/*
 *    GeoTools - The Open Source Java GIS Toolkit
 *    http://geotools.org
 * 
 *    (C) 2002-2008, Open Source Geospatial Foundation (OSGeo)
 *    
 *    This library is free software; you can redistribute it and/or
 *    modify it under the terms of the GNU Lesser General Public
 *    License as published by the Free Software Foundation;
 *    version 2.1 of the License.
 *
 *    This library 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
 *    Lesser General Public License for more details.
 *
 * Created on November 3, 2003, 12:00 PM
 */

package org.geotools.styling;

import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;

import org.geotools.data.DataStore;
import org.geotools.util.Utilities;
import org.opengis.feature.simple.SimpleFeatureType;

/**
 * DJB: on inlinefeature support:
 * The inline features also lets you "sort of" make your WMS into a WFS-T.
 *
 *I was going to implement this after SLD POST on monday, but I was
 *expecting the definition in the spec to be a bit "nicer".  Right now
 *its just:
 *
 *<element name=�InlineFeature�>
 *  <complexType>
 *    <sequence>
 *      <element ref="gml:_Feature"
 *               maxOccurs="unbounded"/>
  *   </sequence>
  * </complexType>
 *
 *
 * (the spec hasnt been finalized)
 * 
 * I guess if we make some assumptions about the data coming in - ie. every
 * feature is the same type, and its simple (no nesting, no <choices>, and
 * no attributes), then we can parse ones that look like:
 * 
 * <Feature>
 *  <Name>David Blasby</Name>
 *  <Location> ... GML ... </Location>
 * </Feature>
 * 
 *
 *I'm not the best at reading .xsd, but I think that means you can stick
 *in ANY GML Feature.  If so, its way too general.
 *
 *My plan was to parse the first Feature (or, the given schema if there is
 *one) to find out all the property names (and which one(s) are the
 *geometry) and make a FeatureType.  (I'd assume all the properties were
 *strings)
 *
 *Then, make a MemoryDataStore and put the features in it.  I can pass
 *this off to the lite renderer as normal.
 *
 * @author  jamesm
 *
 * @source $URL$
 */
public class UserLayerImpl extends StyledLayerImpl implements UserLayer {

    /**
     *  the (memory) datastore that will contain the inline features.
     *  The initial implementation has this as a MemoryDataStore with one FeatureType in it.
     *  You should ensure that you dont keep references to it around so it can be GCed.
     */
    private DataStore inlineFeatureDatastore = null;
    private SimpleFeatureType inlineFeatureType = null;
    RemoteOWS remoteOWS;
    List<Style> styles = new ArrayList<Style>();
    List<FeatureTypeConstraint> constraints = new ArrayList<FeatureTypeConstraint>();
    
    public RemoteOWS getRemoteOWS() {
        return remoteOWS;
    }

    public DataStore getInlineFeatureDatastore() {
        return inlineFeatureDatastore;
    }

    public SimpleFeatureType getInlineFeatureType() {
        return inlineFeatureType;
    }

    public void setInlineFeatureDatastore(DataStore store) {
        inlineFeatureDatastore = store;
    }

    public void setInlineFeatureType(SimpleFeatureType ft) {
        inlineFeatureType = ft;
    }

    public void setRemoteOWS(RemoteOWS service)
    {
    	this.remoteOWS = service;
    }
    public List<FeatureTypeConstraint> layerFeatureConstraints() {
    	return constraints;
    }
    public FeatureTypeConstraint[] getLayerFeatureConstraints(){
    	return constraints.toArray(new FeatureTypeConstraint[0]);
    }
    
    public void setLayerFeatureConstraints(FeatureTypeConstraint[] array){
    	this.constraints.clear();
    	this.constraints.addAll( Arrays.asList(array));
    }
    
    public List<Style> userStyles() {
    	return styles;
    }
    public Style[] getUserStyles(){
       return (Style[])styles.toArray(new Style[0]);
    }
    
    public void setUserStyles(Style[] styles){ 
    	this.styles.clear();
    	this.styles.addAll(Arrays.asList(styles));
    }    

    public void addUserStyle(Style style){
        styles.add(style);
    }
    
    public void accept(StyleVisitor visitor) {
        visitor.visit(this);
    }

    public boolean equals(Object oth) {
        if (this == oth) {
            return true;
        }

        if (oth instanceof UserLayerImpl) {
            UserLayerImpl other = (UserLayerImpl) oth;

            if (!(Utilities.equals(inlineFeatureDatastore, other.inlineFeatureDatastore) && Utilities.equals(inlineFeatureType, other.inlineFeatureType) && Utilities.equals(remoteOWS, other.remoteOWS) && Utilities.equals(styles, other.styles))) {
                return false;
            }
            if (!Utilities.equals(constraints, other.constraints)){
            	return false;
            }
            return true;
        }

        return false;
    }
}