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   1 /**
   2  * Copyright (c) 2010-2023 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.nikohomecontrol.internal.handler;
  14
  15 import static org.openhab.binding.nikohomecontrol.internal.NikoHomeControlBindingConstants.*;
  16 import static org.openhab.binding.nikohomecontrol.internal.protocol.NikoHomeControlConstants.*;
  17 import static org.openhab.core.library.unit.SIUnits.CELSIUS;
  18 import static org.openhab.core.types.RefreshType.REFRESH;
  19
  20 import java.math.BigDecimal;
  21 import java.util.HashMap;
  22 import java.util.Map;
  23 import java.util.concurrent.ScheduledFuture;
  24 import java.util.concurrent.TimeUnit;
  25
  26 import org.eclipse.jdt.annotation.NonNullByDefault;
  27 import org.eclipse.jdt.annotation.Nullable;
  28 import org.openhab.binding.nikohomecontrol.internal.protocol.NhcThermostat;
  29 import org.openhab.binding.nikohomecontrol.internal.protocol.NhcThermostatEvent;
  30 import org.openhab.binding.nikohomecontrol.internal.protocol.NikoHomeControlCommunication;
  31 import org.openhab.binding.nikohomecontrol.internal.protocol.nhc2.NhcThermostat2;
  32 import org.openhab.core.library.types.DecimalType;
  33 import org.openhab.core.library.types.QuantityType;
  34 import org.openhab.core.library.types.StringType;
  35 import org.openhab.core.thing.Bridge;
  36 import org.openhab.core.thing.ChannelUID;
  37 import org.openhab.core.thing.Thing;
  38 import org.openhab.core.thing.ThingStatus;
  39 import org.openhab.core.thing.ThingStatusDetail;
  40 import org.openhab.core.thing.ThingStatusInfo;
  41 import org.openhab.core.thing.binding.BaseThingHandler;
  42 import org.openhab.core.types.Command;
  43 import org.slf4j.Logger;
  44 import org.slf4j.LoggerFactory;
  45
  46 /**
  47  * The {@link NikoHomeControlThermostatHandler} is responsible for handling commands, which are
  48  * sent to one of the channels.
  49  *
  50  * @author Mark Herwege - Initial Contribution
  51  */
  52 @NonNullByDefault
  53 public class NikoHomeControlThermostatHandler extends BaseThingHandler implements NhcThermostatEvent {
  54
  55     private final Logger logger = LoggerFactory.getLogger(NikoHomeControlThermostatHandler.class);
  56
  57     private volatile @Nullable NhcThermostat nhcThermostat;
  58
  59     private volatile boolean initialized = false;
  60
  61     private String thermostatId = "";
  62     private int overruleTime;
  63
  64     private volatile @Nullable ScheduledFuture<?> refreshTimer; // used to refresh the remaining overrule time every
  65                                                                 // minute
  66
  67     public NikoHomeControlThermostatHandler(Thing thing) {
  68         super(thing);
  69     }
  70
  71     @Override
  72     public void handleCommand(ChannelUID channelUID, Command command) {
  73         NikoHomeControlCommunication nhcComm = getCommunication(getBridgeHandler());
  74         if (nhcComm == null) {
  75             logger.debug("communication not up yet, cannot handle command {} for {}", command, channelUID);
  76             return;
  77         }
  78
  79         // This can be expensive, therefore do it in a job.
