/*
 *    Geotoolkit - An Open Source Java GIS Toolkit
 *    http://www.geotoolkit.org
 *
 *    (C) 2010, Geomatys
 *
 *    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;
 *    version 2.1 of the License.
 *
 *    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.
 */

package org.geotoolkit.filter.binaryspatial;

import com.vividsolutions.jts.geom.Geometry;

import java.util.logging.Level;

import org.geotoolkit.filter.DefaultLiteral;
import org.geotoolkit.geometry.jts.JTS;
import org.apache.sis.referencing.CRS;

import org.opengis.filter.expression.PropertyName;
import org.opengis.geometry.BoundingBox;
import org.opengis.referencing.crs.CoordinateReferenceSystem;
import org.opengis.referencing.operation.MathTransform;
import org.opengis.referencing.operation.TransformException;
import org.opengis.util.FactoryException;
import org.apache.sis.util.logging.Logging;

/**
 * Perform the same work as the BBox expect it evaluate intersection only against
 * the geometry envelope.
 *
 * @author Johann Sorel (Geomatys)
 * @module
 */
public class LooseBBox extends DefaultBBox{

    public LooseBBox(final PropertyName property, final DefaultLiteral<BoundingBox> bbox) {
        super(property,bbox);
    }

    /**
     * {@inheritDoc }
     */
    @Override
    public boolean evaluate(final Object object) {
        Geometry candidate = toGeometry(object, left);

        if(candidate == null){
            return false;
        }

        //we don't know in which crs it is, try to find it
        final CoordinateReferenceSystem candidateCrs = findCRS(object, candidate);

        //if we don't know the crs, we will assume it's the objective crs already
        if(candidateCrs != null){
            //reproject in objective crs if needed
            try {
                final MathTransform trs = CRS.findOperation(candidateCrs, this.crs, null).getMathTransform();
                if(!trs.isIdentity()){
                    candidate = JTS.transform(candidate, trs);
                }
            } catch (TransformException | FactoryException | IllegalArgumentException ex) {
                Logging.getLogger("org.geotoolkit.filter.binaryspatial").log(Level.FINE, null, ex);
                return false;
            }
        }

        final com.vividsolutions.jts.geom.Envelope candidateEnv = candidate.getEnvelopeInternal();
        return boundingEnv.intersects(candidateEnv);
    }

}