[tuya] Get channel labels from schema label or map from schema code (#18654)

Signed-off-by: Mike Jagdis <mjagdis@eris-associates.co.uk>

bundles/org.openhab.binding.tuya/src/main/java/org/openhab/binding/tuya/internal/cloud/dto/DeviceSchema.java

@@ -36,6 +36,7 @@ public class DeviceSchema {
     public static class Description {
         public String code = "";
         public int dp_id = 0;
+        public String label = "";
         public String type = "";
         public String values = "";
 

bundles/org.openhab.binding.tuya/src/main/java/org/openhab/binding/tuya/internal/handler/TuyaDeviceHandler.java

@@ -70,6 +70,7 @@ import org.openhab.core.types.CommandOption;
 import org.openhab.core.types.RefreshType;
 import org.openhab.core.types.State;
 import org.openhab.core.types.UnDefType;
+import org.openhab.core.util.StringUtils;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
@@ -507,8 +508,20 @@ public class TuyaDeviceHandler extends BaseThingHandler implements DeviceInfoSub
                 return Map.entry("", ChannelBuilder.create(channelUID).build());
             }
 
-            return Map.entry(channelId, callback.createChannelBuilder(channelUID, channeltypeUID).withLabel(channelId)
-                    .withConfiguration(new Configuration(configuration)).build());
+            if (schemaDp.label.isEmpty()) {
+                schemaDp.label = schemaDp.code;
+
+                String label = StringUtils.capitalizeByWhitespace(schemaDp.code.replaceAll("_", " "));
+                if (label != null) {
+                    label = label.trim();
+                    if (!label.isEmpty()) {
+                        schemaDp.label = label;
+                    }
+                }
+            }
+
+            return Map.entry(channelId, callback.createChannelBuilder(channelUID, channeltypeUID)
+                    .withLabel(schemaDp.label).withConfiguration(new Configuration(configuration)).build());
         }).filter(c -> !c.getKey().isEmpty()).collect(Collectors.toMap(Map.Entry::getKey, Map.Entry::getValue)));
 
         List<String> channelSuffixes = List.of("", "_1", "_2");

bundles/org.openhab.binding.tuya/src/main/java/org/openhab/binding/tuya/internal/util/SchemaDp.java

@@ -39,6 +39,7 @@ public class SchemaDp {
     public int id = 0;
     public String code = "";
     public String type = "";
+    public String label = "";
     public @Nullable Double min;
     public @Nullable Double max;
     public @Nullable List<String> range;