  80         scheduler.submit(() -> {
  81             if (!nhcComm.communicationActive()) {
  82                 restartCommunication(nhcComm);
  83             }
  84
  85             if (nhcComm.communicationActive()) {
  86                 handleCommandSelection(channelUID, command);
  87             }
  88         });
  89     }
  90
  91     private void handleCommandSelection(ChannelUID channelUID, Command command) {
  92         NhcThermostat nhcThermostat = this.nhcThermostat;
  93         if (nhcThermostat == null) {
  94             logger.debug("thermostat with ID {} not initialized", thermostatId);
  95             return;
  96         }
  97
  98         logger.debug("handle command {} for {}", command, channelUID);
  99
 100         if (REFRESH.equals(command)) {
 101             thermostatEvent(nhcThermostat.getMeasured(), nhcThermostat.getSetpoint(), nhcThermostat.getMode(),
 102                     nhcThermostat.getOverrule(), nhcThermostat.getDemand());
 103             return;
 104         }
 105
 106         switch (channelUID.getId()) {
 107             case CHANNEL_MEASURED:
 108             case CHANNEL_DEMAND:
 109             case CHANNEL_HEATING_DEMAND:
 110                 updateStatus(ThingStatus.ONLINE);
 111                 break;
 112             case CHANNEL_MODE:
 113                 if (command instanceof DecimalType decimalCommand) {
 114                     nhcThermostat.executeMode(decimalCommand.intValue());
 115                 }
 116                 updateStatus(ThingStatus.ONLINE);
 117                 break;
 118             case CHANNEL_HEATING_MODE:
 119                 if (command instanceof StringType) {
 120                     nhcThermostat.executeMode(command.toString());
 121                 }
 122                 updateStatus(ThingStatus.ONLINE);
 123                 break;
 124             case CHANNEL_SETPOINT:
 125                 // Always set the new setpoint temperature as an overrule
 126                 // If no overrule time is given yet, set the overrule time to the configuration parameter
 127                 int time = nhcThermostat.getOverruletime();
 128                 if (time <= 0) {
 129                     time = overruleTime;
 130                 }
 131                 if (command instanceof QuantityType<?> quantityCommand) {
 132                     QuantityType<?> setpoint = quantityCommand.toUnit(CELSIUS);
 133                     if (setpoint != null) {
 134                         nhcThermostat.executeOverrule(Math.round(setpoint.floatValue() * 10), time);
 135                     }
 136                 } else if (command instanceof DecimalType decimalCommand) {
 137                     BigDecimal setpoint = decimalCommand.toBigDecimal();
 138                     nhcThermostat.executeOverrule(Math.round(setpoint.floatValue() * 10), time);
 139                 }
 140                 updateStatus(ThingStatus.ONLINE);
 141                 break;
 142             case CHANNEL_OVERRULETIME:
 143                 if (command instanceof DecimalType decimalCommand) {
 144                     int overruletime = decimalCommand.intValue();
 145                     int overrule = nhcThermostat.getOverrule();
 146                     if (overruletime <= 0) {
 147                         overruletime = 0;
 148                         overrule = 0;
 149                     }
 150                     nhcThermostat.executeOverrule(overrule, overruletime);
 151                 }
 152                 updateStatus(ThingStatus.ONLINE);
 153                 break;
 154             default:
 155                 logger.debug("unexpected command for channel {}", channelUID.getId());
 156         }
 157     }
 158
 159     @Override
 160     public void initialize() {
 161         initialized = false;
 162
 163         NikoHomeControlThermostatConfig config = getConfig().as(NikoHomeControlThermostatConfig.class);
 164
 165         thermostatId = config.thermostatId;
 166         overruleTime = config.overruleTime;
 167
 168         NikoHomeControlBridgeHandler bridgeHandler = getBridgeHandler();
 169         if (bridgeHandler == null) {
 170             updateStatus(ThingStatus.OFFLINE, ThingStatusDetail.CONFIGURATION_ERROR,
 171                     "@text/offline.configuration-error.invalid-bridge-handler");
 172             return;
 173         }
 174
 175         updateStatus(ThingStatus.UNKNOWN);
 176
 177         Bridge bridge = getBridge();
 178         if ((bridge != null) && ThingStatus.ONLINE.equals(bridge.getStatus())) {
 179             // We need to do this in a separate thread because we may have to wait for the
