Fixed some issues

src/main/java/me/monster/ranks/command/permSubcommands/GroupSub.java

@@ -3,6 +3,7 @@ package me.monster.ranks.command.permSubcommands;
 import me.monster.commands.SubCommand;
 import me.monster.ranks.database.DbManager;
 import me.monster.ranks.database.models.Groups;
+import org.bukkit.Bukkit;
 import org.bukkit.command.CommandSender;
 import org.bukkit.entity.Player;
 
@@ -27,22 +28,62 @@ public class GroupSub extends SubCommand {
 
     @Override
     public String getSyntax() {
-        return "/perm group <groupname>";
+        return "/perm group <create/delete/edit/list> [groupname]";
     }
 
     @Override
     public void perform(CommandSender commandSender, String[] strings) {
-
-        commandSender.sendMessage("Test");
-
-    }
-
-    @Override
-    public List<String> getSubcommandArguments(Player player, String[] strings) {
         try {
-            return List.of(DbManager.getAllGroups().stream().map(Groups::getGroupName).toArray(String[]::new));
+            manageSystem(List.of(strings), commandSender);
         } catch (SQLException e) {
             throw new RuntimeException(e);
         }
+
+    }
+
+
+    public void manageSystem(List<String> args, CommandSender sender) throws SQLException {
+
+    }
+
+
+//
+//  Commmand /perm group edit <group> permission set/unset <permission>
+//
+
+    @Override
+    public List<String> getSubcommandArguments(Player player, String[] strings) {
+        if (player.hasPermission("ranks.manage.group")){
+            if (strings.length == 2) {
+                return List.of("create", "delete", "edit", "list", "info");
+            }
+            if (strings.length == 3) {
+                if (strings[1].equalsIgnoreCase("create") || strings[1].equalsIgnoreCase("list")) {
+                    return null;
+                } else if (strings[1].equalsIgnoreCase("delete") || strings[1].equalsIgnoreCase("edit") || strings[1].equalsIgnoreCase("info")) {
+                    try {
+                        return List.of(DbManager.getAllGroups().stream().map(Groups::getGroupName).toArray(String[]::new));
+                    } catch (SQLException e) {
+                        throw new RuntimeException(e);
+                    }
+                }
+            }
+            if (strings.length >= 4) {
+                if (strings.length == 4) {
+                    if (strings[1].equalsIgnoreCase("create") || strings[1].equalsIgnoreCase("list") || strings[1].equalsIgnoreCase("delete")) {
+                        return null;
+                    }
+                    if (strings[1].equalsIgnoreCase("edit")) {
+                        return List.of("permission", "prefix", "suffix", "name", "parent", "weight");
+                    }
+                }
+                if (strings.length == 5 && strings[1].equalsIgnoreCase("edit") && strings[3].equalsIgnoreCase("permission")) {
+                    return List.of("set", "unset");
+                } else if (strings.length == 6 && strings[1].equalsIgnoreCase("edit") && strings[3].equalsIgnoreCase("permission")) {
+                    return List.of(Bukkit.getPluginManager().getPermissions().stream().map(org.bukkit.permissions.Permission::getName).toArray(String[]::new));
+                }
+            }
+        }
+        return null;
     }
 }