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

import java.io.File;

import java.io.FileNotFoundException;

import org.cresques.cts.IProjection;

import org.gvsig.fmap.crs.CRSFactory;

import org.gvsig.fmap.dal.DALLocator;

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

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

import org.gvsig.fmap.mapcontext.MapContextException;

import org.gvsig.fmap.mapcontext.MapContextLocator;

import org.gvsig.fmap.mapcontext.exceptions.DriverLayerException;

import org.gvsig.fmap.mapcontext.exceptions.FileLayerException;

import org.gvsig.fmap.mapcontext.exceptions.LegendLayerException;

import org.gvsig.fmap.mapcontext.exceptions.LoadLayerException;

import org.gvsig.fmap.mapcontext.exceptions.NameLayerException;

import org.gvsig.fmap.mapcontext.exceptions.ProjectionLayerException;

import org.gvsig.fmap.mapcontext.exceptions.XMLLayerException;

import org.gvsig.fmap.mapcontext.rendering.legend.ILegend;

import org.gvsig.fmap.mapcontext.rendering.legend.IVectorLegend;

import org.gvsig.fmap.mapcontext.rendering.legend.styling.ILabelingStrategy;

import org.gvsig.tools.dynobject.exception.DynMethodException;

import org.gvsig.tools.exception.BaseException;

import org.gvsig.tools.locator.LocatorException;

import org.gvsig.utils.XMLEntity;

import org.gvsig.utils.XMLException;

public class FLayerFileVectorial extends FLyrVect{

        private boolean loaded = false;

        private File dataFile = null;

//        private FeatureStore featureStore = null;

        public FLayerFileVectorial() {

                super();

        }

        public FLayerFileVectorial(String name, String fileName,String driverName,String projectionName) throws Exception {

                super();

                this.setName(name);

                this.setFileName(fileName);

//                this.setDriverByName(driverName);

                this.setProjectionByName(projectionName);

        }

        /* Esto deberia ir en el FLyrDefault */

        public void setProjectionByName(String projectionName) throws Exception{

                IProjection proj = CRSFactory.getCRS(projectionName);

                if (proj == null) {

                        throw new Exception("No se ha encontrado la proyeccion: "+ projectionName);

                }

                this.setProjection(proj);

        }

        public void setFileName(String filePath) throws FileNotFoundException{

                if (dataFile != null) {

                        //TODO: que excepcion lanzar???

                        return;

                }

                File file = new File(filePath);

                if (!file.exists()) {

                        throw new FileNotFoundException(filePath);

                }

                this.dataFile = file;

        }

        public void setFile(File file) throws FileNotFoundException {

                if (dataFile != null) {

                        //TODO: que excepcion lanzar???

                        return;

                }

                if (!file.exists()) {

                        throw new FileNotFoundException(file.getAbsolutePath());

                }

                this.dataFile = new File(file.getAbsolutePath());

        }

        public String getFileName() {

                if (this.dataFile == null) {

                        return null;

                }

                return this.dataFile.getAbsolutePath();

        }

        public void setFeatureStore(FeatureStore fs) throws LoadLayerException {

                this.setDataStore(fs);

        }

//        public void setDriverByName(String driverName) throws DriverLoadException {

//                this.setDriver(

//                  (VectorialFileDriver)LayerFactory.getDM().getDriver(driverName)

//                );

//        }

//        public VectorialFileDriver getDriver() {

//                return this.fileDriver;

//        }

        /* FIXME: esto tendria que tener declarado un throws de algo*/

        public void wakeUp() throws LoadLayerException {

                if (!loaded) {

                        this.load();

                }

        }

        public void load() throws LoadLayerException {

                if (this.dataFile == null) {

                        this.setAvailable(false);

                        throw new FileLayerException(getName(),null);

                }

                if (this.getName() == null || this.getName().length() == 0) {

                        this.setAvailable(false);

                        throw new NameLayerException(getName(),null);

                }

                try {

                        if (this.getFeatureStore() == null) {

                                this.setAvailable(false);

                                throw new DriverLayerException(getName(),null);

                        }

                } catch (ReadException e2) {

                        throw new LoadLayerException(getName(),e2);

                } catch (DriverLayerException e2) {

                        throw new LoadLayerException(getName(),e2);

