using System;
using System.Collections;
using System.Collections.Generic;
using Unity.Collections.LowLevel.Unsafe;
using Unity.VisualScripting;
using UnityEditor.Animations;
using UnityEngine;
using UnityEngine.Rendering.PostProcessing;

/* 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
 */

public class HomeController : MonoBehaviour
{

    private List<DogInScene> dogsInScene = new List<DogInScene>();
    private List<Coroutine> existCouroutines;
    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。
    private bool isInitialDone = false;
    // Start is called once before the first execution of Update after the MonoBehaviour is created
    void Start()
    {
        

        
    }

    // Update is called once per frame
    void FixedUpdate()
    {
        if (!isInitialDone)
        {
            InitialScene();

            // 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
                {
                    dog.StartAnimation();
                }
            }
            isInitialDone = true;
        }
            // 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, 101);
        foreach (var dog in dogsInScene)
        {
            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.Move();
            }
            else if (randomCheck == dog.randomFactor)        // 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.StartAnimation();
                    }
                    else        // 狗狗开始步行移动
                    {
                        dog.SetMoveSpeed(0);
                        dog.Move();
                    }
                }
            }
        }
    }

    //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()
    {
        // 
        foreach (var dog in UserProperty.dogs)
        {
            DogInScene dogInScene = new DogInScene(dog);
            float x = UnityEngine.Random.Range(-5f, 5f);        // 随机生成位置
            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.name);
            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.name);

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

        animator.runtimeAnimatorController = animatorController;

        // 加载bbx collider
        BoxCollider boxCollider = dog.AddComponent<BoxCollider>();
        boxCollider.isTrigger = true;
        boxCollider.center = new Vector3(0, 0.225f, 0);
        boxCollider.size = new Vector3(0.2f, 0.45f, 0.6f);

    }
}

// 本类用于管理场景中所有狗的状态包括动画状态，随机数分配等
public class DogInScene
{
    public DogProperty dogProperty;
    //public Vector3 location, rotation, scale;
    public int randomFactor = UnityEngine.Random.Range(0, 101);        // 生成一个随机整数（0 到 100 之间），用于时间校验
    public DateTime animationStartTime;     // 记录上一个动画开始时间的，每个动作间隔至少30秒。
    private int activeIndex;      // 动物的活动指数
    private GameObject gameObject { set; get; }
    private Animator animator;
    private Vector3 moveToLocation;
    public bool isMoving;

    private float moveSpeed;     // 用来控制狗的移动速度 0 0.5跑，0.75快跑，1跳

    public void SetGameObject(GameObject gameObject)
    {
        this.gameObject = gameObject;
        this.animator = gameObject.GetComponent<Animator>();

    }
    public DogInScene(DogProperty property) {
        this.dogProperty = property;
        this.activeIndex = (int)Math.Round((property.liveliness + property.intimate) * UnityEngine.Random.Range(0.3f, 0.7f));
        this.isMoving = false;
    }

    public void StartAnimation()
    {
        this.animationStartTime = DateTime.Now;
        this.animator.SetInteger("activeIndex", activeIndex);
        Debug.Log("activeIndex:" + this.activeIndex);
        float randomIndex = UnityEngine.Random.Range(0, 1f);
        this.animator.SetFloat("randomIndex", randomIndex);
        Debug.Log("randomIndex:" + randomIndex);
    }

    public void SetMoveSpeed(float speed)
    {
        this.moveSpeed = speed;
    }

    public void Move()
    {
        
        if (isMoving == false)
        {
            animationStartTime = DateTime.Now;      // 设置动画开始时间
            float x = UnityEngine.Random.Range(-5f, 5f);
            float z = UnityEngine.Random.Range(-5f, 5f);
            this.moveToLocation = new Vector3(x, 0, z);
            //Debug.Log("move to location:" + x + ", " + z);
            this.isMoving = true;
            this.animator.SetTrigger("move");
            this.animator.SetBool("isMoving", true);
            this.animator.SetFloat("moveSpeed", this.moveSpeed);
        }
        this.gameObject.transform.LookAt(moveToLocation);
        this.gameObject.transform.position = Vector3.MoveTowards(gameObject.transform.position, moveToLocation, dogProperty.runSpeed * 0.02f * 0.01f);  // 第一个0.02对应50帧fixupdate画面，后面一个数字对应速度调整
        //Debug.Log("current position:" + gameObject.transform.position.x + "z:" + gameObject.transform.position.z);

        // 如果狗距离到达重点就停止跑步动画
        float distance = Vector3.Distance(gameObject.transform.position, moveToLocation);
        if (distance  < 0.1)
        {
            this.animator.SetBool("isMoving", false);
            this.isMoving = false;
            StartAnimation();
        }
    }

    public void Sleep()
    {
        this.animator.SetTrigger("sleep");
        this.animator.SetBool("isSleeping", true);  
    }

    public void Listen()
    {
        //StopCoroutine(movingCoroutine);
        this.animator.SetTrigger("listen");
        this.animator.SetBool("isListening", true);
        this.animator.SetBool("isMoving", false) ;
        this.animator.SetBool("isBarking", false);
        this.animator.SetBool("isSleeping", false);
        this.gameObject.transform.LookAt(new Vector3(0, 0, -6));

    }

    // 用来出来音频返回结果
    public void PostListen(bool result)
    {
        if (result)
        {
            // TODO 成功，狗狗跑过来，
        }
        else
        {
            this.animator.SetBool("isListening", false);
        }
    }
}