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   1 /**
   2  * Copyright (c) 2010-2021 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.miio.internal.handler;
  14
  15 import static org.openhab.binding.miio.internal.MiIoBindingConstants.*;
  16
  17 import java.awt.Color;
  18 import java.io.IOException;
  19 import java.net.URL;
  20 import java.util.ArrayList;
  21 import java.util.HashMap;
  22 import java.util.LinkedHashSet;
  23 import java.util.List;
  24 import java.util.Map;
  25 import java.util.Map.Entry;
  26 import java.util.Set;
  27 import java.util.concurrent.TimeUnit;
  28
  29 import javax.measure.Unit;
  30 import javax.measure.format.MeasurementParseException;
  31
  32 import org.eclipse.jdt.annotation.NonNullByDefault;
  33 import org.eclipse.jdt.annotation.Nullable;
  34 import org.openhab.binding.miio.internal.MiIoBindingConfiguration;
  35 import org.openhab.binding.miio.internal.MiIoCommand;
  36 import org.openhab.binding.miio.internal.MiIoQuantiyTypes;
  37 import org.openhab.binding.miio.internal.MiIoSendCommand;
  38 import org.openhab.binding.miio.internal.Utils;
  39 import org.openhab.binding.miio.internal.basic.ActionConditions;
  40 import org.openhab.binding.miio.internal.basic.BasicChannelTypeProvider;
  41 import org.openhab.binding.miio.internal.basic.CommandParameterType;
  42 import org.openhab.binding.miio.internal.basic.Conversions;
  43 import org.openhab.binding.miio.internal.basic.MiIoBasicChannel;
  44 import org.openhab.binding.miio.internal.basic.MiIoBasicDevice;
  45 import org.openhab.binding.miio.internal.basic.MiIoDatabaseWatchService;
  46 import org.openhab.binding.miio.internal.basic.MiIoDeviceAction;
  47 import org.openhab.binding.miio.internal.basic.MiIoDeviceActionCondition;
  48 import org.openhab.binding.miio.internal.cloud.CloudConnector;
  49 import org.openhab.binding.miio.internal.transport.MiIoAsyncCommunication;
  50 import org.openhab.core.cache.ExpiringCache;
  51 import org.openhab.core.library.types.DecimalType;
  52 import org.openhab.core.library.types.HSBType;
  53 import org.openhab.core.library.types.OnOffType;
  54 import org.openhab.core.library.types.PercentType;
  55 import org.openhab.core.library.types.QuantityType;
  56 import org.openhab.core.library.types.StringType;
  57 import org.openhab.core.library.unit.SIUnits;
  58 import org.openhab.core.library.unit.Units;
  59 import org.openhab.core.thing.Channel;
  60 import org.openhab.core.thing.ChannelUID;
  61 import org.openhab.core.thing.Thing;
  62 import org.openhab.core.thing.binding.builder.ChannelBuilder;
  63 import org.openhab.core.thing.binding.builder.ThingBuilder;
  64 import org.openhab.core.thing.type.ChannelTypeRegistry;
  65 import org.openhab.core.thing.type.ChannelTypeUID;
  66 import org.openhab.core.types.Command;
  67 import org.openhab.core.types.RefreshType;
  68 import org.slf4j.Logger;
  69 import org.slf4j.LoggerFactory;
  70
  71 import com.google.gson.Gson;
  72 import com.google.gson.GsonBuilder;
  73 import com.google.gson.JsonArray;
  74 import com.google.gson.JsonElement;
  75 import com.google.gson.JsonIOException;
  76 import com.google.gson.JsonObject;
  77 import com.google.gson.JsonParser;
  78 import com.google.gson.JsonPrimitive;
  79 import com.google.gson.JsonSyntaxException;
  80
  81 /**
  82  * The {@link MiIoBasicHandler} is responsible for handling commands, which are
  83  * sent to one of the channels.
