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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 static org.openhab.io.homekit.internal.HomekitCharacteristicType.ACTIVE_STATUS;
  16 import static org.openhab.io.homekit.internal.HomekitCharacteristicType.INUSE_STATUS;
  17 import static org.openhab.io.homekit.internal.HomekitCharacteristicType.REMAINING_DURATION;
  18
  19 import java.util.HashMap;
  20 import java.util.List;
  21 import java.util.Map;
  22 import java.util.concurrent.CompletableFuture;
  23 import java.util.concurrent.Executors;
  24 import java.util.concurrent.ScheduledExecutorService;
  25 import java.util.concurrent.ScheduledFuture;
  26 import java.util.concurrent.TimeUnit;
  27
  28 import org.eclipse.jdt.annotation.Nullable;
  29 import org.openhab.core.items.GenericItem;
  30 import org.openhab.core.library.items.SwitchItem;
  31 import org.openhab.core.library.types.DecimalType;
  32 import org.openhab.core.library.types.OnOffType;
  33 import org.openhab.core.types.RefreshType;
  34 import org.openhab.io.homekit.internal.HomekitAccessoryUpdater;
  35 import org.openhab.io.homekit.internal.HomekitCharacteristicType;
  36 import org.openhab.io.homekit.internal.HomekitSettings;
  37 import org.openhab.io.homekit.internal.HomekitTaggedItem;
  38 import org.slf4j.Logger;
  39 import org.slf4j.LoggerFactory;
  40
  41 import io.github.hapjava.accessories.ValveAccessory;
  42 import io.github.hapjava.characteristics.HomekitCharacteristicChangeCallback;
  43 import io.github.hapjava.characteristics.impl.common.ActiveEnum;
  44 import io.github.hapjava.characteristics.impl.common.InUseEnum;
  45 import io.github.hapjava.characteristics.impl.valve.RemainingDurationCharacteristic;
  46 import io.github.hapjava.characteristics.impl.valve.ValveTypeEnum;
  47 import io.github.hapjava.services.impl.ValveService;
  48
  49 /**
  50  *
  51  * @author Tim Harper - Initial contribution
  52  * @author Eugen Freiter - timer implementation
  53  */
  54 public class HomekitValveImpl extends AbstractHomekitAccessoryImpl implements ValveAccessory {
  55     private final Logger logger = LoggerFactory.getLogger(HomekitValveImpl.class);
  56     private static final String CONFIG_VALVE_TYPE = "homekitValveType";
  57     public static final String CONFIG_DEFAULT_DURATION = "homekitDefaultDuration";
  58     private static final String CONFIG_TIMER = "homekitTimer";
  59
  60     private static final Map<String, ValveTypeEnum> CONFIG_VALVE_TYPE_MAPPING = new HashMap<String, ValveTypeEnum>() {
  61         {
  62             put("GENERIC", ValveTypeEnum.GENERIC);
  63             put("IRRIGATION", ValveTypeEnum.IRRIGATION);
  64             put("SHOWER", ValveTypeEnum.SHOWER);
  65             put("FAUCET", ValveTypeEnum.WATER_FAUCET);
  66         }
  67     };
  68     private final BooleanItemReader inUseReader;
  69     private final BooleanItemReader activeReader;
  70     private final ScheduledExecutorService timerService = Executors.newSingleThreadScheduledExecutor();
  71     private ScheduledFuture<?> valveTimer;
  72     private final boolean homekitTimer;
  73
  74     public HomekitValveImpl(HomekitTaggedItem taggedItem, List<HomekitTaggedItem> mandatoryCharacteristics,
  75             HomekitAccessoryUpdater updater, HomekitSettings settings) throws IncompleteAccessoryException {
  76         super(taggedItem, mandatoryCharacteristics, updater, settings);
  77         inUseReader = createBooleanReader(INUSE_STATUS);
  78         activeReader = createBooleanReader(ACTIVE_STATUS);
  79         ValveService service = new ValveService(this);
  80         getServices().add(service);
  81         homekitTimer = getAccessoryConfigurationAsBoolean(CONFIG_TIMER, false);
  82         if (homekitTimer) {
  83             addRemainingDurationCharacteristic(taggedItem, updater, service);
  84         }
  85     }
  86
  87     private void addRemainingDurationCharacteristic(HomekitTaggedItem taggedItem, HomekitAccessoryUpdater updater,
  88             ValveService service) {
  89         logger.trace("addRemainingDurationCharacteristic for {}", taggedItem);
  90         service.addOptionalCharacteristic(new RemainingDurationCharacteristic(() -> {
  91             int remainingTime = 0;
  92             ScheduledFuture<?> future = valveTimer;
  93             if (future != null && !future.isDone()) {
  94                 remainingTime = Math.toIntExact(future.getDelay(TimeUnit.SECONDS));
  95             }
  96             return CompletableFuture.completedFuture(remainingTime);
  97         }, HomekitCharacteristicFactory.getSubscriber(taggedItem, REMAINING_DURATION, updater),
  98                 HomekitCharacteristicFactory.getUnsubscriber(taggedItem, REMAINING_DURATION, updater)));
  99     }
 100
 101     /**
 102      * return duration set by home app at corresponding OH items. if ot set, then return the default duration from
 103      * configuration.
