/* 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.uinfo.inundationduration;

import java.io.IOException;
import java.util.Collection;
import java.util.HashMap;
import java.util.Map;

import org.dive4elements.artifactdatabase.data.StateData;
import org.dive4elements.artifacts.Artifact;
import org.dive4elements.artifacts.CallContext;
import org.dive4elements.artifacts.common.utils.XMLUtils;
import org.dive4elements.artifacts.common.utils.XMLUtils.ElementCreator;
import org.dive4elements.river.artifacts.sinfo.tkhstate.TsvHelper.TsvReaderException;
import org.dive4elements.river.artifacts.states.AddTableDataHelper;
import org.dive4elements.river.artifacts.states.DefaultState;
import org.dive4elements.river.artifacts.uinfo.UINFOArtifact;
import org.dive4elements.river.artifacts.uinfo.inundationduration.UedauernConfiguration.YearType;
import org.dive4elements.river.artifacts.uinfo.salix.ScenarioTypeState;
import org.w3c.dom.Element;

/** State in which to fetch years for sedminent load calculation. */
public abstract class AbstractYearEpochUrlState extends DefaultState {
    private static final long serialVersionUID = 1L;
    private final YearType type;

    /**
     * The default constructor that initializes an empty State object.
     *
     * @param jahre
     */
    public AbstractYearEpochUrlState(final YearType type) {
        this.type = type;
    }

    protected abstract String getDatakey();

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

                final InundationDurationAccess access = new InundationDurationAccess((UINFOArtifact) artifact);
                final UedauernConfiguration properties = UedauernConfiguration.getInstance(access.getRiverName(), this.type);
                final Collection<String> items = properties.getLabels();

                final String columnType = "TEXT";
                final AddTableDataHelper helper = new AddTableDataHelper(creator, select, "select_key", context.getMeta()); // pinKeycolum; nicht zu

                helper.addColumn(0, "pinfrom", "60", "common.client.ui.selection", "ICON", "CENTER", "from");
                helper.addColumn(1, "select_key", "240", getColumnHeader(), columnType, "LEFT", null);

                for (final String year : items) {
                    final Map<String, String> row = new HashMap<>();
                    row.put("select_key", year);
                    helper.addRow(row);

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

    private String getColumnHeader() {
        switch (this.type) {
        case szenario:
            return "state.uinfo.inundation.scenario.table_header";
        default:
            return getTypeString();

        }

    }

    private String getTypeString() {
        switch (this.type) {
        case jahre:
            return "year";

        case mittel:
            return "state.uinfo.epoch";

        case szenario:
            return "state.uinfo.inundation.scenario";

        default:
            throw new IllegalStateException();
        }
    }

    @Override
    protected Element createData(final XMLUtils.ElementCreator cr, final Artifact artifact, final StateData data, final CallContext context) {
        return ScenarioTypeState.changeHeaderForCurrentState(getTypeString(), data.getName(), cr, context);
    }
}