  84  *
  85  * @author Marcel Verpaalen - Initial contribution
  86  */
  87 @NonNullByDefault
  88 public class MiIoBasicHandler extends MiIoAbstractHandler {
  89     private final Logger logger = LoggerFactory.getLogger(MiIoBasicHandler.class);
  90     private boolean hasChannelStructure;
  91
  92     private final ExpiringCache<Boolean> updateDataCache = new ExpiringCache<>(CACHE_EXPIRY, () -> {
  93         miIoScheduler.schedule(this::updateData, 0, TimeUnit.SECONDS);
  94         return true;
  95     });
  96
  97     List<MiIoBasicChannel> refreshList = new ArrayList<>();
  98     private Map<String, MiIoBasicChannel> refreshListCustomCommands = new HashMap<>();
  99
 100     private @Nullable MiIoBasicDevice miioDevice;
 101     private Map<ChannelUID, MiIoBasicChannel> actions = new HashMap<>();
 102     private ChannelTypeRegistry channelTypeRegistry;
 103     private BasicChannelTypeProvider basicChannelTypeProvider;
 104
 105     public MiIoBasicHandler(Thing thing, MiIoDatabaseWatchService miIoDatabaseWatchService,
 106             CloudConnector cloudConnector, ChannelTypeRegistry channelTypeRegistry,
 107             BasicChannelTypeProvider basicChannelTypeProvider) {
 108         super(thing, miIoDatabaseWatchService, cloudConnector);
 109         this.channelTypeRegistry = channelTypeRegistry;
 110         this.basicChannelTypeProvider = basicChannelTypeProvider;
 111     }
 112
 113     @Override
 114     public void initialize() {
 115         super.initialize();
 116         hasChannelStructure = false;
 117         isIdentified = false;
 118         refreshList = new ArrayList<>();
 119         refreshListCustomCommands = new HashMap<>();
 120     }
 121
 122     @Override
 123     public void handleCommand(ChannelUID channelUID, Command receivedCommand) {
 124         Command command = receivedCommand;
 125         if (command == RefreshType.REFRESH) {
 126             if (updateDataCache.isExpired()) {
 127                 logger.debug("Refreshing {}", channelUID);
 128                 updateDataCache.getValue();
 129             } else {
 130                 logger.debug("Refresh {} skipped. Already refreshing", channelUID);
 131             }
 132             return;
 133         }
 134         if (handleCommandsChannels(channelUID, command)) {
 135             forceStatusUpdate();
 136             return;
 137         }
 138         logger.debug("Locating action for {} channel '{}': '{}'", getThing().getUID(), channelUID.getId(), command);
 139         if (!actions.isEmpty()) {
 140             final MiIoBasicChannel miIoBasicChannel = actions.get(channelUID);
 141             if (miIoBasicChannel != null) {
 142                 int valuePos = 0;
 143                 for (MiIoDeviceAction action : miIoBasicChannel.getActions()) {
 144                     @Nullable
 145                     JsonElement value = null;
 146                     JsonArray parameters = action.getParameters().deepCopy();
 147                     for (int i = 0; i < action.getParameters().size(); i++) {
 148                         JsonElement p = action.getParameters().get(i);
 149                         if (p.isJsonPrimitive() && p.getAsString().toLowerCase().contains("$value$")) {
 150                             valuePos = i;
 151                             break;
 152                         }
 153                     }
 154                     String cmd = action.getCommand();
 155                     CommandParameterType paramType = action.getparameterType();
 156                     if (command instanceof QuantityType) {
 157                         QuantityType<?> qtc = null;
 158                         try {
 159                             if (!miIoBasicChannel.getUnit().isBlank()) {
 160                                 Unit<?> unit = MiIoQuantiyTypes.get(miIoBasicChannel.getUnit());
 161                                 if (unit != null) {
 162                                     qtc = ((QuantityType<?>) command).toUnit(unit);
 163                                 }
 164                             }
 165                         } catch (MeasurementParseException e) {
 166                             // swallow
 167                         }
 168                         if (qtc != null) {
 169                             command = new DecimalType(qtc.toBigDecimal());
 170                         } else {
 171                             logger.debug("Could not convert QuantityType to '{}'", miIoBasicChannel.getUnit());
 172                             command = new DecimalType(((QuantityType<?>) command).toBigDecimal());
 173                         }
 174                     }
 175                     if (paramType == CommandParameterType.COLOR) {
 176                         if (command instanceof HSBType) {
 177                             HSBType hsb = (HSBType) command;
 178                             Color color = Color.getHSBColor(hsb.getHue().floatValue() / 360,
 179                                     hsb.getSaturation().floatValue() / 100, hsb.getBrightness().floatValue() / 100);
 180                             value = new JsonPrimitive(
 181                                     (color.getRed() << 16) + (color.getGreen() << 8) + color.getBlue());
