using Assets.MyGame.Scripts.Net;
using Assets.MyGame.Scripts.Net.API;
using Assets.MyGame.Scripts.Net.WebResponses;
using System.Collections;
using System.Collections.Generic;
using System.Text;
using UnityEngine;

public class BullitMove : MonoBehaviour
{
    public string userid;
    public float moveSpeed = 5;
    public float desTime = 10f;
    public string playerID;
    public GameObject effectPrefab;
    public GameObject diePrefab;
    float currShowTime = 0f;
    Vector3 vector3_startPosition;
    public bool isTriggerFirst = true;
    MonsterContral target;
    public Transform targetTra;
    public string bulletID;

    // 转向参数
    public float maxTurnSpeed = 15f;   // 最大转向速度（度/秒）
    public float minTurnSpeed = 2f;    // 最小转向速度
    public float distanceForMaxTurn = 1f;  // 在此距离内达到最大转向速度
    public float hitDistance = 0.5f;       // 命中判定距离

    void Awake()
    {
        Init();
    }

    bool isLock = false;
    public void Lock(MonsterContral monsterContral, Transform endTra)
    {
        foreach (var item in GetComponents<Collider2D>())
        {
            item.enabled = false;
        }
        isLock = true;
        target = monsterContral;
        targetTra = endTra;
    }

    public void NotLock()
    {
        foreach (var item in GetComponents<Collider2D>())
        {
            item.enabled = true;
        }
        isLock = false;
        target = null;
        targetTra = null;
    }

    public void Init()
    {
        vector3_startPosition = transform.position;
        vector3_startPosition.z = -400;
        transform.position = vector3_startPosition;
    }

    void Update()
    {
        // 子弹生命周期：超时自动销毁（默认10秒）
        currShowTime += Time.deltaTime;
        if (currShowTime >= desTime)
        {
            Destroy(gameObject);
            return;
        }

        if (isLock)
        {
            // 目标无效 → 解除锁定
            if (target == null || targetTra == null || !target.gameObject.activeInHierarchy || !targetTra.gameObject.activeInHierarchy)
            {
                NotLock();
                return;
            }

            Vector3 myPos = transform.position;
            myPos.z = 0;
            Vector3 targetPos = targetTra.position;
            targetPos.z = 0;

            float distance = Vector3.Distance(myPos, targetPos);

            // 命中判定
            if (distance <= hitDistance)
            {
                AttackFish(target);
                return;
            }

            // 计算指向目标的方向
            Vector3 targetDir = (targetPos - myPos).normalized;

            // 根据距离动态计算转向速度：距离越近转向越快
            float t = Mathf.Clamp01(1f - (distance / distanceForMaxTurn));
            float turnSpeed = Mathf.Lerp(minTurnSpeed, maxTurnSpeed, t);
            // 使用 RotateTowards 平滑转向（角度/秒）
            float currentAngle = Vector2.SignedAngle(transform.up, targetDir);
            float newAngle = Mathf.MoveTowardsAngle(currentAngle, 0f, turnSpeed * Time.deltaTime);
            transform.up = Quaternion.Euler(0, 0, newAngle) * transform.up;

            // 沿当前方向移动
            transform.position += transform.up * moveSpeed * Time.deltaTime;
        }
        else
        {
            // 非锁定模式：保持原有直线 + 反弹逻辑（不变）
            Vector3 targetPoint = transform.up.normalized * currShowTime * moveSpeed;
            targetPoint.z = 0;
            transform.position = vector3_startPosition + targetPoint;
        }
    }

    private void OnCollisionEnter2D(Collision2D collision)
    {
        if (isTriggerFirst)
        {
            if (collision.transform.tag == "Fish")
            {
                isTriggerFirst = false;
                if (effectPrefab != null)
                {
                    Instantiate(effectPrefab, transform.position, Quaternion.identity, transform.parent);
                }

                if (userid == GameManager.Instance.user.id)
                {
                    var monster = collision.transform.GetComponentInParent<MonsterContral>();
                    monster.monsterData.charactersHealth.OnHurt(10, CharacterHurtType.none);
                    Destroy(monster.gameObject);
                }
                Destroy(gameObject);
            }
        }
    }

    public static Quaternion RotationFromVector2(Vector2 dir)
    {
        float angle = Mathf.Atan2(dir.y, dir.x) * Mathf.Rad2Deg;
        return Quaternion.Euler(0, 0, angle);
    }

    Vector2 GetReflectionAngle(Vector2 velocity, Vector2 normal)
    {
        return Vector2.Reflect(velocity.normalized, normal.normalized);
    }

    public void OnTriggerEnter2D(Collider2D collision)
    {
        if (isTriggerFirst)
        {
            if (collision.tag == "Fish")
            {
                isTriggerFirst = false;
                var monster = collision.transform.GetComponentInParent<MonsterContral>();
                AttackFish(monster);
            }
            else if (collision.tag == "Wall")
            {
                Vector3 v3 = transform.eulerAngles;
                switch (collision.name)
                {
                    case "up":
                        v3.z = -v3.z + 180;
                        break;
                    case "down":
                        v3.z = -v3.z + 180;
                        break;
                    case "left":
                        v3.z = -v3.z;
                        break;
                    case "right":
                        v3.z = -v3.z;
                        break;
                    default:
                        break;
                }
                vector3_startPosition = transform.position;
                currShowTime = 0;
                transform.eulerAngles = v3;
            }
        }
    }

    private void AttackFish(MonsterContral monster)
    {
        if (effectPrefab != null)
        {
            Instantiate(effectPrefab, transform.position, Quaternion.identity, transform.parent);
        }

        if (userid == GameManager.Instance.user.id)
        {
            var v2 = GameManager.Instance.gameData.currRoomData;
            WebSocketSendList.KillFish(v2.roomId, userid, monster.monsterData.fishTypeConfig.fishNumber, monster.guid, (int)CreateFishManager.Instance.currGameType.currSitData.consumeGoldNum, bulletID, "63215f0afa3f5b25");
        }

        monster.OnHurt();
        Destroy(gameObject);
    }
}