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

/// <summary>
/// 无人机
/// </summary>
public class UnmannedAerialVehicle : MonoBehaviour
{
    /// <summary>
    /// 所属无人机蜂群
    /// </summary>
    public UnmannedAerialVehicleManage unmannedAerialVehicleManage;

    #region 无人机数据
    /// <summary>
    /// 续航时间
    /// </summary>
    public string batteryLife;
    /// <summary>
    /// 抗风等级
    /// </summary>
    public string classificationWindResistance;
    /// <summary>
    /// 最大飞行速度
    /// </summary>
    public string maximumFlyingSpeed;
    /// <summary>
    /// RCS
    /// </summary>
    public string RCS;
    /// <summary>
    /// 卫星定位频点
    /// </summary>
    public string satellitePositioningFrequency;
    /// <summary>
    /// 数据链通信频点
    /// </summary>
    public string dataLinkCommunicationFrequency;
    /// <summary>
    /// 电子侦察能力
    /// </summary>
    public string electronicReconnaissanceCapability;
    /// <summary>
    /// 光学侦察能力
    /// </summary>
    public string opticalReconnaissanceCapability;
    #endregion
    /// <summary>
    /// 飞行速度
    /// </summary>
    public float FireSpeed = 20.0f;
    /// <summary>
    /// 检测范围半径
    /// </summary>
    public float detectionRadius = 50; // 
    /// <summary>
    /// 是否正在攻击目标
    /// </summary>
    private bool isEngagedTarget = false;
    /// <summary>
    /// 爆炸预制体
    /// </summary>
    public GameObject explodePrefab;

    // Start is called before the first frame update
    void Start()
    {
        
    }

    // Update is called once per frame
    void Update()
    {
        if (unmannedAerialVehicleManage && unmannedAerialVehicleManage.isStartRehearsing)
        {
            switch (unmannedAerialVehicleManage.pattern)
            {
                case Pattern.待机:
                    break;
                case Pattern.警戒:
                    AttackATarget();
                    break;
                case Pattern.攻击:
                    AttackATarget();
                    break;
            }
        }
    }

    /// <summary>
    /// 攻击目标
    /// </summary>
    public void AttackATarget()
    {
        if (!isEngagedTarget)
        {
            List<Collider> colliders = Physics.OverlapSphere(transform.position, detectionRadius).ToList(); // 检索范围内的所有碰撞体
            List<Collider> colliders1 = colliders.FindAll(x => x.transform.tag == "AttackTarget");
            if (colliders1.Count>0)
            {
                int _number= Random.Range(0, colliders1.Count-1);
                isEngagedTarget = true;
                Debug.Log(colliders1[_number].transform.name);
                AttAck(colliders1[_number].transform);
            }
        }
    }

    /// <summary>
    /// 发起攻击
    /// </summary>
    private void AttAck(Transform target)
    {
        Debug.Log("开始攻击目标..:" + target.name);
        Vector3 _v3 = target.position;
        transform.DOLookAt(_v3, 0.1f).OnComplete(() => {
            float distance = Vector3.Distance(transform.position, target.position);
            transform.DOMove(target.position, distance / FireSpeed).SetEase(Ease.Linear).OnComplete(()=> {
                if (!target)
                {
                    BeAssaulted("没有攻击到目标");
                }
            });
        });
    }


    private void OnTriggerEnter(Collider other)
    {
        if (other.tag == "AttackTarget")
        {
            // 销毁objectToDestroy对象
            BeAssaulted("攻击到目标");
            GameObject Bao = Instantiate(explodePrefab, other.transform);
            Bao.transform.localPosition = Vector3.zero;
            Bao.transform.SetParent(null);
            Bao.SetActive(true);
            Destroy(other.gameObject);
        }
    }

    /// <summary>
    /// 被攻击
    /// </summary>
    /// <param name="type"></param>
    public void BeAssaulted(string type)
    {
        switch (type) {
            case "激光打击":
                GameObject Bao1 = Instantiate(explodePrefab, transform);
                Bao1.transform.localPosition = Vector3.zero;
                Bao1.transform.SetParent(null);
                Bao1.SetActive(true);
                DistroyThis();
                Debug.Log(transform.name+"被激光打击销毁了");
                break;
            case "无线电干扰":
                Vector3 _pos = transform.position - new Vector3(0, 30, 0);
                transform.LookAt(_pos);
                transform.DOMove(_pos, 1).OnComplete(() => {
                    GameObject Bao2 = Instantiate(explodePrefab, transform);
                    Bao2.transform.localPosition = Vector3.zero;
                    Bao2.transform.SetParent(null);
                    Bao2.SetActive(true);
                    DistroyThis();
                });
                Debug.Log(transform.name + "无人机被无线电干扰销毁了");
                break;
            case "攻击到目标":
                GameObject Bao3 = Instantiate(explodePrefab, transform);
                Bao3.transform.localPosition = Vector3.zero;
                Bao3.transform.SetParent(null);
                Bao3.SetActive(true);
                DistroyThis();
                Debug.Log(transform.name + "无人机自杀式攻击销毁了");
                break;
            case "没有攻击到目标":
                GameObject Bao4 = Instantiate(explodePrefab, transform);
                Bao4.transform.localPosition = Vector3.zero;
                Bao4.transform.SetParent(null);
                Bao4.SetActive(true);
                DistroyThis();
                Debug.Log(transform.name + "无人机自杀式销毁了");
                break;
            default:
                break;

        }

    }

    void DistroyThis()
    {
        Destroy(gameObject);
    }


    void OnDestroy()
    {
        transform.DOKill();
        //
    }
}