using BestHTTP.SecureProtocol.Org.BouncyCastle.Crypto.Engines;
using Common;
using DarkTonic.MasterAudio;
using DragonLi.Core;
using LitJson;
using NaughtyAttributes;
using Pathfinding;
using System;
using System.Collections;
using System.Collections.Generic;
using System.Linq;
using UnityEngine;
using UnityEngine.PlayerLoop;
using UnityEngine.UIElements;
using XPlugin.Data.JsonLiteDB;
using static XPlugin.Data.JsonLiteDB.JsonLiteDB;


/// <summary>
/// 游戏状态
/// </summary>
public enum GameState
{
    None = 0,
    Playing = 1,
    /// <summary>
    /// 胜利
    /// </summary>
    Victory = 2,
    /// <summary>
    /// 失败
    /// </summary>
    Failur = 3,
    Settle
}


public class GameManager : MonoBehaviour
{
    public static GameManager Ins { get; private set; }

    public TaskManager taskManager;

    public GameState gameState;

    public float vistEnd = 60 * 10;
    public float curGameTime = 0;
    
    //预制体
    public GameObject playerPre;
    public GameObject enemyPre;
    public GameObject gameStartDoor;
    public GameObject mirrorPre;
    public GameObject witchPre;
    
    public RightHand playerRightHand;
    public Enemy enemy;

    public bool isStartGame = false;

    //添加
    [Header("AI角色")]
    public GameObject aiCharacterPre;//AI角色预制体
    private GameObject aiCharacter;//AI角色实例

    // 新增：指引系统
    [Header("指引系统")]
    public GameObject GuideArrowPre; // 指引箭头预制体
    private GameObject guideArrowInstance; // 指引箭头实例
    private GuideArrowPath guideArrowComponent; // 指引箭头组件
    private bool isGuideArrowActive = false;
    private Vector3 lastPlayerPosition; // 记录玩家上一次的位置
    private float updatePathThreshold = 0.5f; // 更新路径的阈值（玩家移动超过这个距离才更新路径）
    private float updatePathCooldown = 0.3f; // 更新路径的冷却时间
    private float lastPathUpdateTime = 0f;
    private Vector3[] lastPathPoints; // 上一次的路径点
    private bool isPathSmoothed = false;
    private List<Vector3> smoothedPath = new List<Vector3>();

    void Awake()
    {
        Ins = this;
    }

    private void Start()
    {
        isStartGame = false;
        // 新增：初始化指引系统
    }

    public void GameStart()
    {
        //CreateAICharacter();
        //CleanupGuideArrow();
        //CreateEnemy(GameLocal.Ins.enemyPos.position,GameLocal.Ins.enemyPos.eulerAngles);
    }

    //修改处：添加创建AI角色的方法
    private void CreateAICharacter()
    {
        //检查是否已经存在AI角色
        if (aiCharacter != null)
        {
            Debug.Log("AI角色已经存在，不再创建新的");
            return;
        }

        if (aiCharacterPre != null)
        {
            Debug.Log("创建AI角色");

            //在玩家前方创建AI角色
            Vector3 spawnPosition = playerPre.transform.position + playerPre.transform.forward * 3f;
            aiCharacter = Instantiate(aiCharacterPre, GameLocal.Ins.startDoorPos.position, Quaternion.identity);

            //获取AIController并启动开场白
            AIController aiController = aiCharacter.GetComponent<AIController>();
            if (aiController != null)
            {
                //注册AI介绍完成回调
                aiController.OnIntroductionComplete += StartGameAfterIntroduction;

                //添加延迟，确保所有组件已经完成初始化
                StartCoroutine(DelayedStartIntroduction(aiController));
            }
            else
            {
                Debug.LogError("AI预制体中的AIController组件丢失");
            }
        }
        else
        {
            Debug.LogError("AI预制体没有在GameManager分配!");
        }
    }

    public void StartGameAfterIntroduction()
    {
        isStartGame = true;

        Debug.Log("AI介绍完成，开始游戏正常流程");

