using BrewMonster;
using BrewMonster.Common;
using CSNetwork;
using CSNetwork.C2SCommand;
using CSNetwork.Protocols;
using CSNetwork.Protocols.RPCData;
using CSNetwork.Security;
using ModelRenderer.Scripts.Common;
using System;
using System.Collections;
using System.Collections.Generic;
using System.IO;
using System.Text;
using System.Threading;
using System.Threading.Tasks;
using BrewMonster.Scripts.Task;
using BrewMonster.UI;
using UnityEngine;
using UnityEngine.SceneManagement;
using BrewMonster.Scripts;

namespace BrewMonster.Network
{
    // How to connect to the server: 
    // 1. Set the connection info
    // 2. Login
    public class UnityGameSession : MonoSingleton<UnityGameSession>
    {
        private const string WorldSceneName = "a61";
        private const string LoginSceneName = "LoginScene";
        private GameSession _gameSession;

        private bool _isInitialized = false;
        private string _ip = "";
        private int _port = 0;
        private string _username = "";
        private string _password = "";
        private bool _isIntentionalDisconnect = false;

        CECStubbornFactionInfoSender m_stubbornFactionInfoSender;
        public GameSession GameSession { get => _gameSession; }
        public CECC2SCmdCache GetC2SCmdCache() { return _gameSession.CmdCache; }
#if UNITY_EDITOR
        public bool isDebg;
        private bool lastDebug;


        public void OnValidate()
        {
            if (_gameSession != null && isDebg != lastDebug)
            {
                _gameSession.IsDebug = isDebg;
                lastDebug =  isDebg;
            }
        }
#endif
        
        protected override void Awake()
        {
            Encoding.RegisterProvider(CodePagesEncodingProvider.Instance);
            GameSession.Context = SynchronizationContext.Current;

            base.Awake();
        }
        private void Start()
        {
            CECNPC.InitStaticRes();
        }
        /// <summary>
        /// Send a 
        /// </summary>
        /// <param name="protocol"></param>
        /// <param name="complete"></param>
        public static void SendProtocol(Protocol protocol, Action complete = null)
        {
            if (!Instance._isInitialized)
            {
                return;
            }
            Instance._gameSession.SendProtocol(protocol, complete);
        }

        /// <summary>Set the connection info. This MUST be called call before login</summary>
        public static void SetConnectionInfo(string ip, int port)
        {
            BMLogger.Log($"Set connection info {ip} {port}");
            Instance._ip = ip;
            Instance._port = port;
        }

        /// <summary>
        /// Origin-like: In-game can only return to Select Role (LOGOUT(1)).
        /// This will load LoginScene and auto-login (using saved creds) to show the Select Role UI.
        /// </summary>
        public static void ReturnToSelectRole()
        {
            if (Instance == null) return;
            // Origin-like: in-game only returns to Select Role (auto-login using saved creds).
            // Keep world scene loaded (a61) but cleaned.
            _ = Instance.LogoutAndReturnAsync(outType: 1, entryTarget: LogoutFlowState.LoginEntryTarget.SelectRole, clearSavedCreds: false);
        }

        /// <summary>
        /// Origin-like: Account logout from Select Role (LOGOUT(0)).
        /// This will clear saved creds and load LoginScene showing username/password UI.
        /// </summary>
        public static void LogoutAccount()
        {
            if (Instance == null) return;
            _ = Instance.LogoutAndReturnAsync(outType: 0, entryTarget: LogoutFlowState.LoginEntryTarget.LoginUI, clearSavedCreds: true);
        }
        public static void c2s_CmdCastSkill(int idSkill, byte byPVPMask, int iNumTarget, int[] aTargets)
        {
            Instance._gameSession.CmdCache.SendCmdCastSkill(idSkill, byPVPMask, iNumTarget, aTargets);
        }

        public static void c2s_CmdCastInstantSkill(int idSkill, byte byPVPMask, int iNumTarget, int[] aTargets)
        {
            Instance._gameSession.CmdCache.SendCmdCastInstantSkill(idSkill, byPVPMask, iNumTarget, aTargets);
        }

        public static void c2s_CmdCastPosSkill(int idSkill, Vector3 vDest, byte byPVPMask, int iNumTarget, int aTargets)
        {
            Instance._gameSession.c2s_CmdCastPosSkill(idSkill, vDest, byPVPMask, iNumTarget, aTargets);
        }
        public static async Task Login(string username, string password, Action<bool> onLoginComplete = null)
        {
            Instance._username = username;
            Instance._password = password;

            if (Instance._ip == "" || Instance._port == 0)
            {
                BMLogger.LogError($"IP or port is not set {Instance._ip} {Instance._port}");
                onLoginComplete?.Invoke(false);
                return;
            }