 104      *
 105      * @return duraion
 106      */
 107     private int getDuration() {
 108         int duration = 0;
 109         final @Nullable DecimalType durationState = getStateAs(HomekitCharacteristicType.DURATION, DecimalType.class);
 110         if (durationState != null) {
 111             duration = durationState.intValue();
 112         }
 113         return duration;
 114     }
 115
 116     private void startTimer() {
 117         int duration = getDuration();
 118         logger.trace("start timer for duration {}", duration);
 119         if (duration > 0) {
 120             stopTimer();
 121             valveTimer = timerService.schedule(() -> {
 122                 logger.trace("valve timer is over. switching off the valve");
 123                 switchOffValve();
 124                 // let home app refresh the remaining duration, which is 0
 125                 ((GenericItem) getRootAccessory().getItem()).send(RefreshType.REFRESH);
 126             }, duration, TimeUnit.SECONDS);
 127             logger.trace("started valve timer for {} seconds.", duration);
 128         } else {
 129             logger.debug("valve timer not started as duration = 0");
 130         }
 131     }
 132
 133     private void stopTimer() {
 134         ScheduledFuture<?> future = valveTimer;
 135         if (future != null && !future.isDone()) {
 136             future.cancel(true);
 137         }
 138     }
 139
 140     @Override
 141     public CompletableFuture<ActiveEnum> getValveActive() {
 142         return CompletableFuture
 143                 .completedFuture(this.activeReader.getValue() ? ActiveEnum.ACTIVE : ActiveEnum.INACTIVE);
 144     }
 145
 146     @Override
 147     public CompletableFuture<Void> setValveActive(ActiveEnum state) {
 148         getItem(ACTIVE_STATUS, SwitchItem.class).ifPresent(item -> {
 149             item.send(OnOffType.from(state == ActiveEnum.ACTIVE));
 150             if (homekitTimer) {
 151                 if ((state == ActiveEnum.ACTIVE)) {
 152                     startTimer();
 153                 } else {
 154                     stopTimer();
 155                 }
 156                 // let home app refresh the remaining duration
 157                 ((GenericItem) getRootAccessory().getItem()).send(RefreshType.REFRESH);
 158             }
 159         });
 160         return CompletableFuture.completedFuture(null);
 161     }
 162
 163     private void switchOffValve() {
 164         getItem(ACTIVE_STATUS, SwitchItem.class).ifPresent(item -> item.send(OnOffType.OFF));
 165     }
 166
 167     @Override
 168     public void subscribeValveActive(HomekitCharacteristicChangeCallback callback) {
 169         subscribe(ACTIVE_STATUS, callback);
 170     }
 171
 172     @Override
 173     public void unsubscribeValveActive() {
 174         unsubscribe(ACTIVE_STATUS);
 175     }
 176
 177     @Override
 178     public CompletableFuture<InUseEnum> getValveInUse() {
 179         return CompletableFuture.completedFuture(inUseReader.getValue() ? InUseEnum.IN_USE : InUseEnum.NOT_IN_USE);
 180     }
 181
 182     @Override
 183     public void subscribeValveInUse(HomekitCharacteristicChangeCallback callback) {
 184         subscribe(INUSE_STATUS, callback);
 185     }
 186
 187     @Override
 188     public void unsubscribeValveInUse() {
 189         unsubscribe(INUSE_STATUS);
 190     }
 191
 192     @Override
 193     public CompletableFuture<ValveTypeEnum> getValveType() {
 194         final String valveType = getAccessoryConfiguration(CONFIG_VALVE_TYPE, "GENERIC");
 195         ValveTypeEnum type = CONFIG_VALVE_TYPE_MAPPING.get(valveType.toUpperCase());
 196         return CompletableFuture.completedFuture(type != null ? type : ValveTypeEnum.GENERIC);
 197     }
 198
 199     @Override
 200     public void subscribeValveType(HomekitCharacteristicChangeCallback callback) {
 201         // nothing changes here
 202     }
 203
 204     @Override
 205     public void unsubscribeValveType() {
 206         // nothing changes here
 207     }
 208 }