add /ca enchant

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

@@ -57,6 +57,8 @@ open class CustomAnvil : JavaPlugin() {
         // Permission string required to edit the plugin's config
         const val editConfigPermission = "ca.config.edit"
 
+        // Permission string required to edit the plugin's config
+        const val giveEnchantmentPermission = "ca.command.enchantment"
 
         // Command Name to reload the config
         const val commandReloadName = "anvilconfigreload"

src/main/kotlin/xyz/alexcrea/cuanvil/command/CASubCommand.kt

@@ -4,6 +4,7 @@ import org.bukkit.ChatColor
 import org.bukkit.command.Command
 import org.bukkit.command.CommandExecutor
 import org.bukkit.command.CommandSender
+import xyz.alexcrea.cuanvil.enchant.CAEnchantmentRegistry
 
 abstract class CASubCommand: CommandExecutor {
 
@@ -43,4 +44,14 @@ abstract class CASubCommand: CommandExecutor {
         return "no description"
     }
 
+    protected fun allEnchantmentsByName(): Collection<String> {
+        val names = mutableSetOf<String>()
+        for (enchantment in CAEnchantmentRegistry.getInstance().values()) {
+            names.add(enchantment.name)
+            names.add(enchantment.key.toString())
+        }
+
+        return names
+    }
+
 }

src/main/kotlin/xyz/alexcrea/cuanvil/command/CustomAnvilCommand.kt

@@ -7,7 +7,6 @@ import org.bukkit.command.CommandExecutor
 import org.bukkit.command.CommandSender
 import org.bukkit.command.TabCompleter
 import xyz.alexcrea.cuanvil.util.MetricsUtil
-import java.util.ArrayList
 
 class CustomAnvilCommand(plugin: CustomAnvil) : CommandExecutor, TabCompleter {
 
@@ -18,13 +17,14 @@ class CustomAnvilCommand(plugin: CustomAnvil) : CommandExecutor, TabCompleter {
 
     private val editConfigCommand = EditConfigExecutor()
     private val helpCommand = HelpExecutor()
-    private val commands = ImmutableMap.of(
+    private val commands: ImmutableMap<String, CASubCommand> = ImmutableMap.of(
         "gui", editConfigCommand,
         "config", editConfigCommand,
         "reload", ReloadExecutor(),
         "diagnostic", DiagnosticExecutor(),
         "debug", DebugToggleExecutor(),
         "help", helpCommand,
+        "enchant", EnchantExecutor(),
     )
 
     init {
@@ -95,9 +95,11 @@ class CustomAnvilCommand(plugin: CustomAnvil) : CommandExecutor, TabCompleter {
         }
 
         //assumed all provided tab completed string are lowercase
+        val prefix = args[args.size - 1]
         return result.stream()
-            .filter { it.startsWith(args[args.size - 1]) }
+            .filter { it.startsWith(prefix) }
             .sorted()
             .toList()
     }
+
 }

src/main/kotlin/xyz/alexcrea/cuanvil/command/EditConfigExecutor.kt

@@ -7,7 +7,6 @@ import org.bukkit.entity.HumanEntity
 import xyz.alexcrea.cuanvil.api.EnchantmentApi
 import xyz.alexcrea.cuanvil.dependency.util.PlatformUtil
 import xyz.alexcrea.cuanvil.enchant.CAEnchantment
-import xyz.alexcrea.cuanvil.enchant.CAEnchantmentRegistry
 import xyz.alexcrea.cuanvil.gui.config.MainConfigGui
 import xyz.alexcrea.cuanvil.gui.config.global.EnchantConfigGui
 import xyz.alexcrea.cuanvil.gui.config.global.ItemConfigGui
@@ -103,16 +102,6 @@ class EditConfigExecutor : CASubCommand() {
     //  Tab completer
     // ---------------
 
-    private fun allEnchantmentsByName(): Collection<String> {
-        val names = mutableSetOf<String>()
-        for (enchantment in CAEnchantmentRegistry.getInstance().values()) {
-            names.add(enchantment.name)
-            names.add(enchantment.key.toString())
-        }
-
-        return names
-    }
-
     override fun tabCompleter(sender: CommandSender, args: Array<out String>, list: MutableList<String>) {
         list.addAll(
             when (args.size) {
@@ -127,7 +116,6 @@ class EditConfigExecutor : CASubCommand() {
                 else -> listOf()
             }
         )
-
     }
 