            BMLogger.Log( $"Connecting to {Instance._ip} {Instance._port}...");
            await Instance.ConnectAsync(Instance._ip, Instance._port);

            if (!Instance._gameSession.IsConnected)
            {
                BMLogger.LogError($"Failed to connect to {Instance._ip} {Instance._port}");
                onLoginComplete?.Invoke(false);
                return;
            }

            Instance._gameSession.LoginAsync(username, password, onLoginComplete);
        }
        public void c2s_SendCmdStopMove(in Vector3 vDest, float fSpeed, int iMoveMode,
                           byte byDir, ushort wStamp, int iTime)
        {
            BMLogger.LogWarning("HoangDev : c2s_SendCmdStopMove");
            Instance._gameSession.c2s_SendCmdStopMove(vDest, fSpeed, iMoveMode, byDir, wStamp, iTime);
        }
        public void c2s_CmdPlayerMove(in Vector3 vCurPos, in Vector3 vDest,
                             int iTime, float fSpeed, int iMoveMode, ushort wStamp)
        {
            Instance._gameSession.c2s_CmdPlayerMove(vCurPos, vDest, iTime, fSpeed, iMoveMode, wStamp);
        }
        protected override void Initialize()
        {
            BaseSecurity.Initizalize();
            ProtocolFactory.RegisterAllProtocols();
            _gameSession = new GameSession();
            #if UNITY_EDITOR
            var path = Application.dataPath.Substring(0, Application.dataPath.LastIndexOf("Assets"));
            #else
            var path = Application.persistentDataPath;
            #endif
            _gameSession.SetLogPath(Path.Combine(path, "Logs", "GameSession.log"));
            
            // Subscribe to unexpected disconnects
            _gameSession.Disconnected += OnUnexpectedDisconnect;
            
            _isInitialized = true;

            DontDestroyOnLoad(gameObject);
        }

        private async Task LogoutAndReturnAsync(int outType, LogoutFlowState.LoginEntryTarget entryTarget, bool clearSavedCreds)
        {
            // Tell LoginScene what to show next.
            LogoutFlowState.NextLoginEntry = entryTarget;

            if (clearSavedCreds)
            {
                PlayerPrefs.DeleteKey("username");
                PlayerPrefs.DeleteKey("password");
                PlayerPrefs.Save();
            }

            try
            {
                if (_gameSession != null && _gameSession.IsConnected)
                {
                    // Mark this as an intentional disconnect to prevent showing error message
                    _isIntentionalDisconnect = true;
                    
                    // Send LOGOUT(outType) like the original client.
                    _gameSession.SendPlayerLogout(outType);

                    // Wait briefly for server-driven disconnect.
                    await WaitForDisconnectAsync(timeoutMs: 4000);
                }
            }
            catch (Exception ex)
            {
                BMLogger.LogError($"LogoutAndReturnAsync exception: {ex.Message}");
            }
            finally
            {
                // Fallback: if server didn't close, close locally.
                if (_gameSession != null && _gameSession.IsConnected)
                {
                    _gameSession.Disconnect();
                }
            }

            // Return to LoginScene.
            // IMPORTANT: for outType=1 we must keep the world scene (a61) loaded; only "clean" runtime objects.
            await Task.Yield();
            // Requirement: even on account logout, keep a61 loaded (do not delete the world scene),
            // just clean runtime objects and show LoginScene UI.
            CleanRuntimeObjectsKeepWorld();
            await EnsureSceneLoadedAdditiveAsync(WorldSceneName);
            await EnsureLoginSceneAdditiveAndActivateAsync(keepSceneName: WorldSceneName);

