/* Copyright (C) 2017 by Bundesanstalt für Gewässerkunde
 * Software engineering by
 *  Björnsen Beratende Ingenieure GmbH
 *  Dr. Schumacher Ingenieurbüro für Wasser und Umwelt
 *
 * 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.sinfo.common;

import java.util.HashSet;
import java.util.Set;

import org.dive4elements.artifactdatabase.state.Facet;
import org.dive4elements.artifacts.CallContext;

public final class TauProcessor extends AbstractSInfoLineProcessor<AbstractTkhCalculationResult> {

    public static final String FACET_TKH_TAU_FILTERED = "sinfo_facet_tau";

    private static final String I18N_AXIS_LABEL = "sinfo.chart.tkh_tau.section.yaxis.label";

    private static final String SINFO_CHART_TAU_YAXIS_LABEL = "sinfo.chart.tkh_tau.yaxis.label";

    private static final String I18N_FACET_TKH_TAU_FILTERED_DESCRIPTION = "sinfo.facet.tkh_tau.description";

    private static final Set<String> HANDLED_FACET_TYPES = new HashSet<>();

    static {
        HANDLED_FACET_TYPES.add(FACET_TKH_TAU_FILTERED);
    }

    public TauProcessor() {
        super(I18N_AXIS_LABEL, HANDLED_FACET_TYPES);
    }

    @Override
    protected double[][] doGetPoints(final AbstractTkhCalculationResult data, final String facetName) {

        if (FACET_TKH_TAU_FILTERED.contentEquals(facetName))
            return data.getStationPoints(SInfoResultType.tau);

        final String error = String.format("Unknown facet name: %s", facetName);
        throw new UnsupportedOperationException(error);
    }

    public static Facet createTauFacet(final CallContext context, final String hash, final String id, final AbstractSInfoCalculationResult result,
            final int index) {
        return AbstractSInfoLineProcessor.createFacet(context, hash, id, result, index, SINFO_CHART_TAU_YAXIS_LABEL, FACET_TKH_TAU_FILTERED,
                I18N_FACET_TKH_TAU_FILTERED_DESCRIPTION);
    }
}