package de.ugoe.cs.quest.ui.swt;

import java.util.logging.Level;

import org.eclipse.swt.SWT;
import org.eclipse.swt.custom.StyleRange;
import org.eclipse.swt.custom.StyledText;

import de.ugoe.cs.util.StringTools;
import de.ugoe.cs.util.console.Console;
import de.ugoe.cs.util.console.listener.ICommandListener;
import de.ugoe.cs.util.console.listener.IErrorListener;
import de.ugoe.cs.util.console.listener.IOutputListener;
import de.ugoe.cs.util.console.listener.ITraceListener;

public class SWTConsole implements IOutputListener, IErrorListener, ITraceListener,
    ICommandListener
{

    private StyledText output;
    
    private Level traceLevel;

    public SWTConsole(StyledText styledText, Level traceLevel) {
        Console.getInstance().registerOutputListener(this);
        Console.getInstance().registerErrorListener(this);
        Console.getInstance().registerTraceListener(this);
        Console.getInstance().registerCommandListener(this);
        this.output = styledText;
        this.traceLevel = traceLevel;
    }

    @Override
    public void outputMsg(String newMessage) {
        output.append(newMessage);
    }

    @Override
    public void errorMsg(String errMessage) {
        appendColored(errMessage, SWT.COLOR_RED);
    }

    @Override
    public void traceMsg(String traceMessage, Level level) {
        if( level.intValue()>=traceLevel.intValue()) {
            appendColored("[" + level.toString() + "] " + traceMessage, SWT.COLOR_BLUE);
        }
    }

    @Override
    public void commandNotification(String command) {
        output.append("> " + command + StringTools.ENDLINE);
    }

    private void appendColored(String str, int id) {
        StyleRange styleRange = new StyleRange();
        styleRange.start = output.getText().length();
        styleRange.length = str.length();
        styleRange.foreground = output.getDisplay().getSystemColor(id);
        output.append(str);
        output.setStyleRange(styleRange);
    }
}
