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   1 /**
   2  * Copyright (c) 2010-2024 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.homewizard.internal;
  14
  15 import java.time.DateTimeException;
  16 import java.time.ZoneId;
  17 import java.time.ZonedDateTime;
  18
  19 import org.eclipse.jdt.annotation.NonNullByDefault;
  20 import org.openhab.core.library.types.DateTimeType;
  21 import org.openhab.core.library.types.QuantityType;
  22 import org.openhab.core.library.unit.SIUnits;
  23 import org.openhab.core.library.unit.Units;
  24 import org.openhab.core.thing.ChannelUID;
  25 import org.openhab.core.thing.Thing;
  26 import org.openhab.core.types.Command;
  27
  28 /**
  29  * The {@link HomeWizardP1MeterHandler} implements functionality to handle a HomeWizard P1 Meter.
  30  *
  31  * @author Daniël van Os - Initial contribution
  32  */
  33 @NonNullByDefault
  34 public class HomeWizardP1MeterHandler extends HomeWizardDeviceHandler {
  35
  36     private String meterModel = "";
  37     private int meterVersion = 0;
  38
  39     /**
  40      * Constructor
  41      *
  42      * @param thing The thing to handle
  43      */
  44     public HomeWizardP1MeterHandler(Thing thing) {
  45         super(thing);
  46     }
  47
  48     /**
  49      * Not listening to any commands.
  50      */
  51     @Override
  52     public void handleCommand(ChannelUID channelUID, Command command) {
  53     }
  54
  55     /**
  56      * Device specific handling of the returned payload.
  57      *
  58      * @param payload The data parsed from the Json file
  59      */
  60     @Override
  61     protected void handleDataPayload(DataPayload payload) {
  62         if (!meterModel.equals(payload.getMeterModel())) {
  63             meterModel = payload.getMeterModel();
  64             updateProperty(HomeWizardBindingConstants.PROPERTY_METER_MODEL, meterModel);
  65         }
  66
  67         if (meterVersion != payload.getSmrVersion()) {
  68             meterVersion = payload.getSmrVersion();
  69             updateProperty(HomeWizardBindingConstants.PROPERTY_METER_VERSION, String.format("%d", meterVersion));
  70         }
  71
  72         updateState(HomeWizardBindingConstants.CHANNEL_ENERGY_IMPORT_T1,
  73                 new QuantityType<>(payload.getTotalEnergyImportT1Kwh(), Units.KILOWATT_HOUR));
  74         updateState(HomeWizardBindingConstants.CHANNEL_ENERGY_IMPORT_T2,
  75                 new QuantityType<>(payload.getTotalEnergyImportT2Kwh(), Units.KILOWATT_HOUR));
  76         updateState(HomeWizardBindingConstants.CHANNEL_ENERGY_EXPORT_T1,
  77                 new QuantityType<>(payload.getTotalEnergyExportT1Kwh(), Units.KILOWATT_HOUR));
  78         updateState(HomeWizardBindingConstants.CHANNEL_ENERGY_EXPORT_T2,
  79                 new QuantityType<>(payload.getTotalEnergyExportT2Kwh(), Units.KILOWATT_HOUR));
  80
  81         updateState(HomeWizardBindingConstants.CHANNEL_ACTIVE_POWER,
  82                 new QuantityType<>(payload.getActivePowerW(), Units.WATT));
  83         updateState(HomeWizardBindingConstants.CHANNEL_ACTIVE_POWER_L1,
  84                 new QuantityType<>(payload.getActivePowerL1W(), Units.WATT));
  85         updateState(HomeWizardBindingConstants.CHANNEL_ACTIVE_POWER_L2,
  86                 new QuantityType<>(payload.getActivePowerL2W(), Units.WATT));
  87         updateState(HomeWizardBindingConstants.CHANNEL_ACTIVE_POWER_L3,
  88                 new QuantityType<>(payload.getActivePowerL3W(), Units.WATT));
  89
  90         // If no data from the gas meter is present, the json value will be null, which means gson ignores it,
  91         // leaving the value in the payload object at 0.
  92         long dtv = payload.getGasTimestamp();
  93         if (dtv > 0) {
  94             updateState(HomeWizardBindingConstants.CHANNEL_TOTAL_GAS,
  95                     new QuantityType<>(payload.getTotalGasM3(), SIUnits.CUBIC_METRE));
  96
  97             // 210119164000
  98             int seconds = (int) (dtv % 100);
  99
 100             dtv /= 100;
 101             int minutes = (int) (dtv % 100);
 102
 103             dtv /= 100;
 104             int hours = (int) (dtv % 100);
 105
 106             dtv /= 100;
 107             int day = (int) (dtv % 100);
 108
 109             dtv /= 100;
 110             int month = (int) (dtv % 100);
 111
 112             dtv /= 100;
 113             int year = (int) (dtv + 2000);
 114
 115             try {
 116                 DateTimeType dtt = new DateTimeType(
 117                         ZonedDateTime.of(year, month, day, hours, minutes, seconds, 0, ZoneId.systemDefault()));
 118                 updateState(HomeWizardBindingConstants.CHANNEL_GAS_TIMESTAMP, dtt);
 119                 updateState(HomeWizardBindingConstants.CHANNEL_TOTAL_GAS,
 120                         new QuantityType<>(payload.getTotalGasM3(), SIUnits.CUBIC_METRE));
 121             } catch (DateTimeException e) {
 122                 logger.warn("Unable to parse Gas timestamp: {}", payload.getGasTimestamp());
 123             }
 124         }
 125     }
 126 }