fix: match sausage casing with the vanilla paper path (#36)

* fix: match sausage casing with the vanilla paper path

v.paper is the TLibs check for real paper, so custom paper tools and scooped soup are no longer consumed as casing.

Co-authored-by: Cursor <cursoragent@cursor.com>

* fix: ignore an empty paper stack when checking sausage casing

v.paper does not look at stack size, so a sheet already reduced to zero must not count as casing.

Co-authored-by: Cursor <cursoragent@cursor.com>

---------

Co-authored-by: Cursor <cursoragent@cursor.com>

Author: Drefvelin

src/main/java/net/tfminecraft/cooking/sausagemaker/CasingPaper.java

@@ -1,42 +1,22 @@
 package net.tfminecraft.cooking.sausagemaker;
 
-import org.bukkit.Material;
 import org.bukkit.inventory.ItemStack;
-import org.bukkit.inventory.meta.ItemMeta;
 
-import net.tfminecraft.cooking.item.FoodItem;
-import net.tfminecraft.cooking.util.LegacyModelData;
+import net.tfminecraft.tlibs.TLibs;
 
 /**
- * Sausage casing is plain vanilla paper. Cooking tools and scooped soup use
- * paper as their base item, and those must stay in the player's hand.
+ * Sausage casing is vanilla paper. {@code v.paper} rejects custom items that
+ * only use paper as their base, such as the masher and a scooped bowl of soup.
  */
 final class CasingPaper {
 
+    static final String PATH = "v.paper";
+
     private CasingPaper() {}
 
     static boolean isCasing(ItemStack stack) {
-        if (stack == null || stack.getType() != Material.PAPER || stack.getAmount() <= 0) {
-            return false;
-        }
-        if (hasCustomIdentity(stack)) {
-            return false;
-        }
-        return FoodItem.fromItem(stack) == null;
-    }
-
-    private static boolean hasCustomIdentity(ItemStack stack) {
-        if (!stack.hasItemMeta()) {
-            return false;
-        }
-        ItemMeta meta = stack.getItemMeta();
-        if (meta == null) {
-            return false;
-        }
-        if (meta.hasDisplayName() || meta.hasItemName() || meta.hasItemModel()
-                || meta.hasCustomModelDataComponent() || LegacyModelData.has(meta)) {
-            return true;
-        }
-        return !meta.getPersistentDataContainer().isEmpty();
+        return stack != null
+                && stack.getAmount() > 0
+                && TLibs.getItemAPI().getChecker().checkItemWithPath(stack, PATH);
     }
 }