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path: root/patches/server/0561-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 24a19034ff30020db9ef817b91400dbf25f87599..c0b9bc288b7ce65a5eafe2a75c120de0855a705b 100644
--- a/src/main/java/org/bukkit/craftbukkit/util/CraftMagicNumbers.java
+++ b/src/main/java/org/bukkit/craftbukkit/util/CraftMagicNumbers.java
@@ -535,6 +535,14 @@ public final class CraftMagicNumbers implements UnsafeValues {
         return io.papermc.paper.inventory.ItemRarity.values()[getItem(itemStack.getType()).getRarity(CraftItemStack.asNMSCopy(itemStack)).ordinal()];
     }
 
+    @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));
+    }
+
     @Override
     public int getProtocolVersion() {
         return net.minecraft.SharedConstants.getCurrentVersion().getProtocolVersion();
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..6b8d360ef86e181a680ad77f28b7dd7368dddfe7
--- /dev/null
+++ b/src/test/java/io/papermc/paper/util/ItemStackRepairCheckTest.java
@@ -0,0 +1,48 @@
+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");
+    }
+
+    @Test
+    public void testInvalidItem() {
+        ItemStack badItemStack = new ItemStack(Material.ACACIA_WALL_SIGN);
+
+        assertFalse(badItemStack.isRepairableBy(new ItemStack(Material.DIAMOND)), "acacia wall sign is repairable by diamond");
+    }
+}