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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.amazonechocontrol.internal.handler;
  14
  15 import static org.openhab.binding.amazonechocontrol.internal.AmazonEchoControlBindingConstants.DEVICE_PROPERTY_ID;
  16 import static org.openhab.binding.amazonechocontrol.internal.smarthome.Constants.SUPPORTED_INTERFACES;
  17
  18 import java.util.*;
  19 import java.util.function.Function;
  20
  21 import org.eclipse.jdt.annotation.NonNullByDefault;
  22 import org.eclipse.jdt.annotation.Nullable;
  23 import org.openhab.binding.amazonechocontrol.internal.Connection;
  24 import org.openhab.binding.amazonechocontrol.internal.jsons.JsonSmartHomeCapabilities.SmartHomeCapability;
  25 import org.openhab.binding.amazonechocontrol.internal.jsons.JsonSmartHomeDevices.SmartHomeDevice;
  26 import org.openhab.binding.amazonechocontrol.internal.jsons.JsonSmartHomeGroupIdentifiers;
  27 import org.openhab.binding.amazonechocontrol.internal.jsons.JsonSmartHomeGroupIdentity;
  28 import org.openhab.binding.amazonechocontrol.internal.jsons.JsonSmartHomeGroups.SmartHomeGroup;
  29 import org.openhab.binding.amazonechocontrol.internal.jsons.JsonSmartHomeTags;
  30 import org.openhab.binding.amazonechocontrol.internal.jsons.SmartHomeBaseDevice;
  31 import org.openhab.binding.amazonechocontrol.internal.smarthome.Constants;
  32 import org.openhab.binding.amazonechocontrol.internal.smarthome.HandlerBase;
  33 import org.openhab.binding.amazonechocontrol.internal.smarthome.HandlerBase.ChannelInfo;
  34 import org.openhab.binding.amazonechocontrol.internal.smarthome.HandlerBase.UpdateChannelResult;
  35 import org.openhab.core.thing.Bridge;
  36 import org.openhab.core.thing.Channel;
  37 import org.openhab.core.thing.ChannelUID;
  38 import org.openhab.core.thing.Thing;
  39 import org.openhab.core.thing.ThingStatus;
  40 import org.openhab.core.thing.ThingStatusDetail;
  41 import org.openhab.core.thing.binding.BaseThingHandler;
  42 import org.openhab.core.thing.binding.BridgeHandler;
  43 import org.openhab.core.thing.binding.builder.ChannelBuilder;
  44 import org.openhab.core.thing.binding.builder.ThingBuilder;
  45 import org.openhab.core.thing.type.ChannelTypeUID;
  46 import org.openhab.core.types.Command;
  47 import org.openhab.core.types.RefreshType;
  48 import org.openhab.core.types.State;
  49 import org.openhab.core.types.StateDescription;
  50 import org.slf4j.Logger;
  51 import org.slf4j.LoggerFactory;
  52
  53 import com.google.gson.*;
  54
  55 /**
  56  * @author Lukas Knoeller - Initial contribution
  57  */
  58 @NonNullByDefault
  59 public class SmartHomeDeviceHandler extends BaseThingHandler {
  60     private final Logger logger = LoggerFactory.getLogger(SmartHomeDeviceHandler.class);
  61
  62     private @Nullable SmartHomeBaseDevice smartHomeBaseDevice;
  63     private final Gson gson;
  64     private final Map<String, HandlerBase> handlers = new HashMap<>();
  65     private final Map<String, JsonArray> lastStates = new HashMap<>();
  66
  67     public SmartHomeDeviceHandler(Thing thing, Gson gson) {
  68         super(thing);
  69         this.gson = gson;
  70     }
  71
  72     public synchronized void setDeviceAndUpdateThingState(AccountHandler accountHandler,
  73             @Nullable SmartHomeBaseDevice smartHomeBaseDevice) {
  74         if (smartHomeBaseDevice == null) {
  75             updateStatus(ThingStatus.OFFLINE, ThingStatusDetail.NONE, "Can't find smarthomeBaseDevice");
  76             return;
  77         }
  78         boolean changed = this.smartHomeBaseDevice == null;
  79         this.smartHomeBaseDevice = smartHomeBaseDevice;
  80
  81         Set<String> unusedChannels = new HashSet<>();
  82         thing.getChannels().forEach(channel -> unusedChannels.add(channel.getUID().getId()));
  83
  84         Set<String> unusedHandlers = new HashSet<>(handlers.keySet());
  85
  86         Map<String, List<SmartHomeCapability>> capabilities = new HashMap<>();
  87         getCapabilities(capabilities, accountHandler, smartHomeBaseDevice);
  88
  89         ThingBuilder thingBuilder = editThing();
  90
  91         for (String interfaceName : capabilities.keySet()) {
  92             HandlerBase handler = handlers.get(interfaceName);
  93             if (handler != null) {
  94                 unusedHandlers.remove(interfaceName);
  95             } else {
  96                 Function<SmartHomeDeviceHandler, HandlerBase> creator = Constants.HANDLER_FACTORY.get(interfaceName);
  97                 if (creator != null) {
