/* jCAE stand for Java Computer Aided Engineering. Features are : Small CAD
   modeler, Finite element mesher, Plugin architecture.

    Copyright (C) 2005, by EADS CRC
    Copyright (C) 2007,2008, by EADS France

    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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA */


package org.jcae.mesh;

import org.jcae.mesh.oemm.*;
import org.jcae.mesh.cad.CADShape;
import org.jcae.mesh.cad.CADShapeFactory;
import java.util.logging.Logger;
import java.io.File;

/**
 * This class converts a triangle soup into an OEMM.
 */
public class MeshOEMMIndex
{
	private static final Logger logger=Logger.getLogger(MeshOEMMIndex.class.getName());

	private static void check(String brepfilename, int lmax, int triangles_max, String soupDir, String outDir)
	{
		logger.info("Reading "+brepfilename);
		final OEMM oemm = new OEMM(lmax);
		if(brepfilename!=null)
		{
			CADShapeFactory factory = CADShapeFactory.getFactory();
			CADShape shape = factory.newShape(brepfilename);
			double [] bbox = shape.boundingBox();		
			oemm.setBoundingBox(bbox);
		}
		String soupFile = soupDir+File.separator+"soup";
		if (!RawStorage.countTriangles(oemm, soupFile))
		{
			// Bounding box was invalid and has been fixed
			// in RawStorage.countTriangles(), we need to
			// count triangles against the new OEMM.
			logger.info("Invalid bounding box has been detected");
			if (!RawStorage.countTriangles(oemm, soupFile))
				throw new RuntimeException("Fatal error... aborting");
		}
		Aggregate.compute(oemm, triangles_max);
		RawStorage.dispatch(oemm, soupFile, "dispatched", "dispatched.data");
		RawStorage.indexOEMM("dispatched", outDir);
		logger.info("End processing");
	}
	
	/**
	 * Main method, reads 4 arguments and calls mesh() method
	 * @param args  an array of String, soup directory, OEMM output directory, max level and maximal numbre of triangles by octant.
	 */
	public static void main(String args[])
	{
		if (args.length < 4)
		{
			System.out.println("Usage: MeshOEMMIndex soupDir outDir level_max tri_max [brep]");
			System.exit(0);
		}
		String soupDir = args[0];
		String outDir = args[1];
		Integer lmax = Integer.valueOf(args[2]);
		Integer triangles_max = Integer.valueOf(args[3]);
		
		String filename=null;
		if(args.length > 4)
			filename=args[4];

		check(filename, lmax.intValue(), triangles_max.intValue(), soupDir, outDir);
	}
}