            // When LoginScene is already loaded additively, Start() won't re-run.
            // Force the login UI to refresh to the correct entry state immediately.
            ApplyLoginEntryToUI(entryTarget);

            // now we have to logout from Tech3C SDK
            Tech3CSDKWrapper.Instance.Logout();
        }

        private static void ApplyLoginEntryToUI(LogoutFlowState.LoginEntryTarget entryTarget)
        {
            try
            {
                // Find even if inactive (Resources.FindObjectsOfTypeAll returns inactive objects too).
                var all = Resources.FindObjectsOfTypeAll<LoginScreenUI>();
                for (int i = 0; i < all.Length; i++)
                {
                    var ui = all[i];
                    if (ui == null) continue;
                    if (!ui.gameObject.scene.IsValid() || ui.gameObject.scene.name != LoginSceneName) continue;
                    // Avoid hard dependency on method existence (merges may edit LoginScreenUI).
                    ui.SendMessage("ApplyLoginEntry", entryTarget, SendMessageOptions.DontRequireReceiver);
                    return;
                }
            }
            catch (Exception ex)
            {
                BMLogger.LogError($"ApplyLoginEntryToUI error: {ex.Message}");
            }
        }

        private static void CleanRuntimeObjectsKeepWorld()
        {
            // Spawned runtime objects (player/monsters/vfx) are parented under ObjectSpawner.
            // Destroying them "cleans" the world without unloading the scene (a61 remains loaded).
            try
            {
                var spawner = BrewMonster.ObjectSpawner.Instance;
                if (spawner == null) return;

                var root = spawner.transform;
                for (int i = root.childCount - 1; i >= 0; i--)
                {
                    var child = root.GetChild(i);
                    if (child != null)
                        UnityEngine.Object.Destroy(child.gameObject);
                }
            }
            catch (Exception ex)
            {
                BMLogger.LogError($"CleanRuntimeObjectsKeepWorld error: {ex.Message}");
            }
        }

        private static async Task EnsureSceneLoadedAdditiveAsync(string sceneName)
        {
            if (string.IsNullOrEmpty(sceneName)) return;
            var s = SceneManager.GetSceneByName(sceneName);
            if (s.IsValid() && s.isLoaded) return;

            var op = SceneManager.LoadSceneAsync(sceneName, LoadSceneMode.Additive);
            while (op != null && !op.isDone)
                await Task.Yield();
        }

        private static async Task EnsureLoginSceneAdditiveAndActivateAsync(string keepSceneName)
        {
            // Load LoginScene additively if needed (do not unload keepSceneName, e.g., a61).
            var loginScene = SceneManager.GetSceneByName(LoginSceneName);
            if (!loginScene.IsValid() || !loginScene.isLoaded)
            {
                var op = SceneManager.LoadSceneAsync(LoginSceneName, LoadSceneMode.Additive);
                while (op != null && !op.isDone)
                    await Task.Yield();
                loginScene = SceneManager.GetSceneByName(LoginSceneName);
            }

            if (loginScene.IsValid() && loginScene.isLoaded)
            {
                SceneManager.SetActiveScene(loginScene);
            }

            // Optionally unload other non-world scenes (keep a61 + LoginScene).
            // This prevents extra scenes like NPCRender staying around.
            for (int i = 0; i < SceneManager.sceneCount; i++)
            {
                var s = SceneManager.GetSceneAt(i);
                if (!s.IsValid() || !s.isLoaded) continue;
                if (s.name == LoginSceneName) continue;
                if (!string.IsNullOrEmpty(keepSceneName) && s.name == keepSceneName) continue;

