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   1 /**
   2  * Copyright (c) 2010-2022 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.hue.internal.handler;
  14
  15 import static org.openhab.binding.hue.internal.HueBindingConstants.*;
  16
  17 import java.math.BigDecimal;
  18 import java.util.List;
  19 import java.util.Map;
  20 import java.util.Objects;
  21 import java.util.Set;
  22 import java.util.concurrent.ScheduledFuture;
  23 import java.util.concurrent.TimeUnit;
  24 import java.util.stream.Collectors;
  25
  26 import org.eclipse.jdt.annotation.NonNullByDefault;
  27 import org.eclipse.jdt.annotation.Nullable;
  28 import org.openhab.binding.hue.internal.FullGroup;
  29 import org.openhab.binding.hue.internal.Scene;
  30 import org.openhab.binding.hue.internal.State;
  31 import org.openhab.binding.hue.internal.StateUpdate;
  32 import org.openhab.binding.hue.internal.dto.ColorTemperature;
  33 import org.openhab.core.library.types.DecimalType;
  34 import org.openhab.core.library.types.HSBType;
  35 import org.openhab.core.library.types.IncreaseDecreaseType;
  36 import org.openhab.core.library.types.OnOffType;
  37 import org.openhab.core.library.types.PercentType;
  38 import org.openhab.core.library.types.StringType;
  39 import org.openhab.core.thing.Bridge;
  40 import org.openhab.core.thing.ChannelUID;
  41 import org.openhab.core.thing.Thing;
  42 import org.openhab.core.thing.ThingStatus;
  43 import org.openhab.core.thing.ThingStatusDetail;
  44 import org.openhab.core.thing.ThingStatusInfo;
  45 import org.openhab.core.thing.ThingTypeUID;
  46 import org.openhab.core.thing.binding.BaseThingHandler;
  47 import org.openhab.core.thing.binding.ThingHandler;
  48 import org.openhab.core.types.Command;
  49 import org.openhab.core.types.StateOption;
  50 import org.slf4j.Logger;
  51 import org.slf4j.LoggerFactory;
  52
  53 /**
  54  * {@link HueGroupHandler} is the handler for a hue group of lights. It uses the {@link HueClient} to execute the
  55  * actual command.
  56  *
  57  * @author Laurent Garnier - Initial contribution
  58  */
  59 @NonNullByDefault
  60 public class HueGroupHandler extends BaseThingHandler implements HueLightActionsHandler, GroupStatusListener {
  61
  62     public static final Set<ThingTypeUID> SUPPORTED_THING_TYPES = Set.of(THING_TYPE_GROUP);
  63     public static final String PROPERTY_MEMBERS = "members";
  64
  65     private final Logger logger = LoggerFactory.getLogger(HueGroupHandler.class);
  66     private final HueStateDescriptionProvider stateDescriptionOptionProvider;
  67
  68     private @NonNullByDefault({}) String groupId;
  69
  70     private @Nullable Integer lastSentColorTemp;
  71     private @Nullable Integer lastSentBrightness;
  72
  73     private ColorTemperature colorTemperatureCapabilties = new ColorTemperature();
  74     private long defaultFadeTime = 400;
  75
  76     private @Nullable HueClient hueClient;
  77
  78     private @Nullable ScheduledFuture<?> scheduledFuture;
  79     private @Nullable FullGroup lastFullGroup;
  80
  81     private List<String> consoleScenesList = List.of();
  82
  83     public HueGroupHandler(Thing thing, HueStateDescriptionProvider stateDescriptionOptionProvider) {
  84         super(thing);
  85         this.stateDescriptionOptionProvider = stateDescriptionOptionProvider;
  86     }
  87
  88     @Override
  89     public void initialize() {
  90         logger.debug("Initializing hue group handler.");
  91         Bridge bridge = getBridge();
  92         initializeThing((bridge == null) ? null : bridge.getStatus());
  93     }
  94
  95     @Override
  96     public void bridgeStatusChanged(ThingStatusInfo bridgeStatusInfo) {
  97         logger.debug("bridgeStatusChanged {}", bridgeStatusInfo);
  98         initializeThing(bridgeStatusInfo.getStatus());
  99     }
 100
 101     private void initializeThing(@Nullable ThingStatus bridgeStatus) {
 102         logger.debug("initializeThing thing {} bridge status {}", getThing().getUID(), bridgeStatus);
 103         final String configGroupId = (String) getConfig().get(GROUP_ID);
 104         if (configGroupId != null) {
 105             BigDecimal time = (BigDecimal) getConfig().get(FADETIME);
 106             if (time != null) {
 107                 defaultFadeTime = time.longValueExact();
 108             }
 109
 110             groupId = configGroupId;
 111             // note: this call implicitly registers our handler as a listener on the bridge
 112             if (getHueClient() != null) {
 113                 if (bridgeStatus == ThingStatus.ONLINE) {
 114                     updateStatus(ThingStatus.ONLINE);
 115                 } else {
