using Manager;
using System;
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.UI;

public class BossAI : CombaSystem
{
    //基本信息类
    public BossInfo _info;
    Rigidbody2D rb;

    //玩家信息，待优化
    PlayerControler player;
    CharacterCombat characterCombat;

    private Transform currentTarget;


    //玩家与敌人的距离方向
    private float dis;
    private Vector2 dir;

    [Header("追击与攻击距离")]
    public float cheseDistance = 3f;
    public float attackDistance = 0.8f;

    [SerializeField, Header("技能搭配")] private List<CombatAblilityBase> abilitys = new List<CombatAblilityBase>();
    private CombatAblilityBase currentAblity;
    //判断偏移
    private List<Vector2> ablityOff;
    //攻击段数
    private int attackCount;

    //计时器
    public GameObject timer;

    public bool isBegin = false;

    List<CombatAblilityBase> tempAb = new List<CombatAblilityBase>();//可用技能组
    int ran;//技能组索引

    CameraVR cameraVR;

    public bool isYuancheng=false;

    protected override  void Awake()
    {
        base.Awake();

        _animator = GetComponentInChildren<Animator>();
        rb = GetComponentInParent<Rigidbody2D>();
        currentTarget = GameObject.FindWithTag("Player").transform;

        _info = GetComponentInParent<BossInfo>();

        foreach (var ab in abilitys)
        {
            ab.Init(this,_animator);
        }

       
    }
    private void Update()
    {
        if (!_animator.CheckAnimationTag("summon")&&isBegin)
        {
            if (!isDie) //死亡或咆哮状态的时候不会进行攻击
            {
                MoveBoss();
            }
        }

    }
    private void FixedUpdate()
    {
        if (currentAblity != null)
        {
            currentAblity.UpdateAblity(currentTarget);
        }
    }
    private void MoveBoss()
    {
        if (_animator.CheckAnimationTag("Wake"))
            return;

        if (_animator.CheckAnimationTag("hit") || _animator.CheckAnimationTag("Attack")||_animator.CheckAnimationTag("Attack_out"))
        {
            return;
        }
        if (currentTarget == null)
            return;

        LockTarget(currentTarget);

        dis = Vector2.Distance(currentTarget.position, transform.position);
        if (dis < cheseDistance)
        {
            rb.velocity = Vector2.zero;
            //近战
            if (dis < attackDistance)
            {
                //_animator.Play("attack-charge");
                currentAblity = GetAblity(AblityClass.MelleeAttack);
                if (currentAblity != null)
                {
                    //SoundManager.Instance.PlayEffect(_audio, currentAblity.GetAbliltyVFX());

                    _animator.Play(currentAblity.GetAbliltyName());

                    currentAblity.UseAblity(currentAblity);

                }
                return;
            }
            //远程
            else
            {
                currentAblity = GetAblity(AblityClass.YuanChenAttack);
                if (currentAblity != null)
                {
                    //SoundManager.Instance.PlayEffect(_audio, currentAblity.GetAbliltyVFX());

                    _animator.Play(currentAblity.GetAbliltyName());

                    currentAblity.UseAblity(currentAblity);

                }
                return;
            }
        }
        else
        {
            if (!_info.isCanMove)
                return;
            _animator.Play("run");
            rb.velocity = dir * _info._moveSpeed;
        }

    }
    private void LockTarget(Transform target)
    {
        if (!_info.isLockTarget)
            return;
        dir = (target.position - transform.position).normalized;
        if(_info.isFix)
        {
            Fix(dir);
        }
    }
    private void Fix(Vector2 dir)
    {
        if (dir.x < 0)
        {
            transform.root.localScale = new Vector3(1, 1, 1);
        }
        if (dir.x > 0)
        {
            transform.root.localScale = new Vector3(-1, 1, 1);
        }
    }


    public void Yuancheng()
    {
        isYuancheng = true;
    }
    public void OnCloseYuancheng()
    {
        isYuancheng = false;
    }
    public void TeleportEvent()
    {
        if (currentTarget == null) return;
        transform.root.transform.position = currentTarget.transform.position;
    }

