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path: root/patches/server/0536-ItemStack-repair-check-API.patch
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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Jake Potrebic <jake.m.potrebic@gmail.com>
Date: Sat, 15 May 2021 22:11:11 -0700
Subject: [PATCH] ItemStack repair check API


diff --git a/src/main/java/org/bukkit/craftbukkit/util/CraftMagicNumbers.java b/src/main/java/org/bukkit/craftbukkit/util/CraftMagicNumbers.java
index fd36c8c62503e4ce035d51b0cc4e8dd55e66cc5d..dec695198708838fd77285ba818e82861da49a98 100644
--- a/src/main/java/org/bukkit/craftbukkit/util/CraftMagicNumbers.java
+++ b/src/main/java/org/bukkit/craftbukkit/util/CraftMagicNumbers.java
@@ -526,6 +526,14 @@ public final class CraftMagicNumbers implements UnsafeValues {
     public int getProtocolVersion() {
         return net.minecraft.SharedConstants.getCurrentVersion().getProtocolVersion();
     }
+
+    @Override
+    public boolean isValidRepairItemStack(org.bukkit.inventory.ItemStack itemToBeRepaired, org.bukkit.inventory.ItemStack repairMaterial) {
+        if (!itemToBeRepaired.getType().isItem() || !repairMaterial.getType().isItem()) {
+            return false;
+        }
+        return CraftMagicNumbers.getItem(itemToBeRepaired.getType()).isValidRepairItem(CraftItemStack.asNMSCopy(itemToBeRepaired), CraftItemStack.asNMSCopy(repairMaterial));
+    }
     // Paper end
 
     @Override
diff --git a/src/test/java/io/papermc/paper/util/ItemStackRepairCheckTest.java b/src/test/java/io/papermc/paper/util/ItemStackRepairCheckTest.java
new file mode 100644
index 0000000000000000000000000000000000000000..9f8abe2376f16aeffe4e9f90a2da04b7e3a55429
--- /dev/null
+++ b/src/test/java/io/papermc/paper/util/ItemStackRepairCheckTest.java
@@ -0,0 +1,41 @@
+package io.papermc.paper.util;
+
+import org.bukkit.Material;
+import org.bukkit.inventory.ItemStack;
+import org.bukkit.support.AbstractTestingBase;
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertThrows;
+import static org.junit.jupiter.api.Assertions.assertTrue;
+
+public class ItemStackRepairCheckTest extends AbstractTestingBase {
+
+    @Test
+    public void testIsRepariableBy() {
+        ItemStack diamondPick = new ItemStack(Material.DIAMOND_PICKAXE);
+
+        assertTrue(diamondPick.isRepairableBy(new ItemStack(Material.DIAMOND)), "diamond pick isn't repairable by a diamond");
+    }
+
+    @Test
+    public void testCanRepair() {
+        ItemStack diamond = new ItemStack(Material.DIAMOND);
+
+        assertTrue(diamond.canRepair(new ItemStack(Material.DIAMOND_AXE)), "diamond can't repair a diamond axe");
+    }
+
+    @Test
+    public void testIsNotRepairableBy() {
+        ItemStack notDiamondPick = new ItemStack(Material.ACACIA_SAPLING);
+
+        assertFalse(notDiamondPick.isRepairableBy(new ItemStack(Material.DIAMOND)), "acacia sapling is repairable by a diamond");
+    }
+
+    @Test
+    public void testCanNotRepair() {
+        ItemStack diamond = new ItemStack(Material.DIAMOND);
+
+        assertFalse(diamond.canRepair(new ItemStack(Material.OAK_BUTTON)), "diamond can repair oak button");
+    }
+}