 182                         } else if (command instanceof DecimalType) {
 183                             // actually brightness is being set instead of a color
 184                             value = new JsonPrimitive(((DecimalType) command).toBigDecimal());
 185                         } else if (command instanceof OnOffType) {
 186                             value = new JsonPrimitive(command == OnOffType.ON ? 100 : 0);
 187                         } else {
 188                             logger.debug("Unsupported command for COLOR: {}", command);
 189                         }
 190                     } else if (command instanceof OnOffType) {
 191                         if (paramType == CommandParameterType.ONOFF) {
 192                             value = new JsonPrimitive(command == OnOffType.ON ? "on" : "off");
 193                         } else if (paramType == CommandParameterType.ONOFFPARA) {
 194                             cmd = cmd.replace("*", command == OnOffType.ON ? "on" : "off");
 195                             value = new JsonArray();
 196                         } else if (paramType == CommandParameterType.ONOFFBOOL) {
 197                             boolean boolCommand = command == OnOffType.ON;
 198                             value = new JsonPrimitive(boolCommand);
 199                         } else if (paramType == CommandParameterType.ONOFFBOOLSTRING) {
 200                             value = new JsonPrimitive(command == OnOffType.ON ? "true" : "false");
 201                         } else if (paramType == CommandParameterType.ONOFFNUMBER) {
 202                             value = new JsonPrimitive(command == OnOffType.ON ? 1 : 0);
 203                         }
 204                     } else if (command instanceof DecimalType) {
 205                         value = new JsonPrimitive(((DecimalType) command).toBigDecimal());
 206                     } else if (command instanceof StringType) {
 207                         if (paramType == CommandParameterType.STRING) {
 208                             value = new JsonPrimitive(command.toString().toLowerCase());
 209                         } else if (paramType == CommandParameterType.CUSTOMSTRING) {
 210                             value = new JsonPrimitive(parameters.get(valuePos).getAsString().replace("$value",
 211                                     command.toString().toLowerCase()));
 212                         }
 213                     } else {
 214                         value = new JsonPrimitive(command.toString().toLowerCase());
 215                     }
 216                     if (paramType == CommandParameterType.EMPTY) {
 217                         value = new JsonArray();
 218                     }
 219                     final MiIoDeviceActionCondition miIoDeviceActionCondition = action.getCondition();
 220                     if (miIoDeviceActionCondition != null) {
 221                         value = ActionConditions.executeAction(miIoDeviceActionCondition, deviceVariables, value,
 222                                 command);
 223                     }
 224                     // Check for miot channel
 225                     if (value != null) {
 226                         if (action.isMiOtAction()) {
 227                             value = miotActionTransform(action, miIoBasicChannel, value);
 228                         } else if (miIoBasicChannel.isMiOt()) {
 229                             value = miotTransform(miIoBasicChannel, value);
 230                         }
 231                     }
 232                     if (paramType != CommandParameterType.NONE && paramType != CommandParameterType.ONOFFPARA
 233                             && value != null) {
 234                         if (parameters.size() > 0) {
 235                             parameters.set(valuePos, value);
 236                         } else {
 237                             parameters.add(value);
 238                         }
 239                     }
 240                     if (action.isMiOtAction() && parameters.size() > 0 && parameters.get(0).isJsonObject()) {
 241                         // hack as unlike any other commands miot actions parameters appear to be send as a json object
 242                         // instead of a json array
 243                         cmd = cmd + parameters.get(0).getAsJsonObject().toString();
 244                     } else {
 245                         cmd = cmd + parameters.toString();
 246                     }
 247                     if (value != null) {
 248                         logger.debug("Sending command {}", cmd);
 249                         sendCommand(cmd);
 250                     } else {
 251                         if (miIoDeviceActionCondition != null) {
 252                             logger.debug("Conditional command {} not send, condition '{}' not met", cmd,
 253                                     miIoDeviceActionCondition.getName());
 254                         } else {
 255                             logger.debug("Command not send. Value null");
 256                         }
 257                     }
