Add laundry weight channel for washing machine (#16514)

Signed-off-by: Jacob Laursen <jacob-github@vindvejr.dk>

bundles/org.openhab.binding.miele/README.md

@@ -370,6 +370,7 @@ See oven.
 | spinningspeed       | String               | Read       | Spinning speed in the program running on the appliance               |
 | energyConsumption   | Number:Energy        | Read       | Energy consumption by the currently running program on the appliance |
 | waterConsumption    | Number:Volume        | Read       | Water consumption by the currently running program on the appliance  |
+| laundryWeight       | Number:Mass          | Read       | Weight of the laundry inside the appliance                           |
 
 ##### Programs
 

bundles/org.openhab.binding.miele/src/main/java/org/openhab/binding/miele/internal/MieleBindingConstants.java

@@ -60,6 +60,7 @@ public class MieleBindingConstants {
     public static final String FINISH_CHANNEL_ID = "finish";
     public static final String ENERGY_CONSUMPTION_CHANNEL_ID = "energyConsumption";
     public static final String WATER_CONSUMPTION_CHANNEL_ID = "waterConsumption";
+    public static final String LAUNDRY_WEIGHT_CHANNEL_ID = "laundryWeight";
 
     // List of all Thing Type UIDs
     public static final ThingTypeUID THING_TYPE_XGW3000 = new ThingTypeUID(BINDING_ID, "xgw3000");

bundles/org.openhab.binding.miele/src/main/java/org/openhab/binding/miele/internal/handler/WashingMachineChannelSelector.java

@@ -143,7 +143,8 @@ public enum WashingMachineChannelSelector implements ApplianceChannelSelector {
     ENERGY_CONSUMPTION(EXTENDED_DEVICE_STATE_PROPERTY_NAME, ENERGY_CONSUMPTION_CHANNEL_ID, QuantityType.class, false,
             true),
     WATER_CONSUMPTION(EXTENDED_DEVICE_STATE_PROPERTY_NAME, WATER_CONSUMPTION_CHANNEL_ID, QuantityType.class, false,
-            true);
+            true),
+    LAUNDRY_WEIGHT(EXTENDED_DEVICE_STATE_PROPERTY_NAME, LAUNDRY_WEIGHT_CHANNEL_ID, QuantityType.class, false, true);
 
     private final Logger logger = LoggerFactory.getLogger(WashingMachineChannelSelector.class);
 

bundles/org.openhab.binding.miele/src/main/java/org/openhab/binding/miele/internal/handler/WashingMachineHandler.java

@@ -24,6 +24,7 @@ import org.openhab.core.i18n.TimeZoneProvider;
 import org.openhab.core.i18n.TranslationProvider;
 import org.openhab.core.library.types.OnOffType;
 import org.openhab.core.library.types.QuantityType;
+import org.openhab.core.library.unit.SIUnits;
 import org.openhab.core.library.unit.Units;
 import org.openhab.core.thing.ChannelUID;
 import org.openhab.core.thing.Thing;
@@ -47,6 +48,7 @@ import com.google.gson.JsonElement;
 public class WashingMachineHandler extends MieleApplianceHandler<WashingMachineChannelSelector>
         implements ExtendedDeviceStateListener {
 
+    private static final int LAUNDRY_WEIGHT_BYTE_POSITION = 44;
     private static final int ENERGY_CONSUMPTION_BYTE_POSITION = 51;
     private static final int WATER_CONSUMPTION_BYTE_POSITION = 53;
     private static final int EXTENDED_STATE_MIN_SIZE_BYTES = 54;
@@ -136,5 +138,11 @@ public class WashingMachineHandler extends MieleApplianceHandler<WashingMachineC
         var litres = new QuantityType<>(BigDecimal.valueOf(extendedDeviceState[WATER_CONSUMPTION_BYTE_POSITION] & 0xff),
                 Units.LITRE);
         updateExtendedState(WATER_CONSUMPTION_CHANNEL_ID, litres);
+
+        var weight = new QuantityType<>(
+                BigDecimal.valueOf(256 * (extendedDeviceState[LAUNDRY_WEIGHT_BYTE_POSITION] & 0xff)
+                        + (extendedDeviceState[LAUNDRY_WEIGHT_BYTE_POSITION + 1] & 0xff)),
+                SIUnits.GRAM);
+        updateExtendedState(LAUNDRY_WEIGHT_CHANNEL_ID, weight);
     }
 }

bundles/org.openhab.binding.miele/src/main/resources/OH-INF/i18n/miele.properties

@@ -85,6 +85,8 @@ channel-type.miele.heat.label = Remaining Heat
 channel-type.miele.heat.description = Remaining heat level of the heating zone/plate
 channel-type.miele.info.label = Signal Information
 channel-type.miele.info.description = Signals information, check appliance for details
+channel-type.miele.laundry-weight.label = Laundry Weight
+channel-type.miele.laundry-weight.description = Weight of the laundry inside the appliance
 channel-type.miele.phase.label = Phase
 channel-type.miele.phase.description = Current phase of the program running on the appliance
 channel-type.miele.plates.label = Plates

bundles/org.openhab.binding.miele/src/main/resources/OH-INF/thing/channeltypes.xml

@@ -263,4 +263,11 @@
 		<state readOnly="true" pattern="%.1f l"/>
 	</channel-type>
 
+	<channel-type id="laundry-weight" advanced="true">
+		<item-type>Number:Mass</item-type>
+		<label>Laundry Weight</label>
+		<description>Weight of the laundry inside the appliance</description>
+		<state readOnly="true" pattern="%.3f %unit%"/>
+	</channel-type>
+
 </thing:thing-descriptions>

bundles/org.openhab.binding.miele/src/main/resources/OH-INF/thing/washingmachine.xml

@@ -37,10 +37,11 @@
 			<channel id="spinningspeed" typeId="spinningspeed"/>
 			<channel id="energyConsumption" typeId="energy-consumption"/>
 			<channel id="waterConsumption" typeId="water-consumption"/>
+			<channel id="laundryWeight" typeId="laundry-weight"/>
 		</channels>
 
 		<properties>
-			<property name="thingTypeVersion">2</property>
+			<property name="thingTypeVersion">3</property>
 		</properties>
 
 		<representation-property>uid</representation-property>

bundles/org.openhab.binding.miele/src/main/resources/OH-INF/update/instructions.xml

@@ -96,6 +96,11 @@
 				<type>miele:failure</type>
 			</add-channel>
 		</instruction-set>
+		<instruction-set targetVersion="3">
+			<add-channel id="laundryWeight">
+				<type>miele:laundry-weight</type>
+			</add-channel>
+		</instruction-set>
 	</thing-type>
 
 </update:update-descriptions>