fix durability repair and item naming

build.gradle.kts

@@ -4,7 +4,7 @@ plugins {
 }
 
 group = "io.delilaheve"
-version = "1.0.1"
+version = "1.0.2"
 
 repositories {
     mavenCentral()

src/main/kotlin/io/delilaheve/AnvilEventListener.kt

@@ -1,22 +1,23 @@
 package io.delilaheve
 
 import io.delilaheve.util.ConfigOptions
-import io.delilaheve.util.EnchantmentUtil.calculateValue
 import io.delilaheve.util.EnchantmentUtil.combineWith
 import io.delilaheve.util.EnchantmentUtil.hasConflicts
 import io.delilaheve.util.ItemUtil.canMergeWith
 import io.delilaheve.util.ItemUtil.findEnchantments
 import io.delilaheve.util.ItemUtil.isBook
+import io.delilaheve.util.ItemUtil.repairCost
+import io.delilaheve.util.ItemUtil.repairFrom
 import io.delilaheve.util.ItemUtil.setEnchantmentsUnsafe
-import org.bukkit.Material
 import org.bukkit.entity.Player
 import org.bukkit.event.Event
 import org.bukkit.event.EventHandler
+import org.bukkit.event.EventPriority.HIGHEST
 import org.bukkit.event.Listener
 import org.bukkit.event.inventory.InventoryClickEvent
 import org.bukkit.event.inventory.PrepareAnvilEvent
 import org.bukkit.inventory.AnvilInventory
-import org.bukkit.inventory.InventoryView
+import org.bukkit.inventory.InventoryView.Property.REPAIR_COST
 import org.bukkit.permissions.Permission
 import kotlin.math.min
 
@@ -26,8 +27,6 @@ import kotlin.math.min
 class AnvilEventListener : Listener {
 
     companion object {
-        // Vanilla repair cost limit
-        private const val VANILLA_REPAIR_LIMIT = 40
         // Anvil's output slot
         private const val ANVIL_OUTPUT_SLOT = 2
     }
@@ -39,34 +38,42 @@ class AnvilEventListener : Listener {
     /**
      * Event handler logic for when an anvil contains items to be combined
      */
-    @EventHandler
+    @EventHandler(priority = HIGHEST)
     fun anvilCombineCheck(event: PrepareAnvilEvent) {
         val inventory = event.inventory
         val first = inventory.getItem(0) ?: return
         val second = inventory.getItem(1) ?: return
         if (first.canMergeWith(second)) {
-            val firstEnchants = first.findEnchantments().toMutableMap()
-            val secondEnchants = second.findEnchantments().toMutableMap()
+            val newEnchants = first.findEnchantments()
+                .combineWith(second.findEnchantments())
+            val resultItem = first.clone()
+            resultItem.itemMeta?.let {
+                it.setDisplayName(inventory.renameText)
+                resultItem.itemMeta = it
+            }
+            resultItem.setEnchantmentsUnsafe(newEnchants)
+            if (!first.isBook() && !second.isBook()) {
+                // we only need to be concerned with repair when neither item is a book
+                resultItem.repairFrom(first, second)
+            }
+            var repairCost = first.repairCost + second.repairCost
+            if (ConfigOptions.limitRepairCost) {
+                repairCost = min(repairCost, ConfigOptions.limitRepairValue)
+            }
+            event.result = resultItem
+            /* Because Minecraft likes to have the final say in the repair cost displayed
+             * we need to wait for the event to end before overriding it, this ensures that
+             * we have the final say in the process. */
+            UnsafeEnchants.instance
+                .server
+                .scheduler
+                .runTask(UnsafeEnchants.instance, Runnable {
                     if (ConfigOptions.removeRepairLimit) {
                         inventory.maximumRepairCost = Int.MAX_VALUE
                     }
-            val newEnchants = firstEnchants.combineWith(secondEnchants)
-            val enchantsString = newEnchants.map { "${it.key.key} ${it.value}" }.joinToString(", ")
-            UnsafeEnchants.log("New enchants for this item: $enchantsString")
-            val resultItem = first.clone()
-            resultItem.setEnchantmentsUnsafe(newEnchants)
-            val firstValue = firstEnchants.calculateValue(first.isBook())
-            val secondValue = secondEnchants.calculateValue(second.isBook())
-            var repairCost = firstValue + secondValue
-            if (first.isBook() && second.isBook()) {
-                repairCost = firstEnchants.values.sum() + secondEnchants.values.sum()
-            }
-            if (ConfigOptions.limitRepairCost) {
-                repairCost = min(repairCost, VANILLA_REPAIR_LIMIT)
-            }
                     inventory.repairCost = repairCost
-            event.view.setProperty(InventoryView.Property.REPAIR_COST, repairCost)
-            event.result = resultItem
+                    event.view.setProperty(REPAIR_COST, repairCost)
+                })
         }
     }
 