 180             // communication to become active
 181             scheduler.submit(this::startCommunication);
 182         }
 183     }
 184
 185     private synchronized void startCommunication() {
 186         NikoHomeControlCommunication nhcComm = getCommunication(getBridgeHandler());
 187
 188         if (nhcComm == null) {
 189             return;
 190         }
 191
 192         if (!nhcComm.communicationActive()) {
 193             updateStatus(ThingStatus.OFFLINE, ThingStatusDetail.COMMUNICATION_ERROR,
 194                     "@text/offline.communication-error");
 195             return;
 196         }
 197
 198         NhcThermostat nhcThermostat = nhcComm.getThermostats().get(thermostatId);
 199         if (nhcThermostat == null) {
 200             updateStatus(ThingStatus.OFFLINE, ThingStatusDetail.CONFIGURATION_ERROR,
 201                     "@text/offline.configuration-error.thermostatId");
 202             return;
 203         }
 204
 205         nhcThermostat.setEventHandler(this);
 206
 207         updateProperties(nhcThermostat);
 208
 209         String thermostatLocation = nhcThermostat.getLocation();
 210         if (thing.getLocation() == null) {
 211             thing.setLocation(thermostatLocation);
 212         }
 213
 214         this.nhcThermostat = nhcThermostat;
 215
 216         logger.debug("thermostat intialized {}", thermostatId);
 217
 218         Bridge bridge = getBridge();
 219         if ((bridge != null) && (bridge.getStatus() == ThingStatus.ONLINE)) {
 220             updateStatus(ThingStatus.ONLINE);
 221         } else {
 222             updateStatus(ThingStatus.OFFLINE, ThingStatusDetail.BRIDGE_OFFLINE);
 223         }
 224
 225         thermostatEvent(nhcThermostat.getMeasured(), nhcThermostat.getSetpoint(), nhcThermostat.getMode(),
 226                 nhcThermostat.getOverrule(), nhcThermostat.getDemand());
 227
 228         initialized = true;
 229     }
 230
 231     @Override
 232     public void dispose() {
 233         NikoHomeControlCommunication nhcComm = getCommunication(getBridgeHandler());
 234         if (nhcComm != null) {
 235             NhcThermostat thermostat = nhcComm.getThermostats().get(thermostatId);
 236             if (thermostat != null) {
 237                 thermostat.unsetEventHandler();
 238             }
 239         }
 240         nhcThermostat = null;
 241         super.dispose();
 242     }
 243
 244     private void updateProperties(NhcThermostat nhcThermostat) {
 245         Map<String, String> properties = new HashMap<>();
 246
 247         if (nhcThermostat instanceof NhcThermostat2 thermostat) {
 248             properties.put(PROPERTY_DEVICE_TYPE, thermostat.getDeviceType());
 249             properties.put(PROPERTY_DEVICE_TECHNOLOGY, thermostat.getDeviceTechnology());
 250             properties.put(PROPERTY_DEVICE_MODEL, thermostat.getDeviceModel());
 251         }
 252
 253         thing.setProperties(properties);
 254     }
 255
 256     @Override
 257     public void thermostatEvent(int measured, int setpoint, int mode, int overrule, int demand) {
 258         NhcThermostat nhcThermostat = this.nhcThermostat;
 259         if (nhcThermostat == null) {
 260             logger.debug("thermostat with ID {} not initialized", thermostatId);
 261             return;
 262         }
 263
 264         updateState(CHANNEL_MEASURED, new QuantityType<>(measured / 10.0, CELSIUS));
 265
 266         int overruletime = nhcThermostat.getRemainingOverruletime();
 267         updateState(CHANNEL_OVERRULETIME, new DecimalType(overruletime));
 268         // refresh the remaining time every minute
 269         scheduleRefreshOverruletime(nhcThermostat);
 270
 271         // If there is an overrule temperature set, use this in the setpoint channel, otherwise use the original
 272         // setpoint temperature
 273         if (overruletime == 0) {
 274             updateState(CHANNEL_SETPOINT, new QuantityType<>(setpoint / 10.0, CELSIUS));
 275         } else {
 276             updateState(CHANNEL_SETPOINT, new QuantityType<>(overrule / 10.0, CELSIUS));
 277         }
 278
 279         updateState(CHANNEL_MODE, new DecimalType(mode));
 280         updateState(CHANNEL_HEATING_MODE, new StringType(THERMOSTATMODES[mode]));
 281
 282         updateState(CHANNEL_DEMAND, new DecimalType(demand));
 283         updateState(CHANNEL_HEATING_DEMAND, new StringType(THERMOSTATDEMAND[Math.abs(demand) <= 1 ? (demand + 1) : 0]));
 284
 285         updateStatus(ThingStatus.ONLINE);
 286     }
 287
 288     /**
 289      * Method to update state of overruletime channel every minute with remaining time.
