using System.Collections.Generic;
using UnityEngine;
using DG.Tweening;

public class Arrow : MonoBehaviour
{
    private Rigidbody newRigidbody;
    public Vector3 shootOutPosition;
    public float flyTime = 0;
    public bool isHit = false;
    public ArmBow armBow;
    public static float speed = GameMgr.RealSizeToGameSize(60);

    void Awake()
    {
        GameMgr.ins.gameMode.PauseTimeCounting(this);
    }

    void Start()
    {
        newRigidbody = this.gameObject.AddComponent<Rigidbody>();
        float speedCopy = speed;
        if (GameAssistUI.ins) {
            speedCopy *= (1 + GameAssistUI.ins.shootScaleValue);
        } 

        //箭刚射出去时，角度往上抬一点
        float distance = TargetBody.ins.GetDistance();
        this.transform.Rotate(Vector3.left, Mathf.Clamp(distance / 50 * 20, 0, 20));


        newRigidbody.velocity = this.transform.forward * speedCopy;
        newRigidbody.collisionDetectionMode = CollisionDetectionMode.ContinuousDynamic;
        
        Transform cameraTF = this.transform.Find("Camera");
        cameraTF.gameObject.SetActive(true);
        cameraTF.gameObject.AddComponent<ArrowCamera>().arrow = this;

        this.activeEffectTrail(true);
    }

    void OnDestroy() {
        GameMgr.ins.gameMode.ResumeTimeCounting(this);
        if (this.newRigidbody) 
        {
            Destroy(this.newRigidbody);
        }
    }

    Vector3 position;
    Quaternion rotation;

    void FixedUpdate()
    {
        if (newRigidbody) {
            transform.forward = newRigidbody.velocity.normalized;
        }
        if (!isHit && flyTime >= 0) {
            flyTime += Time.deltaTime;
            this.position = this.transform.position;
            this.rotation = this.transform.rotation;
            if (flyTime > 4) {
                Destroy(gameObject);
                GameMgr.ins.gameMode.HitTarget(0);
                AudioMgr.ins.PlayCheer(false);
                nextShoot();
            }
            this.UpdateRotate();
        }
        // this.UpdateShake();
    }

    public void Hit() {
        gameObject.GetComponent<BoxCollider>().enabled = false;
        if (newRigidbody) {
            newRigidbody.useGravity = false;
            newRigidbody.velocity = Vector3.zero;
            Destroy(newRigidbody);
            newRigidbody = null;
        }
        isHit = true;
        // this.Shake();
        this.activeEffectCyclone(false);
        this.activeEffectBomb(true);
        this.activeEffectTrail(false);
        Debug.Log("Speed " + GameMgr.GameSizeToRealSize(Arrow.speed));
        Debug.Log("Distance " + GameMgr.GameSizeToRealSize(Vector3.Distance(this.getHeadPosition(), shootOutPosition)));
    }

    public Vector3 getHeadPosition() {
        return this.transform.Find("Head").position;
    }

    /**箭矢旋转 */
    private Vector3 rotateV3 = new Vector3(0, 0, 1400);
    private void UpdateRotate() {
        this.transform.Find("Head").Rotate(rotateV3 * Time.deltaTime, Space.Self);
    }

    /**箭矢震动 */
    private bool shaking = false;
    private float shakeTime = 0;
    private float shakeTimeMax = 0.5f;
    private float shakeRange = 5;
    private int shakeDirection = 1;
    private Vector3 shakeAngles = new Vector3();

    private void Shake() 
    {
        this.shaking = true;
        this.shakeTime = 0;
        this.shakeDirection = 1;
    }

    private void UpdateShake() 
    {
        if (!this.shaking) { 
            return;
        }
        Transform transform = this.transform.Find("Head").transform;
        float shakeRangeNow = (1 - this.shakeTime / this.shakeTimeMax) * this.shakeRange;
        if (shakeRangeNow <= 0) {//震动结束
            this.shaking = false;
            this.shakeAngles.x = 0;
        } else {
            this.shakeAngles.x = -this.shakeDirection * shakeRangeNow;
            this.shakeDirection *= -1;
        }
        transform.localEulerAngles = this.shakeAngles;
        this.shakeTime += Time.deltaTime;
    }

    //进入下一轮射击
    bool hasDoneNextShoot = false;
    public void nextShoot() {
        if (hasDoneNextShoot) return;
        hasDoneNextShoot = true;
        GameMgr.ins.gameMode.ResumeTimeCounting(this);
        if (!GameMgr.ins.gameMode.DoNextShoot()) return;
        this.armBow.readyShoot();
    }

    void OnCollisionEnter(Collision collision) {
        if ((1 << collision.gameObject.layer) != LayerMask.GetMask("Target")) 
        {
            this.Hit();
            GameMgr.ins.gameMode.HitTarget(0);
            AudioMgr.ins.PlayCheer(false);
        }
        this.transform.SetParent(collision.transform.parent);
    }

    public void activeEffectCyclone(bool value)
    {
        this.transform.Find("Head/EF_kuosanquan").gameObject.SetActive(value);
        if (!value) return;
        ParticleSystemRenderer ps = this.transform.Find("Head/EF_kuosanquan/kuosan").GetComponent<ParticleSystemRenderer>();
        ParticleSystemRenderer ps1 = this.transform.Find("Head/EF_kuosanquan/kuosan (1)").GetComponent<ParticleSystemRenderer>();
        DOTween.To(() => ps.minParticleSize, value => {
            ps.minParticleSize = value;
            ps.maxParticleSize = value;
        }, 0.4f, 0.6f);
        DOTween.To(() => ps1.minParticleSize, value => {
            ps1.minParticleSize = value;
            ps1.maxParticleSize = value;
        }, 0.8f, 0.6f);
    }

    void activeEffectBomb(bool value) 
    {
        this.transform.Find("Head/EF_baodian").gameObject.SetActive(value);
    }

    void activeEffectTrail(bool value)
    {
        this.transform.Find("EF_tuowei").gameObject.SetActive(value);
        this.transform.Find("EF_tuowei/Trail").GetComponent<TrailRenderer>().time = 1.6f / speed;
    }
}