@@ -80,8 +87,6 @@ class AnvilEventListener : Listener {
         val output = inventory.getItem(ANVIL_OUTPUT_SLOT) ?: return
         if (output.findEnchantments().hasConflicts() && !player.hasPermission(requirePermission)) { return }
         if (event.rawSlot != ANVIL_OUTPUT_SLOT) { return }
-        if (output.type == Material.AIR) { return }
-        if (player.level < inventory.repairCost) { return }
         event.result = Event.Result.ALLOW
     }
 

src/main/kotlin/io/delilaheve/util/ConfigOptions.kt

@@ -15,6 +15,8 @@ object ConfigOptions {
     private const val ALLOW_UNSAFE_PATH = "allow_unsafe"
     // Path for limiting repair cost
     private const val LIMIT_REPAIR_COST = "limit_repair_cost"
+    // Path for repair value limit
+    private const val LIMIT_REPAIR_VALUE = "limit_repair_value"
     // Path for removing repair cost limits
     private const val REMOVE_REPAIR_LIMIT = "remove_repair_limit"
     // Root path for enchantment limits
@@ -33,6 +35,10 @@ object ConfigOptions {
     private const val DEFAULT_ALLOW_UNSAFE = true
     // Default value for limiting repair cost
     private const val DEFAULT_LIMIT_REPAIR = true
+    // Default value for repair cost limit
+    private const val DEFAULT_LIMIT_REPAIR_VALUE = 39
+    // Valid range for repair cost limit
+    private val REPAIR_LIMIT_RANGE = 1..39
     // Default for removing repair cost limits
     private const val DEFAULT_REMOVE_LIMIT = false
     // Valid range for an enchantment limit
@@ -72,6 +78,18 @@ object ConfigOptions {
                 .getBoolean(LIMIT_REPAIR_COST, DEFAULT_LIMIT_REPAIR)
         }
 
+    /**
+     * Value to limit repair costs to
+     */
+    val limitRepairValue: Int
+        get() {
+            return UnsafeEnchants.instance
+                .config
+                .getInt(LIMIT_REPAIR_VALUE, DEFAULT_LIMIT_REPAIR_VALUE)
+                .takeIf { it in REPAIR_LIMIT_RANGE }
+                ?: DEFAULT_LIMIT_REPAIR_VALUE
+        }
+
     /**
      * Whether to remove repair cost limit
      */

src/main/kotlin/io/delilaheve/util/EnchantmentUtil.kt

@@ -19,8 +19,8 @@ object EnchantmentUtil {
     /**
      * Combine 2 sets of enchantments according to our configuration
      */
-    fun MutableMap<Enchantment, Int>.combineWith(
-        other: MutableMap<Enchantment, Int>
+    fun Map<Enchantment, Int>.combineWith(
+        other: Map<Enchantment, Int>
     ) = mutableMapOf<Enchantment, Int>().apply {
         putAll(this@combineWith)
         other.forEach { (enchantment, level) ->

src/main/kotlin/io/delilaheve/util/ItemUtil.kt

@@ -1,17 +1,36 @@
 package io.delilaheve.util
 
 import io.delilaheve.UnsafeEnchants
+import io.delilaheve.util.EnchantmentUtil.calculateValue
+import io.delilaheve.util.ItemUtil.isBook
 import org.bukkit.Material.BOOK
 import org.bukkit.Material.ENCHANTED_BOOK
 import org.bukkit.enchantments.Enchantment
 import org.bukkit.inventory.ItemStack
+import org.bukkit.inventory.meta.Damageable
 import org.bukkit.inventory.meta.EnchantmentStorageMeta
+import org.bukkit.inventory.meta.ItemMeta
+import org.bukkit.inventory.meta.Repairable
+import kotlin.math.min
 
 /**
  * Item manipulation utilities
  */
 object ItemUtil {
 
+    /**
+     * Determine the value of an item for repair
+     *
+     * ToDo - use native repair cost
+     */
+    val ItemStack.repairCost: Int
+        get() {
+            val nativeCost = (itemMeta as? Repairable)?.repairCost
+            val pluginCost = findEnchantments().calculateValue(isBook())
+            UnsafeEnchants.log("Native Cost: $nativeCost; Plugin Cost: $pluginCost")
+            return nativeCost.takeIf { it != 0 } ?: pluginCost
+        }
+
     /**
      * Check if this [ItemStack] is a [BOOK] or [ENCHANTED_BOOK]
      */
@@ -72,6 +91,25 @@ object ItemUtil {
         }
     }
 
+    /**
+     * Set this [ItemStack]s durability from a combination of the
+     * [first] and [second] item's durability values
+     */
+    fun ItemStack.repairFrom(
+        first: ItemStack,
+        second: ItemStack
+    ) {
+        (itemMeta as? Damageable)?.let {
+            val maxDurability = type.maxDurability.toInt()
+            val firstDurability = (first.itemMeta as? Damageable)?.damage ?: 0
+            val secondDurability = (second.itemMeta as? Damageable)?.damage ?: 0
+            var newDurability = firstDurability + secondDurability
+            newDurability = min(maxDurability, newDurability)
+            it.damage = newDurability
+            itemMeta = it as ItemMeta
+        }
+    }
+
     /**
      * Check that this [ItemStack] can merge with the [other]
      *

src/main/resources/config.yml

@@ -11,9 +11,16 @@ default_limit: 10
 # i.e. Protection and Blast Protection can be on the same piece of armour
 allow_unsafe: true
 
-# Whether all anvil actions should be capped to the vanilla repair limit (40 levels)
+# Whether all anvil actions should be capped
+#
+# If true, all anvil repairs will max out at the value of limit_repair_value
 limit_repair_cost: true
 
+# Value to limit repair costs to when limit_repair_cost is true
+#
+# Valid range of 1 - 39 (vanilla will consider 40+ as "too expensive")
+limit_repair_value: 39
+
 # Whether the anvil's repair limit should be removed entirely
 #
 # The anvil will still visually display "too expensive" however the action will be completable

src/main/resources/plugin.yml

@@ -1,6 +1,6 @@
 main: io.delilaheve.UnsafeEnchants
 name: UnsafeEnchants
-version: 1.0.1
+version: 1.0.2
 description: Allow all enchants to be combined
 api-version: 1.18
 load: POSTWORLD