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   1 /**
   2  * Copyright (c) 2010-2020 Contributors to the openHAB project
   3  *
   4  * See the NOTICE file(s) distributed with this work for additional
   5  * information.
   6  *
   7  * This program and the accompanying materials are made available under the
   8  * terms of the Eclipse Public License 2.0 which is available at
   9  * http://www.eclipse.org/legal/epl-2.0
  10  *
  11  * SPDX-License-Identifier: EPL-2.0
  12  */
  13 package org.openhab.binding.vigicrues.internal.handler;
  14
  15 import static org.openhab.binding.vigicrues.internal.VigiCruesBindingConstants.*;
  16
  17 import java.io.IOException;
  18 import java.io.InputStream;
  19 import java.time.ZonedDateTime;
  20 import java.util.ArrayList;
  21 import java.util.HashMap;
  22 import java.util.List;
  23 import java.util.Locale;
  24 import java.util.Map;
  25 import java.util.concurrent.ScheduledFuture;
  26 import java.util.concurrent.TimeUnit;
  27 import java.util.stream.Collectors;
  28
  29 import javax.measure.Unit;
  30
  31 import org.eclipse.jdt.annotation.NonNullByDefault;
  32 import org.eclipse.jdt.annotation.Nullable;
  33 import org.openhab.binding.vigicrues.internal.StationConfiguration;
  34 import org.openhab.binding.vigicrues.internal.api.ApiHandler;
  35 import org.openhab.binding.vigicrues.internal.api.VigiCruesException;
  36 import org.openhab.binding.vigicrues.internal.dto.hubeau.HubEauResponse;
  37 import org.openhab.binding.vigicrues.internal.dto.opendatasoft.OpenDatasoftResponse;
  38 import org.openhab.binding.vigicrues.internal.dto.vigicrues.CdStationHydro;
  39 import org.openhab.binding.vigicrues.internal.dto.vigicrues.InfoVigiCru;
  40 import org.openhab.binding.vigicrues.internal.dto.vigicrues.TerEntVigiCru;
  41 import org.openhab.binding.vigicrues.internal.dto.vigicrues.TronEntVigiCru;
  42 import org.openhab.binding.vigicrues.internal.dto.vigicrues.VicANMoinsUn;
  43 import org.openhab.core.i18n.LocationProvider;
  44 import org.openhab.core.library.types.DateTimeType;
  45 import org.openhab.core.library.types.DecimalType;
  46 import org.openhab.core.library.types.PointType;
  47 import org.openhab.core.library.types.QuantityType;
  48 import org.openhab.core.library.types.RawType;
  49 import org.openhab.core.library.types.StringType;
  50 import org.openhab.core.library.unit.SIUnits;
  51 import org.openhab.core.library.unit.SmartHomeUnits;
  52 import org.openhab.core.thing.Channel;
  53 import org.openhab.core.thing.ChannelUID;
  54 import org.openhab.core.thing.Thing;
  55 import org.openhab.core.thing.ThingStatus;
  56 import org.openhab.core.thing.ThingStatusDetail;
  57 import org.openhab.core.thing.binding.BaseThingHandler;
  58 import org.openhab.core.thing.binding.builder.ThingBuilder;
  59 import org.openhab.core.types.Command;
  60 import org.openhab.core.types.RefreshType;
  61 import org.openhab.core.types.UnDefType;
  62 import org.slf4j.Logger;
  63 import org.slf4j.LoggerFactory;
  64
  65 /**
  66  * The {@link VigiCruesHandler} is responsible for querying the API and
  67  * updating channels
  68  *
  69  * @author Gaël L'hopital - Initial contribution
  70  */
  71 @NonNullByDefault
  72 public class VigiCruesHandler extends BaseThingHandler {
  73     private final Logger logger = LoggerFactory.getLogger(VigiCruesHandler.class);
  74     private final LocationProvider locationProvider;
  75
  76     private @Nullable ScheduledFuture<?> refreshJob;
  77     private final ApiHandler apiHandler;
  78
  79     private List<QuantityType<?>> referenceHeights = new ArrayList<>();
  80     private List<QuantityType<?>> referenceFlows = new ArrayList<>();
  81     private @Nullable String portion;
  82
  83     public VigiCruesHandler(Thing thing, LocationProvider locationProvider, ApiHandler apiHandler) {
  84         super(thing);
  85         this.apiHandler = apiHandler;
  86         this.locationProvider = locationProvider;
  87     }
  88
  89     @Override
  90     public void initialize() {
  91         logger.debug("Initializing VigiCrues handler.");
  92
  93         StationConfiguration config = getConfigAs(StationConfiguration.class);
  94         logger.debug("config refresh = {} min", config.refresh);
  95
  96         updateStatus(ThingStatus.UNKNOWN);
  97
  98         if (thing.getProperties().isEmpty()) {
  99             Map<String, String> properties = discoverAttributes(config);
 100             updateProperties(properties);
