using Cinemachine;
using Newtonsoft.Json;
using System;
using System.Collections;
using System.Collections.Generic;
using Unity.Collections.LowLevel.Unsafe;
using Unity.VisualScripting;
using UnityEngine;
using UnityEngine.Animations;

using UnityEngine.Rendering.PostProcessing;
using UnityEngine.SceneManagement;

/* 本代码控制室内场景
 * 控制宠物在Home场景动画
 * ！！！特别注意：Dog Initializer 必须挂载在同一个组件下，并且必须在本组价下方。确保比本组件先执行
 * 主要调节参数在FixedUpdate代码段里面
 * 提示用户注册
 */

public class HomeController : MonoBehaviour
{

    public static HomeController Instance;

    public static List<DogInScene> dogsInScene = new List<DogInScene>();
    public static bool listenBreak = false;       // 当按下说话按键后，所有狗停止行动，立刻切换到监听状态。
    public static CinemachineVirtualCamera playerCam, dogCam;
    public static DateTime lastCameraChange;
    private bool isSleepChecked = false;        // 用于检测第一次睡眠检测是否执行完成
    // Start is called once before the first execution of Update after the MonoBehaviour is created
    private GameObject centerOfDogs;
    private bool isInteractMode = false;        // 是否在交互状态

    private void Awake()
    {
        if (Instance == null)
        {
            Instance = this;
            //DontDestroyOnLoad(gameObject);        // 必须关掉否则会导致原场景destroy不能执行
        }
        else
        {
            Destroy(gameObject);
        }
    }

    void Start()
    {
        dogsInScene.Clear();        // dogsInScene 是静态，每次启动要清空
        lastCameraChange = DateTime.Now;
        playerCam = GameObject.Find("VCam Player").GetComponent<CinemachineVirtualCamera>();
        dogCam = GameObject.Find("VCam Dog").GetComponent<CinemachineVirtualCamera>();
        centerOfDogs = GameObject.Find("CenterOfDogs");

        //InitialScene();
        StartCoroutine(InitialScene());
    }

    // Update is called once per frame
    void FixedUpdate()
    {
        if (SceneInitialCheck())      // 确保狗读取成功后执行代码
        {
            // 计算多只狗的中心位置，用于主摄像机瞄准
            centerOfDogs.transform.position = CenterOfDogs();

            if (!isSleepChecked)        // 每次启动检测只进行一次是否进入睡眠
            {
                // 判断是否在睡觉时间
                DateTime dateTime = DateTime.Now;

                foreach (var dog in dogsInScene)
                {
                    if (dateTime.Hour >= 22 || dateTime.Hour <= 5)      // 深夜模式，狗默认在睡觉状态
                    {
                        dog.Sleep();
                    }
                    else if (dog.dogProperty.stamina <= 10) { dog.Sleep(); }        // 狗体力太低了，进入睡觉模式
                    else
                    {
                        dog.IdleAnimation();
                    }
                }
                isSleepChecked = true;
            }

            #region 场景动画主循环
            // 检测狗是否被撞翻，如果是，立刻翻回来
            foreach (var dog in dogsInScene)
            {
                Quaternion curRotation = dog.gameObject.transform.rotation;
                if (curRotation.x != 0)
                {
                    curRotation.x = 0;
                }
                if (curRotation.z != 0)
                {
                    curRotation.z = 0;
                }
                dog.gameObject.transform.rotation = curRotation;
            }

            // 生成一个数据数用于随机开启动画，如果和狗的randomFactor相同就开启动画
            int randomCheck = UnityEngine.Random.Range(0, 51);

            if (isInteractMode)
            {
                foreach (var dog in dogsInScene)
                {
                    if (dog.dogState == "interact")
                    {
                        dogCam.m_LookAt = dog.gameObject.transform;
                        dogCam.Priority = 10;
                        // 单只狗在交互的状态控制代码
                        if (dog.isMovingToPlayer)
                        {
                            dog.MovetoPlayer();
                        }
                        if (dog.InteractTimeout())        // 如果交互时间结束，结束交互状态
                        {
                            dog.ExitInteract();
                            isInteractMode = false;        // 交互结束，退出交互状态
                        }
                    }
                }
            }
            else
            {
                foreach (var dog in dogsInScene)
                {
                    // 如果在eat drink进程结束前不执行随机场景代码
                    //if (dog.itemConsumeProgress)        // TODO 以后用DogInScene.dogState来判断
                    if (dog.dogState == "itemConsume")
                    {
                        if (dog.isMovingToBowl)
                        {
                            dog.MovetoBowl();
                        }
                    }
                    else
                    {
                        // 随机动作控制控制   
                        RandomCameraChange();

                        if (listenBreak)        // 如果用户按下说话按键，立刻切换到监听状态
                        {
                            dog.Listen();
                        }
                        else if (dog.isMoving)
                        {
                            dog.RandomMove();
                        }