  98                     handler = creator.apply(this);
  99                     handlers.put(interfaceName, handler);
 100                 }
 101             }
 102             if (handler != null) {
 103                 Collection<ChannelInfo> required = handler
 104                         .initialize(capabilities.getOrDefault(interfaceName, List.of()));
 105                 for (ChannelInfo channelInfo : required) {
 106                     unusedChannels.remove(channelInfo.channelId);
 107                     if (addChannelToDevice(thingBuilder, channelInfo.channelId, channelInfo.itemType,
 108                             channelInfo.channelTypeUID)) {
 109                         changed = true;
 110                     }
 111                 }
 112             }
 113         }
 114
 115         unusedHandlers.forEach(handlers::remove);
 116         if (!unusedChannels.isEmpty()) {
 117             changed = true;
 118             unusedChannels.stream().map(id -> new ChannelUID(thing.getUID(), id)).forEach(thingBuilder::withoutChannel);
 119         }
 120
 121         if (changed) {
 122             updateThing(thingBuilder.build());
 123             updateStatus(ThingStatus.UNKNOWN, ThingStatusDetail.NONE, "Thing has changed.");
 124             accountHandler.forceDelayedSmartHomeStateUpdate(getId());
 125         }
 126     }
 127
 128     public String getId() {
 129         String id = (String) getConfig().get(DEVICE_PROPERTY_ID);
 130         if (id == null) {
 131             return "";
 132         }
 133         return id;
 134     }
 135
 136     @Override
 137     public void updateState(String channelId, State state) {
 138         super.updateState(new ChannelUID(thing.getUID(), channelId), state);
 139     }
 140
 141     @Override
 142     public void initialize() {
 143         AccountHandler accountHandler = getAccountHandler();
 144         if (accountHandler != null) {
 145             accountHandler.addSmartHomeDeviceHandler(this);
 146             setDeviceAndUpdateThingState(accountHandler, smartHomeBaseDevice);
 147         } else {
 148             updateStatus(ThingStatus.OFFLINE, ThingStatusDetail.CONFIGURATION_ERROR, "Bridgehandler not found");
 149         }
 150     }
 151
 152     private boolean addChannelToDevice(ThingBuilder thingBuilder, String channelId, String itemType,
 153             ChannelTypeUID channelTypeUID) {
 154         Channel channel = thing.getChannel(channelId);
 155         if (channel != null) {
 156             if (channelTypeUID.equals(channel.getChannelTypeUID()) && itemType.equals(channel.getAcceptedItemType())) {
 157                 // channel exist with the same settings
 158                 return false;
 159             }
 160             // channel exist with other settings, remove it first
 161             thingBuilder.withoutChannel(channel.getUID());
 162         }
 163         thingBuilder.withChannel(ChannelBuilder.create(new ChannelUID(thing.getUID(), channelId), itemType)
 164                 .withType(channelTypeUID).build());
 165         return true;
 166     }
 167
 168     public void updateChannelStates(List<SmartHomeBaseDevice> allDevices,
 169             Map<String, JsonArray> applianceIdToCapabilityStates) {
 170         logger.trace("Updating {} with {}", allDevices, applianceIdToCapabilityStates);
 171         AccountHandler accountHandler = getAccountHandler();
 172         SmartHomeBaseDevice smartHomeBaseDevice = this.smartHomeBaseDevice;
 173         if (smartHomeBaseDevice == null) {
 174             updateStatus(ThingStatus.OFFLINE, ThingStatusDetail.NONE, "Can't find smarthomeBaseDevice!");
 175             return;
 176         }
 177
 178         boolean stateFound = false;
 179         Map<String, List<JsonObject>> mapInterfaceToStates = new HashMap<>();
 180         SmartHomeDevice firstDevice = null;
 181         for (SmartHomeDevice shd : getSupportedSmartHomeDevices(smartHomeBaseDevice, allDevices)) {
 182             String applianceId = shd.applianceId;
 183             if (applianceId == null) {
 184                 continue;
 185             }
 186             JsonArray states = applianceIdToCapabilityStates.get(applianceId);
 187             if (states != null) {
 188                 stateFound = true;
 189                 if (smartHomeBaseDevice.isGroup()) {
 190                     // for groups, store the last state of all devices
 191                     lastStates.put(applianceId, states);
 192                 }
 193             } else {
 194                 states = lastStates.get(applianceId);
 195                 if (states == null) {