        HUDPanel.Show();
        taskManager.bg.SetActive(true);
        CreateEnemy(GameLocal.Ins.enemyPos.position, new Vector3(0, 180, 0));
    }

    private IEnumerator DelayedStartIntroduction(AIController aiController)
    {
        yield return new WaitForSeconds(0.1f); // 短暂延迟
        aiController.StartIntroduction();
    }

    public void LoginGame()
    {
        CreatePlayer();
        //PlaySound2DRPC("1.25");
        PlayBGM(0);
        CreateGameStartDoor(GameLocal.Ins.startDoorPos.position);
        InitializeGuideArrow();
    }

    public void PlayBGM(int id)
    {
        foreach (var item in GameLocal.Ins.BGM)
        {
            item.SetActive(false);
        }
        GameLocal.Ins.BGM[id].SetActive(true);
    }

    
    public void GameOver(GameState state)
    {
        
    }

    /// <summary>
    /// 更新配置表
    /// </summary>
    public void UpdateConf()
    {
        // string text = Resources.Load<TextAsset>("Data").text;
        // if (text != null)
        // {
        //     ParseGameJson(text);
        // }
    }

    public void ParseGameJson(string text)
    {
        // DB = new JsonLiteDB();
        // DB.Load(text);
        //
        // TableReader infoReader = DB["EnemysInfo"].GetReader();
        // while (infoReader.Read())
        // {
        //     EnemyInfo info = new EnemyInfo(infoReader);
        //     
        // }
        
        Debug.Log("游戏数值更新 -> complete");
    }

    public void StopBgm()
    {
        
    }
    
    public void PlaySound2DRPC(string sound)
    {
        MasterAudio.PlaySound(sound);
    }

    public void PlaySound3DRPC(string sound,Transform soundTran,bool isStop=false)
    {
        if(isStop)
            MasterAudio.StopAllSoundsOfTransform(soundTran);
        MasterAudio.PlaySound3DAtTransform(sound, soundTran);
    }

    public void CreateGameStartDoor(Vector3 pos)
    {
       var door= Instantiate(gameStartDoor, pos, Quaternion.identity);
        // 延迟开始指引，确保玩家和门都已初始化
        CoroutineTaskManager.Instance.WaitSecondTodo(() =>
        {
            StartGuide();
        }, 0.5f);
        if (GameLocal.Ins.place == Place.Jiangsu_Xvzhou_Suning_Guangchang
            ||GameLocal.Ins.place == Place.Hunan_Changde_Lixian_WandaGuangchang
            ||GameLocal.Ins.place == Place.Hunan_Zhuzhou_Wanda_Shennongcheng_Chaowanshe
            
            )
        {
            door.transform.eulerAngles = new Vector3(0, 90, 0);
        }
        if ( GameLocal.Ins.place == Place.Hunan_Zhuzhou_Wanda_Shennongcheng_Chaowanshe
            || GameLocal.Ins.place == Place.Hebei_Hengshui_Taocheng_WandaGuangchang
            || GameLocal.Ins.place == Place.Ningxia_Yinchuan_Jinfeng_XinhualianGuangchang
            )
        {
            door.transform.eulerAngles = new Vector3(0, -90, 0);
        }
        else
        {
            door.transform.eulerAngles = new Vector3(0, 180, 0);
        }
        
        MonoSingleton<CoroutineTaskManager>.Instance.WaitSecondTodo(() =>
       {
           if (!isStartGame)
           {
               if (door.gameObject==null)
                   return;
               door.gameObject.GetComponent<Collider>().enabled = false;
               door.gameObject.SetActive(false);
               Destroy(door.gameObject);
             
               if (taskManager.curTaskId != 4)
               {
                   GameStart();
                   
               }
               else
               {

                   StartDance();
               }
           }
       },5);
    }
    
    public void CreatePlayer()
    {
        Instantiate(playerPre);
    }

    public void CreateEnemy(Vector3 pos,Vector3 eulerAngles)
    {
        var curEnemy=Instantiate(enemyPre,pos,Quaternion.identity);
        curEnemy.transform.eulerAngles = eulerAngles;
        curEnemy.GetComponent<Enemy>().Init();
        enemy = curEnemy.GetComponent<Enemy>();
    }

    public void CreateMirrorPre()
    {
        var curMirror=Instantiate(mirrorPre,GameLocal.Ins.mirrorPos.position,Quaternion.identity);
        curMirror.transform.eulerAngles = GameLocal.Ins.mirrorPos.eulerAngles;
        curMirror.GetComponent<Enemy>().Init();
        //enemy = curEnemy.GetComponent<Enemy>();
    }

    public void PlayerHit()
    {
        if(enemy.isDie)
            return;
        //玩家UI模糊
        HUDPanel.Ins.ShowEgg();
        Debug.Log("击中玩家");
        PlaySound2DRPC("1.50");
    }

