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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.meater.internal.handler;
  14
  15 import static org.openhab.binding.meater.internal.MeaterBindingConstants.*;
  16
  17 import java.time.Instant;
  18 import java.time.ZonedDateTime;
  19
  20 import javax.measure.quantity.Temperature;
  21
  22 import org.eclipse.jdt.annotation.NonNullByDefault;
  23 import org.eclipse.jdt.annotation.Nullable;
  24 import org.openhab.binding.meater.internal.MeaterConfiguration;
  25 import org.openhab.binding.meater.internal.dto.MeaterProbeDTO.Cook;
  26 import org.openhab.binding.meater.internal.dto.MeaterProbeDTO.Device;
  27 import org.openhab.core.i18n.TimeZoneProvider;
  28 import org.openhab.core.library.types.DateTimeType;
  29 import org.openhab.core.library.types.QuantityType;
  30 import org.openhab.core.library.types.StringType;
  31 import org.openhab.core.library.unit.SIUnits;
  32 import org.openhab.core.library.unit.Units;
  33 import org.openhab.core.thing.Bridge;
  34 import org.openhab.core.thing.Channel;
  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.openhab.core.types.State;
  42 import org.openhab.core.types.UnDefType;
  43
  44 /**
  45  * The {@link MeaterHandler} is responsible for handling commands, which are
  46  * sent to one of the channels.
  47  *
  48  * @author Jan Gustafsson - Initial contribution
  49  */
  50 @NonNullByDefault
  51 public class MeaterHandler extends BaseThingHandler {
  52
  53     private String deviceId = "";
  54     private TimeZoneProvider timeZoneProvider;
  55
  56     public MeaterHandler(Thing thing, TimeZoneProvider timeZoneProvider) {
  57         super(thing);
  58         this.timeZoneProvider = timeZoneProvider;
  59     }
  60
  61     @Override
  62     public void handleCommand(ChannelUID channelUID, Command command) {
  63     }
  64
  65     @Override
  66     public void initialize() {
  67         deviceId = getConfigAs(MeaterConfiguration.class).getDeviceId();
  68         updateStatus(ThingStatus.UNKNOWN);
  69
  70         scheduler.execute(() -> {
  71             update();
  72         });
  73     }
  74
  75     public void update() {
  76         Device meaterProbe = getMeaterProbe();
  77         if (meaterProbe != null) {
  78             update(meaterProbe);
  79         } else {
  80             updateStatus(ThingStatus.OFFLINE, ThingStatusDetail.COMMUNICATION_ERROR,
  81                     "@text/offline.communication-error.description");
  82         }
  83     }
  84
  85     private @Nullable Device getMeaterProbe() {
  86         Bridge bridge = getBridge();
  87         if (bridge != null && bridge.getStatus() == ThingStatus.ONLINE) {
  88             MeaterBridgeHandler bridgeHandler = (MeaterBridgeHandler) bridge.getHandler();
  89             if (bridgeHandler != null) {
  90                 return bridgeHandler.getMeaterThings().get(deviceId);
  91             }
  92         }
  93         return null;
  94     }
  95
  96     private void update(Device meaterProbe) {
  97         // Update all channels from the updated data
  98         getThing().getChannels().stream().map(Channel::getUID).filter(channelUID -> isLinked(channelUID))
  99                 .forEach(channelUID -> {
 100                     State state = getValue(channelUID.getId(), meaterProbe);
 101                     updateState(channelUID, state);
 102                 });
 103         updateStatus(ThingStatus.ONLINE);
 104     }
 105
 106     private State getValue(String channelId, Device meaterProbe) {
 107         Cook cook = meaterProbe.cook;
 108         switch (channelId) {
 109             case CHANNEL_INTERNAL_TEMPERATURE:
 110                 return new QuantityType<Temperature>(meaterProbe.temperature.internal, SIUnits.CELSIUS);
 111             case CHANNEL_AMBIENT_TEMPERATURE:
 112                 return new QuantityType<Temperature>(meaterProbe.temperature.ambient, SIUnits.CELSIUS);
 113             case CHANNEL_COOK_TARGET_TEMPERATURE:
 114                 if (cook != null) {
 115                     return new QuantityType<Temperature>(cook.temperature.target, SIUnits.CELSIUS);
 116                 }
 117                 break;
 118             case CHANNEL_COOK_PEAK_TEMPERATURE:
 119                 if (cook != null) {
 120                     return new QuantityType<Temperature>(cook.temperature.peak, SIUnits.CELSIUS);
 121                 }
 122                 break;
 123             case CHANNEL_COOK_ELAPSED_TIME:
 124                 if (cook != null) {
 125                     return new QuantityType<>(cook.time.elapsed, Units.SECOND);
 126                 }
 127                 break;
 128             case CHANNEL_COOK_REMAINING_TIME:
 129                 if (cook != null) {
 130                     return cook.time.remaining == -1 ? UnDefType.UNDEF
 131                             : new QuantityType<>(cook.time.remaining, Units.SECOND);
 132                 }
 133                 break;
 134             case CHANNEL_COOK_ID:
 135                 if (cook != null) {
 136                     return new StringType(cook.id);
 137                 }
 138                 break;
 139             case CHANNEL_COOK_NAME:
 140                 if (cook != null) {
 141                     return new StringType(cook.name);
 142                 }
 143                 break;
 144             case CHANNEL_COOK_STATE:
 145                 if (cook != null) {
 146                     return new StringType(cook.state);
 147                 }
 148                 break;
 149             case CHANNEL_LAST_CONNECTION:
 150                 Instant instant = meaterProbe.getLastConnection();
 151                 if (instant != null) {
 152                     return new DateTimeType(ZonedDateTime.ofInstant(instant, timeZoneProvider.getTimeZone()));
 153                 }
 154                 break;
 155             case CHANNEL_COOK_ESTIMATED_END_TIME:
 156                 if (cook != null) {
 157                     if (cook.time.remaining > -1) {
 158                         return new DateTimeType(
 159                                 ZonedDateTime.now(timeZoneProvider.getTimeZone()).plusSeconds(cook.time.remaining));
 160                     }
 161                 }
 162         }
 163         return UnDefType.UNDEF;
 164     }
 165 }