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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.lutron.internal.radiora.handler;
  14
  15 import java.util.concurrent.atomic.AtomicBoolean;
  16 import java.util.concurrent.atomic.AtomicInteger;
  17
  18 import org.eclipse.jdt.annotation.NonNullByDefault;
  19 import org.openhab.binding.lutron.internal.LutronBindingConstants;
  20 import org.openhab.binding.lutron.internal.radiora.config.DimmerConfig;
  21 import org.openhab.binding.lutron.internal.radiora.protocol.LocalZoneChangeFeedback;
  22 import org.openhab.binding.lutron.internal.radiora.protocol.RadioRAFeedback;
  23 import org.openhab.binding.lutron.internal.radiora.protocol.SetDimmerLevelCommand;
  24 import org.openhab.binding.lutron.internal.radiora.protocol.SetSwitchLevelCommand;
  25 import org.openhab.binding.lutron.internal.radiora.protocol.ZoneMapFeedback;
  26 import org.openhab.core.library.types.OnOffType;
  27 import org.openhab.core.library.types.PercentType;
  28 import org.openhab.core.thing.ChannelUID;
  29 import org.openhab.core.thing.Thing;
  30 import org.openhab.core.types.Command;
  31
  32 /**
  33  * Handler for RadioRA dimmers
  34  *
  35  * @author Jeff Lauterbach - Initial Contribution
  36  *
  37  */
  38 @NonNullByDefault
  39 public class DimmerHandler extends LutronHandler {
  40
  41     /**
  42      * Used to internally keep track of dimmer level. This helps us better respond
  43      * to external dimmer changes since RadioRA protocol does not send dimmer
  44      * levels in their messages.
  45      */
  46     private @NonNullByDefault({}) DimmerConfig config;
  47     private AtomicInteger lastKnownIntensity = new AtomicInteger(100);
  48     private AtomicBoolean switchEnabled = new AtomicBoolean(false);
  49
  50     public DimmerHandler(Thing thing) {
  51         super(thing);
  52     }
  53
  54     @Override
  55     public void initialize() {
  56         config = getConfigAs(DimmerConfig.class);
  57         super.initialize();
  58     }
  59
  60     @Override
  61     public void handleCommand(ChannelUID channelUID, Command command) {
  62         RS232Handler bridgeHandler = getRS232Handler();
  63         if (bridgeHandler == null) {
  64             return;
  65         }
  66
  67         if (LutronBindingConstants.CHANNEL_LIGHTLEVEL.equals(channelUID.getId())) {
  68             if (command instanceof PercentType) {
  69                 int intensity = ((PercentType) command).intValue();
  70
  71                 SetDimmerLevelCommand cmd = new SetDimmerLevelCommand(config.getZoneNumber(), intensity, config.system);
  72                 bridgeHandler.sendCommand(cmd);
  73
  74                 updateInternalState(intensity);
  75             }
  76
  77             if (command instanceof OnOffType) {
  78                 OnOffType onOffCmd = (OnOffType) command;
  79
  80                 SetSwitchLevelCommand cmd = new SetSwitchLevelCommand(config.getZoneNumber(), onOffCmd, config.system);
  81                 bridgeHandler.sendCommand(cmd);
  82
  83                 updateInternalState(onOffCmd);
  84             }
  85         }
  86     }
  87
  88     @Override
  89     public void handleFeedback(RadioRAFeedback feedback) {
  90         if (feedback instanceof LocalZoneChangeFeedback) {
  91             handleLocalZoneChangeFeedback((LocalZoneChangeFeedback) feedback);
  92         } else if (feedback instanceof ZoneMapFeedback) {
  93             handleZoneMapFeedback((ZoneMapFeedback) feedback);
  94         }
  95     }
  96
  97     private void handleZoneMapFeedback(ZoneMapFeedback feedback) {
  98         if (!systemsMatch(feedback.getSystem(), config.system)) {
  99             return;
 100         }
 101         char value = feedback.getZoneValue(config.getZoneNumber());
 102         if (value == '1') {
 103             turnDimmerOnToLastKnownIntensity();
 104         } else if (value == '0') {
 105             turnDimmerOff();
 106         }
 107     }
 108
 109     private void handleLocalZoneChangeFeedback(LocalZoneChangeFeedback feedback) {
 110         if (systemsMatch(feedback.getSystem(), config.system) && feedback.getZoneNumber() == config.getZoneNumber()) {
 111             if (LocalZoneChangeFeedback.State.ON.equals(feedback.getState())) {
 112                 turnDimmerOnToLastKnownIntensity();
 113             } else if (LocalZoneChangeFeedback.State.OFF.equals(feedback.getState())) {
 114                 turnDimmerOff();
 115             }
 116
 117         }
 118     }
 119
 120     private void turnDimmerOnToLastKnownIntensity() {
 121         if (!switchEnabled.get()) {
 122             updateState(LutronBindingConstants.CHANNEL_LIGHTLEVEL, new PercentType(lastKnownIntensity.get()));
 123         }
 124         switchEnabled.set(true);
 125     }
 126
 127     private void turnDimmerOff() {
 128         updateState(LutronBindingConstants.CHANNEL_LIGHTLEVEL, PercentType.ZERO);
 129         switchEnabled.set(false);
 130     }
 131
 132     private void updateInternalState(int intensity) {
 133         if (intensity > 0) {
 134             lastKnownIntensity.set(intensity);
 135         }
 136         switchEnabled.set(intensity > 0);
 137     }
 138
 139     private void updateInternalState(OnOffType type) {
 140         switchEnabled.set(OnOffType.ON.equals(type));
 141     }
 142 }