 290      *
 291      * @param NhcThermostat object
 292      *
 293      */
 294     private void scheduleRefreshOverruletime(NhcThermostat nhcThermostat) {
 295         cancelRefreshTimer();
 296
 297         if (nhcThermostat.getRemainingOverruletime() == 0) {
 298             return;
 299         }
 300
 301         refreshTimer = scheduler.scheduleWithFixedDelay(() -> {
 302             int remainingTime = nhcThermostat.getRemainingOverruletime();
 303             updateState(CHANNEL_OVERRULETIME, new DecimalType(remainingTime));
 304             if (remainingTime == 0) {
 305                 cancelRefreshTimer();
 306             }
 307         }, 1, 1, TimeUnit.MINUTES);
 308     }
 309
 310     private void cancelRefreshTimer() {
 311         ScheduledFuture<?> timer = refreshTimer;
 312         if (timer != null) {
 313             timer.cancel(true);
 314         }
 315         refreshTimer = null;
 316     }
 317
 318     @Override
 319     public void thermostatInitialized() {
 320         Bridge bridge = getBridge();
 321         if ((bridge != null) && (bridge.getStatus() == ThingStatus.ONLINE)) {
 322             updateStatus(ThingStatus.ONLINE);
 323         }
 324     }
 325
 326     @Override
 327     public void thermostatRemoved() {
 328         updateStatus(ThingStatus.OFFLINE, ThingStatusDetail.CONFIGURATION_ERROR,
 329                 "@text/offline.configuration-error.thermostatRemoved");
 330     }
 331
 332     private void restartCommunication(NikoHomeControlCommunication nhcComm) {
 333         // We lost connection but the connection object is there, so was correctly started.
 334         // Try to restart communication.
 335         nhcComm.scheduleRestartCommunication();
 336         // If still not active, take thing offline and return.
 337         if (!nhcComm.communicationActive()) {
 338             updateStatus(ThingStatus.OFFLINE, ThingStatusDetail.COMMUNICATION_ERROR,
 339                     "@text/offline.communication-error");
 340             return;
 341         }
 342         // Also put the bridge back online
 343         NikoHomeControlBridgeHandler nhcBridgeHandler = getBridgeHandler();
 344         if (nhcBridgeHandler != null) {
 345             nhcBridgeHandler.bridgeOnline();
 346         } else {
 347             updateStatus(ThingStatus.OFFLINE, ThingStatusDetail.CONFIGURATION_ERROR,
 348                     "@text/offline.configuration-error.invalid-bridge-handler");
 349         }
 350     }
 351
 352     private @Nullable NikoHomeControlCommunication getCommunication(
 353             @Nullable NikoHomeControlBridgeHandler nhcBridgeHandler) {
 354         return nhcBridgeHandler != null ? nhcBridgeHandler.getCommunication() : null;
 355     }
 356
 357     private @Nullable NikoHomeControlBridgeHandler getBridgeHandler() {
 358         Bridge nhcBridge = getBridge();
 359         return nhcBridge != null ? (NikoHomeControlBridgeHandler) nhcBridge.getHandler() : null;
 360     }
 361
 362     @Override
 363     public void bridgeStatusChanged(ThingStatusInfo bridgeStatusInfo) {
 364         ThingStatus bridgeStatus = bridgeStatusInfo.getStatus();
 365         if (ThingStatus.ONLINE.equals(bridgeStatus)) {
 366             if (!initialized) {
 367                 scheduler.submit(this::startCommunication);
 368             } else {
 369                 updateStatus(ThingStatus.ONLINE);
 370             }
 371         } else {
 372             updateStatus(ThingStatus.OFFLINE, ThingStatusDetail.BRIDGE_OFFLINE);
 373         }
 374     }
 375 }