package com.ericsson.tic.vi;

import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTextPane;
import javax.swing.JTextField;
import java.awt.BorderLayout;
import java.awt.Dimension;
import java.awt.Color;
import javax.swing.text.StyleConstants;
import javax.swing.text.StyledDocument;
import javax.swing.text.StyleContext;
import javax.swing.text.Style;
import javax.swing.text.BadLocationException;
import java.awt.event.ActionListener;
import java.awt.event.ActionEvent;

/**
 * This console panel can be used both for feedback and for issuing commands
 * directly thru the command line interface.
 * This functionality is supplied "as is".
 * 
 * 
 * @author	Sami Matilainen
 * @version 1.0 (2008-12-04)
 */
public class ConsolePanel extends JPanel implements ActionListener {
	
	/** A scrollpane. */
	private JScrollPane scrollPane;
	
	/** A text pane. */
	private JTextPane textPane;
	
	/** Used for font styles. */
	private Style style;
	
	/** The textfield to which it is possible to write messages.
	 *  Should not be called directly.
	 */
	public JTextField textField;
	
	/** The window id this console belongs to. */
	public int wid;
	
	/**
	 * Creates a Console.
	 *
	 * @param wid The window id this console belongs to.
	 */
	public ConsolePanel(int wid) {
		
		this.wid = wid;
		
		this.setLayout(new BorderLayout());
		
		this.setPreferredSize(new Dimension(100, 100));
		this.setMinimumSize(new Dimension(100, 100));
		this.setMaximumSize(new Dimension(100, 100));
		
		textPane = new JTextPane();
		scrollPane = new JScrollPane(textPane);
		textField = new JTextField();
		textField.addActionListener(this);
		textField.setActionCommand("console");
		
		textPane.setEditable(false);
		textPane.setBackground(Color.black);
		
		this.add(scrollPane, BorderLayout.CENTER);
		this.add(textField, BorderLayout.SOUTH);
		
		textField.setFocusable(true);
		
	}
	
	/**
	 * Print a message on the textfield.
	 * 
	 * @param message		The message to be written to the console.
	 * @param italic		If true the outputt will be with italic text.
	 * @param bold			If true the message will be outputted with bold text.
	 * @param foreground	Color of the text itself.
	 * @param background	Color of the background.
	 */
	private void println(	String message,
							boolean italic,
							boolean bold,
							Color foreground,
							Color background) {
		
		StyledDocument doc = textPane.getStyledDocument();
		Style def = StyleContext.getDefaultStyleContext().getStyle(
							StyleContext.DEFAULT_STYLE );
		Style style = doc.addStyle("style", def);
		
		StyleConstants.setItalic(style, italic);
		StyleConstants.setBold(style, bold);
		StyleConstants.setForeground(style, foreground);
		StyleConstants.setBackground(style, background);
		StyleConstants.setFontFamily(style, "Monospaced");
		
		try {
			doc.insertString(doc.getLength(), message + "\n", style);
		} catch (BadLocationException e) {
			e.printStackTrace();
		}
		
		scrollPane.getVerticalScrollBar().setValue(
		scrollPane.getVerticalScrollBar().getMaximum());
		
	}
	
	/*
	 * <p>Here follows specialized methods for writing with various styles to
	 * the console. The styles are set in the settings.
	 * Note: not fully implemented
	 * 
	 * <p><b>dbsent, dbrec</b>		database queries and responses
	 * <p><b>udpsent, udprec</b>	mesages sent and recieved over udpsockets
	 * <p><b>user</b>				accepted user input from the command line
	 * <p><b>warn</b>				warnings
	 * <p><b>err</b>				errors
	 * <p><b>ex</b>					exceptions
	 * <p><b>d</b>					debug (channel used for development)
	 * <p><b>alert</b>				change alerts
	 * <p><b>chat</b>				chat messages from other ynodes :)
	 * <p><b>def</b>				default or generic output, everything else.
	 */
	
	/**
	 * Print in the dbrec channel.
	 * 
	 * <p><b>dbsent, dbrec</b>		database queries and responses
	 *
	 * @param message	The message to be written to the console.
	 */
	public void dbrec(String message) {
		
		if(true) {
			println(message, false, true, Color.ORANGE, Color.black);
		}
		
	}
	
	/**
	 * Print in the dbrec channel.
	 * 
	 * <p><b>udpsent, udprec</b>	mesages sent and recieved over udpsockets
	 *
	 * @param message	The message to be written to the console.
	 */
	public void udpsent(String message) {
		
		if(true) {
			println(message, false, true, Color.YELLOW, Color.black);
		}
		
	}
	
	/**
	 * Print in the debug channel.
	 * 
	 * <p><b>d</b>					debug (channel used for development)
	 * 
	 * @param message	The message to be written to the console.
	 */
	public void d(String message) {
		
		if(true) {
			println(message, false, true, Color.green, Color.black);
		}
		
	}
	
	/**
	 * Print in the chat channel.
	 * 
	 * <p><b>chat</b>				chat messages from other ynodes :)
	 *
	 * @param message	The message to be written to the console.
	 */
	public void chat(String message) {
		
		if(true) {
			println(message, false, true, Color.pink, Color.black);
		}
		
	}
	
	/**
	 * Print in the user channel.
	 * 
	 * <p><b>user</b>				accepted user input from the command line
	 * 
	 * @param message	The message to be written to the console.
	 */
	public void user(String message) {
		
		if(true) {
			println(message, false, false, Color.white, Color.black);
		}
		
	}
	
	/**
	 * Print in the default channel.
	 * 
	 * <p><b>def</b>				default or generic output, everything else.
	 * 
	 * @param message	The message to be written to the console.
	 */
	public void def(String message) {
		
		if(true) {
			println(message, false, false, Color.gray, Color.black);
		}
		
	}
	
	/**
	 * Print help Title
	 *
	 * @param message	The message to be written to the console.
	 */
	public void helpTitle(String message) {
		
		if(true) {
			println(message, false, true, Color.pink, Color.black);
		}
		
	}
	
	/**
	 * Print help text
	 *
	 * @param message	The message to be written to the console.
	 */
	public void help(String message) {
		
		if(true) {
			println(message, false, false, Color.white, Color.black);
		}
		
	}
	
	/**
	 * Called when the user enters a command and hits enter.
	 *
	 * @param e The ActionEvent which triggered this event.
	 */
	public void actionPerformed(ActionEvent e) {
		
		if ("console".equals(e.getActionCommand())) {
			
			if (textField.getText() == null || textField.getText().equals("")) {
				def("");
			} else {				
				VI.consoleInputBuffer.deposit(textField.getText().toCharArray());
				textField.setText("");
			}
			VI.windowList.getFirst().frame.requestFocusInWindow();
			VI.focusInView = true;
		
		}
		
	}
}