                // Only unload if it's not the active scene (we already switched active to LoginScene above).
                if (SceneManager.GetActiveScene() == s) continue;
                _ = SceneManager.UnloadSceneAsync(s);
            }
        }

        private Task WaitForDisconnectAsync(int timeoutMs)
        {
            if (_gameSession == null || !_gameSession.IsConnected)
                return Task.CompletedTask;

            var tcs = new TaskCompletionSource<bool>(TaskCreationOptions.RunContinuationsAsynchronously);
            void OnDisc() => tcs.TrySetResult(true);
            _gameSession.Disconnected += OnDisc;

            return Task.Run(async () =>
            {
                try
                {
                    await Task.WhenAny(tcs.Task, Task.Delay(timeoutMs));
                }
                finally
                {
                    _gameSession.Disconnected -= OnDisc;
                }
            });
        }
        public RoleInfo GetRoleInfo()
        {
            return _gameSession.GetRoleInfo();
        }

        public string GetWorldInstanceName()
        {
            switch (_gameSession.GetRoleInfo().worldtag)
            {
                case 161:
                    return "a61";
                default:
                    return "a61";
            }
        }
        /// <summary>Make sure username and password is set before calling this method</summary>
        private async Task ConnectAsync(string ip, int port)
        {
            if (!Instance._isInitialized)
            {
                BMLogger.LogError("GameSession is not initialized");
                return;
            }
            await Instance._gameSession.ConnectAsync(ip, port);
        }

        /// <summary>Get the list of created characters</summary>
        public static void GetRoleListAsync(Action<List<RoleInfo>> callback = null)
        {
            Instance._gameSession.GetRoleListAsync(callback);
        }

        public static void SelectRoleAsync(RoleInfo roleInfo, Action<RoleInfo> callback = null)
        {
            Instance._gameSession.SelectRoleAsync(roleInfo, callback);
        }

        public static void CreateRoleAsync(RoleInfo roleInfo, Octets referId, Action<RoleInfo> callback = null)
        {
            Instance._gameSession.CreateRoleAsync(roleInfo, referId, callback);
        }

        public static void EnterWorldAsync(RoleInfo roleInfo, Action callback = null)
        {
            BMLogger.Log("EnterWorldAsync !!!!! nay ");
            Instance._gameSession.EnterWorldAsync(roleInfo, callback);
        }
        public static void SendChatData(byte cChannel, in string szMsg, int iPack, int iSlot)
        {

            Instance._gameSession.SendChatData(cChannel, szMsg, iPack, iSlot);
        }
        public static void RequestInventoryAsync(byte byPackage, Action callback = null)
        {
            Instance._gameSession.c2s_SendCmdGetIvtrDetailData(byPackage, callback);
        }
        public static void RequesrQueryPlayerCash()
        {
            Instance._gameSession.c2s_SendCmdQueryCashInfo();
        }
        public static void RequestDropEquipItem(byte index)
        {
            Instance._gameSession.RequestDropEquipItem(index);
        }
        public static void RequestEquipItemAsync(byte iIvtrIdx, byte iEquipIdx, Action callback = null)
        {
            Instance._gameSession.c2s_SendCmdEquipItem(iIvtrIdx, iEquipIdx, callback);
        }
        public static void RequestPickupItem(int idItem, int tid)
        {
            Instance._gameSession.CmdCache.SendCmdPickUp(idItem, tid);
        }
        public static void RequestDropIvrtItem(byte index, int amount)
        {
            Instance._gameSession.RequestDropIvtrItem(index, amount);
        }
        public static void LoadConfigData()
        {
            Instance._gameSession.LoadConfigData();
        }
        public static void RequestCheckSecurityPassWd(string password)
        {
            Instance._gameSession.c2s_SendCmdOpenFashionTrash(password);
        } 
        public static void c2s_SendCmdContinueAction()
        {
            Instance._gameSession.c2s_SendCmdContinueAction();
        }
        public static void c2s_CmdReviveVillage()
        {
            Instance._gameSession.CmdCache.SendCmdReviveVillage();
        }
        public static void c2s_CmdReviveItem()
        {
            Instance._gameSession.CmdCache.SendCmdReviveItem();
        }
        public static void RequestReviveByPlayer()
        {
            Instance._gameSession.RequestReviveByPlayer();
        }
        public static void c2s_SendCmdUseItemWithTarget(byte byPackage, byte bySlot, int tid, byte byPVPMask)
        {
            Instance._gameSession.c2s_SendCmdUseItemWithTarget(byPackage, bySlot, tid, byPVPMask);
        }