 196                     continue;
 197                 }
 198             }
 199             if (firstDevice == null) {
 200                 firstDevice = shd;
 201             }
 202             for (JsonElement stateElement : states) {
 203                 String stateJson = stateElement.getAsString();
 204                 if (stateJson.startsWith("{") && stateJson.endsWith("}")) {
 205                     JsonObject state = Objects.requireNonNull(gson.fromJson(stateJson, JsonObject.class));
 206                     String interfaceName = Objects.requireNonNullElse(state.get("namespace"), JsonNull.INSTANCE)
 207                             .getAsString();
 208                     Objects.requireNonNull(mapInterfaceToStates.computeIfAbsent(interfaceName, k -> new ArrayList<>()))
 209                             .add(state);
 210                 }
 211             }
 212         }
 213
 214         for (HandlerBase handlerBase : handlers.values()) {
 215             UpdateChannelResult result = new UpdateChannelResult();
 216             for (String interfaceName : handlerBase.getSupportedInterface()) {
 217                 List<JsonObject> stateList = mapInterfaceToStates.get(interfaceName);
 218                 if (stateList != null) {
 219                     try {
 220                         handlerBase.updateChannels(interfaceName, stateList, result);
 221                     } catch (Exception e) {
 222                         // We catch all exceptions, otherwise all other things are not updated!
 223                         logger.debug("Updating states failed", e);
 224                         updateStatus(ThingStatus.OFFLINE, ThingStatusDetail.COMMUNICATION_ERROR,
 225                                 e.getLocalizedMessage());
 226                     }
 227                 }
 228             }
 229
 230             if (result.needSingleUpdate && smartHomeBaseDevice instanceof SmartHomeDevice && accountHandler != null) {
 231                 SmartHomeDevice shd = (SmartHomeDevice) smartHomeBaseDevice;
 232                 accountHandler.forceDelayedSmartHomeStateUpdate(shd.findId());
 233             }
 234         }
 235
 236         if (stateFound) {
 237             updateStatus(ThingStatus.ONLINE);
 238         } else {
 239             updateStatus(ThingStatus.UNKNOWN, ThingStatusDetail.NONE, "State not found");
 240         }
 241     }
 242
 243     private @Nullable AccountHandler getAccountHandler() {
 244         Bridge bridge = getBridge();
 245         if (bridge != null) {
 246             BridgeHandler bridgeHandler = bridge.getHandler();
 247             if (bridgeHandler instanceof AccountHandler) {
 248                 return (AccountHandler) bridgeHandler;
 249             }
 250         }
 251
 252         return null;
 253     }
 254
 255     @Override
 256     public void handleCommand(ChannelUID channelUID, Command command) {
 257         AccountHandler accountHandler = getAccountHandler();
 258         if (accountHandler == null) {
 259             logger.debug("accountHandler is null in {}", thing.getUID());
 260             return;
 261         }
 262         Connection connection = accountHandler.findConnection();
 263         if (connection == null) {
 264             logger.debug("connection is null in {}", thing.getUID());
 265             return;
 266         }
 267
 268         try {
 269             if (command instanceof RefreshType) {
 270                 accountHandler.forceDelayedSmartHomeStateUpdate(getId());
 271                 return;
 272             }
 273             SmartHomeBaseDevice smartHomeBaseDevice = this.smartHomeBaseDevice;
 274             if (smartHomeBaseDevice == null) {
 275                 logger.debug("smarthomeBaseDevice is null in {}", thing.getUID());
 276                 return;
 277             }
 278             Set<SmartHomeDevice> devices = getSupportedSmartHomeDevices(smartHomeBaseDevice,
 279                     accountHandler.getLastKnownSmartHomeDevices());
 280             String channelId = channelUID.getId();
 281
 282             for (String interfaceName : handlers.keySet()) {
 283                 HandlerBase handlerBase = handlers.get(interfaceName);
 284                 if (handlerBase == null || !handlerBase.hasChannel(channelId)) {
 285                     continue;
 286                 }
 287                 for (SmartHomeDevice shd : devices) {
 288                     String entityId = shd.entityId;
 289                     if (entityId == null) {
 290                         continue;
 291                     }