 101         }
 102         getReferences();
 103         refreshJob = scheduler.scheduleWithFixedDelay(this::updateAndPublish, 0, config.refresh, TimeUnit.MINUTES);
 104     }
 105
 106     private void getReferences() {
 107         List<QuantityType<?>> heights = new ArrayList<>();
 108         List<QuantityType<?>> flows = new ArrayList<>();
 109         thing.getProperties().keySet().stream().filter(key -> key.startsWith(FLOOD)).forEach(key -> {
 110             String value = thing.getProperties().get(key);
 111             if (value != null) {
 112                 if (key.contains(FLOW)) {
 113                     flows.add(new QuantityType<>(value));
 114                 } else {
 115                     heights.add(new QuantityType<>(value));
 116                 }
 117             }
 118         });
 119         referenceHeights = heights.stream().distinct().sorted().collect(Collectors.toList());
 120         referenceFlows = flows.stream().distinct().sorted().collect(Collectors.toList());
 121         portion = thing.getProperties().get(TRONCON);
 122     }
 123
 124     private Map<String, String> discoverAttributes(StationConfiguration config) {
 125         Map<String, String> properties = new HashMap<>();
 126
 127         ThingBuilder thingBuilder = editThing();
 128         List<Channel> channels = new ArrayList<>(getThing().getChannels());
 129
 130         try {
 131             HubEauResponse stationDetails = apiHandler.discoverStations(config.id);
 132             stationDetails.stations.stream().findFirst().ifPresent(station -> {
 133                 PointType stationLocation = new PointType(
 134                         String.format(Locale.US, "%f,%f", station.latitudeStation, station.longitudeStation));
 135                 properties.put(LOCATION, stationLocation.toString());
 136                 PointType serverLocation = locationProvider.getLocation();
 137                 if (serverLocation != null) {
 138                     DecimalType distance = serverLocation.distanceFrom(stationLocation);
 139                     properties.put(DISTANCE, new QuantityType<>(distance, SIUnits.METRE).toString());
 140                 }
 141                 properties.put(RIVER, station.libelleCoursEau);
 142             });
 143         } catch (VigiCruesException e) {
 144             logger.info("Unable to retrieve station location details {} : {}", config.id, e.getMessage());
 145         }
 146
 147         try {
 148             CdStationHydro refineStation = apiHandler.getStationDetails(config.id);
 149             if (refineStation.vigilanceCrues.cruesHistoriques == null) {
 150                 throw new VigiCruesException("No historical data available");
 151             }
 152             refineStation.vigilanceCrues.cruesHistoriques.stream()
 153                     .forEach(crue -> properties.putAll(crue.getDescription()));
 154             String codeTerritoire = refineStation.vigilanceCrues.pereBoitEntVigiCru.cdEntVigiCru;
 155             TerEntVigiCru territoire = apiHandler.getTerritoire(codeTerritoire);
 156             for (VicANMoinsUn troncon : territoire.vicTerEntVigiCru.vicANMoinsUn) {
 157                 TronEntVigiCru detail = apiHandler.getTroncon(troncon.vicCdEntVigiCru);
 158                 if (detail.getStations().anyMatch(s -> config.id.equalsIgnoreCase(s.vicCdEntVigiCru))) {
 159                     properties.put(TRONCON, troncon.vicCdEntVigiCru);
 160                     break;
 161                 }
 162             }
 163         } catch (VigiCruesException e) {
 164             logger.info("Historical flooding data are not available {} : {}", config.id, e.getMessage());
 165             channels.removeIf(channel -> (channel.getUID().getId().contains(RELATIVE_PREFIX)));
 166         }
 167
 168         if (!properties.containsKey(TRONCON)) {
 169             channels.removeIf(channel -> (channel.getUID().getId().contains(ALERT)));
 170             channels.removeIf(channel -> (channel.getUID().getId().contains(COMMENT)));
 171         }
 172
 173         try {
 174             OpenDatasoftResponse measures = apiHandler.getMeasures(config.id);
 175             measures.getFirstRecord().ifPresent(field -> {
 176                 if (field.getHeight().isEmpty()) {
 177                     channels.removeIf(channel -> (channel.getUID().getId().contains(HEIGHT)));
 178                 }
 179                 if (field.getFlow().isEmpty()) {
 180                     channels.removeIf(channel -> (channel.getUID().getId().contains(FLOW)));