 258                 }
 259             } else {
 260                 logger.debug("Channel Id {} not in mapping.", channelUID.getId());
 261                 if (logger.isTraceEnabled()) {
 262                     for (Entry<ChannelUID, MiIoBasicChannel> a : actions.entrySet()) {
 263                         logger.trace("Available entries: {} : {}", a.getKey(), a.getValue().getFriendlyName());
 264                     }
 265                 }
 266             }
 267             forceStatusUpdate();
 268         } else {
 269             logger.debug("Actions not loaded yet, or none available");
 270         }
 271     }
 272
 273     private void forceStatusUpdate() {
 274         updateDataCache.invalidateValue();
 275         miIoScheduler.schedule(() -> {
 276             updateData();
 277         }, 3000, TimeUnit.MILLISECONDS);
 278     }
 279
 280     private @Nullable JsonElement miotTransform(MiIoBasicChannel miIoBasicChannel, @Nullable JsonElement value) {
 281         JsonObject json = new JsonObject();
 282         json.addProperty("did", miIoBasicChannel.getChannel());
 283         json.addProperty("siid", miIoBasicChannel.getSiid());
 284         json.addProperty("piid", miIoBasicChannel.getPiid());
 285         json.add("value", value);
 286         return json;
 287     }
 288
 289     private @Nullable JsonElement miotActionTransform(MiIoDeviceAction action, MiIoBasicChannel miIoBasicChannel,
 290             @Nullable JsonElement value) {
 291         JsonObject json = new JsonObject();
 292         json.addProperty("did", miIoBasicChannel.getChannel());
 293         json.addProperty("siid", action.getSiid());
 294         json.addProperty("aiid", action.getAiid());
 295         if (value != null) {
 296             json.add("in", value);
 297         }
 298         return json;
 299     }
 300
 301     @Override
 302     protected synchronized void updateData() {
 303         logger.debug("Periodic update for '{}' ({})", getThing().getUID().toString(), getThing().getThingTypeUID());
 304         final MiIoAsyncCommunication miioCom = getConnection();
 305         try {
 306             if (!hasConnection() || skipUpdate() || miioCom == null) {
 307                 return;
 308             }
 309             checkChannelStructure();
 310             if (!isIdentified) {
 311                 sendCommand(MiIoCommand.MIIO_INFO);
 312             }
 313             final MiIoBasicDevice midevice = miioDevice;
 314             if (midevice != null) {
 315                 refreshProperties(midevice);
 316                 refreshCustomProperties(midevice);
 317                 refreshNetwork();
 318             }
 319         } catch (Exception e) {
 320             logger.debug("Error while updating '{}': ", getThing().getUID().toString(), e);
 321         }
 322     }
 323
 324     private void refreshCustomProperties(MiIoBasicDevice midevice) {
 325         for (MiIoBasicChannel miChannel : refreshListCustomCommands.values()) {
 326             if (!isLinked(miChannel.getChannel())) {
 327                 logger.debug("Skip refresh of channel {} for {} as it is not linked", miChannel.getChannel(),
 328                         getThing().getUID());
 329                 continue;
 330             }
 331             sendCommand(miChannel.getChannelCustomRefreshCommand());
 332         }
 333     }
 334
 335     private boolean refreshProperties(MiIoBasicDevice device) {
 336         MiIoCommand command = MiIoCommand.getCommand(device.getDevice().getPropertyMethod());
 337         int maxProperties = device.getDevice().getMaxProperties();
 338         JsonArray getPropString = new JsonArray();
 339         for (MiIoBasicChannel miChannel : refreshList) {
 340             if (!isLinked(miChannel.getChannel())) {
 341                 logger.debug("Skip refresh of channel {} for {} as it is not linked", miChannel.getChannel(),
 342                         getThing().getUID());
 343                 continue;
 344             }
 345             JsonElement property;
 346             if (miChannel.isMiOt()) {
 347                 JsonObject json = new JsonObject();
 348                 json.addProperty("did", miChannel.getProperty());
 349                 json.addProperty("siid", miChannel.getSiid());
 350                 json.addProperty("piid", miChannel.getPiid());
 351                 property = json;
 352             } else {
 353                 property = new JsonPrimitive(miChannel.getProperty());
 354             }
 355             getPropString.add(property);
 356             if (getPropString.size() >= maxProperties) {
 357                 sendRefreshProperties(command, getPropString);
 358                 getPropString = new JsonArray();
 359             }
 360         }
 361         if (getPropString.size() > 0) {
 362             sendRefreshProperties(command, getPropString);
 363         }
 364         return true;
 365     }
 366
 367     private void sendRefreshProperties(MiIoCommand command, JsonArray getPropString) {
 368         sendCommand(command, getPropString.toString());
 369     }
 370
 371     /**
 372      * Checks if the channel structure has been build already based on the model data. If not build it.
