gernotbelger@8915: /** Copyright (C) 2017 by Bundesanstalt für Gewässerkunde
gernotbelger@8915:  * Software engineering by
gernotbelger@8915:  *  Björnsen Beratende Ingenieure GmbH
gernotbelger@8915:  *  Dr. Schumacher Ingenieurbüro für Wasser und Umwelt
gernotbelger@8915:  *
gernotbelger@8915:  * This file is Free Software under the GNU AGPL (>=v3)
gernotbelger@8915:  * and comes with ABSOLUTELY NO WARRANTY! Check out the
gernotbelger@8915:  * documentation coming with Dive4Elements River for details.
gernotbelger@8915:  */
gernotbelger@8915: package org.dive4elements.river.artifacts.sinfo.common;
gernotbelger@8915: 
gernotbelger@8915: import java.util.List;
gernotbelger@8915: 
gernotbelger@8915: import org.apache.commons.lang.math.DoubleRange;
gernotbelger@8915: import org.dive4elements.artifacts.CallContext;
gernotbelger@8915: import org.dive4elements.river.artifacts.model.LocationProvider;
gernotbelger@8915: import org.dive4elements.river.artifacts.model.WKms;
gernotbelger@8915: import org.dive4elements.river.artifacts.resources.Resources;
gernotbelger@8915: import org.dive4elements.river.artifacts.states.WaterlevelData;
gernotbelger@8915: import org.dive4elements.river.model.Gauge;
gernotbelger@8915: import org.dive4elements.river.model.River;
gernotbelger@8915: import org.dive4elements.river.utils.GaugeIndex;
gernotbelger@8915: 
gernotbelger@8915: /**
gernotbelger@8915:  * @author Gernot Belger
gernotbelger@8915:  *
gernotbelger@8915:  */
gernotbelger@8915: public final class RiverInfoProvider {
gernotbelger@8915: 
gernotbelger@8915:     private static final String CSV_NOT_IN_GAUGE_RANGE = "export.waterlevel.csv.not.in.gauge.range";
gernotbelger@8915: 
gernotbelger@8915:     private final River river;
gernotbelger@8915:     private final GaugeIndex gaugeIndex;
gernotbelger@8915:     private final Gauge refGauge;
gernotbelger@8915:     private final boolean showAllGauges;
gernotbelger@8915:     private final String notinrange;
gernotbelger@8915: 
gernotbelger@8915:     public static RiverInfoProvider forRange(final CallContext context, final River river, final DoubleRange calcRange) {
gernotbelger@8915: 
gernotbelger@8915:         final List<Gauge> gauges = river.determineGauges(calcRange.getMinimumDouble(), calcRange.getMaximumDouble());
gernotbelger@8915:         final GaugeIndex gaugeIndex = new GaugeIndex(gauges);
gernotbelger@8915: 
gernotbelger@8915:         final String notinrange = Resources.getMsg(context.getMeta(), CSV_NOT_IN_GAUGE_RANGE, CSV_NOT_IN_GAUGE_RANGE);
gernotbelger@8915: 
gernotbelger@8915:         return new RiverInfoProvider(notinrange, river, false, gaugeIndex, null);
gernotbelger@8915:     }
gernotbelger@8915: 
gernotbelger@8915:     private RiverInfoProvider(final String notinrange, final River river, final boolean showAllGauges, final GaugeIndex gaugeIndex, final Gauge refGauge) {
gernotbelger@8915:         this.notinrange = notinrange;
gernotbelger@8915:         this.river = river;
gernotbelger@8915:         this.showAllGauges = showAllGauges;
gernotbelger@8915:         this.gaugeIndex = gaugeIndex;
gernotbelger@8915:         this.refGauge = refGauge;
gernotbelger@8915:     }
gernotbelger@8915: 
gernotbelger@8915:     public RiverInfoProvider forWaterlevel(final WaterlevelData waterlevel) {
gernotbelger@8915:         final WKms wstKms = waterlevel.getWkms();
gernotbelger@8915:         final Gauge waterlevelRefGauge = findReferenceGauge(wstKms);