    /// <summary>
    /// 近战攻击
    /// </summary>
    public override void MelleeAttackAnimEvent()
    {
        if (currentAblity != null)
        {
            AttackAreaPos = transform.position;

            ablityOff = currentAblity.GetAbliltyOffest();

            AttackAreaPos.x += ablityOff[attackCount].x;
            AttackAreaPos.y += ablityOff[attackCount].y;
            attackCount++;
            if (attackCount >= ablityOff.Count)
            {
                attackCount = 0;
            }

            if (_info.isCanMove)
            {
                AttackAreaPos.x = this.transform.parent.localScale.x < 0 ? Mathf.Abs(offsetX) : -Mathf.Abs(offsetX);
            }
        }
        else
        {
            base.MelleeAttackAnimEvent();
        }

        Collider2D[] hitColliders = Physics2D.OverlapBoxAll(AttackAreaPos, attackSize, 0, layerMasks[0]);
        if(currentAblity!=null&&currentAblity.GetAbliltyVFX()!=null)
        {
            SoundManager.Instance.PlayEffect(_audio, currentAblity.GetAbliltyVFX());
        }

        foreach (Collider2D hitInfo in hitColliders)
        {

            player = hitInfo.GetComponent<PlayerControler>();
            if (player != null && player.GetIsDodge())
            {
                Debug.Log("玩家无敌");
                _animator.speed = 0;
                StartCoroutine(ScalTime(1f));

                return;
            }
            characterCombat = hitInfo.GetComponentInChildren<CharacterCombat>();
            //if(characterCombat._animator.CheckAnimationTag("Roll"))
            //{
            //    //无敌闪避
            //    _animator.speed = 0;
            //    StartCoroutine(ScalTime(1f));
            //    return;
            //}

            characterCombat.TakeDamage(attack);
            Debug.Log("玩家受伤");
        }
    }
    IEnumerator ScalTime(float timer)
    {
        yield return new WaitForSeconds(timer);
        _animator.speed = 1;
    }
    public override void TakeDamage(string aniName, float attack)
    {

        if (isDie || _animator.CheckAnimationTag("summon")||_animator.CheckAnimationTag("Wake"))//咆哮不会被攻击
            return;
        Debug.Log("被玩家攻击" + _info.attackedCount);

        _info.attackedCount++;//耐力次数增加

        if (_info.attackedCount > _info.maxAttackedCount)
        {
            _info.attackedCount = 0;//重新计数

            _animator.Play("summon");
            if(_summerClip!=null)
            {
                SoundManager.Instance.PlayEffect(_audio,_summerClip);
            }

            //吼叫


            //摄像机震动

             cameraVR=UnityExpandFunction.GetCamera();
            if (cameraVR != null)
            {
                cameraVR.ShakeCamera(1f, 5);
            }

            //回血
            currentHp += 200;
            if (currentHp >= maxHp)
                currentHp = maxHp;
            OnHit?.Invoke(currentHp);

            return;
        }

        //受伤
        currentHp -= attack;//血量减少
        OnHit?.Invoke(currentHp);//执行受伤事件，血量UI减少
        if (currentHp <= 0)
        {
            isDie = true;

       

            return;
        }
        if(_animator.CheckAnimationTag("Attack"))
        {
            return;
        }
        _animator.Play(aniName);
    }
    private CombatAblilityBase GetAblity(AblityClass ablity)
    {
        tempAb.Clear();
        foreach (var ab in abilitys)
        {
            if (ab.GetAbliltyIsDone() && ab.GetAbliltyClass() == ablity)
            {
                tempAb.Add(ab);
            }
        }
        if(tempAb.Count==0)
        {
            return null;
        }
        ran = UnityEngine.Random.Range(0,tempAb.Count);
        if (tempAb[ran] != null)
            return tempAb[ran];
        return null;
    }


    public void SetBegin(bool b)
    {
        isBegin = b;
        //开始
        _animator.Play("sleeping");
        UIManager.Instance.Show<UIEnterScene>().InitInfo(_info.bossHead, _info.bossName);
    }
    private void OnDrawGizmosSelected()
    {

        Gizmos.color = Color.yellow;
        Gizmos.DrawWireSphere(transform.position, cheseDistance);

        Gizmos.color = Color.red;
        Gizmos.DrawWireSphere(transform.position, attackDistance);
    }
}