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/* gvSIG. Geographic Information System of the Valencian Government

*

* Copyright (C) 2007-2008 Infrastructures and Transports Department

* of the Valencian Government (CIT)

*

* 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 2

* 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.

*

*/

/*

* AUTHORS (In addition to CIT):

* 2009 IVER T.I   {{Task}}

*/

/**

 *

 */

package org.gvsig.fmap.mapcontext.layers.vectorial;

import java.util.ArrayList;

import java.util.Iterator;

import java.util.List;

import org.cresques.cts.ICoordTrans;

import org.cresques.cts.IProjection;

import org.gvsig.fmap.dal.exception.DataException;

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

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

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

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

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

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

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

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

import org.gvsig.fmap.geom.Geometry;

import org.gvsig.tools.ToolsLocator;

import org.gvsig.tools.dynobject.DynStruct;

import org.gvsig.tools.persistence.PersistenceManager;

import org.gvsig.tools.persistence.PersistentState;

import org.gvsig.tools.persistence.exception.PersistenceException;

/**

 * @author jmvivo

 *

 */

public class ReprojectDefaultGeometry extends AbstractFeatureStoreTransform {

        private IProjection targetSRS;

        private ICoordTrans ct;

        private IProjection sourceSRS;

        private FeatureType orgDefFeatureType;

        private List orgFeatureTypes;

        public ReprojectDefaultGeometry(){

        }

//        public ReprojectDefaultGeometry(IProjection targetSRS){

//                super("ReprojectDefaultGeometry", "ReprojectDefaultGeometry");

//                this.targetSRS = targetSRS;

//                this.ct = null;

//        }

//        

//        public ReprojectDefaultGeometry(ICoordTrans ct){

//                super("ReprojectDefaultGeometry", "ReprojectDefaultGeometry");

//                this.ct = ct;

//        }

        public IProjection getTargetSRS() {

                return targetSRS;

        }

        public void setTargetSRS(IProjection targetSRS) {

                this.targetSRS = targetSRS;

        }

//        public void setCoordTrans(ICoordTrans ct){

//                this.ct = ct;

//                if ( getFeatureStore() != null ){

//                        setFeatureStore(getFeatureStore());

//                }

//        }

        /* (non-Javadoc)

         * @see org.gvsig.fmap.dal.feature.FeatureStoreTransform#applyTransform(org.gvsig.fmap.dal.feature.Feature, org.gvsig.fmap.dal.feature.EditableFeature)

         */

        public void applyTransform(Feature source, EditableFeature target)

                        throws DataException {

                FeatureAttributeDescriptor attr;

                Iterator iter = target.getType().iterator();

                int defGeomIndex = target.getType().getDefaultGeometryAttributeIndex();

                while (iter.hasNext()) {

                        attr = (FeatureAttributeDescriptor)iter.next();

                        if (attr.getIndex() == defGeomIndex) {

                                Geometry geom =source.getDefaultGeometry();

                                geom.reProject(ct);

                                target.setDefaultGeometry(geom);

                        } else {

                                target.set(attr.getIndex(), source.get(attr.getName()));

                        }

                }

        }

        public void setFeatureStore(FeatureStore store) {

                try {

                        orgDefFeatureType = store.getDefaultFeatureType();

                        orgFeatureTypes = store.getFeatureTypes();

                        EditableFeatureType defFType = orgDefFeatureType

                                        .getEditable();

                        EditableFeatureAttributeDescriptor attr = (EditableFeatureAttributeDescriptor) defFType

                                        .getAttributeDescriptor(defFType

                                                        .getDefaultGeometryAttributeName());

//                        if (ct!=null){

//                                targetSRS = ct.getPDest();

//                                sourceSRS = ct.getPOrig();

//                        } else {

                                sourceSRS = attr.getSRS();

                                ct = sourceSRS.getCT(targetSRS);

//                        }

                        attr.setSRS(this.targetSRS);

                        FeatureType defaultType = defFType.getNotEditableCopy();

                        List types = new ArrayList();

                        Iterator iter = orgFeatureTypes.iterator();