 292                     accountHandler.forceDelayedSmartHomeStateUpdate(getId()); // block updates
 293                     if (handlerBase.handleCommand(connection, shd, entityId, shd.getCapabilities(), channelUID.getId(),
 294                             command)) {
 295                         accountHandler.forceDelayedSmartHomeStateUpdate(getId()); // force update again to restart
 296                         // update timer
 297                         logger.debug("Command {} sent to {}", command, shd.findId());
 298                     }
 299                 }
 300             }
 301         } catch (Exception e) {
 302             logger.warn("Handle command failed", e);
 303         }
 304     }
 305
 306     private static void getCapabilities(Map<String, List<SmartHomeCapability>> result, AccountHandler accountHandler,
 307             SmartHomeBaseDevice device) {
 308         if (device instanceof SmartHomeDevice) {
 309             SmartHomeDevice shd = (SmartHomeDevice) device;
 310             for (SmartHomeCapability capability : shd.getCapabilities()) {
 311                 String interfaceName = capability.interfaceName;
 312                 if (interfaceName != null) {
 313                     Objects.requireNonNull(result.computeIfAbsent(interfaceName, name -> new ArrayList<>()))
 314                             .add(capability);
 315                 }
 316             }
 317         }
 318         if (device instanceof SmartHomeGroup) {
 319             for (SmartHomeDevice shd : getSupportedSmartHomeDevices(device,
 320                     accountHandler.getLastKnownSmartHomeDevices())) {
 321                 getCapabilities(result, accountHandler, shd);
 322             }
 323         }
 324     }
 325
 326     public static Set<SmartHomeDevice> getSupportedSmartHomeDevices(@Nullable SmartHomeBaseDevice baseDevice,
 327             List<SmartHomeBaseDevice> allDevices) {
 328         if (baseDevice == null) {
 329             return Collections.emptySet();
 330         }
 331         Set<SmartHomeDevice> result = new HashSet<>();
 332         if (baseDevice instanceof SmartHomeDevice) {
 333             SmartHomeDevice shd = (SmartHomeDevice) baseDevice;
 334             if (shd.getCapabilities().stream().map(capability -> capability.interfaceName)
 335                     .anyMatch(SUPPORTED_INTERFACES::contains)) {
 336                 result.add(shd);
 337
 338             }
 339         } else {
 340             SmartHomeGroup shg = (SmartHomeGroup) baseDevice;
 341             for (SmartHomeBaseDevice device : allDevices) {
 342                 if (device instanceof SmartHomeDevice) {
 343                     SmartHomeDevice shd = (SmartHomeDevice) device;
 344                     JsonSmartHomeTags.JsonSmartHomeTag tags = shd.tags;
 345                     if (tags != null) {
 346                         JsonSmartHomeGroupIdentity.SmartHomeGroupIdentity tagNameToValueSetMap = tags.tagNameToValueSetMap;
 347                         JsonSmartHomeGroupIdentifiers.SmartHomeGroupIdentifier applianceGroupIdentifier = shg.applianceGroupIdentifier;
 348                         if (tagNameToValueSetMap != null) {
 349                             List<String> groupIdentity = Objects.requireNonNullElse(tagNameToValueSetMap.groupIdentity,
 350                                     List.of());
 351                             if (applianceGroupIdentifier != null && applianceGroupIdentifier.value != null
 352                                     && groupIdentity.contains(applianceGroupIdentifier.value)) {
 353                                 if (shd.getCapabilities().stream().map(capability -> capability.interfaceName)
 354                                         .anyMatch(SUPPORTED_INTERFACES::contains)) {
 355                                     result.add(shd);
 356                                 }
 357                             }
 358                         }
 359                     }
 360                 }
 361             }
 362         }
 363         return result;
 364     }
 365
 366     public @Nullable StateDescription findStateDescription(Channel channel, StateDescription originalStateDescription,
 367             @Nullable Locale locale) {
 368         String channelId = channel.getUID().getId();
 369         for (HandlerBase handler : handlers.values()) {
 370             if (handler.hasChannel(channelId)) {
 371                 return handler.findStateDescription(channelId, originalStateDescription, locale);
 372             }
 373         }
 374         return null;
 375     }
 376 }