method to normalize the type of the key

Author: HSGamer

all/src/main/java/io/github/projectunified/uniitem/all/AllItemProvider.java

@@ -106,4 +106,15 @@ public List<String> availableTypes() {
     public @NotNull Item wrap(@NotNull ItemKey key) {
         return getProviders().stream().map(provider -> provider.wrap(key)).filter(Item::isValid).findFirst().orElse(Item.INVALID);
     }
+
+    @Override
+    public @NotNull String normalize(@NotNull String type) {
+        for (ItemProvider provider : getProviders()) {
+            String normalized = provider.normalize(type);
+            if (!type.equals(normalized)) {
+                return normalized;
+            }
+        }
+        return type;
+    }
 }

api/src/main/java/io/github/projectunified/uniitem/api/ItemProvider.java

@@ -6,6 +6,7 @@
 import org.jetbrains.annotations.Nullable;
 
 import java.util.List;
+import java.util.Locale;
 
 public interface ItemProvider {
     List<String> availableTypes();
@@ -37,4 +38,13 @@ default boolean isValidKey(@NotNull ItemKey key) {
     default boolean isSimilar(@NotNull ItemStack item, @NotNull ItemKey key) {
         return wrap(key).isSimilar(item);
     }
+
+    default @NotNull String normalize(@NotNull String type) {
+        List<String> types = availableTypes();
+        return types.contains(type.toLowerCase(Locale.ROOT)) ? types.getFirst() : type;
+    }
+
+    default @NotNull ItemKey normalize(@NotNull ItemKey key) {
+        return new ItemKey(normalize(key.type()), key.id());
+    }
 }