/* 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.exports;

import org.apache.log4j.Logger;

import org.jfree.data.xy.XYSeries;

import org.dive4elements.artifactdatabase.state.ArtifactAndFacet;
import org.dive4elements.artifactdatabase.state.Facet;

import org.dive4elements.river.artifacts.model.FacetTypes;
import org.dive4elements.river.artifacts.model.WQCKms;
import org.dive4elements.river.exports.process.Processor;
import org.dive4elements.river.exports.process.QOutProcessor;
import org.dive4elements.river.exports.process.WOutProcessor;

import org.dive4elements.river.jfree.RiverAnnotation;
import org.dive4elements.river.jfree.StyledXYSeries;
import org.dive4elements.river.themes.ThemeDocument;



/**
 * An OutGenerator that generates discharge longitudinal section curves.
 *
 * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a>
 */
public class DischargeLongitudinalSectionGenerator
extends      LongitudinalSectionGenerator
implements   FacetTypes
{
    private static Logger logger =
        Logger.getLogger(DischargeLongitudinalSectionGenerator.class);


    public DischargeLongitudinalSectionGenerator() {
        super();
    }


    @Override
    public void doOut(
        ArtifactAndFacet artifactFacet,
        ThemeDocument    attr,
        boolean          visible
    ) {
        logger.debug("DischargeLongitudinalSectionGenerator.doOut");

        String name = artifactFacet.getFacetName();

        if (name == null) {
            return;
        }

        Facet facet = artifactFacet.getFacet();

        if (name.equals(DISCHARGE_LONGITUDINAL_C)) {
            doCorrectedWOut(
                (WQCKms) artifactFacet.getData(context),
                facet,
                attr,
                visible);
        }
        else if (name.equals(LONGITUDINAL_ANNOTATION)) {
            doAnnotations((RiverAnnotation) artifactFacet.getData(context),
                 artifactFacet, attr, visible);
        }
        else if (FacetTypes.IS.MANUALPOINTS(name)) {
            doPoints(artifactFacet.getData(context),
                artifactFacet,
                attr, visible, YAXIS.W.idx);
        }
        else {
            Processor processor = new WOutProcessor();
            Processor qProcessor = new QOutProcessor();
            if (processor.canHandle(name)) {
                processor.doOut(this, artifactFacet, attr, visible, YAXIS.W.idx);
            }
            else if (qProcessor.canHandle(name)) {
                qProcessor.doOut(this, artifactFacet, attr, visible, YAXIS.Q.idx);
            }
            else {
                logger.warn("Unknown facet name: " + name);
            }
        }
    }


    /**
     * Adds a new series for the corrected W curve.
     *
     * @param wqckms The object that contains the corrected W values.
     * @param theme The theme that contains styling information.
     */
    protected void doCorrectedWOut(
        WQCKms        wqckms,
        Facet         facet,
        ThemeDocument theme,
        boolean       visible
    ) {
        logger.debug("DischargeLongitudinalSectionGenerator.doCorrectedWOut");

        int size = wqckms.size();

        if (size > 0) {
            XYSeries series = new StyledXYSeries(
                facet.getDescription(),
                theme);

            for (int i = 0; i < size; i++) {
                series.add(wqckms.getKm(i), wqckms.getC(i));
            }

            addAxisSeries(series, YAXIS.W.idx, visible);
        }

        if (wqckms.guessWaterIncreasing()) {
            setInverted(true);
        }
    }
}
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