        public void RequestMallShopping(uint count, int good_id, int good_index, int good_pos)
        {
            var goods = new CMD_MallShopping.goods[]
            {
                new CMD_MallShopping.goods
                {
                    goods_id = good_id,
                    goods_index = good_index,
                    goods_pos = good_pos
                }
            };
            Instance._gameSession.c2s_SendCmdMallShopping(count, goods);
        }
        public static void RequestAllInventoriesAsync(Action callback = null, params byte[] packages)
        {
            if (packages == null || packages.Length == 0)
            {
                packages = new byte[] { 0, 1, 2 };
            }

            int remaining = packages.Length;
            Action onOneDone = () =>
            {
                remaining--;
                if (remaining <= 0)
                {
                    callback?.Invoke();
                }
            };

            foreach (var p in packages)
            {
                RequestInventoryAsync(p, onOneDone);
            }
        }
        public static void c2s_SendCmdNPCSevLearnSkill(int idSkill)
        {
            BMLogger.LogError("c2s_SendCmdNPCSevLearnSkill");
            Instance._gameSession.c2s_SendCmdNPCSevLearnSkill(idSkill);
        }
        public static void c2s_CmdNPCSevHello(int nid)
        {
            Instance._gameSession.CmdCache.SendCmdNPCSevHello(nid);
        }

        public static void c2s_CmdNormalAttack(byte byPVPMask)
        {
            Instance._gameSession.c2s_CmdNormalAttack(byPVPMask);
        }

        public static void c2s_CmdCancelAction()
        {
            Instance._gameSession.CmdCache.SendCmdCancelAction();
        }

        public static void c2s_CmdUnselect()
        {
            Instance._gameSession.c2s_CmdUnselect();
        }

        public static void c2s_CmdSelectTarget(int idTarget)
        {
            Instance._gameSession.CmdCache.SendCmdSelectTarget(idTarget);
        }
        public static void c2s_CmdNPCSevWaypoint()
        {
            Instance._gameSession.c2s_SendCmdNPCSevWaypoint();
        }

        public static void c2s_CmdNPCSevMakeItem(int idSkill, int idItem, uint dwCount)
        {
            Instance._gameSession.c2s_SendCmdNPCSevMakeItem(idSkill, idItem, dwCount);
        }

        public void GetFactionInfo(int iNumFaction, int[] aFactinoIDs)
        {
            m_stubbornFactionInfoSender.Add(iNumFaction, aFactinoIDs);
        }
        public static void c2s_CmdSendEnterPKPrecinct()
        {
            Instance._gameSession.c2s_CmdSendEnterPKPrecinctint();
        }

        public static void c2s_CmdNPCSevHeal()
        {

        }
        public static void c2s_SendCmdNotifyForceAttack(int iForceAttack, byte refuseBless)
        {
            Instance._gameSession.c2s_SendCmdNotifyForceAttack(iForceAttack, refuseBless);
        }
        public static void c2s_CmdNPCSevAcceptTask(int idTask,int idStorage,int idRefreshItem)
        {
            Instance._gameSession.c2s_CmdNPCSevAcceptTask(idTask, idStorage, idRefreshItem);
        }

        public static void c2s_CmdNPCSevReturnTask(int idTask, int iChoice)
        {
            Instance._gameSession.c2s_SendCmdNPCSevReturnTask(idTask, iChoice);
        }

        public static void c2s_CmdNPCSevTaskMatter(int idTask)
        {
            Instance._gameSession.c2s_SendCmdNPCSevTaskMatter(idTask);
        }

        public static void c2s_CmdNPCSevBuy(int itemNum, npc_trade_item[] items)
        {
            if (items == null || itemNum <= 0)
                return;
            Instance._gameSession.c2s_SendCmdNPCSevBuy(itemNum, items);
        }

        public static void c2s_CmdNPCSevSell(int itemNum, npc_sell_item[] items)
        {
            if (items == null || itemNum <= 0)
                return;
            Instance._gameSession.c2s_SendCmdNPCSevSell(itemNum, items);
        }
        public static void c2s_CmdStandUp()
        {
            Instance._gameSession.c2s_SendCmdStandUp();
        }
        #region Task
        public static void c2s_CmdGetAllData(bool byPack, bool byEquip, bool byTask)
        {
            //Debug.Log("[Dat]- SendCmdGetAllData");
            Instance._gameSession.c2s_SendCmdGetAllData(byPack, byEquip, byTask);
        }

