/* 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.flowdepthminmax;

import java.util.Collection;

import org.apache.commons.lang.math.DoubleRange;
import org.dive4elements.river.artifacts.access.RangeAccess;
import org.dive4elements.river.artifacts.sinfo.SINFOArtifact;
import org.dive4elements.river.artifacts.sinfo.SinfoCalcMode;
import org.dive4elements.river.artifacts.sinfo.flowdepth.WstSoundingIdPair;

/**
 * Access to the flow depth calculation type specific SInfo artifact data.
 * REMARK: this class is NOT intended to be hold in the results (or anywhere else), in order to avoid a permanent
 * reference to the artifact instance.
 * Hence we do NOT cache any data.
 *
 * @author Gernot Belger
 */
final class FlowDepthMinMaxAccess extends RangeAccess {

    private static final String FIELD_DIFFIDS = "diffids";

    public FlowDepthMinMaxAccess(final SINFOArtifact artifact) {
        super(artifact);

        /* assert calculation mode */
        final SinfoCalcMode calculationMode = artifact.getCalculationMode();
        assert (calculationMode == SinfoCalcMode.sinfo_calc_flow_depth_minmax);
    }

    public DoubleRange getRange() {
        final double from = getFrom();
        final double to = getTo();
        return new DoubleRange(from, to);
    }

    public Collection<WstSoundingIdPair> getMinMaxPairs() {
        final String diffids = getString(FIELD_DIFFIDS);
        return WstSoundingIdPair.parsePairs(diffids);
    }
}