using BrewMonster;
using BrewMonster.Network;
using BrewMonster.Scripts.World;
using BrewMonster.UI;
using CSNetwork;
using CSNetwork.GPDataType;
using CSNetwork.GPDataType;
using CSNetwork.Protocols.RPCData;
using System.Data;
using Unity.Cinemachine;
using UnityEngine;

public partial class CECGameRun : MonoBehaviour, IMsgHandler
{
    private static CECGameRun instance;

    [SerializeField] private GameObject characterPrefab;
    [SerializeField] private CECMonster monsterPrefab;
    [SerializeField] private CECNPCServer npcServerPrefab;
    [SerializeField] private CinemachineCamera cinemachineCamera;
    [SerializeField] private GameObject _testVfxPrefab;
    //[SerializeField] private Transform ground;
    CECHostPlayer hostPlayer;
    
    public float rotateSpeedX = 300f; // tốc độ xoay ngang
    public float rotateSpeedY = 2f;   // tốc độ xoay dọc
    private CECWorld m_pWorld;

    protected CECUIManager m_pUIManager;        //	UI manager
    public CECWorld GetWorld() { return m_pWorld; }
    public bool StartGame(int idInst, Vector3 vHostPos)
    {
        if (!JumpToInstance(idInst, vHostPos))
        {
            BMLogger.LogError("CECGameRun::StartGame, Failed to create game world.");
            return false;
        }
        return true;
    }

    private bool JumpToInstance(int idInst, Vector3 vHostPos, int iParallelWorldID = 0)
    {
        return true;
    }

    public static CECGameRun Instance
    {
        get
        {
            if (instance == null)
            {
                instance = FindAnyObjectByType<CECGameRun>();
            }
            return instance;
        }
    }
    private void Awake()
    {
        if (instance == null)
        {
            instance = this;
        }
        
        EC_ManMessage.RegisterHandler(this);
    }
    public void Log(string s)
    {
        Debug.LogError(s);
    }
    public CECHostPlayer GetHostPlayer()
    {
        if (hostPlayer == null)
        {
            hostPlayer = FindAnyObjectByType<CECHostPlayer>();
        }
        return hostPlayer;
    }
    public void InitCharacter(cmd_self_info_1 info)
    {
        if (characterPrefab == null)
        {
            Debug.LogError("null prefab");
            return;
        }
        CECPlayer.InitStaticRes();
        hostPlayer = Instantiate(characterPrefab, transform).AddComponent<CECHostPlayer>();
        hostPlayer.InitCharacter(info);
        cinemachineCamera.Follow = hostPlayer.transform;
        cinemachineCamera.ForceCameraPosition(hostPlayer.transform.position, Quaternion.identity);
        //Vector3 pos = new Vector3(info.pos.x, info.pos.y, info.pos.z);
        //Vector3 posCam = pos;
        //posCam.z -= 10f;
        //camera.transform.position = posCam;
        //Vector3 posGround = pos;
        //posGround.y -= 2f;
        //ground.transform.position = posGround;
    }
    public CECMonster GetMonster()
    {
        return Instantiate(monsterPrefab, transform);
    }

    public CECNPCServer GetNPCServer()
    {
        return Instantiate(npcServerPrefab, transform);
    }
    public GameObject GetTestVfx()
    {
        return Instantiate(_testVfxPrefab, transform);
    }
    public void DestroyTestVfx(GameObject go, float delayTime)
    {
        Destroy(go,delayTime);
    }

    public GameObject InitCharacter(info_player_1 info)
    {
        if (characterPrefab == null)
        {
            Debug.LogError("null prefab");
            return null;
        }
        GameObject character = Instantiate(characterPrefab, transform);
        return character.gameObject;
    }
    
    private void OnDestroy()
    {
        instance = null;
    }
    public GameObject InstantiateObject(GameObject prefab)
    {
        return Instantiate(prefab, transform);
    }

    //private void Update()
    //{
    //    if (hostPlayer == null || hostPlayer.transform == null)
    //        return;

    //    bool rightClick = Input.GetMouseButton(1);

    //    if (rightClick)
    //    {
    //        // Bật khả năng xoay khi giữ chuột phải
    //        freeLookCam.m_XAxis.m_MaxSpeed = rotateSpeedX;
    //        freeLookCam.m_YAxis.m_MaxSpeed = rotateSpeedY;

    //        // Ghi giá trị chuột thủ công (nếu muốn override Input System cũ)
    //        float mouseX = Input.GetAxis("Mouse X");
    //        float mouseY = Input.GetAxis("Mouse Y");

