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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.fineoffsetweatherstation.internal.handler;
  14
  15 import java.math.BigDecimal;
  16
  17 import org.eclipse.jdt.annotation.NonNullByDefault;
  18 import org.eclipse.jdt.annotation.Nullable;
  19 import org.openhab.binding.fineoffsetweatherstation.internal.FineOffsetWeatherStationBindingConstants;
  20 import org.openhab.binding.fineoffsetweatherstation.internal.domain.response.BatteryStatus;
  21 import org.openhab.binding.fineoffsetweatherstation.internal.domain.response.SensorDevice;
  22 import org.openhab.core.library.types.DecimalType;
  23 import org.openhab.core.library.types.OnOffType;
  24 import org.openhab.core.library.types.QuantityType;
  25 import org.openhab.core.library.unit.Units;
  26 import org.openhab.core.thing.Channel;
  27 import org.openhab.core.thing.ChannelUID;
  28 import org.openhab.core.thing.Thing;
  29 import org.openhab.core.thing.ThingStatus;
  30 import org.openhab.core.thing.ThingStatusDetail;
  31 import org.openhab.core.thing.binding.BaseThingHandler;
  32 import org.openhab.core.types.Command;
  33 import org.openhab.core.types.UnDefType;
  34
  35 /**
  36  * The {@link FineOffsetSensorHandler} keeps track of the signal and battery of the sensor attached to the gateway.
  37  *
  38  * @author Andreas Berger - Initial contribution
  39  */
  40 @NonNullByDefault
  41 public class FineOffsetSensorHandler extends BaseThingHandler {
  42     private boolean disposed;
  43
  44     public FineOffsetSensorHandler(Thing thing) {
  45         super(thing);
  46     }
  47
  48     @Override
  49     public void handleCommand(ChannelUID channelUID, Command command) {
  50     }
  51
  52     @Override
  53     public void initialize() {
  54         updateStatus(ThingStatus.ONLINE);
  55         disposed = false;
  56     }
  57
  58     @Override
  59     public void dispose() {
  60         disposed = true;
  61     }
  62
  63     public void updateSensorState(@Nullable SensorDevice sensorDevice) {
  64         if (disposed) {
  65             return;
  66         }
  67         if (sensorDevice == null) {
  68             // this only happens, if sensor data was read out correctly from the gateway, but the things' device
  69             // (sensor) is no longer part of the paired sensors
  70             updateStatus(ThingStatus.OFFLINE, ThingStatusDetail.GONE);
  71             getThing().getChannels().forEach(c -> updateState(c.getUID(), UnDefType.UNDEF));
  72             return;
  73         }
  74         if (sensorDevice.getSignal() == 0) {
  75             updateStatus(ThingStatus.OFFLINE, ThingStatusDetail.COMMUNICATION_ERROR);
  76         } else {
  77             updateStatus(ThingStatus.ONLINE);
  78         }
  79         updateState(FineOffsetWeatherStationBindingConstants.SENSOR_CHANNEL_SIGNAL,
  80                 new DecimalType(sensorDevice.getSignal()));
  81         BatteryStatus batteryStatus = sensorDevice.getBatteryStatus();
  82
  83         updateState(FineOffsetWeatherStationBindingConstants.SENSOR_CHANNEL_LOW_BATTERY,
  84                 batteryStatus.isLow() ? OnOffType.ON : OnOffType.OFF);
  85         Integer percentage = batteryStatus.getPercentage();
  86         if (percentage != null) {
  87             updateState(FineOffsetWeatherStationBindingConstants.SENSOR_CHANNEL_BATTERY_LEVEL,
  88                     new DecimalType(new BigDecimal(percentage)));
  89         } else {
  90             @Nullable
  91             Channel channel = thing.getChannel(FineOffsetWeatherStationBindingConstants.SENSOR_CHANNEL_BATTERY_LEVEL);
  92             if (channel != null) {
  93                 updateThing(editThing().withoutChannels(channel).build());
  94             }
  95         }
  96         Double voltage = batteryStatus.getVoltage();
  97         if (voltage != null) {
  98             updateState(FineOffsetWeatherStationBindingConstants.SENSOR_CHANNEL_BATTERY_VOLTAGE,
  99                     new QuantityType<>(voltage, Units.VOLT));
 100         } else {
 101             @Nullable
 102             Channel channel = thing.getChannel(FineOffsetWeatherStationBindingConstants.SENSOR_CHANNEL_BATTERY_VOLTAGE);
 103             if (channel != null) {
 104                 updateThing(editThing().withoutChannels(channel).build());
 105             }
 106         }
 107     }
 108 }