 }

src/main/kotlin/xyz/alexcrea/cuanvil/command/EnchantExecutor.kt

@@ -0,0 +1,113 @@
+package xyz.alexcrea.cuanvil.command
+
+import io.delilaheve.CustomAnvil
+import io.delilaheve.util.ConfigOptions
+import org.bukkit.command.Command
+import org.bukkit.command.CommandSender
+import org.bukkit.entity.HumanEntity
+import xyz.alexcrea.cuanvil.api.EnchantmentApi
+import xyz.alexcrea.cuanvil.util.MaterialUtil.isAir
+
+class EnchantExecutor : CASubCommand() {
+
+
+    override fun allowed(sender: CommandSender): Boolean {
+        return sender.hasPermission(CustomAnvil.giveEnchantmentPermission)
+    }
+
+    override fun description(): String {
+        return "Allows to set enchantment to holden item"
+    }
+
+    override fun executeCommand(
+        sender: CommandSender,
+        cmd: Command,
+        cmdstr: String,
+        args: Array<out String>
+    ): Boolean {
+        if (sender !is HumanEntity) return true
+
+        if (!allowed(sender)) {
+            sender.sendMessage("No permission to execute this command")
+            return true
+        }
+
+        when (args.size) {
+            0 -> {
+                sender.sendMessage("Missing enchantment parameter")
+                return true
+            }
+
+            1 -> {
+                sender.sendMessage("Missing level parameter")
+                return true
+            }
+        }
+
+        val enchants = EnchantmentApi.getListByName(args[0].lowercase())
+        if (enchants.isEmpty()) {
+            sender.sendMessage("Enchantment not found: ${args[0]}")
+            return true
+        }
+
+        val enchant = enchants.iterator().next()
+
+        val level = args[1].toIntOrNull()?.coerceIn(0, ConfigOptions.ENCHANT_LIMIT)
+        if (level == null) {
+            sender.sendMessage("Invalid number: ${args[1]}")
+            return true
+        }
+
+        val inHand = sender.inventory.itemInMainHand
+        if (inHand.isAir) {
+            sender.sendMessage("Cannot enchant this item")
+            return true
+        }
+
+        if (level == 0) {
+            enchant.removeFrom(inHand)
+            sender.sendMessage("${enchant.prettyName} removed")
+        } else {
+            enchant.addEnchantmentUnsafe(inHand, level)
+            sender.sendMessage("${enchant.prettyName} set to level $level")
+        }
+
+        return true
+    }
+
+    override fun tabCompleter(sender: CommandSender, args: Array<out String>, list: MutableList<String>) {
+        if (sender !is HumanEntity) return
+
+        list.addAll(
+            when (args.size) {
+                1 -> allEnchantmentsByName()
+                2 -> findEnchantmentLevels(sender, args[0])
+
+                else -> listOf()
+            }
+        )
+    }
+
+    private fun findEnchantmentLevels(
+        sender: HumanEntity,
+        name: String
+    ): Collection<String> {
+        val enchants = EnchantmentApi.getListByName(name.lowercase())
+        if (enchants.isEmpty()) return listOf()
+
+        val enchant = enchants.iterator().next()
+        val limit = ConfigOptions.enchantLimit(enchant)
+        val result = mutableListOf<String>()
+
+        for (i in 1 until limit + 1) {
+            result.add(i.toString())
+        }
+
+        val inHand = sender.inventory.itemInMainHand
+        if (enchant.isEnchantmentPresent(inHand))
+            result.add("0")
+
+        return result
+    }
+
+}

src/main/kotlin/xyz/alexcrea/cuanvil/command/ReloadExecutor.kt

@@ -3,7 +3,6 @@ package xyz.alexcrea.cuanvil.command
 import io.delilaheve.CustomAnvil
 import org.bukkit.Bukkit
 import org.bukkit.command.Command
-import org.bukkit.command.CommandExecutor
 import org.bukkit.command.CommandSender
 import xyz.alexcrea.cuanvil.api.event.CAConfigReadyEvent
 import xyz.alexcrea.cuanvil.config.ConfigHolder