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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.binding.homewizard.internal;
  14
  15 import org.eclipse.jdt.annotation.NonNullByDefault;
  16 import org.openhab.core.library.types.OnOffType;
  17 import org.openhab.core.library.types.PercentType;
  18 import org.openhab.core.library.types.QuantityType;
  19 import org.openhab.core.library.unit.Units;
  20 import org.openhab.core.thing.ChannelUID;
  21 import org.openhab.core.thing.Thing;
  22 import org.openhab.core.types.Command;
  23 import org.openhab.core.types.RefreshType;
  24
  25 /**
  26  * The {@link HomeWizardEnergySocketHandler} implements functionality to handle a HomeWizard EnergySocket.
  27  *
  28  * @author Daniël van Os - Initial contribution
  29  */
  30 @NonNullByDefault
  31 public class HomeWizardEnergySocketHandler extends HomeWizardStatefulDeviceHandler {
  32
  33     /**
  34      * Constructor
  35      *
  36      * @param thing The thing to handle
  37      */
  38     public HomeWizardEnergySocketHandler(Thing thing) {
  39         super(thing);
  40     }
  41
  42     /**
  43      * Converts a brightness value (0..255) to a percentage.
  44      *
  45      * @param brightness The brightness to convert.
  46      * @return brightness percentage
  47      */
  48     private int brightnessToPercentage(int brightness) {
  49         return (int) (100.0 * brightness / 255.0 + 0.5);
  50     }
  51
  52     /**
  53      * Converts a percentage to a brightness value (0..255)
  54      *
  55      * @param percentage The percentage to convert.
  56      * @return brightness value
  57      */
  58     private int percentageToBrightness(String percentage) {
  59         return (int) (Double.valueOf(percentage) * 255.0 / 100.0 + 0.5);
  60     }
  61
  62     /**
  63      * Handle incoming commands.
  64      *
  65      * Power on/off, Power lock/unlock and Ring brightness are supported.
  66      */
  67     @Override
  68     public void handleCommand(ChannelUID channelUID, Command command) {
  69         if (command instanceof RefreshType) {
  70             // For now I prefer not updating immediately above firing a full update request for each channel
  71             return;
  72         }
  73
  74         StatePayload result = null;
  75
  76         /*
  77          * The returned payloads below only contain the modified value, so each has it's own
  78          * call to updateState instead of just calling handleStatePayload() with the returned
  79          * payload.
  80          */
  81
  82         switch (channelUID.getId()) {
  83             case HomeWizardBindingConstants.CHANNEL_RING_BRIGHTNESS: {
  84                 result = sendStateCommand(
  85                         String.format("{\"brightness\": %d}", percentageToBrightness(command.toFullString())));
  86                 if (result != null) {
  87                     updateState(HomeWizardBindingConstants.CHANNEL_RING_BRIGHTNESS,
  88                             new PercentType(brightnessToPercentage(result.getBrightness())));
  89                 }
  90                 break;
  91             }
  92             case HomeWizardBindingConstants.CHANNEL_POWER_SWITCH: {
  93                 boolean onOff = command.equals(OnOffType.ON);
  94                 result = sendStateCommand(String.format("{\"power_on\": %b}", onOff));
  95                 if (result != null) {
  96                     updateState(HomeWizardBindingConstants.CHANNEL_POWER_SWITCH, OnOffType.from(result.getPowerOn()));
  97                 }
  98                 break;
  99             }
 100             case HomeWizardBindingConstants.CHANNEL_POWER_LOCK: {
 101                 boolean onOff = command.equals(OnOffType.ON);
 102                 result = sendStateCommand(String.format("{\"switch_lock\": %b}", onOff));
 103                 if (result != null) {
 104                     updateState(HomeWizardBindingConstants.CHANNEL_POWER_LOCK, OnOffType.from(result.getSwitchLock()));
 105                 }
 106                 break;
 107             }
 108             default:
 109                 logger.warn("Should handle {} {}", channelUID.getIdWithoutGroup(), command);
 110                 break;
 111         }
 112     }
 113
 114     /**
 115      * Device specific handling of the returned payload.
 116      *
 117      * @param payload The data parsed from the Json file
 118      */
 119     @Override
 120     protected void handleDataPayload(DataPayload payload) {
 121         updateState(HomeWizardBindingConstants.CHANNEL_ENERGY_IMPORT_T1,
 122                 new QuantityType<>(payload.getTotalEnergyImportT1Kwh(), Units.KILOWATT_HOUR));
 123         updateState(HomeWizardBindingConstants.CHANNEL_ENERGY_EXPORT_T1,
 124                 new QuantityType<>(payload.getTotalEnergyExportT1Kwh(), Units.KILOWATT_HOUR));
 125         updateState(HomeWizardBindingConstants.CHANNEL_ACTIVE_POWER,
 126                 new QuantityType<>(payload.getActivePowerW(), Units.WATT));
 127     }
 128
 129     @Override
 130     protected void handleStatePayload(StatePayload payload) {
 131         updateState(HomeWizardBindingConstants.CHANNEL_POWER_SWITCH, OnOffType.from(payload.getPowerOn()));
 132         updateState(HomeWizardBindingConstants.CHANNEL_POWER_LOCK, OnOffType.from(payload.getSwitchLock()));
 133         updateState(HomeWizardBindingConstants.CHANNEL_RING_BRIGHTNESS,
 134                 new PercentType(brightnessToPercentage(payload.getBrightness())));
 135     }
 136 }