 116                     updateStatus(ThingStatus.OFFLINE, ThingStatusDetail.BRIDGE_OFFLINE);
 117                 }
 118             } else {
 119                 updateStatus(ThingStatus.OFFLINE, ThingStatusDetail.BRIDGE_UNINITIALIZED);
 120             }
 121         } else {
 122             updateStatus(ThingStatus.OFFLINE, ThingStatusDetail.CONFIGURATION_ERROR,
 123                     "@text/offline.conf-error-no-group-id");
 124         }
 125     }
 126
 127     private synchronized void initializeProperties(@Nullable FullGroup fullGroup) {
 128         if (fullGroup != null) {
 129             Map<String, String> properties = editProperties();
 130             properties.put(PROPERTY_MEMBERS, fullGroup.getLightIds().stream().collect(Collectors.joining(",")));
 131             updateProperties(properties);
 132         }
 133     }
 134
 135     @Override
 136     public void dispose() {
 137         logger.debug("Hue group handler disposes. Unregistering listener.");
 138         cancelScheduledFuture();
 139         if (groupId != null) {
 140             HueClient bridgeHandler = getHueClient();
 141             if (bridgeHandler != null) {
 142                 bridgeHandler.unregisterGroupStatusListener(this);
 143                 hueClient = null;
 144             }
 145             groupId = null;
 146         }
 147     }
 148
 149     protected synchronized @Nullable HueClient getHueClient() {
 150         if (hueClient == null) {
 151             Bridge bridge = getBridge();
 152             if (bridge == null) {
 153                 return null;
 154             }
 155             ThingHandler handler = bridge.getHandler();
 156             if (handler instanceof HueBridgeHandler) {
 157                 HueClient bridgeHandler = (HueClient) handler;
 158                 hueClient = bridgeHandler;
 159                 bridgeHandler.registerGroupStatusListener(this);
 160             } else {
 161                 return null;
 162             }
 163         }
 164         return hueClient;
 165     }
 166
 167     @Override
 168     public void handleCommand(ChannelUID channelUID, Command command) {
 169         handleCommand(channelUID.getId(), command, defaultFadeTime);
 170     }
 171
 172     @Override
 173     public void handleCommand(String channel, Command command, long fadeTime) {
 174         HueClient bridgeHandler = getHueClient();
 175         if (bridgeHandler == null) {
 176             logger.debug("hue bridge handler not found. Cannot handle command without bridge.");
 177             return;
 178         }
 179
 180         FullGroup group = bridgeHandler.getGroupById(groupId);
 181         if (group == null) {
 182             logger.debug("hue group not known on bridge. Cannot handle command.");
 183             updateStatus(ThingStatus.OFFLINE, ThingStatusDetail.CONFIGURATION_ERROR,
 184                     "@text/offline.conf-error-wrong-group-id");
 185             return;
 186         }
 187
 188         Integer lastColorTemp;
 189         StateUpdate newState = null;
 190         switch (channel) {
 191             case CHANNEL_COLOR:
 192                 if (command instanceof HSBType) {
 193                     HSBType hsbCommand = (HSBType) command;
 194                     if (hsbCommand.getBrightness().intValue() == 0) {
 195                         newState = LightStateConverter.toOnOffLightState(OnOffType.OFF);
 196                     } else {
 197                         newState = LightStateConverter.toColorLightState(hsbCommand, group.getState());
 198                         newState.setOn(true);
 199                         newState.setTransitionTime(fadeTime);
 200                     }
 201                 } else if (command instanceof PercentType) {
 202                     newState = LightStateConverter.toBrightnessLightState((PercentType) command);
 203                     newState.setTransitionTime(fadeTime);
 204                 } else if (command instanceof OnOffType) {
 205                     newState = LightStateConverter.toOnOffLightState((OnOffType) command);
 206                 } else if (command instanceof IncreaseDecreaseType) {
 207                     newState = convertBrightnessChangeToStateUpdate((IncreaseDecreaseType) command, group);
 208                     if (newState != null) {
 209                         newState.setTransitionTime(fadeTime);
 210                     }
 211                 }
 212                 break;
 213             case CHANNEL_COLORTEMPERATURE:
 214                 if (command instanceof PercentType) {
 215                     newState = LightStateConverter.toColorTemperatureLightStateFromPercentType((PercentType) command,
 216                             colorTemperatureCapabilties);
