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   1 /**
   2  * Copyright (c) 2010-2024 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 static org.openhab.io.homekit.internal.HomekitCharacteristicType.BATTERY_CHARGING_STATE;
  16 import static org.openhab.io.homekit.internal.HomekitCharacteristicType.BATTERY_LEVEL;
  17 import static org.openhab.io.homekit.internal.HomekitCharacteristicType.BATTERY_LOW_STATUS;
  18
  19 import java.math.BigDecimal;
  20 import java.util.List;
  21 import java.util.concurrent.CompletableFuture;
  22
  23 import org.eclipse.jdt.annotation.Nullable;
  24 import org.openhab.core.library.types.DecimalType;
  25 import org.openhab.io.homekit.internal.HomekitAccessoryUpdater;
  26 import org.openhab.io.homekit.internal.HomekitCharacteristicType;
  27 import org.openhab.io.homekit.internal.HomekitException;
  28 import org.openhab.io.homekit.internal.HomekitSettings;
  29 import org.openhab.io.homekit.internal.HomekitTaggedItem;
  30
  31 import io.github.hapjava.accessories.BatteryAccessory;
  32 import io.github.hapjava.characteristics.HomekitCharacteristicChangeCallback;
  33 import io.github.hapjava.characteristics.impl.battery.ChargingStateEnum;
  34 import io.github.hapjava.characteristics.impl.battery.StatusLowBatteryEnum;
  35 import io.github.hapjava.services.impl.BatteryService;
  36
  37 /**
  38  * Implements battery services for chargeable and non-chargeable batteries
  39  *
  40  * @author Eugen Freiter - Initial contribution
  41  */
  42 public class HomekitBatteryImpl extends AbstractHomekitAccessoryImpl implements BatteryAccessory {
  43     public static final String BATTERY_TYPE = "chargeable";
  44
  45     private final BooleanItemReader lowBatteryReader;
  46     private BooleanItemReader chargingBatteryReader;
  47     private final boolean isChargeable;
  48     private final BigDecimal lowThreshold;
  49
  50     public HomekitBatteryImpl(HomekitTaggedItem taggedItem, List<HomekitTaggedItem> mandatoryCharacteristics,
  51             HomekitAccessoryUpdater updater, HomekitSettings settings) throws IncompleteAccessoryException {
  52         super(taggedItem, mandatoryCharacteristics, updater, settings);
  53         lowThreshold = getAccessoryConfiguration(HomekitCharacteristicType.BATTERY_LOW_STATUS,
  54                 HomekitTaggedItem.BATTERY_LOW_THRESHOLD, BigDecimal.valueOf(20));
  55         lowBatteryReader = createBooleanReader(BATTERY_LOW_STATUS, lowThreshold, true);
  56         isChargeable = getAccessoryConfigurationAsBoolean(BATTERY_TYPE, false);
  57         if (isChargeable) {
  58             chargingBatteryReader = createBooleanReader(BATTERY_CHARGING_STATE);
  59         }
  60     }
  61
  62     @Override
  63     public void init() throws HomekitException {
  64         super.init();
  65         addService(new BatteryService(this));
  66     }
  67
  68     @Override
  69     public CompletableFuture<Integer> getBatteryLevel() {
  70         final @Nullable DecimalType state = getStateAs(BATTERY_LEVEL, DecimalType.class);
  71         return CompletableFuture.completedFuture(state != null ? state.intValue() : 0);
  72     }
  73
  74     @Override
  75     public CompletableFuture<StatusLowBatteryEnum> getLowBatteryState() {
  76         return CompletableFuture
  77                 .completedFuture(lowBatteryReader.getValue() ? StatusLowBatteryEnum.LOW : StatusLowBatteryEnum.NORMAL);
  78     }
  79
  80     @Override
  81     public CompletableFuture<ChargingStateEnum> getChargingState() {
  82         return CompletableFuture.completedFuture(isChargeable
  83                 ? chargingBatteryReader.getValue() ? ChargingStateEnum.CHARGING : ChargingStateEnum.NOT_CHARGING
  84                 : ChargingStateEnum.NOT_CHARABLE); // the mapping to NOT_CHARABLE is correct, there is a typo in java
  85                                                    // HAP
  86     }
  87
  88     @Override
  89     public void subscribeBatteryLevel(final HomekitCharacteristicChangeCallback callback) {
  90         subscribe(BATTERY_LEVEL, callback);
  91     }
  92
  93     @Override
  94     public void subscribeLowBatteryState(final HomekitCharacteristicChangeCallback callback) {
  95         subscribe(BATTERY_LOW_STATUS, callback);
  96     }
  97
  98     @Override
  99     public void subscribeBatteryChargingState(final HomekitCharacteristicChangeCallback callback) {
 100         if (isChargeable) {
 101             subscribe(BATTERY_CHARGING_STATE, callback);
 102         }
 103     }
 104
 105     @Override
 106     public void unsubscribeBatteryLevel() {
 107         unsubscribe(BATTERY_LEVEL);
 108     }
 109
 110     @Override
 111     public void unsubscribeLowBatteryState() {
 112         unsubscribe(BATTERY_LOW_STATUS);
 113     }
 114
 115     @Override
 116     public void unsubscribeBatteryChargingState() {
 117         if (isChargeable) {
 118             unsubscribe(BATTERY_CHARGING_STATE);
 119         }
 120     }
 121 }