FREE RenameName : 0.0.1 0.0.1

using System.Collections.Generic;
using System.Linq;
using System.Text;
using Oxide.Core;

namespace Oxide.Plugins
{
    [Info("RenameName", "Sparkless", "0.0.1")]
    public class RenameName : RustPlugin
    {


        #region Var


        public string Permission = "renamename.use";

        #endregion
        
        
        #region Lang

        public static StringBuilder sb = new StringBuilder();
        public string GetLang(string LangKey, string userID = null, params object[] args)
        {
            sb.Clear();
            if (args != null)
            {
                sb.AppendFormat(lang.GetMessage(LangKey, this, userID), args);
                return sb.ToString();
            }
            return lang.GetMessage(LangKey, this, userID);
        }
        private void LoadMessages()
        {
            lang.RegisterMessages(new Dictionary<string, string>
                {
                    ["SetName"] = "You have a nickname installed - {0}",
                    ["SetOldName"] = "You have returned your old nickname - {0}",
                    ["NotFoundOldName"] = "The old nickname was not found! You may not have changed your nickname yet",
                }
                , this);
        }

        #endregion

        void OnServerInitialized()
        {
            try
            {
                OldName = Interface.GetMod().DataFileSystem.ReadObject<Dictionary<ulong, string>>(Name);
                if (OldName == null)
                    OldName = new Dictionary<ulong, string>();
            }
            catch
            {
                OldName = new Dictionary<ulong, string>();
            }
            if (!permission.PermissionExists(Permission, this))
                permission.RegisterPermission(Permission, this);
            LoadMessages();
        }
        
        
        void Unload()
        {
            Interface.Oxide.DataFileSystem.WriteObject(Name, OldName);
        }

        void OnServerSave()
        {
            Interface.Oxide.DataFileSystem.WriteObject(Name, OldName);
        }
        
        public Dictionary<ulong, string> OldName = new Dictionary<ulong, string>();



        [ChatCommand("rename")]
        void RenameFoNick(BasePlayer player, string command, string[] args)
        {
            if (!permission.UserHasPermission(player.UserIDString, Permission)) return;
            var message = string.Join(" ", args.Skip(0).ToArray());
            if (string.IsNullOrEmpty(message)) return;
            if (!OldName.ContainsKey(player.userID))
            {
                OldName.Add(player.userID, player.displayName);
            }
            Rename(player, message);
            player.ChatMessage(GetLang("SetName", player.UserIDString, message));
        }


        [ChatCommand("renameold")]
        void RenameOldNick(BasePlayer player)
        {
            if (!permission.UserHasPermission(player.UserIDString, Permission)) return;
            if (!OldName.ContainsKey(player.userID))
            {
                player.ChatMessage(GetLang("NotFoundOldName", player.UserIDString));
                return;
            }
            Rename(player, OldName[player.userID]);
            player.ChatMessage(GetLang("SetOldName", player.UserIDString, OldName[player.userID]));
            OldName.Remove(player.userID);
        }
        
        
        
        public void Rename(BasePlayer player, string name)
        {
            name = (string.IsNullOrEmpty(name.Trim()) ? player.displayName : name);
            player.net.connection.username = name;
            player.displayName = name;
            player._name = name;
            player.SendNetworkUpdateImmediate(false);
            player.IPlayer.Name = name;
            permission.UpdateNickname(player.UserIDString, name);
        }
    }
}