 217                     newState.setTransitionTime(fadeTime);
 218                 } else if (command instanceof OnOffType) {
 219                     newState = LightStateConverter.toOnOffLightState((OnOffType) command);
 220                 } else if (command instanceof IncreaseDecreaseType) {
 221                     newState = convertColorTempChangeToStateUpdate((IncreaseDecreaseType) command, group);
 222                     if (newState != null) {
 223                         newState.setTransitionTime(fadeTime);
 224                     }
 225                 }
 226                 break;
 227             case CHANNEL_COLORTEMPERATURE_ABS:
 228                 if (command instanceof DecimalType) {
 229                     newState = LightStateConverter.toColorTemperatureLightState((DecimalType) command,
 230                             colorTemperatureCapabilties);
 231                     newState.setTransitionTime(fadeTime);
 232                 }
 233                 break;
 234             case CHANNEL_BRIGHTNESS:
 235                 if (command instanceof PercentType) {
 236                     newState = LightStateConverter.toBrightnessLightState((PercentType) command);
 237                     newState.setTransitionTime(fadeTime);
 238                 } else if (command instanceof OnOffType) {
 239                     newState = LightStateConverter.toOnOffLightState((OnOffType) command);
 240                 } else if (command instanceof IncreaseDecreaseType) {
 241                     newState = convertBrightnessChangeToStateUpdate((IncreaseDecreaseType) command, group);
 242                     if (newState != null) {
 243                         newState.setTransitionTime(fadeTime);
 244                     }
 245                 }
 246                 lastColorTemp = lastSentColorTemp;
 247                 if (newState != null && lastColorTemp != null) {
 248                     // make sure that the light also has the latest color temp
 249                     // this might not have been yet set in the light, if it was off
 250                     newState.setColorTemperature(lastColorTemp, colorTemperatureCapabilties);
 251                     newState.setTransitionTime(fadeTime);
 252                 }
 253                 break;
 254             case CHANNEL_SWITCH:
 255                 if (command instanceof OnOffType) {
 256                     newState = LightStateConverter.toOnOffLightState((OnOffType) command);
 257                 }
 258                 lastColorTemp = lastSentColorTemp;
 259                 if (newState != null && lastColorTemp != null) {
 260                     // make sure that the light also has the latest color temp
 261                     // this might not have been yet set in the light, if it was off
 262                     newState.setColorTemperature(lastColorTemp, colorTemperatureCapabilties);
 263                     newState.setTransitionTime(fadeTime);
 264                 }
 265                 break;
 266             case CHANNEL_ALERT:
 267                 if (command instanceof StringType) {
 268                     newState = LightStateConverter.toAlertState((StringType) command);
 269                     if (newState == null) {
 270                         // Unsupported StringType is passed. Log a warning
 271                         // message and return.
 272                         logger.warn("Unsupported String command: {}. Supported commands are: {}, {}, {} ", command,
 273                                 LightStateConverter.ALERT_MODE_NONE, LightStateConverter.ALERT_MODE_SELECT,
 274                                 LightStateConverter.ALERT_MODE_LONG_SELECT);
 275                         return;
 276                     } else {
 277                         scheduleAlertStateRestore(command);
 278                     }
 279                 }
 280                 break;
 281             case CHANNEL_SCENE:
 282                 if (command instanceof StringType) {
 283                     newState = new StateUpdate().setScene(command.toString());
 284                 }
 285                 break;
 286             default:
 287                 break;
 288         }
 289         if (newState != null) {
 290             cacheNewState(newState);
 291             bridgeHandler.updateGroupState(group, newState, fadeTime);
 292         } else {
 293             logger.debug("Command sent to an unknown channel id: {}:{}", getThing().getUID(), channel);
 294         }
 295     }
 296
 297     /**
 298      * Caches the new state that is sent to the bridge. This is necessary in case the lights are off when the values are
 299      * sent. In this case, the values are not yet set in the lights.
