/***********************************************************************

 * mt4j Copyright (c) 2008 - 2009 C.Ruff, Fraunhofer-Gesellschaft All rights reserved.

 *  

 *   This program is free software: you can redistribute it and/or modify

 *   it under the terms of the GNU General Public License as published by

 *   the Free Software Foundation, either version 3 of the License, or

 *   (at your option) any later version.

 *

 *   This program 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 General Public License for more details.

 *

 *   You should have received a copy of the GNU General Public License

 *   along with this program.  If not, see <http://www.gnu.org/licenses/>.

 *

 ***********************************************************************/

package org.mt4j.util.xml.svg;



import java.io.File;



//TODO IMPLEMENT!



import org.mt4j.components.MTComponent;



import processing.core.PApplet;



import com.whirlycott.cache.Cache;

import com.whirlycott.cache.CacheException;

import com.whirlycott.cache.CacheManager;



/**

 * The Class SVGCache.

 */

public class SVGCache {

	

	/** The svg cache. */

	private static SVGCache svgCache;

	

	/** The cache. */

	private Cache cache;



	/**

	 * Gets the single instance of SVGCache.

	 * 

	 * @return single instance of SVGCache

	 */

	public static SVGCache getInstance(){

		if (svgCache == null){

			svgCache = new SVGCache();

			return svgCache;

		}else{

			return svgCache;

		}

	}

	

	/**

	 * Instantiates a new sVG cache.

	 */

	private SVGCache(){

		try {

			cache = CacheManager.getInstance().getCache();

		} catch (CacheException e) {

			e.printStackTrace();

		}

		

//			Shut down the cache manager

//			CacheManager.getInstance().shutdown();

	}

	

	

	//TODO wenn in cache, ganze svg gruppenhierarchie clonen 

	// und clon zurückgeben

	/**

	 * Load svg file.

	 * 

	 * @param fileName the file name

	 * @param pa the pa

	 * 

	 * @return the mT base component

	 */

	public MTComponent loadSVGFile(String fileName, PApplet pa){

		MTComponent returnComponent = null;

		

		//Get the object back out of the cache

		returnComponent = (MTComponent) cache.retrieve(fileName);

		

		if (returnComponent == null){

			System.out.println("Found no cached obj for filepath: " + fileName);

			if (new File(fileName).exists()){

//				BatikSvgParser batikSvgParser = new BatikSvgParser(pa);

//				SVGDocument svgDoc = batikSvgParser.parseSvg(fileName);

//				MTBaseComponent[] comps = batikSvgParser.getCreatedSvgComponents(svgDoc);

//				MTBaseComponent group = new MTBaseComponent(pa);

//				//Wrap the svg in a group

//				group.setName("svg: " + fileName);

//				group.addChildren(comps);

				

				SVGLoader batikSvgParser = new SVGLoader(pa);

				MTComponent svg = batikSvgParser.loadSvg(fileName);

				

				returnComponent = svg;

				

				//TODO store copy? because sonst wird matrix etc verändert wenn damit gearbeitet wurde

				cache.store(fileName, svg);

			}else{

				System.out.println("File doesent exist! aborting..." + fileName);

			}

		}else{

			System.out.println("Found cached svg.");

		}

		

		return returnComponent;

	}

	



	//TODO für alle componenten clone implementieren?

	/**

	 * Copy svg.

	 * 

	 * @param original the original

	 * 

	 * @return the mT base component

	 */

	private MTComponent copySvg(MTComponent original){

		

		return null;

	}

	

	

	/**

	 * Copy svg recursive.

	 * 

	 * @param current the current

	 */

	private void copySvgRecursive(MTComponent current){

		

		

		

	}

	

	

	



}