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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.avmfritz.internal.handler;
  14
  15 import static org.openhab.binding.avmfritz.internal.AVMFritzBindingConstants.*;
  16
  17 import java.math.BigDecimal;
  18 import java.time.Instant;
  19 import java.time.ZoneId;
  20 import java.time.ZonedDateTime;
  21 import java.util.List;
  22 import java.util.Optional;
  23
  24 import org.eclipse.jdt.annotation.NonNullByDefault;
  25 import org.eclipse.jdt.annotation.Nullable;
  26 import org.openhab.binding.avmfritz.internal.dto.AVMFritzBaseModel;
  27 import org.openhab.binding.avmfritz.internal.dto.BatteryModel;
  28 import org.openhab.binding.avmfritz.internal.dto.ButtonModel;
  29 import org.openhab.binding.avmfritz.internal.dto.DeviceModel;
  30 import org.openhab.binding.avmfritz.internal.dto.HumidityModel;
  31 import org.openhab.binding.avmfritz.internal.dto.TemperatureModel;
  32 import org.openhab.core.library.types.DateTimeType;
  33 import org.openhab.core.library.types.DecimalType;
  34 import org.openhab.core.library.types.OnOffType;
  35 import org.openhab.core.library.types.QuantityType;
  36 import org.openhab.core.library.unit.SIUnits;
  37 import org.openhab.core.library.unit.Units;
  38 import org.openhab.core.thing.Channel;
  39 import org.openhab.core.thing.ChannelUID;
  40 import org.openhab.core.thing.CommonTriggerEvents;
  41 import org.openhab.core.thing.Thing;
  42 import org.openhab.core.thing.ThingUID;
  43 import org.openhab.core.types.UnDefType;
  44 import org.slf4j.Logger;
  45 import org.slf4j.LoggerFactory;
  46
  47 /**
  48  * Handler for a FRITZ! buttons. Handles commands, which are sent to one of the channels.
  49  *
  50  * @author Christoph Weitkamp - Initial contribution
  51  */
  52 @NonNullByDefault
  53 public class AVMFritzButtonHandler extends DeviceHandler {
  54
  55     private static final String TOP_RIGHT_SUFFIX = "-1";
  56     private static final String BOTTOM_RIGHT_SUFFIX = "-3";
  57     private static final String BOTTOM_LEFT_SUFFIX = "-5";
  58     private static final String TOP_LEFT_SUFFIX = "-7";
  59
  60     private final Logger logger = LoggerFactory.getLogger(AVMFritzButtonHandler.class);
  61     /**
  62      * keeps track of the last timestamp for handling trigger events
  63      */
  64     private Instant lastTimestamp;
  65
  66     /**
  67      * Constructor
  68      *
  69      * @param thing Thing object representing a FRITZ! button
  70      */
  71     public AVMFritzButtonHandler(Thing thing) {
  72         super(thing);
  73         lastTimestamp = Instant.now();
  74     }
  75
  76     @Override
  77     public void onDeviceUpdated(ThingUID thingUID, AVMFritzBaseModel device) {
  78         if (thing.getUID().equals(thingUID)) {
  79             super.onDeviceUpdated(thingUID, device);
  80
  81             if (device instanceof DeviceModel deviceModel) {
  82                 if (deviceModel.isHANFUNButton()) {
  83                     updateHANFUNButton(deviceModel.getButtons());
  84                 }
  85                 if (deviceModel.isButton()) {
  86                     if (DECT400_THING_TYPE.equals(thing.getThingTypeUID())) {
  87                         updateShortLongPressButton(deviceModel.getButtons());
  88                     } else if (DECT440_THING_TYPE.equals(thing.getThingTypeUID())) {
  89                         updateButtons(deviceModel.getButtons());
  90                     }
  91                     updateBattery(deviceModel);
  92                 }
  93             }
  94         }
  95     }
  96
  97     @Override
  98     protected void updateTemperatureSensor(@Nullable TemperatureModel temperatureModel) {
  99         if (temperatureModel != null) {
 100             String channelId = (DECT440_THING_TYPE.equals(thing.getThingTypeUID())
 101                     ? CHANNEL_GROUP_SENSORS + ChannelUID.CHANNEL_GROUP_SEPARATOR
 102                     : "") + CHANNEL_TEMPERATURE;
 103             updateThingChannelState(channelId, new QuantityType<>(temperatureModel.getCelsius(), SIUnits.CELSIUS));
 104             updateThingChannelConfiguration(channelId, CONFIG_CHANNEL_TEMP_OFFSET, temperatureModel.getOffset());
 105         }
 106     }
 107
 108     @Override
 109     protected void updateHumiditySensor(@Nullable HumidityModel humidityModel) {
 110         if (humidityModel != null) {
 111             String channelId = (DECT440_THING_TYPE.equals(thing.getThingTypeUID())
 112                     ? CHANNEL_GROUP_SENSORS + ChannelUID.CHANNEL_GROUP_SEPARATOR
 113                     : "") + CHANNEL_HUMIDITY;
 114             updateThingChannelState(channelId, new QuantityType<>(humidityModel.getRelativeHumidity(), Units.PERCENT));
 115         }
 116     }
 117
 118     @Override
 119     protected void updateBattery(BatteryModel batteryModel) {
 120         String batteryLevelChannelId = (DECT440_THING_TYPE.equals(thing.getThingTypeUID())
 121                 ? CHANNEL_GROUP_DEVICE + ChannelUID.CHANNEL_GROUP_SEPARATOR
 122                 : "") + CHANNEL_BATTERY;
 123         BigDecimal batteryLevel = batteryModel.getBattery();
 124         updateThingChannelState(batteryLevelChannelId,
