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   1 /**
   2  * Copyright (c) 2010-2021 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.*;
  16
  17 import java.io.IOException;
  18 import java.util.List;
  19 import java.util.Locale;
  20
  21 import javax.measure.quantity.Temperature;
  22
  23 import org.eclipse.jdt.annotation.NonNullByDefault;
  24 import org.eclipse.jdt.annotation.Nullable;
  25 import org.openhab.binding.amazonechocontrol.internal.Connection;
  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.QuantityType;
  29 import org.openhab.core.library.unit.ImperialUnits;
  30 import org.openhab.core.library.unit.SIUnits;
  31 import org.openhab.core.types.Command;
  32 import org.openhab.core.types.StateDescription;
  33 import org.openhab.core.types.UnDefType;
  34
  35 import com.google.gson.JsonObject;
  36
  37 /**
  38  * The {@link HandlerThermostatController} is responsible for the Alexa.ThermostatControllerInterface
  39  *
  40  * @author Sven Killig - Initial contribution
  41  */
  42 @NonNullByDefault
  43 public class HandlerThermostatController extends HandlerBase {
  44     // Interface
  45     public static final String INTERFACE = "Alexa.ThermostatController";
  46     // Channel definitions
  47     private static final ChannelInfo TARGET_SETPOINT = new ChannelInfo("targetSetpoint" /* propertyName */ ,
  48             "targetSetpoint" /* ChannelId */, CHANNEL_TYPE_TEMPERATURE /* Channel Type */ ,
  49             ITEM_TYPE_NUMBER_TEMPERATURE /* Item Type */);
  50
  51     @Override
  52     public String[] getSupportedInterface() {
  53         return new String[] { INTERFACE };
  54     }
  55
  56     @Override
  57     protected ChannelInfo @Nullable [] findChannelInfos(SmartHomeCapability capability, String property) {
  58         if (TARGET_SETPOINT.propertyName.equals(property)) {
  59             return new ChannelInfo[] { TARGET_SETPOINT };
  60         }
  61         return null;
  62     }
  63
  64     @Override
  65     public void updateChannels(String interfaceName, List<JsonObject> stateList, UpdateChannelResult result) {
  66         QuantityType<Temperature> temperatureValue = null;
  67         for (JsonObject state : stateList) {
  68             if (TARGET_SETPOINT.propertyName.equals(state.get("name").getAsString())) {
  69                 JsonObject value = state.get("value").getAsJsonObject();
  70                 // For groups take the first
  71                 if (temperatureValue == null) {
  72                     float temperature = value.get("value").getAsFloat();
  73                     String scale = value.get("scale").getAsString().toUpperCase();
  74                     if ("CELSIUS".equals(scale)) {
  75                         temperatureValue = new QuantityType<Temperature>(temperature, SIUnits.CELSIUS);
  76                     } else {
  77                         temperatureValue = new QuantityType<Temperature>(temperature, ImperialUnits.FAHRENHEIT);
  78                     }
  79                 }
  80             }
  81         }
  82         updateState(TARGET_SETPOINT.channelId, temperatureValue == null ? UnDefType.UNDEF : temperatureValue);
  83     }
  84
  85     @Override
  86     public boolean handleCommand(Connection connection, SmartHomeDevice shd, String entityId,
  87             SmartHomeCapability[] capabilties, String channelId, Command command)
  88             throws IOException, InterruptedException {
  89         if (channelId.equals(TARGET_SETPOINT.channelId)) {
  90             if (containsCapabilityProperty(capabilties, TARGET_SETPOINT.propertyName)) {
  91                 if (command instanceof QuantityType) {
  92                     connection.smartHomeCommand(entityId, "setTargetTemperature", "targetTemperature", command);
  93                     return true;
  94                 }
  95             }
  96         }
  97         return false;
  98     }
  99
 100     @Override
 101     public @Nullable StateDescription findStateDescription(String channelId, StateDescription originalStateDescription,
 102             @Nullable Locale locale) {
 103         return null;
 104     }
 105 }