                }

                if (this.getProjection() == null) {

                        this.setAvailable(false);

                        throw new ProjectionLayerException(getName(),null);

                }

                try {

                        this.setDataStore(DALLocator.getDataManager().createStore(getFeatureStore().getParameters()));

                } catch (Exception e) {

                        throw new LoadLayerException(getName(),e);

                }

                        try {

                                this.putLoadSelection();

                                this.putLoadLegend();

                                this.initializeLegendDefault();

                        } catch (Exception e) {

                                this.setAvailable(false);

                                throw new LegendLayerException(getName(),e);

                        }

                this.cleanLoadOptions();

                this.loaded = true;

        }

        /* Esto deberia ir en FLyrVect */

        private void initializeLegendDefault() throws LegendLayerException, ReadException {

                if (this.getLegend() == null) {

//                        this.getFeatureStore().getMetadata().

                        Object obj=null;

                        try {

                                // FIXME arreglar esto

                                obj = this.getFeatureStore().getDynValue(

                                                "WithDefaultLegend");

                        } catch (BaseException e1) {

                                throw new ReadException(getName(), e1);

                        }

            if (obj!=null && ((Boolean)obj).booleanValue()) {

                    ILegend legend = null;

                                        try {

                                                legend = (ILegend) getFeatureStore().invokeDynMethod(

                                                        "defaultLegend", null);

                                        } catch (DynMethodException e) {

                                                throw new LegendLayerException(getName(),e);

                                        }

//                    WithDefaultLegend aux = (WithDefaultLegend) this.getRecordset().getDriver();

                this.setLegend((IVectorLegend)legend);

            } else {

                            IVectorLegend legend = MapContextLocator.getMapContextManager()

                                                        .createDefaultVectorLegend(getShapeType());

                                this.setLegend(legend);

            }

            obj = null;

//            try {

//                    // FIXME Arregla esto

//                                obj = this.getFeatureStore().getMetadata().getDynValue(

//                                                "LabelingStrategy");

//                        } catch (BaseException e) {

//                                throw new ReadException(getName(),e);

//                        }

            if (obj!=null && ((Boolean)obj).booleanValue()){

            ILabelingStrategy labeler=null;

                        try {

                                labeler = (ILabelingStrategy) getFeatureStore()

                                                        .invokeDynMethod("labelingStrategy", null);

                        } catch (DynMethodException e) {

                                throw new LegendLayerException(getName(),e);

                        }

            labeler.setLayer(this);

            this.setLabelingStrategy(labeler);

            }

                }

//                if (this.getLegend() == null) {

//            if (this.getRecordset().getDriver() instanceof WithDefaultLegend) {

//                WithDefaultLegend aux = (WithDefaultLegend) this.getRecordset().getDriver();

//                this.setLegend((IVectorLegend) aux.getDefaultLegend());

//

//                ILabelingStrategy labeler = aux.getDefaultLabelingStrategy();

//                if (labeler instanceof AttrInTableLabelingStrategy) {

//                        ((AttrInTableLabelingStrategy) labeler).setLayer(this);

//                }

//

//                this.setLabelingStrategy(labeler);

//            } else {

//                this.setLegend(LegendFactory.createSingleSymbolLegend(

//                        this.getShapeType()));

//            }

//                }

        }

        public void setXMLEntity(XMLEntity xml) throws XMLException {

        IProjection proj = null;

        if (xml.contains("proj")) {

            proj = CRSFactory.getCRS(xml.getStringProperty("proj"));

        }

        else

        {

            proj = this.getMapContext().getViewPort().getProjection();

        }

                this.setName(xml.getName());

                this.setProjection(proj);

//                try {

//                        this.setDriver(

//                                (VectorialFileDriver)LayerFactory.getDM().getDriver(

//                                        xml.getStringProperty("driverName")

//                                )

//                        );

//                } catch (DriverLoadException e) {

//                        throw new XMLException(e);

//                } catch (ClassCastException e) {

//                        throw new XMLException(e);

//                }

                try {

                        this.setFileName(xml.getStringProperty("file"));

                } catch (FileNotFoundException e) {

                        throw new XMLLayerException(getClassName(),e);

                }

                super.setXMLEntityNew(xml);

        }

}