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