                        FeatureType tmp;

                        while (iter.hasNext()) {

                                tmp = (FeatureType) iter.next();

                                if (tmp.getId().equals(defaultType.getId())) {

                                        types.add(defaultType);

                                } else {

                                        types.add(tmp);

                                }

                        }

                        this.setFeatureTypes(types, defaultType);

                } catch (DataException e) {

                        // FIXME

                        throw new RuntimeException(e);

                }

                super.setFeatureStore(store);

        }

        /* (non-Javadoc)

         * @see org.gvsig.fmap.dal.feature.FeatureStoreTransform#getSourceFeatureTypeFrom(org.gvsig.fmap.dal.feature.FeatureType)

         */

        public FeatureType getSourceFeatureTypeFrom(FeatureType targetFeatureType) {

                EditableFeatureType result = null;

                FeatureType tmp;

                EditableFeatureAttributeDescriptor attr;

                Iterator iter = orgFeatureTypes.iterator();

                Iterator iterAttr;

                while (iter.hasNext()) {

                        tmp = (FeatureType) iter.next();

                        if (tmp.getId().equals(targetFeatureType.getId())) {

                                result = tmp.getEditable();

                                iterAttr = result.iterator();

                                while (iterAttr.hasNext()) {

                                        attr = (EditableFeatureAttributeDescriptor) iterAttr.next();

                                        if (targetFeatureType.getIndex(attr.getName()) < 0) {

                                                iterAttr.remove();

                                        }

                                }

                                break;

                        }

                }

                return result.getNotEditableCopy();

        }

        /* (non-Javadoc)

         * @see org.gvsig.fmap.dal.feature.FeatureStoreTransform#isTransformsOriginalValues()

         */

        public boolean isTransformsOriginalValues() {

                return true;

        }

        /* (non-Javadoc)

         * @see org.gvsig.tools.persistence.Persistent#loadState(org.gvsig.tools.persistence.PersistentState)

         */

        public void saveToState(PersistentState state) throws PersistenceException {

                super.saveToState(state);

                state.set("source_crs", this.sourceSRS);

                state.set("source_defaultFeatureType", this.orgDefFeatureType);

                state.set("source_featureTypes", this.orgFeatureTypes);

                state.set("target_crs", this.targetSRS);

                state.set("coordtrans", this.ct);

        }

        /* (non-Javadoc)

         * @see org.gvsig.tools.persistence.Persistent#loadFromState(org.gvsig.tools.persistence.PersistentState)

         */

        public void loadFromState(PersistentState state) throws PersistenceException {

                super.loadFromState(state);

                this.sourceSRS = (IProjection) state.get("source_crs");

                this.orgDefFeatureType = (FeatureType) state.get("source_defaultFeatureType");

                this.orgFeatureTypes = new ArrayList( (List) state.get("source_featureTypes"));

                this.targetSRS = (IProjection) state.get("target_crs");

                this.ct = (ICoordTrans) state.get("coordtrans");

        }

        public static void registerPersistent() {

                PersistenceManager manager = ToolsLocator.getPersistenceManager();

                DynStruct definition = manager.addDefinition(

                                ReprojectDefaultGeometry.class,

                                "ReprojectDefaultGeometry",

                                "ReprojectDefaultGeometry Persistence definition",

                                null, 

                                null

                );

                definition.extend( manager.getDefinition(AbstractFeatureStoreTransform.class));

                definition.addDynFieldObject("source_crs")

                        .setClassOfValue(IProjection.class)

                        .setMandatory(true);

                definition.addDynFieldObject("source_defaultFeatureType")

                        .setClassOfValue(FeatureType.class)

                        .setMandatory(true);

                definition.addDynFieldList("source_featureTypes")

                        .setClassOfItems(FeatureType.class)

                        .setMandatory(true);

                definition.addDynFieldObject("target_crs")

                        .setClassOfValue(IProjection.class)

                        .setMandatory(true);

                definition.addDynFieldObject("coordtrans")

                        .setClassOfValue(ICoordTrans.class)

                        .setMandatory(true);

        }

}