// License: GPL. Copyright 2007 by Immanuel Scholz and others
package org.openstreetmap.josm.command;

//import static org.openstreetmap.josm.tools.I18n.marktr;
//import static org.openstreetmap.josm.tools.I18n.tr;

import java.util.Collection;
import java.util.Collections;

//import javax.swing.JLabel;

import org.openstreetmap.josm.data.osm.OsmPrimitive;
//import org.openstreetmap.josm.data.osm.OsmPrimitiveType;
//import org.openstreetmap.josm.gui.DefaultNameFormatter;
import org.openstreetmap.josm.gui.layer.OsmDataLayer;
//import org.openstreetmap.josm.tools.ImageProvider;

/**
 * GWT
 * 
 * TODO
 *  implement getDescription()
 */

/**
 * A command that adds an osm primitive to a dataset. Keys cannot be added this
 * way.
 *
 * See {@see ChangeCommand} for comments on relation back references.
 *
 * @author imi
 */
public class AddCommand extends Command {

    /**
     * The primitive to add to the dataset.
     */
    private final OsmPrimitive osm;

    /**
     * Create the command and specify the element to add.
     */
    public AddCommand(OsmPrimitive osm) {
        super();
        this.osm = osm;
    }

    /**
     * Create the command and specify the element to add.
     */
    public AddCommand(OsmDataLayer layer, OsmPrimitive osm) {
        super(layer);
        this.osm = osm;
    }

    @Override public boolean executeCommand() {
        getLayer().data.addPrimitive(osm);
        return true;
    }

    @Override public void undoCommand() {
        getLayer().data.removePrimitive(osm);
    }

    @Override public void fillModifiedData(Collection<OsmPrimitive> modified, Collection<OsmPrimitive> deleted, Collection<OsmPrimitive> added) {
        added.add(osm);
    }

//    @Override public JLabel getDescription() {
//        String msg;
//        switch(OsmPrimitiveType.from(osm)) {
//        case NODE: msg = marktr("Add node {0}"); break;
//        case WAY: msg = marktr("Add way {0}"); break;
//        case RELATION: msg = marktr("Add relation {0}"); break;
//        default: /* should not happen */msg = ""; break;
//        }
//
//        return new JLabel(
//                tr(msg, osm.getDisplayName(DefaultNameFormatter.getInstance())),
//                ImageProvider.get(OsmPrimitiveType.from(osm)),
//                JLabel.HORIZONTAL);
//    }

    @Override
    public Collection<OsmPrimitive> getParticipatingPrimitives() {
        return Collections.singleton(osm);
    }
}