        public static void c2s_CmdEmoteAction(uint wPose)
        {
            Instance._gameSession.c2s_SendCmdEmoteAction(wPose);
        }
        public static void c2s_CmdTaskNotify( byte[] pBuf, uint sz)
        {
            if (Instance != null && Instance._gameSession != null)
            {
                Instance._gameSession.c2s_SendCmdTaskNotify( pBuf, sz);
            }
        }
        
        public static void c2s_CmdAutoTeamSetGoal(int type, int goal_id, int op)
        {
            Instance._gameSession.c2s_SendCmdAutoTeamSetGoal(type, goal_id, op);//{ ::c2s_SendCmdAutoTeamSetGoal(type, goal_id, op); }
        }

        public static void c2s_CmdTeamInvite(int idPlayer)
        {
            Instance._gameSession.c2s_SendCmdTeamInvite(idPlayer);
        }
        public static void c2s_CmdTeamKickMember(int idMember)
        {
            Instance._gameSession.c2s_SendCmdTeamKickMember(idMember);
        }
        public static void c2s_CmdTeamLeaveParty()
        {
            Instance._gameSession.c2s_SendCmdTeamLeaveParty();
        }
        public static void c2s_CmdTeamDismissParty()
        {
            Instance._gameSession.c2s_SendCmdTeamDismissParty();
        }
        public static void c2s_CmdTeamSetPickupFlag(short pickupFlag)
        {
            Instance._gameSession.c2s_SendCmdTeamSetPickupFlag(pickupFlag);
        }
        public static void c2s_CmdTeamChangeLeader(int idNewLeader)
        {
            Instance._gameSession.c2s_SendCmdTeamChangeLeader(idNewLeader);
        }
        public static void c2s_CmdTeamMemberPos(int count, int[] memberIds)
        {
            Instance._gameSession.c2s_SendCmdTeamMemberPos(count, memberIds);
        }

        public static void c2s_CmdGatherMaterial(int idMatter, int iToolPack, int idToolIndex, int idTool, int idTask)
        {
            Instance._gameSession.c2s_SendCmdGatherMaterial(idMatter, iToolPack, idToolIndex, idTool, idTask);
        }
        #endregion

        public static void GetRoleBaseInfo(int iNumRole, List<int> aRoleIDs)
        {
            Instance._gameSession.GetRoleBaseInfo(iNumRole, aRoleIDs);
        }

        public static void GetRoleCustomizeData(int iNumRole, List<int> aRoleIDs)
        {
            Instance._gameSession.GetRoleCustomizeData(iNumRole, aRoleIDs);
        }

        public void LoadScene(string sceneName, LoadSceneMode mode, Action<float> actProgress, Action<bool> actDone)
        {
            // SceneLoadService.Load(sceneName, mode, actDone);
            StartCoroutine(LoadSceneCoroutine(sceneName, mode, actProgress, actDone));
        }

        private IEnumerator LoadSceneCoroutine(string sceneName, LoadSceneMode mode, Action<float> actProgress, Action<bool> actDone)
        {
            AsyncOperation asyncLoad = SceneManager.LoadSceneAsync(sceneName, mode);
            asyncLoad.allowSceneActivation = false;
            while (!asyncLoad.isDone)
            {
                if (asyncLoad.progress >= 0.9f)
                {
                    asyncLoad.allowSceneActivation = true;
                }
                yield return null;
            }
            actDone?.Invoke(true);
        }

        void OnDestroy()
        {
            // Mark as intentional to prevent showing disconnect message
            _isIntentionalDisconnect = true;
            
            _gameSession.Disconnect();
            _gameSession.Dispose();
            CECNPC.ReleaseStaticRes();
        }
        
        /// <summary>
        /// Handles unexpected server disconnections. Shows a message box and returns to login.
        /// </summary>
        private void OnUnexpectedDisconnect()
        {
            // If this was an intentional disconnect (logout), skip UI
            if (_isIntentionalDisconnect)
            {
                _isIntentionalDisconnect = false;
                return;
            }

