package com.ximple.io.dgn7;

//~--- JDK imports ------------------------------------------------------------

import java.util.ArrayList;
import java.util.Collection;
import java.util.Iterator;
import java.util.List;
import java.util.ListIterator;

import org.apache.log4j.Logger;

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

/**
 * ComplexShapeElement
 *
 * @author Ulysses
 * @version 0.1
 * @since 2006/5/18 下午 03:45:15
 */
public class ComplexShapeElement extends Element implements ComplexElement, GeometryConverter {
    private static final Logger logger = Logger.getLogger(ComplexShapeElement.class);

    ArrayList<Element> list = new ArrayList<Element>();

    public ComplexShapeElement(byte[] raw) {
        super(raw);
    }

    public int size() {
        return list.size();
    }

    public boolean isEmpty() {
        return list.isEmpty();
    }

    public boolean contains(Object o) {
        return list.contains(o);
    }

    public Iterator iterator() {
        return list.iterator();
    }

    public Object[] toArray() {
        return list.toArray();
    }

    public <T> T[] toArray(T[] ts) {
        return list.toArray(ts);
    }

    public boolean add(Element element) {
        return list.add(element);
    }

    public boolean remove(Object o) {
        return list.remove(o);
    }

    public boolean containsAll(Collection<?> objects) {
        return list.containsAll(objects);
    }

    public boolean addAll(Collection<? extends Element> elements) {
        return list.addAll(elements);
    }

    public boolean addAll(int i, Collection<? extends Element> elements) {
        return list.addAll(i, elements);
    }

    public boolean removeAll(Collection<?> objects) {
        return list.removeAll(objects);
    }

    public boolean retainAll(Collection<?> objects) {
        return list.retainAll(objects);
    }

    public void clear() {
        list.clear();
    }

    public Element get(int index) {
        return list.get(index);
    }

    public Element set(int i, Element element) {
        return list.set(i, element);
    }

    public void add(int i, Element element) {
        list.add(i, element);
    }

    public Element remove(int index) {
        return list.remove(index);
    }

    public int indexOf(Object o) {
        return list.indexOf(o);
    }

    public int lastIndexOf(Object o) {
        return list.lastIndexOf(o);
    }

    public ListIterator listIterator() {
        return list.listIterator();
    }

    public ListIterator listIterator(int index) {
        return list.listIterator(index);
    }

    public List subList(int fromIndex, int toIndex) {
        return list.subList(fromIndex, toIndex);
    }

    public Geometry toGeometry(GeometryFactory factory) {
        ArrayList<Geometry> list = new ArrayList<Geometry>();

        for (ListIterator it = listIterator(); it.hasNext();) {
            Element element = (Element) it.next();

            if (element instanceof ShapeElement) {
                if (((ShapeElement) element).getVerticeSize() == 0 || ((ShapeElement) element).getVerticeSize() > 1) {
                    list.add(((ShapeElement) element).toGeometry(factory));
                }
            } else if (element instanceof LineStringElement) {
                if (((LineStringElement) element).getVerticeSize() == 0 || ((LineStringElement) element).getVerticeSize() > 1) {
                    list.add(((LineStringElement) element).toGeometry(factory));
                }
            } else if (element instanceof LineElement) {
                if (((LineElement) element).getVertices().length == 0 || ((LineElement) element).getVertices().length > 1) {
                    list.add(((LineElement) element).toGeometry(factory));
                }
            } else if (element instanceof ArcElement) {
            }
        }


        CoordinateList pts = new CoordinateList();
        for (Geometry geom : list) {
            pts.add(geom.getCoordinates(), true);
        }

        return factory.createLinearRing(pts.toCoordinateArray());
    }

    public static class ElementHandler extends Element.ElementHandler {
        private static ElementHandler instance = null;

        public ElementHandler() {
            super(ElementType.COMPLEXSHAPE);
        }

        public static IElementHandler getInstance() {
            if (instance == null) {
                instance = new ElementHandler();
            }

            return instance;
        }

        protected Element createElement(byte[] raw) {
            return new ComplexShapeElement(raw);
        }
    }
}