package com.ximple.eofms.jobs.context.mysql;

import java.util.ArrayList;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.net.MalformedURLException;
import java.io.IOException;
import java.math.BigDecimal;
import java.math.RoundingMode;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.commons.transaction.util.LoggerFacade;
import org.apache.commons.transaction.util.CommonsLoggingLogger;
import org.apache.commons.transaction.memory.PessimisticMapWrapper;
import org.geotools.feature.Feature;
import org.geotools.feature.FeatureTypeBuilder;
import org.geotools.feature.FeatureType;
import org.geotools.feature.IllegalAttributeException;
import org.geotools.feature.SchemaException;
import org.geotools.feature.SimpleFeature;
import org.geotools.data.FeatureWriter;
import org.geotools.data.DataStore;
import org.geotools.data.Transaction;

import com.vividsolutions.jts.geom.GeometryFactory;
import com.vividsolutions.jts.geom.Envelope;
import com.vividsolutions.jts.geom.Geometry;
import com.vividsolutions.jts.geom.Coordinate;

import com.ximple.eofms.util.TWD97GeometryConverterDecorator;
import com.ximple.eofms.util.FeatureTypeBuilderUtil;
import com.ximple.eofms.util.DefaultColorTable;
import com.ximple.eofms.util.TPCLIDConverter;
import com.ximple.eofms.util.TWDDatumConverter;
import com.ximple.io.dgn7.Element;
import com.ximple.io.dgn7.TextElement;
import com.ximple.io.dgn7.FrammeAttributeData;
import com.ximple.io.dgn7.UserAttributeData;

public class IndexDgnConvertMySQLJobContext extends AbstractDgnToMySQLJobContext
{
    static final Log logger = LogFactory.getLog(IndexDgnConvertMySQLJobContext.class);
    static final LoggerFacade sLogger = new CommonsLoggingLogger(logger);
    static final GeometryFactory geometryFactory = new GeometryFactory();
    TWD97GeometryConverterDecorator convertDecorator = new TWD97GeometryConverterDecorator();

    private HashMap<String, ArrayList<Feature>> featuresContext = new HashMap<String, ArrayList<Feature>>();
    private HashMap<String, FeatureWriter> featuresWriterContext = new HashMap<String, FeatureWriter>();

    private PessimisticMapWrapper txFeaturesContext;
    private FeatureTypeBuilder typeBuilderPnt = null;
    private FeatureTypeBuilder typeBuilderRect = null;
    private FeatureType featureType = null;
    private FeatureType featureType2 = null;

    public IndexDgnConvertMySQLJobContext(String dataPath, DataStore targetDataStore)
    {
        super(dataPath, targetDataStore);
        txFeaturesContext = new PessimisticMapWrapper(featuresContext, sLogger);
    }

    public void putFeatureCollection(Element element) throws IllegalAttributeException, SchemaException
    {
        if (!(element instanceof TextElement))
        {
            return;
        }

        Feature feature = createFeature((TextElement) element);
        if (feature == null)
        {
            logger.info("cannot craete feature." + element.toString() + "'" +
                    ((TextElement) element).getText() + "'");
            return;
        }

        if (!txFeaturesContext.containsKey(feature.getFeatureType()))
        {
            txFeaturesContext.put(feature.getFeatureType(), new ArrayList());
        }
        ArrayList arrayList = (ArrayList) txFeaturesContext.get(feature.getFeatureType());
        arrayList.add(feature);

        feature = createFeature2((TextElement) element);
        if (feature == null)
        {
            logger.info("cannot craete feature2." + element.toString() + "'" +
                    ((TextElement) element).getText() + "'");
            return;
        }

        if (!txFeaturesContext.containsKey(feature.getFeatureType()))
        {
            txFeaturesContext.put(feature.getFeatureType(), new ArrayList());
        }
        arrayList = (ArrayList) txFeaturesContext.get(feature.getFeatureType());
        arrayList.add(feature);
    }

    public void startTransaction()
    {
    }

    public void commitTransaction()
    {
        if (!txFeaturesContext.isEmpty())
        {
            logger.debug("Transaction size = " + txFeaturesContext.size());
            //txFeaturesContext.commitTransaction();
        } else
        {
            logger.debug("Transaction is empty.");
        }

        if (!featuresContext.isEmpty())
        {
            updateDataStore();
        }
    }

    public void rollbackTransaction()
    {
        //txFeaturesContext.rollbackTransaction();
        if (!featuresContext.isEmpty())
        {
            updateDataStore();
        }
    }

    private void updateDataStore()
    {
        Iterator it = featuresContext.keySet().iterator();

        try
        {
            while (it.hasNext())
            {
                FeatureType featureType = (FeatureType) it.next();
                logger.debug("Begin Save OracleSDO:" + featureType.getTypeName());

                FeatureWriter writer;
                if (featuresWriterContext.containsKey(featureType.getTypeName()))
                {
                    writer = featuresWriterContext.get(featureType.getTypeName());
                } else
                {
                    if (targetDataStore.getSchema(featureType.getTypeName()) == null)
                    {
                        targetDataStore.createSchema(featureType);
                        writer = targetDataStore.getFeatureWriter(featureType.getTypeName(), Transaction.AUTO_COMMIT);
                    } else
                    {
                        writer = targetDataStore.getFeatureWriterAppend(featureType.getTypeName(), Transaction.AUTO_COMMIT);
                    }
                    featuresWriterContext.put(featureType.getTypeName(), writer);
                }