    //        // Xoay camera theo hướng chuột
    //        freeLookCam.m_XAxis.Value += mouseX * Time.deltaTime * rotateSpeedX;
    //        freeLookCam.m_YAxis.Value -= mouseY * Time.deltaTime * (rotateSpeedY / 100f);
    //    }
    //    else
    //    {
    //        // Khi thả chuột thì khoá xoay
    //        freeLookCam.m_XAxis.m_MaxSpeed = 0;
    //        freeLookCam.m_YAxis.m_MaxSpeed = 0;
    //    }
    //}

    /// <summary>
    /// Load necessary user configs (UI, shortcut, accelerate keys) from server
    /// 从服务器加载必要的用户配置（UI、快捷键、加速键）
    /// </summary>
    /// <param name="pDataBuf">Config data buffer / 配置数据缓冲区</param>
    /// <param name="iDataSize">Data size / 数据大小</param>
    /// <returns>True if loaded successfully / 加载成功返回true</returns>
    public bool LoadConfigsFromServer(byte[] pDataBuf, int iDataSize)
    {
        const uint USERCFG_VERSION = 3;

        if (pDataBuf == null || iDataSize == 0)
        {
            BMLogger.LogError("CECGameRun::LoadConfigsFromServer, configs data is empty");
            return false;
        }

        // TODO: Uncomment when these objects are available
        // Debug.Assert(m_pWorld != null && m_pWorld.GetHostPlayer() != null && m_pUIManager.GetInGameUIMan() != null);

        int offset = 0;

        // Read version / 读取版本号
        uint dwVer = System.BitConverter.ToUInt32(pDataBuf, offset);
        offset += sizeof(uint);

        if (dwVer > USERCFG_VERSION)
        {
            Debug.LogError($"CECGameRun::LoadConfigsFromServer, version {dwVer} > {USERCFG_VERSION}");
            return false;
        }

        byte[] pUncompBuf = null;
        uint dwRealLen = (uint)(iDataSize - sizeof(uint));
        byte[] pData = pDataBuf;
        int dataOffset = offset;

        if (dwVer >= 3)
        {
            // Uncompress config data / 解压配置数据
            dwRealLen = 4096;
            pUncompBuf = new byte[dwRealLen];

            // Extract compressed data / 提取压缩数据
            byte[] compressedData = new byte[iDataSize - sizeof(uint)];
            System.Array.Copy(pDataBuf, offset, compressedData, 0, compressedData.Length);

            // TODO: Implement AFilePackage::Uncompress equivalent
            int iRes = EC_Utility.UncompressData(compressedData, compressedData.Length, pUncompBuf, ref dwRealLen);

            if (iRes != 0)
            {
                // 解压失败，过程出错 / Decompression failed, process error
                BMLogger.LogError($"CECGameRun::LoadConfigsFromServer, Failed to uncompress configs data ({iRes}:{iDataSize})");
                return false;
            }

            pData = pUncompBuf;
            dataOffset = 0;
        }

        try
        {
            // Create data reader / 创建数据读取器
            CECDataReader dr = new CECDataReader(pData, dataOffset, (int)dwRealLen);

            // Load host configs / 加载主机配置
            CECHostPlayer pHost = GetHostPlayer();
            if (pHost != null)
            {
                int iSize = dr.ReadInt();
                byte[] hostConfigData = dr.ReadData(iSize);
                if (!pHost.LoadConfigData(hostConfigData))
                {
                    BMLogger.LogError("CECGameRun::LoadConfigsFromServer, Failed to load host configs");
                    return false;
                }
            }

            // TODO: Uncomment when UI manager is available
            // Load UI configs / 加载UI配置
            // CECGameUIMan pGameUI = m_pUIManager.GetInGameUIMan();
            // if (pGameUI != null)
            // {
            //     int iSize = dr.ReadInt();
            //     byte[] uiConfigData = dr.ReadData(iSize);
            //     if (!pGameUI.SetUserLayout(uiConfigData, iSize))
            //     {
            //         BMLogger.LogError("CECGameRun::LoadConfigsFromServer, Failed to set user layout");
            //         return false;
            //     }
            // }

            // Load user settings / 加载用户设置
            if (dwVer >= 2)
            {
                // TODO: Uncomment when game configs are available
                // int iSize = dr.ReadInt();
                // byte[] settingsData = dr.ReadData(iSize);
                // if (!g_pGame.GetConfigs().LoadUserConfigData(settingsData, iSize))
                // {
                //     BMLogger.LogError("CECGameRun::LoadConfigsFromServer, Failed to load user config data");
                //     return false;
                // }
            }
        }
        catch (System.Exception e)
        {
            BMLogger.LogError($"CECGameRun::LoadConfigsFromServer, data read error: {e.Message}");
            return false;
        }

        return true;
    }



    //	Get UI manager
    public CECUIManager GetUIManager() 
    {
        if(m_pUIManager == null)
        {
            m_pUIManager = CECUIManager.Instance;
        }
        return m_pUIManager; 
    }
}