package org.dive4elements.river.exports;

import org.apache.log4j.Logger;
import org.jfree.data.xy.XYSeries;
import org.w3c.dom.Document;

import org.dive4elements.artifactdatabase.state.ArtifactAndFacet;
import org.dive4elements.river.artifacts.FLYSArtifact;
import org.dive4elements.river.artifacts.access.HistoricalDischargeAccess;
import org.dive4elements.river.artifacts.model.FacetTypes;
import org.dive4elements.river.artifacts.model.Timerange;
import org.dive4elements.river.artifacts.model.WQKms;

import org.dive4elements.river.jfree.FLYSAnnotation;
import org.dive4elements.river.jfree.StyledValueMarker;
import org.dive4elements.river.jfree.StyledXYSeries;
import org.dive4elements.river.utils.FLYSUtils;


/**
 * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a>
 */
public class HistoricalDischargeWQCurveGenerator
extends      XYChartGenerator
implements   FacetTypes {

    /** Private logger. */
    private static Logger logger = Logger
        .getLogger(HistoricalDischargeWQCurveGenerator.class);

    public static final String I18N_CHART_TITLE = "chart.historical.discharge.wq.title";

    public static final String I18N_CHART_SUBTITLE = "chart.historical.discharge.wq.subtitle";

    public static final String I18N_XAXIS_LABEL = "chart.historical.discharge.wq.xaxis.label";

    public static final String I18N_YAXIS_LABEL = "chart.historical.discharge.wq.yaxis.label";

    /** One Y-Axis only, in this chart. */
    public static enum YAXIS {
        W(0);

        protected int idx;

        private YAXIS(int c) {
            idx = c;
        }
    }

    @Override
    protected YAxisWalker getYAxisWalker() {
        return new YAxisWalker() {

            @Override
            public int length() {
                return YAXIS.values().length;
            }

            @Override
            public String getId(int idx) {
                YAXIS[] yaxes = YAXIS.values();
                return yaxes[idx].toString();
            }
        };
    }

    @Override
    protected String getDefaultChartTitle() {
        return msg(I18N_CHART_TITLE, I18N_CHART_TITLE);
    }

    @Override
    protected String getDefaultChartSubtitle() {
        FLYSArtifact flys = (FLYSArtifact) master;
        Timerange evalTime = new HistoricalDischargeAccess(flys)
            .getEvaluationTimerange();

        Object[] args = new Object[] { FLYSUtils.getReferenceGaugeName(flys),
            evalTime.getStart(), evalTime.getEnd() };

        return msg(I18N_CHART_SUBTITLE, "", args);
    }

    @Override
    protected String getDefaultXAxisLabel() {
        return msg(I18N_XAXIS_LABEL, I18N_XAXIS_LABEL);
    }

    @Override
    protected String getDefaultYAxisLabel(int pos) {
        if (pos == 0) {
            return msg(I18N_YAXIS_LABEL, I18N_YAXIS_LABEL);
        }
        else {
            return "NO TITLE FOR Y AXIS: " + pos;
        }
    }

    @Override
    public void doOut(ArtifactAndFacet artifactFacet, Document theme,
        boolean visible) {
        String name = artifactFacet.getFacetName();
        logger.debug("HistoricalDischargeWQCurveGenerator.doOut: " + name);
        logger.debug("Theme description is: "
            + artifactFacet.getFacetDescription());

        if (name.equals(HISTORICAL_DISCHARGE_WQ_Q)) {
            doHistoricalDischargeOutQ(
                (FLYSArtifact) artifactFacet.getArtifact(),
                artifactFacet.getData(context),
                artifactFacet.getFacetDescription(), theme, visible);
        }
        else if (name.equals(HISTORICAL_DISCHARGE_WQ_W)) {
            doHistoricalDischargeOutW(
                (FLYSArtifact) artifactFacet.getArtifact(),
                artifactFacet.getData(context),
                artifactFacet.getFacetDescription(), theme, visible);
        }
        else if (name.equals(HISTORICAL_DISCHARGE_WQ_CURVE)) {
            doHistoricalDischargeCurveOut(
                (FLYSArtifact) artifactFacet.getArtifact(),
                artifactFacet.getData(context),
                artifactFacet.getFacetDescription(), theme, visible);
        }
        else if (FacetTypes.IS.MANUALPOINTS(name)) {
            doPoints(artifactFacet.getData(context), artifactFacet, theme,
                visible, YAXIS.W.idx);
        }
        else if (HISTORICAL_DISCHARGE_MAINVALUES_Q.equals(name)) {
            doAnnotations((FLYSAnnotation)
                artifactFacet.getData(context), artifactFacet, theme, visible);
        }
        else if (HISTORICAL_DISCHARGE_MAINVALUES_W.equals(name)) {
            doAnnotations((FLYSAnnotation)
                artifactFacet.getData(context), artifactFacet, theme, visible);
        }
        else {
            logger.warn("doOut(): unknown facet name: " + name);
            return;
        }
    }

    protected void doHistoricalDischargeOutQ(FLYSArtifact artifact,
        Object data, String desc, Document theme, boolean visible) {
        double value = Double.valueOf(data.toString());
        addDomainMarker(new StyledValueMarker(value, theme), visible);
    }

    protected void doHistoricalDischargeOutW(FLYSArtifact artifact,
        Object data, String desc, Document theme, boolean visible) {
        double value = Double.valueOf(data.toString());
        addValueMarker(new StyledValueMarker(value, theme), visible);
    }

    protected void doHistoricalDischargeCurveOut(FLYSArtifact artifact,
        Object data, String desc, Document theme, boolean visible) {
        XYSeries series = new StyledXYSeries(desc, theme);
        StyledSeriesBuilder.addPointsQW(series, (WQKms) data);

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