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   1 /**
   2  * Copyright (c) 2010-2020 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_COLOR;
  16 import static org.openhab.binding.amazonechocontrol.internal.smarthome.Constants.ITEM_TYPE_STRING;
  17
  18 import java.io.IOException;
  19 import java.util.List;
  20 import java.util.Locale;
  21
  22 import org.eclipse.jdt.annotation.NonNullByDefault;
  23 import org.eclipse.jdt.annotation.Nullable;
  24 import org.openhab.binding.amazonechocontrol.internal.AmazonEchoControlBindingConstants;
  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.DecimalType;
  29 import org.openhab.core.library.types.HSBType;
  30 import org.openhab.core.library.types.PercentType;
  31 import org.openhab.core.library.types.StringType;
  32 import org.openhab.core.thing.type.ChannelTypeUID;
  33 import org.openhab.core.types.Command;
  34 import org.openhab.core.types.StateDescription;
  35 import org.openhab.core.types.UnDefType;
  36
  37 import com.google.gson.JsonObject;
  38
  39 /**
  40  * The {@link HandlerColorController} is responsible for the Alexa.ColorTemperatureController
  41  *
  42  * @author Lukas Knoeller - Initial contribution
  43  * @author Michael Geramb - Initial contribution
  44  */
  45 @NonNullByDefault
  46 public class HandlerColorController extends HandlerBase {
  47     // Interface
  48     public static final String INTERFACE = "Alexa.ColorController";
  49     public static final String INTERFACE_COLOR_PROPERTIES = "Alexa.ColorPropertiesController";
  50
  51     // Channel types
  52     private static final ChannelTypeUID CHANNEL_TYPE_COLOR_NAME = new ChannelTypeUID(
  53             AmazonEchoControlBindingConstants.BINDING_ID, "colorName");
  54
  55     private static final ChannelTypeUID CHANNEL_TYPE_COLOR = new ChannelTypeUID(
  56             AmazonEchoControlBindingConstants.BINDING_ID, "color");
  57
  58     // Channel and Properties
  59     private static final ChannelInfo COLOR = new ChannelInfo("color" /* propertyName */, "color" /* ChannelId */,
  60             CHANNEL_TYPE_COLOR /* Channel Type */, ITEM_TYPE_COLOR /* Item Type */);
  61
  62     private static final ChannelInfo COLOR_PROPERTIES = new ChannelInfo("colorProperties" /* propertyName */,
  63             "colorName" /* ChannelId */, CHANNEL_TYPE_COLOR_NAME /* Channel Type */, ITEM_TYPE_STRING /* Item Type */);
  64
  65     private @Nullable HSBType lastColor;
  66     private @Nullable String lastColorName;
  67
  68     @Override
  69     public String[] getSupportedInterface() {
  70         return new String[] { INTERFACE, INTERFACE_COLOR_PROPERTIES };
  71     }
  72
  73     @Override
  74     protected ChannelInfo @Nullable [] findChannelInfos(SmartHomeCapability capability, String property) {
  75         if (COLOR.propertyName.contentEquals(property)) {
  76             return new ChannelInfo[] { COLOR, COLOR_PROPERTIES };
  77         }
  78         return null;
  79     }
  80
  81     @Override
  82     public void updateChannels(String interfaceName, List<JsonObject> stateList, UpdateChannelResult result) {
  83         if (INTERFACE.equals(interfaceName)) {
  84             // WRITING TO THIS CHANNEL DOES CURRENTLY NOT WORK, BUT WE LEAVE THE CODE FOR FUTURE USE!
  85             HSBType colorValue = null;
  86             for (JsonObject state : stateList) {
  87                 if (COLOR.propertyName.equals(state.get("name").getAsString())) {
  88                     JsonObject value = state.get("value").getAsJsonObject();
  89                     // For groups take the maximum
  90                     if (colorValue == null) {
  91                         colorValue = new HSBType(new DecimalType(value.get("hue").getAsInt()),
  92                                 new PercentType(value.get("saturation").getAsInt() * 100),
  93                                 new PercentType(value.get("brightness").getAsInt() * 100));
  94                     }
  95                 }
  96             }
  97             if (colorValue != null) {
  98                 if (!colorValue.equals(lastColor)) {
  99                     result.needSingleUpdate = true;
 100                     lastColor = colorValue;
 101                 }
 102             }
 103             updateState(COLOR.channelId, colorValue == null ? UnDefType.UNDEF : colorValue);
 104         }
 105         if (INTERFACE_COLOR_PROPERTIES.equals(interfaceName)) {
 106             String colorNameValue = null;
 107             for (JsonObject state : stateList) {
 108                 if (COLOR_PROPERTIES.propertyName.equals(state.get("name").getAsString())) {
 109                     if (colorNameValue == null) {
 110                         result.needSingleUpdate = false;
 111                         colorNameValue = state.get("value").getAsJsonObject().get("name").getAsString();
 112                     }
 113                 }
 114             }
 115             if (colorNameValue == null && lastColorName != null) {
 116                 colorNameValue = lastColorName;
 117             }
 118             lastColorName = colorNameValue;
 119             updateState(COLOR_PROPERTIES.channelId,
 120                     lastColorName == null ? UnDefType.UNDEF : new StringType(lastColorName));
 121         }
 122     }
 123
 124     @Override
 125     public boolean handleCommand(Connection connection, SmartHomeDevice shd, String entityId,
 126             SmartHomeCapability[] capabilties, String channelId, Command command)
 127             throws IOException, InterruptedException {
 128         if (channelId.equals(COLOR.channelId)) {
 129             if (containsCapabilityProperty(capabilties, COLOR.propertyName)) {
 130                 if (command instanceof HSBType) {
 131                     HSBType color = ((HSBType) command);
 132                     JsonObject colorObject = new JsonObject();
 133                     colorObject.addProperty("hue", color.getHue());
 134                     colorObject.addProperty("saturation", color.getSaturation().floatValue() / 100);
 135                     colorObject.addProperty("brightness", color.getBrightness().floatValue() / 100);
 136                     connection.smartHomeCommand(entityId, "setColor", "value", colorObject);
 137                 }
 138             }
 139         }
 140         if (channelId.equals(COLOR_PROPERTIES.channelId)) {
 141             if (containsCapabilityProperty(capabilties, COLOR.propertyName)) {
 142                 if (command instanceof StringType) {
 143                     String colorName = command.toFullString();
 144                     if (!colorName.isEmpty()) {
 145                         lastColorName = colorName;
 146                         connection.smartHomeCommand(entityId, "setColor", "colorName", colorName);
 147                         return true;
 148                     }
 149                 }
 150             }
 151         }
 152         return false;
 153     }
 154
 155     @Override
 156     public @Nullable StateDescription findStateDescription(String channelId, StateDescription originalStateDescription,
 157             @Nullable Locale locale) {
 158         return null;
 159     }
 160 }