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   1 /**
   2  * Copyright (c) 2010-2022 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.io.homekit.internal.accessories;
  14
  15 import java.math.BigDecimal;
  16 import java.util.List;
  17 import java.util.concurrent.CompletableFuture;
  18
  19 import org.eclipse.jdt.annotation.Nullable;
  20 import org.openhab.core.library.types.DecimalType;
  21 import org.openhab.io.homekit.internal.HomekitAccessoryUpdater;
  22 import org.openhab.io.homekit.internal.HomekitCharacteristicType;
  23 import org.openhab.io.homekit.internal.HomekitSettings;
  24 import org.openhab.io.homekit.internal.HomekitTaggedItem;
  25
  26 import io.github.hapjava.accessories.TemperatureSensorAccessory;
  27 import io.github.hapjava.characteristics.HomekitCharacteristicChangeCallback;
  28 import io.github.hapjava.characteristics.impl.thermostat.CurrentTemperatureCharacteristic;
  29 import io.github.hapjava.characteristics.impl.thermostat.TargetTemperatureCharacteristic;
  30 import io.github.hapjava.services.impl.TemperatureSensorService;
  31
  32 /**
  33  * Implements a HomeKit TemperatureSensor using a NumberItem
  34  *
  35  * @author Andy Lintner - Initial contribution
  36  */
  37 class HomekitTemperatureSensorImpl extends AbstractHomekitAccessoryImpl implements TemperatureSensorAccessory {
  38
  39     public HomekitTemperatureSensorImpl(HomekitTaggedItem taggedItem, List<HomekitTaggedItem> mandatoryCharacteristics,
  40             HomekitAccessoryUpdater updater, HomekitSettings settings) {
  41         super(taggedItem, mandatoryCharacteristics, updater, settings);
  42         getServices().add(new TemperatureSensorService(this));
  43     }
  44
  45     @Override
  46     public CompletableFuture<Double> getCurrentTemperature() {
  47         final @Nullable DecimalType state = getStateAs(HomekitCharacteristicType.CURRENT_TEMPERATURE,
  48                 DecimalType.class);
  49         return CompletableFuture
  50                 .completedFuture(state != null ? HomekitCharacteristicFactory.convertToCelsius(state.doubleValue())
  51                         : getMinCurrentTemperature());
  52     }
  53
  54     @Override
  55     public void subscribeCurrentTemperature(HomekitCharacteristicChangeCallback callback) {
  56         subscribe(HomekitCharacteristicType.CURRENT_TEMPERATURE, callback);
  57     }
  58
  59     @Override
  60     public double getMinCurrentTemperature() {
  61         // Apple defines default values in Celsius. We need to convert them to Fahrenheit if openHAB is using Fahrenheit
  62         // convertToCelsius and convertFromCelsius are only converting if useFahrenheit is set to true, so no additional
  63         // check here needed
  64         return HomekitCharacteristicFactory.convertToCelsius(
  65                 getAccessoryConfiguration(HomekitCharacteristicType.CURRENT_TEMPERATURE, HomekitTaggedItem.MIN_VALUE,
  66                         BigDecimal.valueOf(HomekitCharacteristicFactory
  67                                 .convertFromCelsius(CurrentTemperatureCharacteristic.DEFAULT_MIN_VALUE)))
  68                                         .doubleValue());
  69     }
  70
  71     @Override
  72     public double getMaxCurrentTemperature() {
  73         return HomekitCharacteristicFactory.convertToCelsius(
  74                 getAccessoryConfiguration(HomekitCharacteristicType.CURRENT_TEMPERATURE, HomekitTaggedItem.MAX_VALUE,
  75                         BigDecimal.valueOf(HomekitCharacteristicFactory
  76                                 .convertFromCelsius(CurrentTemperatureCharacteristic.DEFAULT_MAX_VALUE)))
  77                                         .doubleValue());
  78     }
  79
  80     @Override
  81     public double getMinStepCurrentTemperature() {
  82         return getAccessoryConfiguration(HomekitCharacteristicType.CURRENT_TEMPERATURE, HomekitTaggedItem.STEP,
  83                 BigDecimal.valueOf(TargetTemperatureCharacteristic.DEFAULT_STEP)).doubleValue();
  84     }
  85
  86     @Override
  87     public void unsubscribeCurrentTemperature() {
  88         unsubscribe(HomekitCharacteristicType.CURRENT_TEMPERATURE);
  89     }
  90 }