 300      *
 301      * @param newState the state to be cached
 302      */
 303     private void cacheNewState(StateUpdate newState) {
 304         Integer tmpBrightness = newState.getBrightness();
 305         if (tmpBrightness != null) {
 306             lastSentBrightness = tmpBrightness;
 307         }
 308         Integer tmpColorTemp = newState.getColorTemperature();
 309         if (tmpColorTemp != null) {
 310             lastSentColorTemp = tmpColorTemp;
 311         }
 312     }
 313
 314     private @Nullable StateUpdate convertColorTempChangeToStateUpdate(IncreaseDecreaseType command, FullGroup group) {
 315         StateUpdate stateUpdate = null;
 316         Integer currentColorTemp = getCurrentColorTemp(group.getState());
 317         if (currentColorTemp != null) {
 318             int newColorTemp = LightStateConverter.toAdjustedColorTemp(command, currentColorTemp,
 319                     colorTemperatureCapabilties);
 320             stateUpdate = new StateUpdate().setColorTemperature(newColorTemp, colorTemperatureCapabilties);
 321         }
 322         return stateUpdate;
 323     }
 324
 325     private @Nullable Integer getCurrentColorTemp(@Nullable State groupState) {
 326         Integer colorTemp = lastSentColorTemp;
 327         if (colorTemp == null && groupState != null) {
 328             return groupState.getColorTemperature();
 329         }
 330         return colorTemp;
 331     }
 332
 333     private @Nullable StateUpdate convertBrightnessChangeToStateUpdate(IncreaseDecreaseType command, FullGroup group) {
 334         Integer currentBrightness = getCurrentBrightness(group.getState());
 335         if (currentBrightness == null) {
 336             return null;
 337         }
 338         int newBrightness = LightStateConverter.toAdjustedBrightness(command, currentBrightness);
 339         return createBrightnessStateUpdate(currentBrightness, newBrightness);
 340     }
 341
 342     private @Nullable Integer getCurrentBrightness(@Nullable State groupState) {
 343         if (lastSentBrightness == null && groupState != null) {
 344             return groupState.isOn() ? groupState.getBrightness() : 0;
 345         }
 346         return lastSentBrightness;
 347     }
 348
 349     private StateUpdate createBrightnessStateUpdate(int currentBrightness, int newBrightness) {
 350         StateUpdate lightUpdate = new StateUpdate();
 351         if (newBrightness == 0) {
 352             lightUpdate.turnOff();
 353         } else {
 354             lightUpdate.setBrightness(newBrightness);
 355             if (currentBrightness == 0) {
 356                 lightUpdate.turnOn();
 357             }
 358         }
 359         return lightUpdate;
 360     }
 361
 362     @Override
 363     public void channelLinked(ChannelUID channelUID) {
 364         HueClient handler = getHueClient();
 365         if (handler != null) {
 366             FullGroup group = handler.getGroupById(groupId);
 367             if (group != null) {
 368                 onGroupStateChanged(group);
 369             }
 370         }
 371     }
 372
 373     @Override
 374     public boolean onGroupStateChanged(FullGroup group) {
 375         logger.trace("onGroupStateChanged() was called for group {}", group.getId());
 376
 377         State state = group.getState();
 378
 379         final FullGroup lastState = lastFullGroup;
 380         if (lastState == null || !Objects.equals(lastState.getState(), state)) {
 381             lastFullGroup = group;
 382         } else {
 383             return true;
 384         }
 385
 386         logger.trace("New state for group {}", groupId);
 387
 388         initializeProperties(group);
 389
 390         lastSentColorTemp = null;
 391         lastSentBrightness = null;
 392
 393         updateStatus(ThingStatus.ONLINE);
 394
 395         logger.debug("onGroupStateChanged Group {}: on {} bri {} hue {} sat {} temp {} mode {} XY {}", group.getName(),
 396                 state.isOn(), state.getBrightness(), state.getHue(), state.getSaturation(), state.getColorTemperature(),
 397                 state.getColorMode(), state.getXY());
 398
 399         HSBType hsbType = LightStateConverter.toHSBType(state);
 400         if (!state.isOn()) {
 401             hsbType = new HSBType(hsbType.getHue(), hsbType.getSaturation(), PercentType.ZERO);
 402         }
 403         updateState(CHANNEL_COLOR, hsbType);
 404
 405         PercentType brightnessPercentType = state.isOn() ? LightStateConverter.toBrightnessPercentType(state)
 406                 : PercentType.ZERO;
 407         updateState(CHANNEL_BRIGHTNESS, brightnessPercentType);
 408
 409         updateState(CHANNEL_SWITCH, OnOffType.from(state.isOn()));
 410
 411         updateState(CHANNEL_COLORTEMPERATURE,
 412                 LightStateConverter.toColorTemperaturePercentType(state, colorTemperatureCapabilties));
 413         updateState(CHANNEL_COLORTEMPERATURE_ABS, LightStateConverter.toColorTemperature(state));
 414
 415         return true;
 416     }
 417
 418     @Override
 419     public void onGroupAdded(FullGroup group) {
 420         onGroupStateChanged(group);
 421     }
 422
 423     @Override
 424     public void onGroupRemoved() {
 425         updateStatus(ThingStatus.OFFLINE, ThingStatusDetail.NONE, "@text/offline.group-removed");
 426     }
 427
 428     @Override
 429     public void onGroupGone() {
 430         updateStatus(ThingStatus.OFFLINE, ThingStatusDetail.GONE, "@text/offline.group-removed");
 431     }
 432
 433     /**
 434      * Sets the state options for applicable scenes.