                        else if (randomCheck == dog.randomFactor && !dog.isSleeping)        // 当狗自身的随机数和系统随机数相同时候触发。约100秒触发一次。
                        {
                            TimeSpan ts = DateTime.Now - dog.animationStartTime;
                            if (ts.Seconds >= 30)        // 如果距离上一个动作超过30秒就可以开始新的动作
                            {
                                float r = UnityEngine.Random.Range(0, 1f);
                                if (r > 0.6)       // 随机选择开始动画，或者移动
                                {
                                    dog.IdleAnimation();
                                }
                                else        // 狗狗开始步行移动
                                {
                                    dog.SetMoveSpeed(0);
                                    dog.moveSpeed = 0;
                                    dog.RandomMove();
                                }
                            }
                        }
                    }
                }
            }
            #endregion
        }

    }

    private void OnDestroy()
    {
        Debug.Log("Home scene is destoried.");
    }
    //void AniOrWalk(DogInScene dog)        // 狗在普通状态下，随机或播放动画，或移动
    //{

    //}

    // 初始化场景，加载所有的狗，并配置components，添加到dogsInScene List里面去
    //void InitialScene()
    IEnumerator InitialScene()
    {
        //yield return null;     
        //yield return null;     
        yield return null;      // 跳过三帧，初始化最多三只狗
        //Debug.Log(isInitialDone);
        foreach (var dog in UserProperty.dogs)
        {
            DogInScene dogInScene = new DogInScene(dog);
            float x = UnityEngine.Random.Range(-1f, 1f);        // 随机生成位置，考虑到手机评估宽度限制宽度
            float z = UnityEngine.Random.Range(-5f, 5f);
            float y = UnityEngine.Random.Range(0, 360f);
            var initPosition = new Vector3(x, 0, z);
            StartCoroutine(DogComponentAdd(dog));       // 加载狗的其他组件
            var dogGameObject = GameObject.Find(dog.dog_name);
            if (dogGameObject == null)
            {
                Debug.Log(dog.dog_name + "is not found in Home Controller");
            }
            dogGameObject.transform.position = initPosition;
            dogGameObject.transform.rotation = Quaternion.Euler(0, y, 0);
            dogGameObject.transform.localScale = new Vector3(2, 2, 2);
            dogInScene.SetGameObject(dogGameObject);
            dogsInScene.Add(dogInScene);
        }
    }

    // 加载狗的其他组件
    IEnumerator DogComponentAdd(DogProperty dogProperty)
    {
        // 等待一帧，确保所有 Start() 方法都执行完成
        yield return null;

        // 第一帧以后开始执行
        GameObject dog = GameObject.Find(dogProperty.dog_name);

        // 加载指定的Animator controller
        Animator animator = dog.GetComponent<Animator>();
        RuntimeAnimatorController animatorController = Resources.Load<RuntimeAnimatorController>("Dog/AnimatorController/shibaInu/HomeDogAnimatorController");
        if (dogProperty.breed == "shibaInu") { animatorController = Resources.Load<RuntimeAnimatorController>("Dog/AnimatorController/shibaInu/HomeDogAnimatorController"); }

        animator.runtimeAnimatorController = animatorController;

        // 加载Rigidbody
        Rigidbody rigidbody = dog.AddComponent<Rigidbody>();
        //Rigidbody rigidbody = dog.GetComponent<Rigidbody>();
        //rigidbody.isKinematic = true;
        rigidbody.mass = 10;
        rigidbody.linearDamping = 10;
        rigidbody.angularDamping = 10;
        //rigidbody.freezeRotation = true;
        rigidbody.constraints = RigidbodyConstraints.FreezePositionY | RigidbodyConstraints.FreezeRotation;
        rigidbody.interpolation = RigidbodyInterpolation.Interpolate;
        rigidbody.collisionDetectionMode = CollisionDetectionMode.ContinuousSpeculative;

        // 加载box collider
        BoxCollider boxCollider = dog.AddComponent<BoxCollider>();
        boxCollider.isTrigger = false;
        boxCollider.center = new Vector3(0, 0.25f, 0);
        boxCollider.size = new Vector3(0.12f, 0.45f, 0.54f);

        //yield return null;
    }

    // 场景随机切换镜头看向不同的狗
    void RandomCameraChange()
    {
        int delay = 10;     // 延迟10秒执行一次
        TimeSpan ts = DateTime.Now - lastCameraChange;
        if (ts.TotalSeconds < delay) { return; }
        int dogCount = dogsInScene.Count;
        int r = UnityEngine.Random.Range(0, dogCount + 1);
        if (r < dogCount)
        {
            dogCam.m_LookAt = dogsInScene[r].gameObject.transform;
            dogCam.Priority = 10;
            playerCam.Priority = 1;
        }
        else
        {
            dogCam.Priority = 1;
            playerCam.Priority = 10;
        }
        lastCameraChange = DateTime.Now;
    }

