package com.ximple.eofms.filter;

import java.util.List;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.geotools.feature.AttributeTypeFactory;
import org.geotools.feature.Feature;
import org.geotools.feature.FeatureType;
import org.geotools.feature.FeatureTypeBuilder;
import org.geotools.feature.IllegalAttributeException;
import org.geotools.feature.SchemaException;

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

import com.ximple.eofms.jobs.TWD97GeometryConverterDecorator;
import com.ximple.eofms.util.DefaultColorTable;
import com.ximple.io.dgn7.Element;
import com.ximple.io.dgn7.FrammeAttributeData;
import com.ximple.io.dgn7.TextElement;
import com.ximple.io.dgn7.TextNodeElement;
import com.ximple.io.dgn7.UserAttributeData;

public class CreateTextStrategy implements CreateFeatureTypeStrategy
{
    static final Log logger = LogFactory.getLog(CreateTextStrategy.class);
    GeometryFactory geometryFactory = new GeometryFactory();
    FeatureTypeBuilder typeBuilder = null;
    TWD97GeometryConverterDecorator convertDecorator = new TWD97GeometryConverterDecorator();

    public CreateTextStrategy()
    {
    }

    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 FeatureType createFeatureElement(String featureName) throws SchemaException
    {
        if (typeBuilder == null)
        {
            typeBuilder = FeatureTypeBuilder.newInstance(featureName);
            typeBuilder.addType(AttributeTypeFactory.newAttributeType("GEOM", Geometry.class));
            typeBuilder.addType(AttributeTypeFactory.newAttributeType("TID", Integer.class));
            typeBuilder.addType(AttributeTypeFactory.newAttributeType("OID", Long.class));
            typeBuilder.addType(AttributeTypeFactory.newAttributeType("CID", Integer.class));
            typeBuilder.addType(AttributeTypeFactory.newAttributeType("LID", Integer.class));
            typeBuilder.addType(AttributeTypeFactory.newAttributeType("LEVEL", Integer.class));
            typeBuilder.addType(AttributeTypeFactory.newAttributeType("SYMCOLOR", String.class));
            typeBuilder.addType(AttributeTypeFactory.newAttributeType("SYMWEIGHT", Integer.class));
            typeBuilder.addType(AttributeTypeFactory.newAttributeType("SYMSTYLE", Integer.class));
            typeBuilder.addType(AttributeTypeFactory.newAttributeType("JUST", Integer.class));
            typeBuilder.addType(AttributeTypeFactory.newAttributeType("HEIGHT", Double.class));
            typeBuilder.addType(AttributeTypeFactory.newAttributeType("WIDTH", Double.class));
            typeBuilder.addType(AttributeTypeFactory.newAttributeType("ANGLE", Double.class));
            typeBuilder.addType(AttributeTypeFactory.newAttributeType("CONTEXT", String.class));
        }
        return typeBuilder.getFeatureType();
    }

    public Feature createFeature(FeatureType featureType, Element element) throws IllegalAttributeException
    {
        DefaultColorTable colorTable = (DefaultColorTable) DefaultColorTable.getInstance();
        FrammeAttributeData fLinkage = getFeatureLinkage(element);
        if (fLinkage == null) return null;
        if (element instanceof TextElement)
        {
            TextElement txtElement = (TextElement) element;
            double angle = txtElement.getRotationAngle();
            /*
            if (angle != 0.0)
            {
                angle -= 270.0;
                angle = -angle;
                angle = ((angle < 0.0) ? (angle + 360.0) : angle);
                angle = ((angle > 360.0) ? (angle - 360.0) : (angle));
            }
            */
            convertDecorator.setConverter(txtElement);
            Feature feature = featureType.create(new Object[]{
                    convertDecorator.toGeometry(geometryFactory),
                    (int) fLinkage.getFsc(),
                    (long) fLinkage.getUfid(),
                    (int) fLinkage.getComponentID(),
                    0,
                    txtElement.getLevelIndex(),
                    colorTable.getColorCode(txtElement.getColorIndex()),
                    txtElement.getWeight(),
                    txtElement.getLineStyle(),
                    txtElement.getJustification(),
                    txtElement.getTextHeight(),
                    txtElement.getTextWidth(),
                    angle,
                    txtElement.getText()
            });
            return feature;
        } else if (element instanceof TextNodeElement)
        {
            TextNodeElement nodeElement = (TextNodeElement) element;
            String[] texts = nodeElement.getTextArray();
            StringBuffer sb = new StringBuffer();
            for (String text : texts)
            {
                if (sb.length() != 0)
                    sb.append("\n");
                sb.append(text);
            }

            double angle = nodeElement.getRotationAngle();
            /*
            if (angle != 0.0)
            {
                angle -= 270.0;
                angle = -angle;
                angle = ((angle < 0.0) ? (angle + 360.0) : angle);
                angle = ((angle > 360.0) ? (angle - 360.0) : (angle));
            }
            */
            convertDecorator.setConverter(nodeElement);
            Feature feature = featureType.create(new Object[]{
                    convertDecorator.toGeometry(geometryFactory),
                    (int) fLinkage.getFsc(),
                    (long) fLinkage.getUfid(),
                    (int) fLinkage.getComponentID(),
                    0,
                    nodeElement.getLevelIndex(),
                    colorTable.getColorCode(nodeElement.getColorIndex()),
                    nodeElement.getWeight(),
                    nodeElement.getLineStyle(),
                    nodeElement.getJustification(),
                    nodeElement.getTextNodeHeight(),
                    nodeElement.getTextNodeLength(),
                    angle,
                    sb.toString()
            });
            return feature;
        }
        return null;
    }
}