Update from Git Manager GUI

src/main/java/viper/ButtonTabCompleter.java

@@ -0,0 +1,47 @@
+package viper;
+
+import org.bukkit.command.Command;
+import org.bukkit.command.CommandSender;
+import org.bukkit.command.TabCompleter;
+import org.bukkit.entity.Player;
+import org.bukkit.util.StringUtil;
+
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.Collections;
+import java.util.List;
+
+public class ButtonTabCompleter implements TabCompleter {
+
+    private final List<String> commands = Arrays.asList("info", "reload", "note", "trust", "untrust", "public", "private");
+    private final List<String> instruments = Arrays.asList(
+            "PIANO", "BASS_DRUM", "SNARE_DRUM", "STICKS", "BASS_GUITAR", 
+            "FLUTE", "BELL", "CHIME", "GUITAR", "XYLOPHONE", 
+            "IRON_XYLOPHONE", "COW_BELL", "DIDGERIDOO", "BIT", "BANJO", "PLING"
+    );
+
+    @Override
+    public List<String> onTabComplete(CommandSender sender, Command command, String alias, String[] args) {
+        if (!(sender instanceof Player)) return Collections.emptyList();
+
+        List<String> completions = new ArrayList<>();
+
+        // Erste Ebene: /bc <Tab>
+        if (args.length == 1) {
+            StringUtil.copyPartialMatches(args[0], commands, completions);
+        } 
+        
+        // Zweite Ebene: /bc note <Tab>
+        else if (args.length == 2 && args[0].equalsIgnoreCase("note")) {
+            StringUtil.copyPartialMatches(args[1], instruments, completions);
+        }
+        
+        // Zweite Ebene: /bc trust/untrust <Tab> (Spielernamen vorschlagen)
+        else if (args.length == 2 && (args[0].equalsIgnoreCase("trust") || args[0].equalsIgnoreCase("untrust"))) {
+            return null; // 'null' lässt Bukkit automatisch alle Online-Spieler vorschlagen
+        }
+
+        Collections.sort(completions);
+        return completions;
+    }
+}