/* Copyright (C) 2011, 2012, 2013 by Bundesanstalt für Gewässerkunde
 * Software engineering by Intevation GmbH
 *
 * This file is Free Software under the GNU AGPL (>=v3)
 * and comes with ABSOLUTELY NO WARRANTY! Check out the
 * documentation coming with Dive4Elements River for details.
 */

package org.dive4elements.river.artifacts.states;

import java.util.HashMap;
import java.util.List;
import java.util.Map;

import org.apache.log4j.Logger;
import org.dive4elements.artifacts.Artifact;
import org.dive4elements.artifacts.CallContext;
import org.dive4elements.artifacts.common.utils.XMLUtils.ElementCreator;
import org.dive4elements.river.artifacts.D4EArtifact;
import org.dive4elements.river.artifacts.access.RiverAccess;
import org.dive4elements.river.artifacts.model.CollisionHibernateFactory;
import org.dive4elements.river.model.sinfo.Collision;
import org.w3c.dom.Element;

/** State in which to fetch years for sedminent load calculation. */
public class LoadSingleYearSelectState extends DefaultState {
    private static final long serialVersionUID = 1L;
    /** The log used in this class. */
    private static Logger log = Logger.getLogger(LoadSingleYearSelectState.class);

    /**
     * The default constructor that initializes an empty State object.
     */
    public LoadSingleYearSelectState() {
    }

    /** Year Select Widget. */
    @Override
    protected String getUIProvider() {
        return "common.state.load_single_year_select";
    }

    @Override
    protected void appendItems(final Artifact artifact, final ElementCreator creator, final String name, final CallContext context, final Element select) {
        final String dataKey = "singleyear";
        try {
            if (dataKey.equals(name)) {

                final AddTableDataHelper helper = new AddTableDataHelper(creator, select, "year", context.getMeta()); // pinKeycolum; nicht zu verweschseln mit
                                                                                                                      // datakey..artifact.

                helper.addColumn(0, "pinfrom", "60", "common.client.ui.selection", "ICON", "CENTER", "from");
                helper.addColumn(1, "year", "60", "year", "INTEGER", "LEFT", null);

                final RiverAccess access = new RiverAccess((D4EArtifact) artifact);
                final List<Collision> collisions = CollisionHibernateFactory.getCollisionsByRiver(access.getRiver());// TODO: DATASOURCE?! Has to be
                                                                                                                     // uinfo.inundation_duration
                // (Überflutungsdauern Aue) irgendwas...

                for (final Collision coll : collisions) {
                    final Integer year = coll.getYear();
                    final Map<String, String> row = new HashMap<>();
                    row.put("year", year.toString()); // Nullpointer-Check?
                    helper.addRow(row);

                }
                helper.submitMapToXml();
            }
        }
        catch (final IllegalArgumentException iae) {
            iae.printStackTrace();
        }
    }

    @Override
    public boolean validate(final Artifact artifact) throws IllegalArgumentException {
        return true;
        // final CollisionLoadYearEpochAccess access = new CollisionLoadYearEpochAccess((D4EArtifact) artifact);
        //
        // // Second year should be later than first.
        // if (access.getYears() == null || access.getYears().length == 0)
        // return true; // TODO: richtig in CollisionLoadYear... implementieren
        // // throw new IllegalArgumentException("error_years_wrong");
        //
        // return true;
    }
}