/*******************************************************************************
 * Copyright (c) 2007- VTT Technical Research Centre of Finland.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *     VTT Technical Research Centre of Finland - initial API and implementation
 *******************************************************************************/
package org.simantics.proconf.g3d.shapeeditor.actions;

import java.io.File;
import java.io.FilenameFilter;
import java.util.Stack;

import org.eclipse.jface.action.Action;
import org.eclipse.swt.SWT;
import org.eclipse.swt.widgets.DirectoryDialog;
import org.simantics.proconf.g3d.base.ThreeDimensionalEditorBase;
import org.simantics.proconf.g3d.occ.geometry.OccTriangulator;

import com.jme.bounding.BoundingBox;
import com.jme.renderer.ColorRGBA;
import com.jme.scene.Geometry;
import com.jme.scene.state.MaterialState;


public class LoadFolderAction extends Action {
	private ThreeDimensionalEditorBase editor;
	
	public LoadFolderAction(ThreeDimensionalEditorBase editor) {
		super("Load folder");
		this.editor = editor;
		
	}
	
	public void run() {
        
      DirectoryDialog loadDialog = new DirectoryDialog(editor.getRenderingComposite().getShell(), SWT.OPEN);
      loadDialog.setText("Select directory");

      String directory = loadDialog.open();
      if (directory != null) {
          File file = new File(directory);
          if (!file.isDirectory())
              return;
          Stack<File> directories = new Stack<File>();
          directories.push(file);
          boolean recursive = true;
          while (!directories.empty()) {
              File dir = directories.pop();

              String[] files = dir.list(new PLYFilter());
              for (String filename : files) {
                  Geometry g = OccTriangulator.getGeometryFromFile(dir.getAbsolutePath() + "/" + filename)[0];
                MaterialState ms = editor.getRenderingComponent().getDisplaySystem().getRenderer().createMaterialState();
                ms.setAmbient(new ColorRGBA(0.f,0.f,0.f,0.f));
                ms.setEmissive(new ColorRGBA(0.f,0.f,0.f,0.f));
                ms.setShininess(128.f);
                ms.setDiffuse(new ColorRGBA(0.8f,0.8f,0.8f,0.f));
                ms.setSpecular(new ColorRGBA(1.f,1.f,1.f,0.f));
                ms.setMaterialFace(MaterialState.MF_FRONT_AND_BACK);
                if (g.getColorBuffer(0) != null) {
                	ms.setColorMaterial(MaterialState.CM_DIFFUSE);
                }
                g.setModelBound(new BoundingBox());
                g.updateModelBound();
                g.setRenderState(ms);
                editor.getRenderingComponent().getShadowRoot().attachChild(g);
                g.updateWorldBound();
                g.lock();
               
              }
              if (recursive) {
                  File[] newDirs = dir.listFiles(new DirectoryFilter());
                  for (File d : newDirs)
                      directories.push(d);
              }
          }
          
      }


    }
	
	 protected class DirectoryFilter implements FilenameFilter {
	        public boolean accept(File dir, String name) {
	            File file = new File(dir.getAbsolutePath() + "/" + name);
	            return file.isDirectory();
	        }
	    }

	    protected class PLYFilter implements FilenameFilter {
	        public boolean accept(File dir, String name) {
	            return (name.endsWith("ply"));
	        }
	    }

}