 373      */
 374     private void checkChannelStructure() {
 375         final MiIoBindingConfiguration configuration = this.configuration;
 376         if (configuration == null) {
 377             return;
 378         }
 379         if (!hasChannelStructure) {
 380             if (configuration.model.isEmpty()) {
 381                 logger.debug("Model needs to be determined");
 382                 isIdentified = false;
 383             } else {
 384                 hasChannelStructure = buildChannelStructure(configuration.model);
 385             }
 386         }
 387         if (hasChannelStructure) {
 388             refreshList = new ArrayList<>();
 389             refreshListCustomCommands = new HashMap<>();
 390             final MiIoBasicDevice miioDevice = this.miioDevice;
 391             if (miioDevice != null) {
 392                 for (MiIoBasicChannel miChannel : miioDevice.getDevice().getChannels()) {
 393                     if (miChannel.getRefresh()) {
 394                         if (miChannel.getChannelCustomRefreshCommand().isBlank()) {
 395                             refreshList.add(miChannel);
 396                         } else {
 397                             String i = miChannel.getChannelCustomRefreshCommand().split("\\[")[0];
 398                             refreshListCustomCommands.put(i.trim(), miChannel);
 399                         }
 400                     }
 401                 }
 402             }
 403
 404         }
 405     }
 406
 407     private boolean buildChannelStructure(String deviceName) {
 408         logger.debug("Building Channel Structure for {} - Model: {}", getThing().getUID().toString(), deviceName);
 409         URL fn = miIoDatabaseWatchService.getDatabaseUrl(deviceName);
 410         if (fn == null) {
 411             logger.warn("Database entry for model '{}' cannot be found.", deviceName);
 412             return false;
 413         }
 414         try {
 415             JsonObject deviceMapping = Utils.convertFileToJSON(fn);
 416             logger.debug("Using device database: {} for device {}", fn.getFile(), deviceName);
 417             Gson gson = new GsonBuilder().serializeNulls().create();
 418             miioDevice = gson.fromJson(deviceMapping, MiIoBasicDevice.class);
 419             for (Channel ch : getThing().getChannels()) {
 420                 logger.debug("Current thing channels {}, type: {}", ch.getUID(), ch.getChannelTypeUID());
 421             }
 422             ThingBuilder thingBuilder = editThing();
 423             int channelsAdded = 0;
 424
 425             // make a map of the actions
 426             actions = new HashMap<>();
 427             final MiIoBasicDevice device = this.miioDevice;
 428             if (device != null) {
 429                 for (Channel cn : getThing().getChannels()) {
 430                     logger.trace("Channel '{}' for thing {} already exist... removing", cn.getUID(),
 431                             getThing().getUID());
 432                     if (!PERSISTENT_CHANNELS.contains(cn.getUID().getId().toString())) {
 433                         thingBuilder.withoutChannels(cn);
 434                     }
 435                 }
 436                 for (MiIoBasicChannel miChannel : device.getDevice().getChannels()) {
 437                     logger.debug("properties {}", miChannel);
 438                     if (!miChannel.getType().isEmpty()) {
 439                         basicChannelTypeProvider.addChannelType(miChannel, deviceName);
 440                         ChannelUID channelUID = addChannel(thingBuilder, miChannel, deviceName);
 441                         if (channelUID != null) {
 442                             actions.put(channelUID, miChannel);
 443                             channelsAdded++;
 444                         } else {
 445                             logger.debug("Channel for {} ({}) not loaded", miChannel.getChannel(),
 446                                     miChannel.getFriendlyName());
 447                         }
 448                     } else {
 449                         logger.debug("Channel {} ({}), not loaded, missing type", miChannel.getChannel(),
 450                                 miChannel.getFriendlyName());
 451                     }
 452                 }
 453             }
 454             // only update if channels were added/removed
 455             if (channelsAdded > 0) {
 456                 logger.debug("Current thing channels added: {}", channelsAdded);
