add plugin permissions for enchantments and a reload command

Author: zefir-git

src/main/java/pro/cloudnode/smp/enchantbookplus/ConfigEnchantmentEntry.java

@@ -48,7 +48,7 @@ public final class ConfigEnchantmentEntry {
     /**
      * Maximum level of the enchantment.
      */
-    public @NotNull Optional<Integer> getMaxLevel() {
+    public @NotNull Optional<@NotNull Integer> getMaxLevel() {
         if (Optional.ofNullable(maxLevel).isEmpty()) return Optional.empty();
         if (maxLevelRelative) return Optional.of(getEnchantment().getMaxLevel() + maxLevel);
         return Optional.of(maxLevel);
@@ -104,7 +104,7 @@ public ConfigEnchantmentEntry(final @NotNull String name, final @Nullable Intege
      *
      * @param configValue Config object
      */
-    public static ConfigEnchantmentEntry configValue(final @NotNull HashMap<@NotNull String, @NotNull Object> configValue) {
+    public static @NotNull ConfigEnchantmentEntry configValue(final @NotNull HashMap<@NotNull String, @NotNull Object> configValue) {
         final @NotNull String name = (String) Objects.requireNonNull(configValue.get("name"));
         final @Nullable Integer maxLevel;
         final boolean maxLevelRelative;

src/main/java/pro/cloudnode/smp/enchantbookplus/EnchantBookPlus.java

@@ -7,6 +7,7 @@
 
 import java.util.ArrayList;
 import java.util.List;
+import java.util.Objects;
 import java.util.Optional;
 import java.util.logging.Level;
 
@@ -63,6 +64,8 @@ public void reload() {
 
     @Override
     public void onEnable() {
+        Objects.requireNonNull(getCommand("enchantbookplus")).setExecutor(new MainCommand());
+
         registerEvents();
         saveDefaultConfig();
         reload();

src/main/java/pro/cloudnode/smp/enchantbookplus/MainCommand.java

@@ -0,0 +1,53 @@
+package pro.cloudnode.smp.enchantbookplus;
+
+import net.kyori.adventure.text.minimessage.MiniMessage;
+import net.kyori.adventure.text.minimessage.tag.resolver.Placeholder;
+import org.bukkit.command.Command;
+import org.bukkit.command.CommandExecutor;
+import org.bukkit.command.CommandSender;
+import org.bukkit.command.TabCompleter;
+import org.jetbrains.annotations.NotNull;
+import org.jetbrains.annotations.Nullable;
+
+import java.util.List;
+import java.util.Optional;
+
+public final class MainCommand implements CommandExecutor, TabCompleter {
+    @Override
+    public boolean onCommand(@NotNull CommandSender sender, @NotNull Command command, @NotNull String label, @NotNull String @NotNull [] args) {
+        if (args.length == 1 && args[0].equalsIgnoreCase("reload")) reload(sender, command);
+        return overview(sender);
+    }
+
+    @Override
+    public @Nullable List<String> onTabComplete(@NotNull CommandSender sender, @NotNull Command command, @NotNull String label, @NotNull String @NotNull [] args) {
+        return null;
+    }
+
+    /**
+     * Plugin overview
+     */
+    public static boolean overview(final @NotNull CommandSender sender) {
+        final @NotNull EnchantBookPlus plugin = EnchantBookPlus.getInstance();
+        sender.sendMessage(MiniMessage.miniMessage()
+                .deserialize("<green><name></green> <white>v<version> by</white> <gray><author></gray>", Placeholder.unparsed("name", plugin
+                        .getPluginMeta().getName()), Placeholder.unparsed("version", plugin.getPluginMeta()
+                        .getVersion()), Placeholder.unparsed("author", String.join(", ", plugin.getPluginMeta()
+                        .getAuthors()))));
+
+        return true;
+    }
+
+    /**
+     * Reload plugin configuration
+     */
+    public static boolean reload(final @NotNull CommandSender sender, final @NotNull Command command) {
+        if (!sender.hasPermission(Permissions.RELOAD)) {
+            sender.sendMessage(Optional.ofNullable(command.permissionMessage()).orElse(sender.getServer().permissionMessage()));
+            return true;
+        }
+        EnchantBookPlus.getInstance().reload();
+        sender.sendMessage(MiniMessage.miniMessage().deserialize("<green>(!) Plugin configuration reloaded."));
+        return true;
+    }
+}

src/main/java/pro/cloudnode/smp/enchantbookplus/Permissions.java

@@ -0,0 +1,12 @@
+package pro.cloudnode.smp.enchantbookplus;
+
+import org.bukkit.enchantments.Enchantment;
+import org.jetbrains.annotations.NotNull;
+
+public final class Permissions {
+    public static @NotNull String enchant(final @NotNull Enchantment enchantment) {
+        return "enchantbookplus.enchant." + enchantment.getKey().getKey();
+    }
+
+    public static @NotNull String RELOAD = "enchantbookplus.reload";
+}

src/main/java/pro/cloudnode/smp/enchantbookplus/event/PrepareAnvil.java

@@ -11,6 +11,7 @@
 import org.jetbrains.annotations.NotNull;
 import pro.cloudnode.smp.enchantbookplus.ConfigEnchantmentEntry;
 import pro.cloudnode.smp.enchantbookplus.EnchantBookPlus;
+import pro.cloudnode.smp.enchantbookplus.Permissions;
 
 import java.util.HashMap;
 import java.util.Map;
@@ -36,6 +37,7 @@ public void onPrepareAnvil(final @NotNull PrepareAnvilEvent event) {
         int cost = 0;
         for (final @NotNull Map.Entry<@NotNull Enchantment, @NotNull Integer> entry : upgradeEnchants.entrySet()) {
             final @NotNull Enchantment enchantment = entry.getKey();
+            if (!event.getView().getPlayer().hasPermission(Permissions.enchant(enchantment))) continue;
             if (enchantment.getMaxLevel() == 1) continue;
             final @NotNull Optional<@NotNull ConfigEnchantmentEntry> configEnchantment = EnchantBookPlus.getInstance().getConfigEnchantment(enchantment);
             if (configEnchantment.isEmpty()) continue;

src/main/resources/plugin.yml

@@ -3,3 +3,7 @@ version: '${project.version}'
 main: pro.cloudnode.smp.enchantbookplus.EnchantBookPlus
 description: "Combine enchantment books to achieve levels above vanilla"
 api-version: '1.20'
+commands:
+  enchantbookplus:
+    description: "EnchantBookPlus main command"
+    usage: "/<command>"