/*
 * Moonlight|3D
 * Copyright (C) 2005 The Moonlight|3D team
 * 
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 * 
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 * 
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
 *
 * Created on Jan 5, 2005
 */

package ml;
/**
 * \package ml
 *
 * This package contains the main class for Moonlight|3D.
 */

import com.trolltech.qt.gui.QApplication;

import ml.core.State;
import ml.core.exceptions.Exception;
import ml.core.scripts.Interpreter;

/**
 * This is the batch application main class for Moonlight|3D.
 * This class is used when Moonlight|3D is started in battch
 * mode. This main class will take a script or a series of
 * scripts as an argument and will try to execute them in 
 * order.
 * 
 * @author gregor
 */
public class MLBatch {

    /**
     * The main constructor for the application
     * 
     * @throws Exception if something went terribly wrong
     */
    public MLBatch(String[] args) throws Exception
    {
    	/*
    	 * args[] contains the full path to Moonlight|3D in the filesystem.
    	 * This parameter is only passed to main because there is no way
    	 * to determine this in Java and should be treated as internal.
    	 * Therefore it is removed from the command line here and treated
    	 * separately.
    	 */
    	String[] strippedArgs=new String[args.length-1];
    	String installDir=args[0];
    	if(args.length>1) {
    		System.arraycopy(args, 1, strippedArgs, 0, args.length-1);
    	}
    	args=strippedArgs;
    	/*
    	 * On Windows, quotation marks around the installation directory
    	 * argument are neccessary to protect white spaces in it, but
    	 * the Windows shell does not remove them before passing the
    	 * argument to the program. Instead, we have to work around that
    	 * here.
    	 */
    	if(installDir.charAt(0)=='"') {
    		installDir=installDir.substring(1,installDir.length()-2);
    	}
    	
    	QApplication qApp=new QApplication(args);
    	
        State state=ml.core.State.getInstance();
        state.setBatchMode(true);
        state.setInstallationDirectory(installDir);
        state.setCommandLineArguments(args);
        
        state.logger().info("Moonlight|3D " + State.Version.asString() + " starting in batch mode");
        
        state.getPreferencesManager().loadPreferences();
        state.getPluginManager().loadPlugins();
        state.getPreferencesManager().applyLoadedPreferences();
        state.getScriptManager().runStartupScripts();
        state.getDocumentManager().createNewMainDocument("MoonlightScene");
        
        if(args.length>0) {
        	String script=args[0];
        	try {
        		state.logger().info("running script " + script);
        		Interpreter interpreter=state.getScriptManager().createInterpreterForFile(script);
        		interpreter.runFile(script);
        	} catch(Exception e) {
        		System.err.print(e.getFullText());        		
        	}
        } else {
        	state.logger().warning("no script given on command line: exiting without any actions performed");
        }
        
        state.getPluginManager().unloadPlugins();
        state.getPreferencesManager().updatePreferenceFiles();
    }

    /**
     * The main entry point for Moonlight|3D in batch mode
     * 
     * @param args command line arguments
     */
    public static void main(String[] args) {
        try {
            MLBatch app=new MLBatch(args);
        } catch(ml.core.exceptions.Exception e) {
            System.err.print(e.getFullText());
        }
    }
}