    public void EnemyHit(Vector3 pos)
    {
        if(enemy.isDie)
            return;
        enemy.Hit();
        PlaySound3DRPC("1.49",enemy.transform,true);
    }

    public void EnemyTimeHit()
    {
        enemy.isTimeHit = true;
    }

    public void StartGameEnd()
    {
        //任务结束
        PlaySound2DRPC("1.24");
        playerRightHand.ChangeHand();
        taskManager.OverTask();
        isStartGame = false;
        CreateGameStartDoor(GameLocal.Ins.self.transform.position.ReflectVectorXOZ()+new Vector3(0,0,2));
    }

    public void StartDance()
    {
        //开启舞会
        Debug.LogError("开启舞会场景");
        PlayBGM(1);
        taskManager.bg.SetActive(false);
        MonoSingleton<CoroutineTaskManager>.Instance.WaitSecondTodo(() =>
        {
            WinPanel.Show();
        },10f);
        MonoSingleton<CoroutineTaskManager>.Instance.WaitSecondTodo(() =>
        {
            Application.Quit();
        }, 90f);
        
    }
    

    private void Update()
    {
        //if (Input.GetKeyDown(KeyCode.Q))
        //{
        //    CreateEnemy(new Vector3(0, 1, 5), new Vector3(0, 180, 0));
        //    enemy.SetState(3);
        //    taskManager.curTaskId = 4;
        //    taskManager.StartTask();
        //}
        //更新指引箭头位置
        UpdateGuideArrowPosition();
        if (gameState == GameState.Playing)
        {
            curGameTime+=Time.deltaTime;
        }
    }

    public int GetNowTime()
    {
        return Mathf.RoundToInt(curGameTime);
    }

    #region  工具
    public string GetLessTimeStr()
    {
        string res = "";
        if (gameState == GameState.Playing)
        {
            res = FormatTime((int)(vistEnd - DateTime.Now.Subtract(new DateTime(1970, 1, 1)).TotalSeconds));
        }
        return res;
    }

    public int GetLessTimeSeconds()
    {
        return (int)(vistEnd - DateTime.Now.Subtract(new DateTime(1970, 1, 1)).TotalSeconds);
    }

    // 时分秒
    public string FormatTime(int totalSeconds)
    {
        int hours = totalSeconds / 3600;
        // string hh = hours < 10 ? "0" + hours : hours.ToString();
        int minutes = (totalSeconds - hours * 3600) / 60;
        string mm = minutes < 10f ? "0" + minutes : minutes.ToString();
        int seconds = totalSeconds - hours * 3600 - minutes * 60;
        string ss = seconds < 10 ? "0" + seconds : seconds.ToString();
        return string.Format("{0}:{1}", mm, ss);
    }
    #endregion
    #region 指引系统

    /// <summary>
    /// 初始化指引箭头
    /// </summary>

    private void InitializeGuideArrow()
    {
        // 检查预制体是否存在
        if (GuideArrowPre == null)
        {
            Debug.LogError("GuideArrowPre 预制体未分配！");
            return;
        }

        // 实例化指引箭头预制体
        guideArrowInstance = Instantiate(GuideArrowPre);
        guideArrowInstance.name = "GuideArrow";

        // 获取指引箭头组件
        guideArrowComponent = guideArrowInstance.GetComponent<GuideArrowPath>();
        if (guideArrowComponent == null)
        {
            Debug.LogError("GuideArrowPre 预制体上没有找到 GuideArrowPath 组件！");
            Destroy(guideArrowInstance);
            guideArrowInstance = null;
            return;
        }

        // 设置指引箭头的层级和高度
        guideArrowComponent.obstacleMask = LayerMask.GetMask("Default"); // 根据实际障碍物层级设置
        guideArrowComponent.pathHeight = 0.5f; // 设置路径显示高度

        // 初始隐藏指引
        guideArrowComponent.ClosePath();

        // 可选：设置父物体，保持场景整洁
        guideArrowInstance.transform.SetParent(this.transform);

        // 初始化玩家位置
        if (GameLocal.Ins.self != null)
        {
            lastPlayerPosition = GameLocal.Ins.self.transform.position;
        }
    }

    /// <summary>
    /// 更新指引箭头位置（实时跟随玩家移动）
    /// </summary>

    // 修改 UpdateGuideArrowPosition 方法
    private void UpdateGuideArrowPosition()
    {
        if (!isGuideArrowActive || GameLocal.Ins.startDoorPos  == null || GameLocal.Ins.self == null)
            return;

