package jas2.swingstudio;

import java.awt.*;
import java.awt.event.*;
import java.io.*;
import java.util.*;
import javax.swing.*;
import javax.swing.text.*;
import jas2.util.*;
import jas2.util.xmlmenus.*;

public class JASConsoleTextArea extends JTextArea implements HasCommandProcessor {
	public JASConsoleTextArea(JASConsoleScrollPane sp) {
		super();
		theScrollPane = sp;
		loggingOn = false;
		logFileOpened = false;
		commandProcessor = new JASConsoleTextAreaCommandProcessor();
		theJASConsoleTabbedPanePopupMenu =
			JavaAnalysisStudio.getApp().getXMLMenuBuilder().getPopupMenu("consolePopupMenu");
		enableEvents(AWTEvent.MOUSE_EVENT_MASK);
	}
	public CommandProcessor getCommandProcessor() 
	{
		return commandProcessor;
	}
	protected JASConsoleTextArea getJASConsoleTextArea() 
	{
		return this;
	}
	protected void processMouseEvent(final MouseEvent e) {
		super.processMouseEvent(e);
		if (e.isPopupTrigger()) {
			commandProcessor.forceSetChanged();
			theJASConsoleTabbedPanePopupMenu.show(e.getComponent(), e.getX(), e.getY());
		}
	}
	public boolean isLogFileOpened() {
		return logFileOpened;
	}
	public void setLogFileOpened(boolean newState) {
		logFileOpened = newState;
	}
	public boolean isLoggingOn() {
		return loggingOn;
	}
	public void setLoggingOn(boolean newState) {
		loggingOn = newState;
	}
	public void forceCommandProcessorSetChanged() {
		commandProcessor.forceSetChanged();
	}
	protected String lineSeparator = (String)System.getProperty("line.separator");
	private boolean logFileOpened;
	private boolean loggingOn;
	private JPopupMenu theJASConsoleTabbedPanePopupMenu;
	public FileWriter getLogWriter() {
		return logOutput;
	}
	private FileWriter logOutput;
	private JASConsoleTextAreaCommandProcessor commandProcessor;
	private JASConsoleScrollPane theScrollPane;
	private class JASConsoleTextAreaCommandProcessor extends JASCommandProcessor {
		public JASConsoleTextAreaCommandProcessor() {
			super();
		}
		public void forceSetChanged()
		{
			setChanged();
		}
		public void onCopyConsoleSelection() {
			copy();
		}
		public void enableCopyConsoleSelection(JASState state) {
			state.setEnabled(getJASConsoleTextArea().getSelectedText() != null);
		}
		public void onClear() {
			JASConsoleDocumentUtilities.clearDoc(getDocument());
		}
		public void enableClear(JASState state) {
			state.setEnabled(getDocument().getLength() > 0);
		}
		public void onSelectAll() {
			selectAll();
		}
		public void enableSelectAll(JASState state) {
			state.setEnabled(getDocument().getLength() > 0);
		}
		public void onSetBufferSize() {
		}
		public void enableSetBufferSize(JASState state) {
			state.setEnabled(false);
			//disable this until the buffer size is in lines
		}
		public void onCloseTab() {
			if (isLoggingOn()) {
				setLogFileOpened(false);
				setLoggingOn(false);
			}
			theScrollPane.removeTab();
		}
		public void enableCloseTab(JASState state) {
			//Every text pane can be closed.
			state.setEnabled(true);
		}
		public void onOpenLogFile() {
			JFileChooser chooser = new JFileChooser(
				JavaAnalysisStudio.getApp().getUserProperties().getString(
					"LastProgramPath", System.getProperty("user.home")));
			chooser.setDialogTitle("Open or Create Log File...");
			int returnVal = chooser.showOpenDialog(JASConsoleTextArea.this);
			if(returnVal == JFileChooser.APPROVE_OPTION) {
				final File f = chooser.getSelectedFile();
				boolean failed = false;
				if (f.exists()) {
					if (!f.canWrite()) {
						JavaAnalysisStudio.getApp().error("Cannot write to the file " + f);
						failed = true;
					} else {
						if (!f.delete()) {
							JavaAnalysisStudio.getApp().error("Could not overwrite the file " + f);
							failed = true;
						}
					}
				}
				if (!failed) {
					try {
						logOutput = new FileWriter(f);
						logOutput.write("Log file created on " + new Date() + lineSeparator);
						logOutput.flush();
						setLogFileOpened(true);
					} catch (IOException eh) {
						JavaAnalysisStudio.getApp().error("Couldn't write to " + f.getName());
					}
				}
			}
			if (!isLoggingOn()) {
				onEnableLogging(true);
			}
		}
		public void enableOpenLogFile(JASState state) {
			state.setEnabled(!isLogFileOpened());
		}
		public void onEnableLogging(boolean b) {
			setLoggingOn(b);
			setChanged();
		}
		public void enableEnableLogging(JASCheckboxState state) {
			state.setCheckbox(isLoggingOn());
			state.setEnabled(isLogFileOpened());
		}
		public void onCloseLogFile() {
			try {
				logOutput.write("Log file closed on " + new Date() + lineSeparator);
				logOutput.flush();
				logOutput.close();
			} catch (IOException eek) {
			}
			setLogFileOpened(false);
			setLoggingOn(false);
		}
		public void enableCloseLogFile(JASState state) {
			state.setEnabled(isLogFileOpened());
		}
	}
}