Expand further on BlockData

src/main/java/me/libraryaddict/disguise/utilities/params/ParamInfoTypes.java

@@ -79,7 +79,7 @@ public class ParamInfoTypes {
                     "The different particles of Minecraft", Particle.values(), getMaterials()));
             paramInfos.add(new ParamInfoEnum(TropicalFish.Pattern.class, "Pattern", "Patterns of a tropical fish"));
             paramInfos.add(new ParamInfoBlockData(BlockData.class, "BlockData",
-                    "The block data states, barrel[facing=north,open=false] as example"));
+                    "The block data states, barrel[facing=north,open=false] as example", getMaterials()));
         } else {
             paramInfos.add(new ParamInfoEnum(Particle.class, "Particle", "The different particles of Minecraft"));
         }

src/main/java/me/libraryaddict/disguise/utilities/params/types/custom/ParamInfoBlockData.java

@@ -1,16 +1,57 @@
 package me.libraryaddict.disguise.utilities.params.types.custom;
 
+import com.google.common.cache.Cache;
+import com.google.common.cache.CacheBuilder;
 import me.libraryaddict.disguise.utilities.params.ParamInfo;
 import me.libraryaddict.disguise.utilities.parser.DisguiseParseException;
+import me.libraryaddict.disguise.utilities.reflection.NmsVersion;
 import org.bukkit.Bukkit;
+import org.bukkit.Material;
 import org.bukkit.block.data.BlockData;
+import org.bukkit.block.data.type.Stairs;
+
+import java.util.Arrays;
+import java.util.HashSet;
+import java.util.Map;
+import java.util.Set;
+import java.util.concurrent.TimeUnit;
 
 /**
  * Created by libraryaddict on 12/08/2020.
  */
 public class ParamInfoBlockData extends ParamInfo {
-    public ParamInfoBlockData(Class paramClass, String name, String description) {
-        super(paramClass, name, description);
+    private Material[] materials;
+    private Cache<Material, Map.Entry<String, String[]>> blockDatas = CacheBuilder.newBuilder()
+            .expireAfterAccess(30, TimeUnit.MINUTES).maximumSize(20).build();
+
+    public ParamInfoBlockData(Class paramClass, String name, String description, Material[] possibleValues) {
+        super(paramClass, name, "BlockData[State=Something]", description);
+
+        materials = Arrays.stream(possibleValues).filter(m -> {
+            switch (m) {
+                case CHEST:
+                case TRAPPED_CHEST:
+                    return false;
+                default:
+                    break;
+            }
+
+            if (!m.isBlock()) {
+                return false;
+            } else if (NmsVersion.v1_13.isSupported()) {
+                return true;
+            }
+
+            switch (m) {
+                case CAKE:
+                case FLOWER_POT:
+                case CAULDRON:
+                case BREWING_STAND:
+                    return false;
+                default:
+                    return true;
+            }
+        }).toArray(Material[]::new);
     }
 
     @Override
@@ -35,4 +76,49 @@ public class ParamInfoBlockData extends ParamInfo {
     public boolean isParam(Class paramClass) {
         return getParamClass().isAssignableFrom(paramClass);
     }
+
+    private Material getMaterial(String name) {
+        return Material.matchMaterial(name, false);
+    }
+
+    public Set<String> getEnums(String tabComplete) {
+        String s = tabComplete.toLowerCase();
+        HashSet<String> returns = new HashSet<>();
+
+        if (s.matches("[a-z_:]+\\[.*")) {
+            s = s.substring(0, s.indexOf("["));
+        } else if (tabComplete.matches("[a-z:_]+")) {
+            for (Material m : materials) {
+                if (m.isLegacy() || !m.isBlock()) {
+                    continue;
+                }
+
+                if (!m.name().toLowerCase().startsWith(s) && !m.getKey().toString().startsWith(s)) {
+                    continue;
+                }
+
+                if (m.name().toLowerCase().startsWith(s)) {
+                    returns.add(m.name());
+                } else {
+                    returns.add(m.getKey().toString());
+                }
+            }
+        } else {
+            return returns;
+        }
+
+        Material mat = getMaterial(s);
+
+        if (mat == null) {
+            return returns;
+        }
+
+        // TODO Maybe auto complete blockstate states
+        // Then again, it means I need to get the block states on a new IBlockData
+        // Then call toBukkit with the block states then turn them into strings
+        // Then handle the edge cases where they are not enums.. Idk, I think I'm going to ignore this.
+        // No one cares about auto completion of this either
+
+        return returns;
+    }
 }

src/main/java/me/libraryaddict/disguise/utilities/reflection/ReflectionManager.java

@@ -1505,6 +1505,25 @@ public class ReflectionManager {
         return 0;
     }
 
+    public static BlockData getBlockDataByCombinedId(int id) {
+        try {
+            Method idMethod = getNmsMethod("Block", "getByCombinedId", int.class);
+            Object iBlockData = idMethod.invoke(null, id);
+            Class iBlockClass = getNmsClass("IBlockData");
+
+            Method getBlock = getNmsMethod(iBlockClass, "getBlock");
+            Object block = getBlock.invoke(iBlockData);
+
+            return (BlockData) getCraftMethod("block.data.type.CraftBlockData", "fromData", iBlockClass)
+                    .invoke(null, block);
+        }
+        catch (Exception ex) {
+            ex.printStackTrace();
+        }
+
+        return null;
+    }
+
     public static ItemStack getItemStackByCombinedId(int id) {
         try {
             Method idMethod = getNmsMethod("Block", "getByCombinedId", int.class);