        // 获取玩家当前位置
        Vector3 currentPlayerPosition = GameLocal.Ins.self.transform.position;

        // 检查冷却时间
        if (Time.time - lastPathUpdateTime < updatePathCooldown)
            return;

        // 检查玩家是否移动了足够远的距离
        float distanceMoved = Vector3.Distance(currentPlayerPosition, lastPlayerPosition);

        if (distanceMoved > updatePathThreshold)
        {
            // 获取门的位置
            Vector3 doorPosition = GameLocal.Ins.startDoorPos.transform.position;

            // 使用曲线检测和路径平滑
            UpdatePathWithCurveDetection(currentPlayerPosition, doorPosition);

            // 更新记录的位置和时间
            lastPlayerPosition = currentPlayerPosition;
            lastPathUpdateTime = Time.time;
        }
    }

    // 新增：使用曲线检测和路径平滑的方法
    private void UpdatePathWithCurveDetection(Vector3 start, Vector3 end)
    {
        if (guideArrowComponent == null)
            return;

        // 1. 检测是否为直接可见路径
        if (IsDirectPathClear(start, end))
        {
            // 直接路径，使用简单的贝塞尔曲线
            smoothedPath = GenerateBezierCurve(start, end, 0.2f);
            guideArrowComponent.SetPath(smoothedPath);  // 这里使用 List<Vector3> 参数
            isPathSmoothed = true;
            return;
        }

        // 2. 间接路径，使用优化的绕路算法
        List<Vector3> newPath = CalculateObstacleAvoidancePath(start, end);

        if (newPath != null && newPath.Count > 1)
        {
            // 应用路径平滑
            smoothedPath = SmoothPath(newPath);
            guideArrowComponent.SetPath(smoothedPath);  // 这里使用 List<Vector3> 参数
            isPathSmoothed = true;
            lastPathPoints = smoothedPath.ToArray();
        }
    }

    // 新增：检查直接路径是否畅通
    private bool IsDirectPathClear(Vector3 start, Vector3 end)
    {
        Vector3 direction = (end - start).normalized;
        float distance = Vector3.Distance(start, end);

        // 使用射线检测，同时检查多个点
        int checkPoints = Mathf.CeilToInt(distance / 0.5f);
        for (int i = 0; i <= checkPoints; i++)
        {
            float t = (float)i / checkPoints;
            Vector3 checkPoint = Vector3.Lerp(start, end, t);

            // 检查周围小范围的碰撞
            if (Physics.CheckSphere(checkPoint, 0.3f, guideArrowComponent.obstacleMask))
            {
                return false;
            }
        }

        return true;
    }

    // 新增：生成贝塞尔曲线路径
    private List<Vector3> GenerateBezierCurve(Vector3 start, Vector3 end, float curveHeight)
    {
        List<Vector3> curvePoints = new List<Vector3>();
        int segments = 20; // 曲线分段数

        // 计算控制点（在中间稍微抬起形成曲线）
        Vector3 controlPoint = (start + end) * 0.5f + Vector3.up * curveHeight;

        for (int i = 0; i <= segments; i++)
        {
            float t = (float)i / segments;

            // 二次贝塞尔曲线公式
            Vector3 point = (1 - t) * (1 - t) * start +
                            2 * (1 - t) * t * controlPoint +
                            t * t * end;

            curvePoints.Add(point);
        }

        return curvePoints;
    }

    // 新增：优化后的绕障碍物路径计算
    private List<Vector3> CalculateObstacleAvoidancePath(Vector3 start, Vector3 end)
    {
        List<Vector3> path = new List<Vector3>();
        path.Add(start);

        // 尝试寻找最佳绕行点
        Vector3 bypassPoint = FindOptimalBypassPoint(start, end);

        if (bypassPoint != start)
        {
            // 如果有绕行点，构建曲线路径
            List<Vector3> curve1 = GenerateBezierCurve(start, bypassPoint, 0.3f);
            List<Vector3> curve2 = GenerateBezierCurve(bypassPoint, end, 0.3f);

            path.AddRange(curve1.Skip(1));
            path.AddRange(curve2.Skip(1));
        }
        else
        {
            // 没有找到绕行点，使用简单的曲线
            path = GenerateBezierCurve(start, end, 0.2f);
        }

        return path;
    }

    // 新增：寻找最优绕行点
    private Vector3 FindOptimalBypassPoint(Vector3 from, Vector3 to)
    {
        Vector3 direction = (to - from).normalized;
        float distance = Vector3.Distance(from, to);