 435      */
 436     @Override
 437     public void onScenesUpdated(List<Scene> updatedScenes) {
 438         List<StateOption> stateOptions = List.of();
 439         consoleScenesList = List.of();
 440         HueClient handler = getHueClient();
 441         if (handler != null) {
 442             FullGroup group = handler.getGroupById(groupId);
 443             if (group != null) {
 444                 stateOptions = updatedScenes.stream().filter(scene -> scene.isApplicableTo(group))
 445                         .map(Scene::toStateOption).collect(Collectors.toList());
 446                 consoleScenesList = updatedScenes
 447                         .stream().filter(scene -> scene.isApplicableTo(group)).map(scene -> "Id is \"" + scene.getId()
 448                                 + "\" for scene \"" + scene.toStateOption().getLabel() + "\"")
 449                         .collect(Collectors.toList());
 450             }
 451         }
 452         stateDescriptionOptionProvider.setStateOptions(new ChannelUID(getThing().getUID(), CHANNEL_SCENE),
 453                 stateOptions);
 454     }
 455
 456     /**
 457      * Schedules restoration of the alert item state to {@link LightStateConverter#ALERT_MODE_NONE} after a given time.
 458      * <br>
 459      * Based on the initial command:
 460      * <ul>
 461      * <li>For {@link LightStateConverter#ALERT_MODE_SELECT} restoration will be triggered after <strong>2
 462      * seconds</strong>.
 463      * <li>For {@link LightStateConverter#ALERT_MODE_LONG_SELECT} restoration will be triggered after <strong>15
 464      * seconds</strong>.
 465      * </ul>
 466      * This method also cancels any previously scheduled restoration.
 467      *
 468      * @param command The {@link Command} sent to the item
 469      */
 470     private void scheduleAlertStateRestore(Command command) {
 471         cancelScheduledFuture();
 472         int delay = getAlertDuration(command);
 473
 474         if (delay > 0) {
 475             scheduledFuture = scheduler.schedule(() -> {
 476                 updateState(CHANNEL_ALERT, new StringType(LightStateConverter.ALERT_MODE_NONE));
 477             }, delay, TimeUnit.MILLISECONDS);
 478         }
 479     }
 480
 481     /**
 482      * This method will cancel previously scheduled alert item state
 483      * restoration.
 484      */
 485     private void cancelScheduledFuture() {
 486         ScheduledFuture<?> scheduledJob = scheduledFuture;
 487         if (scheduledJob != null) {
 488             scheduledJob.cancel(true);
 489             scheduledFuture = null;
 490         }
 491     }
 492
 493     /**
 494      * This method returns the time in <strong>milliseconds</strong> after
 495      * which, the state of the alert item has to be restored to {@link LightStateConverter#ALERT_MODE_NONE}.
 496      *
 497      * @param command The initial command sent to the alert item.
 498      * @return Based on the initial command will return:
 499      *         <ul>
 500      *         <li><strong>2000</strong> for {@link LightStateConverter#ALERT_MODE_SELECT}.
 501      *         <li><strong>15000</strong> for {@link LightStateConverter#ALERT_MODE_LONG_SELECT}.
 502      *         <li><strong>-1</strong> for any command different from the previous two.
 503      *         </ul>
 504      */
 505     private int getAlertDuration(Command command) {
 506         int delay;
 507         switch (command.toString()) {
 508             case LightStateConverter.ALERT_MODE_LONG_SELECT:
 509                 delay = 15000;
 510                 break;
 511             case LightStateConverter.ALERT_MODE_SELECT:
 512                 delay = 2000;
 513                 break;
 514             default:
 515                 delay = -1;
 516                 break;
 517         }
 518
 519         return delay;
 520     }
 521
 522     public List<String> listScenesForConsole() {
 523         return consoleScenesList;
 524     }
 525
 526     @Override
 527     public String getGroupId() {
 528         return groupId;
 529     }
 530 }