 181                 }
 182             });
 183         } catch (VigiCruesException e) {
 184             logger.warn("Unable to read measurements data {} : {}", config.id, e.getMessage());
 185         }
 186
 187         thingBuilder.withChannels(channels);
 188         updateThing(thingBuilder.build());
 189
 190         return properties;
 191     }
 192
 193     @Override
 194     public void dispose() {
 195         logger.debug("Disposing the VigiCrues handler.");
 196
 197         ScheduledFuture<?> refreshJob = this.refreshJob;
 198         if (refreshJob != null) {
 199             refreshJob.cancel(true);
 200         }
 201         this.refreshJob = null;
 202     }
 203
 204     @Override
 205     public void handleCommand(ChannelUID channelUID, Command command) {
 206         if (command instanceof RefreshType) {
 207             updateAndPublish();
 208         }
 209     }
 210
 211     private void updateAndPublish() {
 212         StationConfiguration config = getConfigAs(StationConfiguration.class);
 213         try {
 214             OpenDatasoftResponse measures = apiHandler.getMeasures(config.id);
 215             measures.getFirstRecord().ifPresent(field -> {
 216                 field.getHeight().ifPresent(height -> {
 217                     updateQuantity(HEIGHT, height, SIUnits.METRE);
 218                     updateRelativeMeasure(RELATIVE_HEIGHT, referenceHeights, height);
 219                 });
 220                 field.getFlow().ifPresent(flow -> {
 221                     updateQuantity(FLOW, flow, SmartHomeUnits.CUBICMETRE_PER_SECOND);
 222                     updateRelativeMeasure(RELATIVE_FLOW, referenceFlows, flow);
 223                 });
 224                 field.getTimestamp().ifPresent(date -> updateDate(OBSERVATION_TIME, date));
 225             });
 226             String currentPortion = this.portion;
 227             if (currentPortion != null) {
 228                 InfoVigiCru status = apiHandler.getTronconStatus(currentPortion);
 229                 updateAlert(ALERT, status.vicInfoVigiCru.vicNivInfoVigiCru - 1);
 230                 updateString(SHORT_COMMENT, status.vicInfoVigiCru.vicSituActuInfoVigiCru);
 231                 updateString(COMMENT, status.vicInfoVigiCru.vicQualifInfoVigiCru);
 232             }
 233             updateStatus(ThingStatus.ONLINE);
 234         } catch (VigiCruesException e) {
 235             updateStatus(ThingStatus.OFFLINE, ThingStatusDetail.COMMUNICATION_ERROR, e.getMessage());
 236         }
 237     }
 238
 239     private void updateString(String channelId, String value) {
 240         if (isLinked(channelId)) {
 241             updateState(channelId, new StringType(value));
 242         }
 243     }
 244
 245     private void updateRelativeMeasure(String channelId, List<QuantityType<?>> reference, double value) {
 246         if (reference.size() > 0) {
 247             double percent = value / reference.get(0).doubleValue() * 100;
 248             updateQuantity(channelId, percent, SmartHomeUnits.PERCENT);
 249         }
 250     }
 251
 252     private void updateQuantity(String channelId, Double value, Unit<?> unit) {
 253         if (isLinked(channelId)) {
 254             updateState(channelId, new QuantityType<>(value, unit));
 255         }
 256     }
 257
 258     public void updateDate(String channelId, ZonedDateTime zonedDateTime) {
 259         if (isLinked(channelId)) {
 260             updateState(channelId, new DateTimeType(zonedDateTime));
 261         }
 262     }
 263
 264     public void updateAlert(String channelId, int value) {
 265         String channelIcon = channelId + "-icon";
 266         if (isLinked(channelId)) {
 267             updateState(channelId, new DecimalType(value));
 268         }
 269         if (isLinked(channelIcon)) {
 270             byte[] resource = getResource(String.format("picto/crue-%d.svg", value));
 271             updateState(channelIcon, resource != null ? new RawType(resource, "image/svg+xml") : UnDefType.UNDEF);
 272         }
 273     }
 274
 275     public byte @Nullable [] getResource(String iconPath) {
 276         try (InputStream stream = VigiCruesHandler.class.getClassLoader().getResourceAsStream(iconPath)) {
 277             return stream.readAllBytes();
 278         } catch (IOException e) {
 279             logger.warn("Unable to load ressource '{}' : {}", iconPath, e.getMessage());
 280         }
 281         return null;
 282     }
 283 }