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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.amazonechocontrol.internal.smarthome;
  14
  15 import static org.openhab.binding.amazonechocontrol.internal.smarthome.Constants.ITEM_TYPE_DIMMER;
  16
  17 import java.io.IOException;
  18 import java.util.List;
  19 import java.util.Locale;
  20
  21 import org.eclipse.jdt.annotation.NonNullByDefault;
  22 import org.eclipse.jdt.annotation.Nullable;
  23 import org.openhab.binding.amazonechocontrol.internal.AmazonEchoControlBindingConstants;
  24 import org.openhab.binding.amazonechocontrol.internal.Connection;
  25 import org.openhab.binding.amazonechocontrol.internal.handler.SmartHomeDeviceHandler;
  26 import org.openhab.binding.amazonechocontrol.internal.jsons.JsonSmartHomeCapabilities.SmartHomeCapability;
  27 import org.openhab.binding.amazonechocontrol.internal.jsons.JsonSmartHomeDevices.SmartHomeDevice;
  28 import org.openhab.core.library.types.IncreaseDecreaseType;
  29 import org.openhab.core.library.types.OnOffType;
  30 import org.openhab.core.library.types.PercentType;
  31 import org.openhab.core.thing.type.ChannelTypeUID;
  32 import org.openhab.core.types.Command;
  33 import org.openhab.core.types.StateDescription;
  34 import org.openhab.core.types.UnDefType;
  35
  36 import com.google.gson.JsonObject;
  37
  38 /**
  39  * The {@link HandlerPowerLevelController} is responsible for the Alexa.PowerControllerInterface
  40  *
  41  * @author Lukas Knoeller - Initial contribution
  42  * @author Michael Geramb - Initial contribution
  43  */
  44 @NonNullByDefault
  45 public class HandlerPowerLevelController extends HandlerBase {
  46     // Interface
  47     public static final String INTERFACE = "Alexa.PowerLevelController";
  48
  49     // Channel types
  50     private static final ChannelTypeUID CHANNEL_TYPE_POWER_LEVEL = new ChannelTypeUID(
  51             AmazonEchoControlBindingConstants.BINDING_ID, "powerLevel");
  52
  53     // Channel definitions
  54     private static final ChannelInfo POWER_LEVEL = new ChannelInfo("powerLevel" /* propertyName */ ,
  55             "powerLevel" /* ChannelId */, CHANNEL_TYPE_POWER_LEVEL /* Channel Type */ ,
  56             ITEM_TYPE_DIMMER /* Item Type */);
  57
  58     private @Nullable Integer lastPowerLevel;
  59
  60     public HandlerPowerLevelController(SmartHomeDeviceHandler smartHomeDeviceHandler) {
  61         super(smartHomeDeviceHandler);
  62     }
  63
  64     @Override
  65     public String[] getSupportedInterface() {
  66         return new String[] { INTERFACE };
  67     }
  68
  69     @Override
  70     protected ChannelInfo @Nullable [] findChannelInfos(SmartHomeCapability capability, String property) {
  71         if (POWER_LEVEL.propertyName.equals(property)) {
  72             return new ChannelInfo[] { POWER_LEVEL };
  73         }
  74         return null;
  75     }
  76
  77     @Override
  78     public void updateChannels(String interfaceName, List<JsonObject> stateList, UpdateChannelResult result) {
  79         Integer powerLevelValue = null;
  80         for (JsonObject state : stateList) {
  81             if (POWER_LEVEL.propertyName.equals(state.get("name").getAsString())) {
  82                 int value = state.get("value").getAsInt();
  83                 // For groups take the maximum
  84                 if (powerLevelValue == null) {
  85                     powerLevelValue = value;
  86                 } else if (value > powerLevelValue) {
  87                     powerLevelValue = value;
  88                 }
  89             }
  90         }
  91         if (powerLevelValue != null) {
  92             lastPowerLevel = powerLevelValue;
  93         }
  94         updateState(POWER_LEVEL.channelId,
  95                 powerLevelValue == null ? UnDefType.UNDEF : new PercentType(powerLevelValue));
  96     }
  97
  98     @Override
  99     public boolean handleCommand(Connection connection, SmartHomeDevice shd, String entityId,
 100             List<SmartHomeCapability> capabilities, String channelId, Command command)
 101             throws IOException, InterruptedException {
 102         if (channelId.equals(POWER_LEVEL.channelId)) {
 103             if (containsCapabilityProperty(capabilities, POWER_LEVEL.propertyName)) {
 104                 if (command.equals(IncreaseDecreaseType.INCREASE)) {
 105                     Integer lastPowerLevel = this.lastPowerLevel;
 106                     if (lastPowerLevel != null) {
 107                         int newValue = lastPowerLevel++;
 108                         if (newValue > 100) {
 109                             newValue = 100;
 110                         }
 111                         this.lastPowerLevel = newValue;
 112                         connection.smartHomeCommand(entityId, "setPowerLevel", POWER_LEVEL.propertyName, newValue);
 113                         return true;
 114                     }
 115                 } else if (command.equals(IncreaseDecreaseType.DECREASE)) {
 116                     Integer lastPowerLevel = this.lastPowerLevel;
 117                     if (lastPowerLevel != null) {
 118                         int newValue = lastPowerLevel--;
 119                         if (newValue < 0) {
 120                             newValue = 0;
 121                         }
 122                         this.lastPowerLevel = newValue;
 123                         connection.smartHomeCommand(entityId, "setPowerLevel", POWER_LEVEL.propertyName, newValue);
 124                         return true;
 125                     }
 126                 } else if (command.equals(OnOffType.OFF)) {
 127                     lastPowerLevel = 0;
 128                     connection.smartHomeCommand(entityId, "setPowerLevel", POWER_LEVEL.propertyName, 0);
 129                     return true;
 130                 } else if (command.equals(OnOffType.ON)) {
 131                     lastPowerLevel = 100;
 132                     connection.smartHomeCommand(entityId, "setPowerLevel", POWER_LEVEL.propertyName, 100);
 133                     return true;
 134                 } else if (command instanceof PercentType) {
 135                     lastPowerLevel = ((PercentType) command).intValue();
 136                     connection.smartHomeCommand(entityId, "setPowerLevel", POWER_LEVEL.propertyName,
 137                             ((PercentType) command).floatValue() / 100);
 138                     return true;
 139                 }
 140             }
 141         }
 142         return false;
 143     }
 144
 145     @Override
 146     public @Nullable StateDescription findStateDescription(String channelId, StateDescription originalStateDescription,
 147             @Nullable Locale locale) {
 148         return null;
 149     }
 150 }