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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.enocean.internal.eep.A5_11;
  14
  15 import static org.openhab.binding.enocean.internal.EnOceanBindingConstants.*;
  16
  17 import java.util.function.Function;
  18
  19 import org.eclipse.jdt.annotation.NonNullByDefault;
  20 import org.eclipse.jdt.annotation.Nullable;
  21 import org.openhab.binding.enocean.internal.eep.Base._4BSMessage;
  22 import org.openhab.binding.enocean.internal.eep.EEPHelper;
  23 import org.openhab.binding.enocean.internal.messages.ERP1Message;
  24 import org.openhab.core.config.core.Configuration;
  25 import org.openhab.core.library.types.DecimalType;
  26 import org.openhab.core.library.types.OnOffType;
  27 import org.openhab.core.library.types.PercentType;
  28 import org.openhab.core.library.types.QuantityType;
  29 import org.openhab.core.library.unit.Units;
  30 import org.openhab.core.types.State;
  31 import org.openhab.core.types.UnDefType;
  32 import org.openhab.core.util.HexUtils;
  33 import org.slf4j.Logger;
  34 import org.slf4j.LoggerFactory;
  35
  36 /**
  37  *
  38  * @author Vincent Bakker - Initial contribution
  39  */
  40 @NonNullByDefault
  41 public class A5_11_04 extends _4BSMessage {
  42
  43     private enum Error {
  44         NO_ERROR_PRESENT,
  45         LAMP_FAILURE,
  46         INTERNAL_FAILURE,
  47         FAILURE_ON_THE_EXTERNAL_PERIPHERY
  48     }
  49
  50     private enum ParameterMode {
  51         EIGHT_BIT_DIMMER_VALUE_AND_LAMP_OPERATING_HOURS,
  52         RGB_VALUE,
  53         ENERGY_METERING_VALUE,
  54         NOT_USED
  55     }
  56
  57     public enum EnergyUnit {
  58         MILLIWATT,
  59         WATT,
  60         KILOWATT,
  61         MEGAWATT,
  62         WATTHOUR,
  63         KILOWATTHOUR,
  64         MEGAWATTHOUR,
  65         GIGAWATTHOUR,
  66         NOT_SUPPORTED
  67     }
  68
  69     private Logger logger = LoggerFactory.getLogger(A5_11_04.class);
  70
  71     public A5_11_04(ERP1Message packet) {
  72         super(packet);
  73     }
  74
  75     protected boolean isErrorState() {
  76         byte db0 = getDB0();
  77
  78         int state = (db0 >> 4) & 0x03;
  79
  80         if (state != 0) {
  81             // TODO: display error state on thing
  82             logger.warn("Received error {}: {}", state, Error.values()[state]);
  83             return true;
  84         } else {
  85             return false;
  86         }
  87     }
  88
  89     protected ParameterMode getParameterMode() {
  90         int pm = (getDB0() >> 1) & 0x03;
  91         return ParameterMode.values()[pm];
  92     }
  93
  94     protected EnergyUnit getEnergyUnit() {
  95         int unit = getDB1();
  96         if (unit < 8) {
  97             return EnergyUnit.values()[unit];
  98         }
  99
 100         return EnergyUnit.NOT_SUPPORTED;
 101     }
 102
 103     protected State getLightingStatus() {
 104         byte db0 = getDB0();
 105         boolean lightOn = getBit(db0, 0);
 106
 107         return OnOffType.from(lightOn);
 108     }
 109
 110     protected State getDimmerStatus() {
 111         if (getParameterMode() == ParameterMode.EIGHT_BIT_DIMMER_VALUE_AND_LAMP_OPERATING_HOURS) {
 112             return new PercentType(getDB3Value() * 100 / 255);
 113         }
 114         return UnDefType.UNDEF;
 115     }
 116
 117     protected State getEnergyMeasurementData() {
 118         if (getParameterMode() == ParameterMode.ENERGY_METERING_VALUE) {
 119             EnergyUnit unit = getEnergyUnit();
 120
 121             float factor = 1;
 122             switch (unit) {
 123                 case WATTHOUR:
 124                     factor /= 1000;
 125                     break;
 126                 case KILOWATTHOUR:
 127                     factor = 1;
 128                     break;
 129                 case GIGAWATTHOUR:
 130                     factor *= 1000;
 131                 case MEGAWATTHOUR:
 132                     factor *= 1000;
 133                     break;
 134                 default:
 135                     return UnDefType.UNDEF;
 136             }
 137
 138             return new QuantityType<>(
 139                     Long.parseLong(HexUtils.bytesToHex(new byte[] { getDB3(), getDB2() }), 16) * factor,
 140                     Units.KILOWATT_HOUR);
 141         }
 142
 143         return UnDefType.UNDEF;
 144     }
 145
 146     protected State getPowerMeasurementData() {
 147         if (getParameterMode() == ParameterMode.ENERGY_METERING_VALUE) {
 148             EnergyUnit unit = getEnergyUnit();
 149
 150             float factor = 1;
 151             switch (unit) {
 152                 case MILLIWATT:
 153                     factor /= 1000;
 154                     break;
 155                 case WATT:
 156                     factor = 1;
 157                     break;
 158                 case MEGAWATT:
 159                     factor *= 1000;
 160                 case KILOWATT:
 161                     factor *= 1000;
 162                     break;
 163                 default:
 164                     return UnDefType.UNDEF;
 165             }
 166
 167             return new QuantityType<>(
 168                     Long.parseLong(HexUtils.bytesToHex(new byte[] { getDB3(), getDB2() }), 16) * factor, Units.WATT);
 169         }
 170
 171         return UnDefType.UNDEF;
 172     }
 173
 174     protected State getOperatingHours() {
 175         if (getParameterMode() == ParameterMode.EIGHT_BIT_DIMMER_VALUE_AND_LAMP_OPERATING_HOURS) {
 176             return new DecimalType(getDB2Value() << 8 + getDB1Value());
 177         }
 178
 179         return UnDefType.UNDEF;
 180     }
 181
 182     @Override
 183     protected State convertToStateImpl(String channelId, String channelTypeId,
 184             Function<String, @Nullable State> getCurrentStateFunc, Configuration config) {
 185         if (isErrorState()) {
 186             return UnDefType.UNDEF;
 187         }
 188
 189         switch (channelId) {
 190             case CHANNEL_GENERAL_SWITCHING:
 191                 return getLightingStatus();
 192             case CHANNEL_DIMMER:
 193                 return getDimmerStatus();
 194             case CHANNEL_INSTANTPOWER:
 195                 return getPowerMeasurementData();
 196             case CHANNEL_TOTALUSAGE:
 197                 State value = getEnergyMeasurementData();
 198                 State currentState = getCurrentStateFunc.apply(channelId);
 199                 return EEPHelper.validateTotalUsage(value, currentState, config);
 200             case CHANNEL_COUNTER:
 201                 return getOperatingHours();
 202         }
 203
 204         return UnDefType.UNDEF;
 205     }
 206 }