            // Show disconnect message box
            CECUIManager.Instance?.ShowMessageBox(
                title: "Disconnected",
                message: "Connection to the server has been lost.",
                messageBoxType: MessageBoxType.YesButton,
                onClickedYes: () =>
                {
                    // Return to login screen
                    LogoutAccount();
                }
            );
        }
          
        public static void c2s_CmdGoto(float x, float y, float z)
        {
            Instance._gameSession.c2s_CmdGoto(x, y, z);
        }

        public static void c2s_SendCmdUseItem(byte byPackage, byte bySlot, int tid, byte byCount)
        {
            Instance._gameSession.CmdCache.SendCmdUseItem(byPackage, bySlot, tid, byCount);
        }

        //	Send C2S::GET_EXT_PROP commadn data
        public static void c2s_SendCmdGetExtProps()
        {
            Instance._gameSession.CmdCache.SendCmdExtProps();
        }

        /// <summary>Send C2S::SET_STATUS_POINT (attribute point allocation).</summary>
        public static void c2s_CmdSetStatusPts(int vitality, int energy, int strength, int agility)
        {
            Instance._gameSession.c2s_SendCmdSetStatusPts(vitality, energy, strength, agility);
        }

        public static void c2s_SendCmdGivePresent(int roleid, int mail_id, int goods_id, int goods_index, int goods_slot)
        {
            Instance._gameSession.c2s_SendCmdGivePresent(roleid, mail_id, goods_id, goods_index, goods_slot);
        }

        public void Update()
        {
            _gameSession?.CmdCache?.Tick(Time.deltaTime);
            
#if UNITY_EDITOR
            // Debug: Press D to disconnect from server (Editor only)
            if (Input.GetKeyDown(KeyCode.D))
            {
                if (_gameSession != null && _gameSession.IsConnected)
                {
                    Debug.Log("[DEBUG] D key pressed - Force disconnecting from server...");
                    _gameSession.Disconnect();
                }
            }
#endif
        }

        public static void c2s_CmdPetCtrl(int idTarget, int cmd, object pParamBuf, int iParamLen) 
        {
            Instance._gameSession.SendCmdPetCtrl(idTarget, cmd, pParamBuf, iParamLen); 
        }

        //	Pet commands ...
        public static void c2s_CmdPetSummon(int iPetIdx)
        {
            Instance._gameSession.c2s_SendCmdPetSummon(iPetIdx);
        }

        public static void c2s_CmdNPCSevEmbed(ushort wStoneIdx, ushort wEquipIdx, int tidStone, int tidEquip)
        {
            Instance._gameSession.c2s_SendCmdNPCSevEmbed(wStoneIdx, wEquipIdx, tidStone, tidEquip);
        }
        public static void c2s_CmdGetItemInfo(byte byPackage, byte bySlot)
        {
            Instance._gameSession.c2s_SendCmdGetItemInfo(byPackage, bySlot);
        }
        public static void c2s_CmdNPCSevClearEmbeddedChip(int iEquipIdx, int tidEquip)
        {
            Instance._gameSession.c2s_CmdNPCSevClearEmbeddedChip(iEquipIdx, tidEquip);
        }
    }

    /// <summary>
    /// Small cross-scene state to tell LoginScene what to show after a logout flow.
    /// This mirrors the original client: in-game can only return to Select Role; Account Logout happens from Select Role.
    /// </summary>
    public static class LogoutFlowState
    {
        public enum LoginEntryTarget
        {
            LoginUI = 0,
            SelectRole = 1,
        }

        private static LoginEntryTarget _nextEntry = LoginEntryTarget.LoginUI;

        public static LoginEntryTarget NextLoginEntry
        {
            get => _nextEntry;
            set => _nextEntry = value;
        }

        /// <summary>Consume and reset to default (LoginUI).</summary>
        public static LoginEntryTarget ConsumeNextLoginEntry()
        {
            var v = _nextEntry;
            _nextEntry = LoginEntryTarget.LoginUI;
            return v;
        }
    }
}