    // 检测场景是否初始化完成
    bool SceneInitialCheck()
    {
        bool initDone = true;
        if (dogsInScene.Count == UserProperty.dogs.Count)       // 检测是否所有狗都被加载
        {
            foreach (var dog in dogsInScene)
            {
                if (dog.gameObject.GetComponent<Animator>().runtimeAnimatorController == null)
                {
                    initDone = false;
                }
            }
        }
        else
        {
            initDone = false;
        }
        //Debug.Log("Home scene initial status:"+initDone);
        return initDone;
    }

    // 计算多只狗的中心位置，用于主摄像机瞄准
    private Vector3 CenterOfDogs()
    {
        Vector3 center = Vector3.zero;
        foreach (var dog in dogsInScene)
        {
            center += dog.gameObject.transform.position;
        }
        center /= dogsInScene.Count;
        return center;
    }

    #region 语音控制区
    // 用户语音呼唤上传，Voice call指令用于呼唤所有的狗，得分最高的过来进入交互模式
    public void VoiceCallRequest(string filePath)
    {
        Debug.Log("Voice Call Post request");

        string url = "/api/voice/call/";
        WWWForm form = new();
        form.AddField("user_id", UserProperty.userId);

        // TODO 待后台开发完成后，开启网络通讯功能，目前暂用临时直接赋值
        // StartCoroutine(WebController.PostRequest(url, form, filePath, callback: VoiceCallCallback));
        isInteractMode = true;        // 进入交互模式
        dogsInScene[0].SetupInteract();
        VoiceButtonOnlySwitch(true);        // 交互模式下关闭其他菜单
    }

    // 语音呼唤上传回调函数
    void VoiceCallCallback(string json)
    {
        Debug.Log("Voice call callback");
        var data = JsonConvert.DeserializeObject<Dictionary<string, object>>(json);
        if (data != null && data["status"].ToString() == "success")
        {
            // 刷新狗的数据
            string dogJson = data["dogs"].ToString();
            UserProperty.FreshDogInfo(dogJson);

            // TODO 根据返回结果设定focusdog
            float highestScore = 0;
            string highestScoreDogId = "";
            var scores = data["scores"].ToString();
            var scoresList = JsonConvert.DeserializeObject<Dictionary<string, float>>(scores);
            foreach (var score in scoresList)
            {
                if (score.Value > highestScore)
                {
                    highestScore = score.Value;
                    highestScoreDogId = score.Key;
                }
            }

            if (highestScore > 60)        // 60分以上才可以进入交互模式
            {
                GameData.focusDog = UserProperty.GetDogIndex(highestScoreDogId);
                VoiceButtonOnlySwitch(true);        // 交互模式下关闭其他菜单
                foreach (var dog in dogsInScene)
                {
                    if (dog.dogProperty.d_id == highestScoreDogId)
                    {
                        dog.SetupInteract();
                    }
                }
            }

            // focusdog 开启互动模式
            HomeController.dogsInScene[GameData.focusDog].dogState = "interact";
            HomeController.dogsInScene[GameData.focusDog].SetupInteract();

        }
        else
        {
            Debug.Log(data["message"]);
        }
    }

    // 用户语音呼唤上传，Voice call指令用于呼唤所有的狗，得分最高的过来进入交互模式
    public void VoiceCommandRequest(string filePath)
    {
        Debug.Log("Voice Command Post request");

        string url = "/api/voice/command/";
        WWWForm form = new();
        form.AddField("dog_id", UserProperty.dogs[GameData.focusDog].d_id);
        form.AddField("user_id", UserProperty.userId);

        StartCoroutine(WebController.PostRequest(url, form, filePath, callback: VoiceCommandCallback));
    }

    // 语音呼唤上传回调函数
    void VoiceCommandCallback(string json)
    {
        Debug.Log("Voice call callback");
        var data = JsonConvert.DeserializeObject<Dictionary<string, object>>(json);
        if (data != null && data["status"].ToString() == "success")
        {

            // 刷新狗的数据
            string dogJson = data["dogs"].ToString();
            UserProperty.FreshDogInfo(dogJson);

        }
        else
        {
            Debug.Log(data["message"]);
        }
    }

    // 改变Voice And Menu 菜单形态
    public void VoiceButtonOnlySwitch(bool state)
    {
        // 交互时候关闭其他菜单
        var vamUI = GameObject.Find("VoiceAndMenu");
        if (vamUI != null)
        {
            var UIdocument = vamUI.transform.Find("UIDocument").gameObject;
            var voiceController = UIdocument.GetComponent<VoiceController>();
            voiceController.isCommandMode = state;
        }
    }
    #endregion
}

public enum ItemGroup
{
    food,
    water
}