gernotbelger@8915:         final boolean waterlevelShowAllGauges = waterlevel.isShowAllGauges();
gernotbelger@8915: 
gernotbelger@8915:         return new RiverInfoProvider(this.notinrange, this.river, waterlevelShowAllGauges, this.gaugeIndex, waterlevelRefGauge);
gernotbelger@8915:     }
gernotbelger@8915: 
gernotbelger@8915:     /**
gernotbelger@8915:      * Re-determines the reference gauge, in the same way as the WaterlevelArtifact would do it
gernotbelger@8915:      */
gernotbelger@8915:     private Gauge findReferenceGauge(final WKms wkms) {
gernotbelger@8915: 
gernotbelger@8915:         final double[] wstFromTo = findWstFromTo(wkms);
gernotbelger@8915:         return this.river.determineRefGauge(wstFromTo, true);
gernotbelger@8915:     }
gernotbelger@8915: 
gernotbelger@8915:     private static double[] findWstFromTo(final WKms wkms) {
gernotbelger@8915: 
gernotbelger@8915:         final double from = wkms.getKm(0);
gernotbelger@8915:         final double to = wkms.getKm(wkms.size() - 1);
gernotbelger@8915: 
gernotbelger@8915:         final boolean waterIncreasing = wkms.guessWaterIncreasing();
gernotbelger@8915:         if (waterIncreasing)
gernotbelger@8915:             return new double[] { to, from };
gernotbelger@8915: 
gernotbelger@8915:         return new double[] { from, to };
gernotbelger@8915:     }
gernotbelger@8915: 
gernotbelger@8915:     public String getLocation(final double km) {
gernotbelger@8915:         return LocationProvider.getLocation(this.river.getName(), km);
gernotbelger@8915:     }
gernotbelger@8915: 
gernotbelger@8915:     public String findGauge(final double km) {
gernotbelger@8915:         // REMARK: access the gauge once only during calculation
gernotbelger@8915:         final Gauge gauge = getGauge(km);
gernotbelger@8915: 
gernotbelger@8915:         return gauge == null ? this.notinrange : gauge.getName();
gernotbelger@8915:     }
gernotbelger@8915: 
mschaefer@9229:     public String findGauge(final double km, final boolean allGauges) {
mschaefer@9229:         // REMARK: access the gauge once only during calculation
mschaefer@9229:         final Gauge gauge = getGauge(km, allGauges);
mschaefer@9229: 
mschaefer@9229:         return gauge == null ? this.notinrange : gauge.getName();
mschaefer@9229:     }
mschaefer@9229: 
gernotbelger@8915:     private Gauge getGauge(final double km) {
gernotbelger@8915: 
gernotbelger@8915:         // REMARK: using same logic as in WaterlevelExporter here
gernotbelger@8915: 
mschaefer@9158:         return getGauge(km, this.showAllGauges);
mschaefer@9158:     }
mschaefer@9158: 
mschaefer@9158:     public Gauge getGauge(final double km, final boolean allGauges) {
mschaefer@9158:         if (allGauges)
gernotbelger@8915:             return this.gaugeIndex.findGauge(km);
gernotbelger@8915: 
mschaefer@9018:         if ((this.refGauge != null) && this.refGauge.getRange().contains(km))
gernotbelger@8915:             return this.refGauge;
gernotbelger@8915: 
gernotbelger@8915:         return null;
gernotbelger@8915:     }
gernotbelger@8915: 
gernotbelger@8915:     public String getReferenceGauge() {
gernotbelger@8915:         return this.refGauge == null ? this.notinrange : this.refGauge.getName();
gernotbelger@8915:     }
gernotbelger@8915: 
gernotbelger@8915:     public River getRiver() {
gernotbelger@8915:         return this.river;
gernotbelger@8915:     }
gernotbelger@8915: }