 457                 updateThing(thingBuilder.build());
 458             }
 459             return true;
 460         } catch (JsonIOException | JsonSyntaxException e) {
 461             logger.warn("Error parsing database Json", e);
 462         } catch (IOException e) {
 463             logger.warn("Error reading database file", e);
 464         } catch (Exception e) {
 465             logger.warn("Error creating channel structure", e);
 466         }
 467         return false;
 468     }
 469
 470     private @Nullable ChannelUID addChannel(ThingBuilder thingBuilder, MiIoBasicChannel miChannel, String model) {
 471         String channel = miChannel.getChannel();
 472         String dataType = miChannel.getType();
 473         if (channel.isEmpty() || dataType.isEmpty()) {
 474             logger.info("Channel '{}', UID '{}' cannot be added incorrectly configured database. ", channel,
 475                     getThing().getUID());
 476             return null;
 477         }
 478         ChannelUID channelUID = new ChannelUID(getThing().getUID(), channel);
 479         ChannelBuilder newChannel = ChannelBuilder.create(channelUID, dataType).withLabel(miChannel.getFriendlyName());
 480         boolean useGeneratedChannelType = false;
 481         if (!miChannel.getChannelType().isBlank()) {
 482             ChannelTypeUID channelTypeUID = new ChannelTypeUID(miChannel.getChannelType());
 483             if (channelTypeRegistry.getChannelType(channelTypeUID) != null) {
 484                 newChannel = newChannel.withType(channelTypeUID);
 485                 final LinkedHashSet<String> tags = miChannel.getTags();
 486                 if (tags != null && !tags.isEmpty()) {
 487                     newChannel.withDefaultTags(tags);
 488                 }
 489             } else {
 490                 logger.debug("ChannelType '{}' is not available. Check the Json file for {}", channelTypeUID, model);
 491                 useGeneratedChannelType = true;
 492             }
 493         } else {
 494             useGeneratedChannelType = true;
 495         }
 496         if (useGeneratedChannelType) {
 497             newChannel = newChannel
 498                     .withType(new ChannelTypeUID(BINDING_ID, model.toUpperCase().replace(".", "_") + "_" + channel));
 499             final Set<String> tags = miChannel.getTags();
 500             if (tags != null && !tags.isEmpty()) {
 501                 newChannel.withDefaultTags(tags);
 502             }
 503         }
 504         thingBuilder.withChannel(newChannel.build());
 505         return channelUID;
 506     }
 507
 508     private @Nullable MiIoBasicChannel getChannel(String parameter) {
 509         for (MiIoBasicChannel refreshEntry : refreshList) {
 510             if (refreshEntry.getProperty().equals(parameter)) {
 511                 return refreshEntry;
 512             }
 513         }
 514         logger.trace("Did not find channel for {} in {}", parameter, refreshList);
 515         return null;
 516     }
 517
 518     private void updatePropsFromJsonArray(MiIoSendCommand response) {
 519         JsonArray res = response.getResult().getAsJsonArray();
 520         JsonArray para = JsonParser.parseString(response.getCommandString()).getAsJsonObject().get("params")
 521                 .getAsJsonArray();
 522         if (res.size() != para.size()) {
 523             logger.debug("Unexpected size different. Request size {},  response size {}. (Req: {}, Resp:{})",
 524                     para.size(), res.size(), para, res);
 525             return;
 526         }
 527         for (int i = 0; i < para.size(); i++) {
 528             // This is a miot parameter
 529             String param;
 530             final JsonElement paraElement = para.get(i);
 531             if (paraElement.isJsonObject()) { // miot channel
 532                 param = paraElement.getAsJsonObject().get("did").getAsString();
 533             } else {
 534                 param = paraElement.getAsString();
 535             }
 536             JsonElement val = res.get(i);
 537             if (val.isJsonNull()) {
 538                 logger.debug("Property '{}' returned null (is it supported?).", param);
 539                 continue;
 540             } else if (val.isJsonObject()) { // miot channel
 541                 val = val.getAsJsonObject().get("value");
 542             }
 543             MiIoBasicChannel basicChannel = getChannel(param);
 544             updateChannel(basicChannel, param, val);
 545         }