                ArrayList<Feature> features = featuresContext.get(featureType);
                for (Feature feature1 : features)
                {
                    ((SimpleFeature) writer.next()).setAttributes(feature1.getAttributes(null));
                }
                //writer.close();
                logger.debug("End Save OracleSDO:" + featureType.getTypeName());
            }
            featuresContext.clear();
        } catch (MalformedURLException e)
        {
            logger.error(e.getMessage(), e);
        } catch (IllegalAttributeException e)
        {
            logger.error(e.getMessage(), e);
        } catch (IOException e)
        {
            logger.error(e.getMessage(), e);
        }
    }

    public void closeFeatureWriter() throws IOException
    {

        for (FeatureWriter featureWriter : this.featuresWriterContext.values())
        {
            featureWriter.close();
        }

        this.featuresWriterContext.clear();
    }

    public FeatureType createFeatureElement(String featureName) throws SchemaException
    {
        if (typeBuilderRect == null)
        {
            typeBuilderRect = FeatureTypeBuilderUtil.createNormalIndexFeatureTypeBuilder(featureName);
        }
        return typeBuilderRect.getFeatureType();
    }

    public FeatureType createFeatureElement2(String featureName) throws SchemaException
    {
        if (typeBuilderPnt == null)
        {
            typeBuilderRect = FeatureTypeBuilderUtil.createNormalIndexTextFeatureTypeBuilder(featureName);
        }
        return typeBuilderPnt.getFeatureType();
    }

    public Feature createFeature(FeatureType featureType, Element element) throws IllegalAttributeException
    {
        DefaultColorTable colorTable = (DefaultColorTable) DefaultColorTable.getInstance();
        if (element instanceof TextElement)
        {
            TextElement textElement = (TextElement) element;
            String tpclid = textElement.getText();

            Envelope extent = TPCLIDConverter.convertTpclIdToEnvelope(tpclid);
            Geometry geom = geometryFactory.createLinearRing(new Coordinate[]
                    {
                            TWDDatumConverter.fromTM2ToTWD97(new Coordinate(extent.getMinX(), extent.getMinY())),
                            TWDDatumConverter.fromTM2ToTWD97(new Coordinate(extent.getMaxX(), extent.getMinY())),
                            TWDDatumConverter.fromTM2ToTWD97(new Coordinate(extent.getMaxX(), extent.getMaxY())),
                            TWDDatumConverter.fromTM2ToTWD97(new Coordinate(extent.getMinX(), extent.getMaxY())),
                            TWDDatumConverter.fromTM2ToTWD97(new Coordinate(extent.getMinX(), extent.getMinY())),
                    });

            return featureType.create(new Object[]{
                    geom,
                    extent.getMinX(),
                    extent.getMinY(),
                    extent.getMaxX(),
                    extent.getMaxY(),
                    tpclid,
                    colorTable.getColorCode(textElement.getColorIndex()),
                    textElement.getWeight(),
                    textElement.getLineStyle()
            });
        }
        return null;
    }

    public Feature createFeature2(FeatureType featureType, Element element) throws IllegalAttributeException
    {
        DefaultColorTable colorTable = (DefaultColorTable) DefaultColorTable.getInstance();
        if (element instanceof TextElement)
        {
            TextElement txtElement = (TextElement) element;
            double angle = txtElement.getRotationAngle();
            angle = BigDecimal.valueOf(angle).setScale(3, RoundingMode.HALF_UP).doubleValue();
            convertDecorator.setConverter(txtElement);
            Feature feature = featureType.create(new Object[]{
                    convertDecorator.toGeometry(geometryFactory),
                    colorTable.getColorCode(txtElement.getColorIndex()),
                    txtElement.getWeight(),
                    txtElement.getLineStyle(),
                    txtElement.getJustification(),
                    txtElement.getTextHeight(),
                    txtElement.getTextWidth(),
                    angle,
                    txtElement.getText()
            });
            return feature;
        }
        return null;
    }

    private Feature createFeature(TextElement element) throws SchemaException, IllegalAttributeException
    {
        if (featureType == null)
        {
            String dgnname = getFilename().toLowerCase();
            int i = dgnname.lastIndexOf(".");
            if (i != -1)
            {
                dgnname = dgnname.substring(0, i);
            }
            featureType = createFeatureElement(dgnname);
        }
        return createFeature(featureType, element);
    }

    private Feature createFeature2(TextElement element) throws SchemaException, IllegalAttributeException
    {
        if (featureType2 == null)
        {
            String dgnname = getFilename().toLowerCase();
            int i = dgnname.lastIndexOf(".");
            if (i != -1)
            {
                dgnname = dgnname.substring(0, i);
            }
            dgnname = dgnname + "P";
            featureType2 = createFeatureElement2(dgnname);
        }
        return createFeature2(featureType2, element);
    }

    protected FrammeAttributeData getFeatureLinkage(Element element)
    {
        if (!element.hasUserAttributeData())
            return null;

        List<UserAttributeData> usrDatas = element.getUserAttributeData();
        for (UserAttributeData anUsrData : usrDatas)
        {
            if (anUsrData instanceof FrammeAttributeData)
            {
                return (FrammeAttributeData) anUsrData;
            }
        }
        return null;
    }

    public Log getLogger()
    {
        return logger;
    }
}