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/**

 * gvSIG. Desktop Geographic Information System.

 *

 * Copyright (C) 2007-2013 gvSIG Association.

 *

 * 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, write to the Free Software

 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,

 * MA  02110-1301, USA.

 *

 * For any additional information, do not hesitate to contact us

 * at info AT gvsig.com, or visit our website www.gvsig.com.

 */

package org.gvsig.topology.rule;

import org.gvsig.expressionevaluator.Expression;

import org.gvsig.expressionevaluator.ExpressionUtils;

import org.gvsig.expressionevaluator.GeometryExpressionBuilder;

import org.gvsig.expressionevaluator.GeometryExpressionUtils;

import org.gvsig.fmap.dal.feature.EditableFeature;

import org.gvsig.fmap.dal.feature.Feature;

import org.gvsig.fmap.dal.feature.FeatureReference;

import org.gvsig.fmap.dal.feature.FeatureSet;

import org.gvsig.fmap.dal.feature.FeatureStore;

import org.gvsig.fmap.geom.Geometry;

import org.gvsig.fmap.geom.primitive.Point;

import org.gvsig.tools.dynobject.DynObject;

import org.gvsig.tools.task.SimpleTaskStatus;

import org.gvsig.topology.lib.spi.AbstractTopologyRule;

import org.gvsig.topology.lib.spi.AbstractTopologyRuleAction;

import org.gvsig.topology.lib.api.ExecuteTopologyRuleActionException;

import org.gvsig.topology.lib.api.TopologyDataSet;

import org.gvsig.topology.lib.api.TopologyPlan;

import org.gvsig.topology.lib.api.TopologyReport;

import org.gvsig.topology.lib.api.TopologyReportLine;

import org.gvsig.topology.lib.api.TopologyRule;

import org.gvsig.topology.lib.api.TopologyRuleFactory;

/**

 *

 * @author jjdelcerro

 */

@SuppressWarnings("UseSpecificCatch")

public class ContainsPointRule extends AbstractTopologyRule {

    private class CreateFetureAction extends AbstractTopologyRuleAction {

        public CreateFetureAction() {

            super(

                    ContainsPointRuleFactory.NAME,

                    "CreateFeature",

                    "Create Feature",

                    "The Create Feature fix creates a new point feature at the centroid of the polygon feature that is causing the error. The point feature that is created is guaranteed to be within the polygon feature."

            );

        }

        @Override

        public void execute(TopologyRule rule, TopologyReportLine line, DynObject parameters) {

            try {

                Geometry polygon = line.getGeometry();

                Point point = polygon.centroid();

                if( !polygon.contains(point) ) {

                    point = polygon.getInteriorPoint();

                }

                TopologyDataSet dataSet = rule.getDataSet2();

                EditableFeature feature = dataSet.createNewFeature();

                feature.setDefaultGeometry(point);

                dataSet.insert(feature);

            } catch (Exception ex) {

                throw new ExecuteTopologyRuleActionException(ex);

            }

        }

    }

    private String geomName;

    private Expression expression = null;

    private GeometryExpressionBuilder expressionBuilder = null;

    public ContainsPointRule(

            TopologyPlan plan,

            TopologyRuleFactory factory,

            double tolerance,

            String dataSet1,

            String dataSet2

    ) {

        super(plan, factory, tolerance, dataSet1, dataSet2);

        this.addAction(new CreateFetureAction());

    }

    @Override

    protected void check(SimpleTaskStatus taskStatus, TopologyReport report, Feature feature1) throws Exception {

        FeatureSet set = null;

        try {

            FeatureStore store2 = this.getDataSet2().getFeatureStore();

            if (this.expression == null) {

                this.expression = ExpressionUtils.createExpression();

                this.expressionBuilder = GeometryExpressionUtils.createExpressionBuilder();

                this.geomName = store2.getDefaultFeatureType().getDefaultGeometryAttributeName();

            }

            Geometry polygon = feature1.getDefaultGeometry();

            TopologyDataSet theDataSet = this.getDataSet2();

            if (theDataSet.getSpatialIndex() != null) {

                boolean contains = false;

                for (FeatureReference featureReference : theDataSet.query(polygon)) {

                    Feature feature2 = featureReference.getFeature();

                    Geometry otherPoint = feature2.getDefaultGeometry();

                    if( otherPoint!=null && polygon.contains(otherPoint) ) {

                        contains = true;

                        break;

                    }

                }

                if( !contains ) {

                    report.addLine(this,

                            this.getDataSet1(),

                            this.getDataSet2(),

                            polygon,

                            polygon,

                            feature1.getReference(),

                            null,

                            false,

                            "The polygon is an error because it does not contain a point."

                    );

                }

            } else {

                this.expression.setPhrase(

                        this.expressionBuilder.ifnull(

                                this.expressionBuilder.column(this.geomName),

                                this.expressionBuilder.constant(false),

                                this.expressionBuilder.ST_Contains(

                                        this.expressionBuilder.geometry(polygon),

                                        this.expressionBuilder.column(this.geomName)

                                )

                        ).toString()

                );

                if (theDataSet.findFirst(this.expression) == null) {

                    report.addLine(this,

                            this.getDataSet1(),

                            this.getDataSet2(),

                            polygon,

                            polygon,

                            feature1.getReference(),

                            null,

                            false,

                            "The polygon is an error because it does not contain a point."

                    );

                }

            }

        } catch (Exception ex) {

            LOGGER.warn("Can't check feature.", ex);

        } finally {

            if (set != null) {

                set.dispose();

            }

        }

    }

}