 546     }
 547
 548     private void updatePropsFromJsonObject(MiIoSendCommand response) {
 549         JsonObject res = response.getResult().getAsJsonObject();
 550         for (Object k : res.keySet()) {
 551             String param = (String) k;
 552             JsonElement val = res.get(param);
 553             if (val.isJsonNull()) {
 554                 logger.debug("Property '{}' returned null (is it supported?).", param);
 555                 continue;
 556             }
 557             MiIoBasicChannel basicChannel = getChannel(param);
 558             updateChannel(basicChannel, param, val);
 559         }
 560     }
 561
 562     private void updateChannel(@Nullable MiIoBasicChannel basicChannel, String param, JsonElement value) {
 563         JsonElement val = value;
 564         if (basicChannel == null) {
 565             logger.debug("Channel not found for {}", param);
 566             return;
 567         }
 568         final String transformation = basicChannel.getTransformation();
 569         if (transformation != null) {
 570             JsonElement transformed = Conversions.execute(transformation, val);
 571             logger.debug("Transformed with '{}': {} {} -> {} ", transformation, basicChannel.getFriendlyName(), val,
 572                     transformed);
 573             val = transformed;
 574         }
 575         try {
 576             String[] chType = basicChannel.getType().toLowerCase().split(":");
 577             switch (chType[0]) {
 578                 case "number":
 579                     quantityTypeUpdate(basicChannel, val, chType.length > 1 ? chType[1] : "");
 580                     break;
 581                 case "dimmer":
 582                     updateState(basicChannel.getChannel(), new PercentType(val.getAsBigDecimal()));
 583                     break;
 584                 case "string":
 585                     if (val.isJsonPrimitive()) {
 586                         updateState(basicChannel.getChannel(), new StringType(val.getAsString()));
 587                     } else {
 588                         updateState(basicChannel.getChannel(), new StringType(val.toString()));
 589                     }
 590                     break;
 591                 case "switch":
 592                     if (val.getAsJsonPrimitive().isNumber()) {
 593                         updateState(basicChannel.getChannel(), val.getAsInt() > 0 ? OnOffType.ON : OnOffType.OFF);
 594                     } else {
 595                         String strVal = val.getAsString().toLowerCase();
 596                         updateState(basicChannel.getChannel(),
 597                                 "on".equals(strVal) || "true".equals(strVal) ? OnOffType.ON : OnOffType.OFF);
 598                     }
 599                     break;
 600                 case "color":
 601                     if (val.isJsonPrimitive() && val.getAsJsonPrimitive().isNumber()) {
 602                         Color rgb = new Color(val.getAsInt());
 603                         HSBType hsb = HSBType.fromRGB(rgb.getRed(), rgb.getGreen(), rgb.getBlue());
 604                         updateState(basicChannel.getChannel(), hsb);
 605                     } else {
 606                         try {
 607                             HSBType hsb = HSBType.valueOf(val.getAsString().replace("[", "").replace("]", ""));
 608                             updateState(basicChannel.getChannel(), hsb);
 609                         } catch (IllegalArgumentException e) {
 610                             logger.debug("Failed updating channel '{}'. Could not convert '{}' to color",
 611                                     basicChannel.getChannel(), val.getAsString());
 612                         }
 613                     }
 614                     break;
 615                 default:
 616                     logger.debug("No update logic for channeltype '{}' ", basicChannel.getType());
 617             }
 618         } catch (Exception e) {
 619             logger.debug("Error updating {} property {} with '{}' : {}: {}", getThing().getUID(),
 620                     basicChannel.getChannel(), val, e.getClass().getCanonicalName(), e.getMessage());
 621             logger.trace("Property update error detail:", e);
 622         }
 623     }
 624
 625     private void quantityTypeUpdate(MiIoBasicChannel basicChannel, JsonElement val, String type) {
 626         if (!basicChannel.getUnit().isBlank()) {
 627             Unit<?> unit = MiIoQuantiyTypes.get(basicChannel.getUnit());
