Clean up custom block api a bit

api/geyser/src/main/java/org/geysermc/geyser/api/block/custom/CustomBlockData.java

@@ -53,13 +53,12 @@ public interface CustomBlockData {
 
         Builder components(@NonNull CustomBlockComponents components);
 
-        Builder booleanProperty(@NonNull String propertyName, List<Boolean> values);
+        Builder booleanProperty(@NonNull String propertyName);
 
         Builder intProperty(@NonNull String propertyName, List<Integer> values);
 
         Builder stringProperty(@NonNull String propertyName, List<String> values);
 
-
         Builder permutations(@NonNull List<CustomBlockPermutation> permutations);
 
         CustomBlockData build();

api/geyser/src/main/java/org/geysermc/geyser/api/block/custom/CustomBlockState.java

@@ -30,6 +30,8 @@ import org.checkerframework.checker.nullness.qual.NonNull;
 import java.util.Map;
 
 public interface CustomBlockState {
+    @NonNull CustomBlockData block();
+
     @NonNull String name();
 
     @NonNull <T> T property(String propertyName);

api/geyser/src/main/java/org/geysermc/geyser/api/block/custom/property/CustomBlockProperty.java

@@ -34,5 +34,5 @@ public interface CustomBlockProperty<T> {
 
     @NonNull List<T> values();
 
-    @NonNull PropertyType<T> type();
+    @NonNull PropertyType type();
 }

api/geyser/src/main/java/org/geysermc/geyser/api/block/custom/property/PropertyType.java

@@ -25,18 +25,17 @@
 
 package org.geysermc.geyser.api.block.custom.property;
 
-public class PropertyType<T> {
-    public static final PropertyType<Boolean> BOOLEAN = new PropertyType<>(Boolean.class);
-    public static final PropertyType<Integer> INTEGER = new PropertyType<>(Integer.class);
-    public static final PropertyType<String> STRING = new PropertyType<>(String.class);
+import lombok.Getter;
 
+public class PropertyType {
+    public static final PropertyType BOOLEAN = new PropertyType(Boolean.class);
+    public static final PropertyType INTEGER = new PropertyType(Integer.class);
+    public static final PropertyType STRING = new PropertyType(String.class);
+
+    @Getter
     private final Class<?> typeClass;
 
     private PropertyType(Class<?> typeClass) {
         this.typeClass = typeClass;
     }
-
-    public Class<?> getTypeClass() {
-        return typeClass;
-    }
 }

core/src/main/java/org/geysermc/geyser/level/block/GeyserCustomBlockData.java

@@ -28,6 +28,8 @@ package org.geysermc.geyser.level.block;
 import it.unimi.dsi.fastutil.objects.Object2ObjectMaps;
 import it.unimi.dsi.fastutil.objects.Object2ObjectOpenHashMap;
 import it.unimi.dsi.fastutil.objects.ObjectLists;
+import lombok.AccessLevel;
+import lombok.AllArgsConstructor;
 import lombok.Value;
 import org.checkerframework.checker.nullness.qual.NonNull;
 import org.geysermc.geyser.api.block.custom.CustomBlockData;
@@ -41,7 +43,11 @@ import java.util.List;
 import java.util.Map;
 
 @Value
+@AllArgsConstructor(access = AccessLevel.PRIVATE)
 public class GeyserCustomBlockData implements CustomBlockData {
+
+    public static final String GEYSER_NAMESPACE = "geyser:";
+
     String name;
     CustomBlockComponents components;
     Map<String, CustomBlockProperty<?>> properties;
@@ -54,7 +60,7 @@ public class GeyserCustomBlockData implements CustomBlockData {
 
     @Override
     public @NonNull String identifier() {
-        return "geyser:" + name;
+        return GEYSER_NAMESPACE + name;
     }
 
     @Override
@@ -96,8 +102,8 @@ public class GeyserCustomBlockData implements CustomBlockData {
         }
 
         @Override
-        public Builder booleanProperty(@NonNull String propertyName, List<Boolean> values) {
-            this.properties.put(propertyName, new GeyserCustomBlockProperty<>(propertyName, values, PropertyType.BOOLEAN));
+        public Builder booleanProperty(@NonNull String propertyName) {
+            this.properties.put(propertyName, new GeyserCustomBlockProperty<>(propertyName, List.of(false, true), PropertyType.BOOLEAN));
             return this;
         }
 
@@ -131,6 +137,9 @@ public class GeyserCustomBlockData implements CustomBlockData {
                     if (property.values().isEmpty() || property.values().size() > 16) {
                         throw new IllegalArgumentException(property.name() + " must contain 1 to 16 values.");
                     }
+                    if (property.values().stream().distinct().count() != property.values().size()) {
+                        throw new IllegalArgumentException(property.name() + " has duplicate values.");
+                    }
                 }
             }
             if (permutations == null) {

core/src/main/java/org/geysermc/geyser/level/block/GeyserCustomBlockProperty.java

@@ -31,30 +31,6 @@ import org.geysermc.geyser.api.block.custom.property.PropertyType;
 
 import java.util.List;
 
-public class GeyserCustomBlockProperty<T> implements CustomBlockProperty<T> {
-    private final String name;
-    private final List<T> values;
-
-    private final PropertyType<T> type;
-
-    public GeyserCustomBlockProperty(String name, List<T> values, PropertyType<T> type) {
-        this.name = name;
-        this.values = values;
-        this.type = type;
-    }
-
-    @Override
-    public @NonNull String name() {
-        return name;
-    }
-
-    @Override
-    public @NonNull List<T> values(){
-        return values;
-    }
-
-    @Override
-    public @NonNull PropertyType<T> type() {
-        return type;
-    }
+public record GeyserCustomBlockProperty<T>(@NonNull String name, @NonNull List<T> values,
+                                           @NonNull PropertyType type) implements CustomBlockProperty<T> {
 }

core/src/main/java/org/geysermc/geyser/level/block/GeyserCustomBlockState.java

@@ -39,12 +39,17 @@ import java.util.Map;
 
 @Value
 public class GeyserCustomBlockState implements CustomBlockState {
-    String name;
+    CustomBlockData block;
     Map<String, Object> properties;
 
+    @Override
+    public @NonNull CustomBlockData block() {
+        return block;
+    }
+
     @Override
     public @NonNull String name() {
-        return name;
+        return block.name();
     }
 
     @SuppressWarnings("unchecked")
@@ -97,11 +102,11 @@ public class GeyserCustomBlockState implements CustomBlockState {
                 if (property == null) {
                     throw new IllegalArgumentException("Unknown property: " + propertyName);
                 } else if (!property.values().contains(propertyValue)) {
-                    throw new IllegalArgumentException("Invalid value for property: " + propertyName + " Value: " + propertyValue);
+                    throw new IllegalArgumentException("Invalid value: " + propertyValue + " for property: " + propertyName);
                 }
             }
 
-            return new GeyserCustomBlockState(blockData.name(), Object2ObjectMaps.unmodifiable(properties));
+            return new GeyserCustomBlockState(blockData, Object2ObjectMaps.unmodifiable(properties));
         }
     }
 }

core/src/main/java/org/geysermc/geyser/registry/populator/BlockRegistryPopulator.java

@@ -135,7 +135,7 @@ public class BlockRegistryPopulator {
                     .putInt("version", stateVersion)
                     .putCompound("states", states)
                     .build());
-            customExtBlockStates.add(new GeyserCustomBlockState(customBlock.name(), states));
+            customExtBlockStates.add(new GeyserCustomBlockState(customBlock, states));
         }
     }