Add Permission.Perm

Signed-off-by: yoyosource <yoyosource@nidido.de>

BauSystem_Main/src/de/steamwar/bausystem/Permission.java

@@ -20,12 +20,17 @@
 package de.steamwar.bausystem;
 
 import de.steamwar.bausystem.config.BauServer;
+import de.steamwar.command.CommandMetaData;
+import de.steamwar.command.TypeValidator;
 import de.steamwar.sql.BauweltMember;
-import de.steamwar.sql.SteamwarUser;
 import lombok.AllArgsConstructor;
-import org.bukkit.Bukkit;
+import org.bukkit.command.CommandSender;
 import org.bukkit.entity.Player;
 
+import java.lang.annotation.ElementType;
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+import java.lang.annotation.Target;
 import java.util.function.Predicate;
 
 @AllArgsConstructor
@@ -54,4 +59,33 @@ public enum Permission {
     public static boolean hasPermission(Player member, Permission permission) {
         return permission.hasPermission(member);
     }
+
+    @Retention(RetentionPolicy.RUNTIME)
+    @Target(ElementType.PARAMETER)
+    @CommandMetaData.Parameter({Player.class})
+    @CommandMetaData.ImplicitValidator(handler = Perm.Handler.class, order = -10)
+    public @interface Perm {
+        Permission value();
+        String message() default "";
+
+        class Handler implements TypeValidator<Player> {
+
+            private Permission permission;
+            private String message;
+
+            public Handler(Perm perm) {
+                this.permission = perm.value();
+                this.message = perm.message();
+                if (message != null && message.isEmpty()) message = null;
+            }
+
+            @Override
+            public boolean validate(CommandSender commandSender, Player player, MessageSender messageSender) {
+                if (message == null) {
+                    return permission.hasPermission(player);
+                }
+                return !messageSender.send(!permission.hasPermission((Player) commandSender), message);
+            }
+        }
+    }
 }