 628             if (unit != null) {
 629                 logger.debug("'{}' channel '{}' has unit '{}' with symbol '{}'.", getThing().getUID(),
 630                         basicChannel.getChannel(), basicChannel.getUnit(), unit);
 631                 updateState(basicChannel.getChannel(), new QuantityType<>(val.getAsBigDecimal(), unit));
 632             } else {
 633                 logger.debug(
 634                         "Unit '{}' used by '{}' channel '{}' is not found in conversion table... Trying anyway to submit as the update.",
 635                         basicChannel.getUnit(), getThing().getUID(), basicChannel.getChannel());
 636                 updateState(basicChannel.getChannel(),
 637                         new QuantityType<>(val.getAsBigDecimal().toPlainString() + " " + basicChannel.getUnit()));
 638             }
 639             return;
 640         }
 641         // if no unit is provided or unit not found use default units, these units have so far been seen for miio
 642         // devices
 643         switch (type.toLowerCase()) {
 644             case "temperature":
 645                 updateState(basicChannel.getChannel(), new QuantityType<>(val.getAsBigDecimal(), SIUnits.CELSIUS));
 646                 break;
 647             case "electriccurrent":
 648                 updateState(basicChannel.getChannel(), new QuantityType<>(val.getAsBigDecimal(), Units.AMPERE));
 649                 break;
 650             case "energy":
 651                 updateState(basicChannel.getChannel(), new QuantityType<>(val.getAsBigDecimal(), Units.WATT));
 652                 break;
 653             case "time":
 654                 updateState(basicChannel.getChannel(), new QuantityType<>(val.getAsBigDecimal(), Units.HOUR));
 655                 break;
 656             default:
 657                 updateState(basicChannel.getChannel(), new DecimalType(val.getAsBigDecimal()));
 658         }
 659     }
 660
 661     @Override
 662     public void onMessageReceived(MiIoSendCommand response) {
 663         super.onMessageReceived(response);
 664         if (response.isError()) {
 665             return;
 666         }
 667         try {
 668             switch (response.getCommand()) {
 669                 case MIIO_INFO:
 670                     break;
 671                 case GET_VALUE:
 672                 case GET_PROPERTIES:
 673                 case GET_PROPERTY:
 674                     if (response.getResult().isJsonArray()) {
 675                         updatePropsFromJsonArray(response);
 676                     } else if (response.getResult().isJsonObject()) {
 677                         updatePropsFromJsonObject(response);
 678                     }
 679                     break;
 680                 default:
 681                     if (refreshListCustomCommands.containsKey(response.getMethod())) {
 682                         logger.debug("Processing custom refresh command response for '{}' - {}", response.getMethod(),
 683                                 response.getResult());
 684                         final MiIoBasicChannel ch = refreshListCustomCommands.get(response.getMethod());
 685                         if (ch != null) {
 686                             if (response.getResult().isJsonArray()) {
 687                                 JsonArray cmdResponse = response.getResult().getAsJsonArray();
 688                                 final String transformation = ch.getTransformation();
 689                                 if (transformation == null || transformation.isBlank()) {
 690                                     JsonElement response0 = cmdResponse.get(0);
 691                                     updateChannel(ch, ch.getChannel(), response0.isJsonPrimitive() ? response0
 692                                             : new JsonPrimitive(response0.toString()));
 693                                 } else {
 694                                     updateChannel(ch, ch.getChannel(), cmdResponse);
 695                                 }
 696                             } else {
 697                                 updateChannel(ch, ch.getChannel(), new JsonPrimitive(response.getResult().toString()));
 698                             }
 699                         }
 700                     }
 701                     break;
 702             }
 703         } catch (Exception e) {
 704             logger.debug("Error while handing message {}", response.getResponse(), e);
 705         }
 706     }
 707 }