        // 定义多个探测方向
        Vector3[] probeDirections = new Vector3[]
        {
        Vector3.Cross(direction, Vector3.up).normalized,    // 右侧
        -Vector3.Cross(direction, Vector3.up).normalized,   // 左侧
        (Vector3.Cross(direction, Vector3.up).normalized + Vector3.up * 0.3f).normalized, // 右上
        (-Vector3.Cross(direction, Vector3.up).normalized + Vector3.up * 0.3f).normalized // 左上
        };

        float[] probeDistances = new float[] { 2f, 3f, 4f, 5f };

        Vector3 bestBypassPoint = from;
        float bestScore = float.MaxValue;

        foreach (Vector3 probeDir in probeDirections)
        {
            foreach (float probeDist in probeDistances)
            {
                Vector3 probePoint = from + probeDir * probeDist;

                // 检查探测点是否可行
                if (!Physics.CheckSphere(probePoint, 0.5f, guideArrowComponent.obstacleMask))
                {
                    // 计算路径分数（距离 + 转向角度）
                    float pathLength = Vector3.Distance(from, probePoint) +
                                     Vector3.Distance(probePoint, to);
                    float angleCost = Vector3.Angle(probePoint - from, to - probePoint) * 0.1f;
                    float score = pathLength + angleCost;

                    if (score < bestScore)
                    {
                        bestScore = score;
                        bestBypassPoint = probePoint;
                    }
                }
            }
        }

        return bestBypassPoint;
    }

    // 新增：路径平滑算法
    private List<Vector3> SmoothPath(List<Vector3> rawPath)
    {
        if (rawPath.Count < 3)
            return rawPath;

        List<Vector3> smoothed = new List<Vector3>();
        smoothed.Add(rawPath[0]);

        // 使用简单的平均平滑
        for (int i = 1; i < rawPath.Count - 1; i++)
        {
            Vector3 smoothedPoint = (rawPath[i - 1] + rawPath[i] + rawPath[i + 1]) / 3f;
            smoothed.Add(smoothedPoint);
        }

        smoothed.Add(rawPath[rawPath.Count - 1]);

        return smoothed;
    }

    /// <summary>
    /// 显示指引箭头
    /// </summary>

    public void ShowGuideArrow()
    {
        if (guideArrowComponent != null && GameLocal.Ins.startDoorPos != null && GameLocal.Ins.self != null)
        {
            guideArrowComponent.ShowPath();
            isGuideArrowActive = true;

            // 初始化路径
            Vector3 playerPosition = GameLocal.Ins.self.transform.position;
            Vector3 doorPosition = GameLocal.Ins.startDoorPos.transform.position;
            UpdatePathWithCurveDetection(playerPosition, doorPosition);

            // 记录初始位置
            lastPlayerPosition = playerPosition;
        }
    }

    /// <summary>
    /// 隐藏指引箭头
    /// </summary>

    public void HideGuideArrow()
    {
        if (guideArrowComponent != null)
        {
            guideArrowComponent.ClosePath();
            isGuideArrowActive = false;
        }
    }

    /// <summary>
    /// 开始指引（在创建门后调用）
    /// </summary>

    public void StartGuide()
    {
        if (GameLocal.Ins.startDoorPos != null && GameLocal.Ins.self != null)
        {
            ShowGuideArrow();

            // 初始化路径
            Vector3 playerPosition = GameLocal.Ins.self.transform.position;
            Vector3 doorPosition = GameLocal.Ins.startDoorPos.transform.position;

            // 使用新的路径计算方法
            UpdatePathWithCurveDetection(playerPosition, doorPosition);

            // 记录初始位置
            lastPlayerPosition = playerPosition;
        }
    }

    /// <summary>
    /// 停止指引（在游戏开始或删除门时调用）
    /// </summary>

    public void StopGuide()
    {
        HideGuideArrow();
    }

    /// <summary>
    /// 清理指引箭头实例
    /// </summary>

    public void CleanupGuideArrow()
    {
        if (guideArrowInstance != null)
        {
            Destroy(guideArrowInstance);
            guideArrowInstance = null;
            guideArrowComponent = null;
            isGuideArrowActive = false;
        }
    }

    #endregion
}