getContentPane().add(jsPane);
		frame.setVisible(true);	

		logger.debug("view is loaded...");

		
	}
	
	public void displaySummary(){
		
		clearTable(false);
		ZnDemandList demandList = m_model.getDemandList();
		logger.debug("demand records in current model = " + demandList.size()+ "\n");
		table.setModel(new ZnTableModel_002(demandList));
		
		JScrollPane jsPane = new JScrollPane(table);
		frame.getContentPane().add(jsPane);
		frame.setVisible(true);	
		
	}
	
	public void displayModel(){
		
		clearTable(false);
		ZnJobList jobList = m_model.getRssData();
		logger.debug("records in current model = " + jobList.size()+ "\n");
		table.setModel(new ZnTableModel_001(jobList));
		
		JScrollPane jsPane = new JScrollPane(table);
		frame.getContentPane().add(jsPane);
		frame.setVisible(true);			
		
	}
	
	public void clearTable(boolean opt){
		
		frame.setVisible(false);
		frame.getContentPane().removeAll();
		if (opt) {
			frame.setVisible(true);
		}
	}
	
	public void displayRSSData(int opt){
		
		try {
			switch (opt){
			case 1: 
				m_model.importContentFromRSS(); 
				break;
			case 2:
				m_model.processJobList();
				break;
			case 3:
				m_model.importContentFromRSS();
				m_model.processJobList();
				break;
			}
		}
		catch(ZnNoDataException e){
			JOptionPane.showMessageDialog(frame, e.getMessage(), "Zinc Error", JOptionPane.ERROR_MESSAGE);
			logger.debug(e.getMessage());
		}
		catch(ppExceptionChannel e){
			JOptionPane.showMessageDialog(frame, e.getMessage(), "Zinc Error", JOptionPane.ERROR_MESSAGE);
			logger.error(e.getMessage());
		}
		
		displayModel();
	}
	
	public void displayDBData(){
		
		try {
			m_model.importContentFromDB();
			displayModel();
		}
		catch(ppExceptionChannel e){
			JOptionPane.showMessageDialog(frame, e.getMessage(), "Zinc Error", JOptionPane.ERROR_MESSAGE);
		}
	}
	
	public void exportDBData(){
		
		try {
			m_model.exportContentToDB();
		}
		catch(ppExceptionChannel e){
			JOptionPane.showMessageDialog(frame, e.getMessage(), "Zinc Error", JOptionPane.ERROR_MESSAGE);
		}
		
	}
	
	public void showSummary(int opt){
		
		try{
			m_model.generateSummaryList(1);
			displaySummary();
		}
		catch(ppCustomException e){
			JOptionPane.showMessageDialog(frame, e.getMessage(), "Zinc Message", JOptionPane.INFORMATION_MESSAGE);
		}
		catch(ppExceptionChannel e){
			JOptionPane.showMessageDialog(frame, e.getMessage(), "Zinc Message", JOptionPane.ERROR_MESSAGE);
		}
		
	}
	
	public void showSortedSummary(int opt){
		
		try{
			m_model.sortSummaryList();
			displaySummary();
		}
		catch(ppCustomException e){
			JOptionPane.showMessageDialog(frame, e.getMessage(), "Zinc Message", JOptionPane.INFORMATION_MESSAGE);
		}
		catch(ppExceptionChannel e){
			JOptionPane.showMessageDialog(frame, e.getMessage(), "Zinc Message", JOptionPane.ERROR_MESSAGE);
		}
		
	}	
	
	public void displayMessage(ZnMessage msgObject){
		
		final int DEBUG = 1;
		final int INFO = 2;
		final int WARN = 3;
		
		switch (msgObject.level){
			case DEBUG:
				logger.debug(msgObject.message); break;
			case INFO:
				logger.info(msgObject.message);	break;
			case WARN:
				JOptionPane.showMessageDialog(frame, msgObject.message, "Zinc Message", JOptionPane.WARNING_MESSAGE);
				break;
		}

	}

	
}