 125                 batteryLevel == null ? UnDefType.UNDEF : new DecimalType(batteryLevel));
 126         String lowBatteryChannelId = (DECT440_THING_TYPE.equals(thing.getThingTypeUID())
 127                 ? CHANNEL_GROUP_DEVICE + ChannelUID.CHANNEL_GROUP_SEPARATOR
 128                 : "") + CHANNEL_BATTERY_LOW;
 129         BigDecimal lowBattery = batteryModel.getBatterylow();
 130         if (lowBattery == null) {
 131             updateThingChannelState(lowBatteryChannelId, UnDefType.UNDEF);
 132         } else {
 133             updateThingChannelState(lowBatteryChannelId, OnOffType.from(BatteryModel.BATTERY_ON.equals(lowBattery)));
 134         }
 135     }
 136
 137     private void updateShortLongPressButton(List<ButtonModel> buttons) {
 138         ButtonModel shortPressButton = !buttons.isEmpty() ? buttons.get(0) : null;
 139         ButtonModel longPressButton = buttons.size() > 1 ? buttons.get(1) : null;
 140         ButtonModel lastPressedButton = shortPressButton != null && (longPressButton == null
 141                 || shortPressButton.getLastpressedtimestamp() > longPressButton.getLastpressedtimestamp())
 142                         ? shortPressButton
 143                         : longPressButton;
 144         if (lastPressedButton != null) {
 145             updateButton(lastPressedButton,
 146                     lastPressedButton.equals(shortPressButton) ? CommonTriggerEvents.SHORT_PRESSED
 147                             : CommonTriggerEvents.LONG_PRESSED);
 148         }
 149     }
 150
 151     private void updateButtons(List<ButtonModel> buttons) {
 152         Optional<ButtonModel> topLeft = buttons.stream().filter(b -> b.getIdentifier().endsWith(TOP_LEFT_SUFFIX))
 153                 .findFirst();
 154         if (topLeft.isPresent()) {
 155             updateButton(topLeft.get(), CommonTriggerEvents.PRESSED, CHANNEL_GROUP_TOP_LEFT);
 156         }
 157         Optional<ButtonModel> bottomLeft = buttons.stream().filter(b -> b.getIdentifier().endsWith(BOTTOM_LEFT_SUFFIX))
 158                 .findFirst();
 159         if (bottomLeft.isPresent()) {
 160             updateButton(bottomLeft.get(), CommonTriggerEvents.PRESSED, CHANNEL_GROUP_BOTTOM_LEFT);
 161         }
 162         Optional<ButtonModel> topRight = buttons.stream().filter(b -> b.getIdentifier().endsWith(TOP_RIGHT_SUFFIX))
 163                 .findFirst();
 164         if (topRight.isPresent()) {
 165             updateButton(topRight.get(), CommonTriggerEvents.PRESSED, CHANNEL_GROUP_TOP_RIGHT);
 166         }
 167         Optional<ButtonModel> bottomRight = buttons.stream()
 168                 .filter(b -> b.getIdentifier().endsWith(BOTTOM_RIGHT_SUFFIX)).findFirst();
 169         if (bottomRight.isPresent()) {
 170             updateButton(bottomRight.get(), CommonTriggerEvents.PRESSED, CHANNEL_GROUP_BOTTOM_RIGHT);
 171         }
 172     }
 173
 174     private void updateHANFUNButton(List<ButtonModel> buttons) {
 175         if (!buttons.isEmpty()) {
 176             updateButton(buttons.get(0), CommonTriggerEvents.PRESSED);
 177         }
 178     }
 179
 180     private void updateButton(ButtonModel buttonModel, String event) {
 181         updateButton(buttonModel, event, null);
 182     }
 183
 184     private void updateButton(ButtonModel buttonModel, String event, @Nullable String channelGroupId) {
 185         int lastPressedTimestamp = buttonModel.getLastpressedtimestamp();
 186         if (lastPressedTimestamp == 0) {
 187             updateThingChannelState(
 188                     channelGroupId == null ? CHANNEL_LAST_CHANGE
 189                             : channelGroupId + ChannelUID.CHANNEL_GROUP_SEPARATOR + CHANNEL_LAST_CHANGE,
 190                     UnDefType.UNDEF);
 191         } else {
 192             ZonedDateTime timestamp = ZonedDateTime.ofInstant(Instant.ofEpochSecond(lastPressedTimestamp),
 193                     ZoneId.systemDefault());
 194             Instant then = timestamp.toInstant();
 195             // Avoid dispatching events if "lastpressedtimestamp" is older than now "lastTimestamp" (e.g. during
 196             // restart)
 197             if (then.isAfter(lastTimestamp)) {
 198                 lastTimestamp = then;
 199                 triggerThingChannel(channelGroupId == null ? CHANNEL_PRESS
 200                         : channelGroupId + ChannelUID.CHANNEL_GROUP_SEPARATOR + CHANNEL_PRESS, event);
 201             }
 202             updateThingChannelState(
 203                     channelGroupId == null ? CHANNEL_LAST_CHANGE
 204                             : channelGroupId + ChannelUID.CHANNEL_GROUP_SEPARATOR + CHANNEL_LAST_CHANGE,
 205                     new DateTimeType(timestamp));
 206         }
 207     }
 208
 209     /**
 210      * Triggers thing channels.
 211      *
 212      * @param channelId ID of the channel to be triggered.
 213      * @param event Event to emit
 214      */
 215     private void triggerThingChannel(String channelId, String event) {
 216         Channel channel = thing.getChannel(channelId);
 217         if (channel != null) {
 218             triggerChannel(channel.getUID(), event);
 219         } else {
 220             logger.debug("Channel '{}' in thing '{}' does not exist.", channelId, thing.getUID());
 221         }
 222     }
 223 }