using System;
using System.Collections;
using System.Collections.Generic;
using AX.MessageSystem;
using UnityEngine;
using AX.InputSystem;
using UnityEngine.AI;
using AX.NetworkSystem;

public class CloneSafeAreaTool : CloneBase
{
    [SerializeField]
    [Tooltip("距离地面距离")]
    protected float Height = 0;
    public float AreaPrefabSize = 20;
    private NavMeshHit nhit;
    private NavMeshQueryFilter filter;
    private GameObject WaterCarParent;

    Vector2 vLU;
    Vector2 vLD;
    Vector2 vRU;
    Vector2 vRD;

    Ray rayLU;
    Ray rayLD;
    Ray rayRU;
    Ray rayRD;
    RaycastHit HitLU;
    RaycastHit HitLD;
    RaycastHit HitRU;
    RaycastHit HitRD;
    public bool cloneAble;//true表示能克隆或停放；否则不行

    private void Awake()
    {
        WaterCarParent = GameObject.Find("P_Cars").transform.Find("P_WaterTanker").gameObject;
        filter.agentTypeID = WaterCarParent.GetComponent<CloneCar>().clonePrefab.GetComponent<NavMeshAgent>().agentTypeID;
        filter.areaMask = WaterCarParent.GetComponent<CloneCar>().clonePrefab.GetComponent<NavMeshAgent>().areaMask;
    }

    public override void Execute(IMessage obj)
    {
        if (transform.childCount > 0)
        {//只能存在一个安全区
            return;
        }

        var gameObjID = (long)obj.Sender;
        var data = ((CloneCmdArgs)obj.Data);
        if (data.cloneObjType == cloneObjType)
        {
            var hitPoint = data.hitPos;

            CheckCloneAble(hitPoint);

            if (!cloneAble)
            {
                return;
            }

            Vector3 clonedObjPos = new Vector3(hitPoint.x, hitPoint.y + Height, hitPoint.z);

            var clonedObj = EntitiesManager.Instance.CreateObj(clonePrefab, clonedObjPos, transform, gameObjID);

            clonedObj.name = CloneObjNameTool.Instance().GetCloneObjectName(cloneObjType);

            SelectedObjs.gameObjs.Add(clonedObj);

            //设置克隆物体所在楼层等基本属性，属性从点击的对象上获取
            var hitObj = EntitiesManager.Instance.GetEntityByID(data.gameObjID);


            CloneGameObjInfo hitObjInfo = hitObj.GetComponent<CloneGameObjInfo>();
            CloneGameObjInfo cloneObjInfo = clonedObj.GetComponent<CloneGameObjInfo>();
            cloneObjInfo.gameObjType = cloneObjType;
            cloneObjInfo.UserID = CurrentUserInfo.mySelf.Id;
            cloneObjInfo.buildNum = hitObjInfo.buildNum;
            cloneObjInfo.floorNum = hitObjInfo.floorNum;
            cloneObjInfo.interlayerNum = hitObjInfo.interlayerNum;

            //克隆同步
            SafeAreaSyncData clonesync = new SafeAreaSyncData();

            clonesync.gameObjID = clonedObj.GetComponent<BaseGameObjInfo>().gameObjID;
            clonesync.gameObjType = clonedObj.GetComponent<BaseGameObjInfo>().gameObjType;
            clonesync.UserID = clonedObj.GetComponent<BaseGameObjInfo>().UserID;
            clonesync.buildNum = hitObjInfo.buildNum;
            clonesync.floorNum = hitObjInfo.floorNum;
            clonesync.interlayerNum = hitObjInfo.interlayerNum;
            clonesync.SendUserID = CurrentUserInfo.mySelf.Id;

            clonesync.ClonePosition = clonedObjPos;
            clonesync.name = clonedObj.name;
            clonesync.HitObjID = hitObjInfo.gameObjID;

            NetworkManager.Default.SendAsync("CLONE_SAFEAREA_SYNC", clonesync);

        }
    }
    
    /// <summary>
    /// 检查当前克隆位置能否克隆安全区（或者当前位置能否停放安全区）
    /// </summary>
    /// <param name="hitPoint"></param>
    public bool CheckCloneAble(Vector3 hitPoint)
    {
        vLU = Camera.main.WorldToScreenPoint(hitPoint + Vector3.left * AreaPrefabSize / 2 + Vector3.forward * AreaPrefabSize / 2);
        vLD = Camera.main.WorldToScreenPoint(hitPoint + Vector3.left * AreaPrefabSize / 2 + Vector3.back * AreaPrefabSize / 2);
        vRU = Camera.main.WorldToScreenPoint(hitPoint + Vector3.right * AreaPrefabSize / 2 + Vector3.forward * AreaPrefabSize / 2);
        vRD = Camera.main.WorldToScreenPoint(hitPoint + Vector3.right * AreaPrefabSize / 2 + Vector3.back * AreaPrefabSize / 2);

        rayLU = Camera.main.ScreenPointToRay(vLU);
        rayLD = Camera.main.ScreenPointToRay(vLD);
        rayRU = Camera.main.ScreenPointToRay(vRU);
        rayRD = Camera.main.ScreenPointToRay(vRD);
        
        if (Physics.Raycast(rayLU, out HitLU))
        {
            if (NavMesh.SamplePosition(HitLU.point, out nhit, 0.5f, filter))
            {
                if (Vector3.Distance(HitLU.point, nhit.position) > 0.2f)
                {
                    LoadPromptWin.Instance.LoadTextPromptWindow("当前位置无法设置安全区！", 1f);
                    cloneAble = false;
                    return cloneAble;
                }
            }
            else
            {
                LoadPromptWin.Instance.LoadTextPromptWindow("当前位置无法设置安全区！", 1f);
                cloneAble = false;
                return cloneAble;
            }
        }
        
        if (Physics.Raycast(rayLD, out HitLD))
        {
            if (NavMesh.SamplePosition(HitLD.point, out nhit, 0.5f, filter))
            {
                if (Vector3.Distance(HitLD.point, nhit.position) > 0.2f)
                {
                    LoadPromptWin.Instance.LoadTextPromptWindow("当前位置无法设置安全区！", 1f);
                    cloneAble = false;
                    return cloneAble;
                }
            }
            else
            {
                LoadPromptWin.Instance.LoadTextPromptWindow("当前位置无法设置安全区！", 1f);
                cloneAble = false;
                return cloneAble;
            }
        }

        if (Physics.Raycast(rayRU, out HitRU))
        {
            if (NavMesh.SamplePosition(HitRU.point, out nhit, 0.5f, filter))
            {
                if (Vector3.Distance(HitRU.point, nhit.position) > 0.2f)
                {
                    LoadPromptWin.Instance.LoadTextPromptWindow("当前位置无法设置安全区！", 1f);
                    cloneAble = false;
                    return cloneAble;
                }
            }
            else
            {
                LoadPromptWin.Instance.LoadTextPromptWindow("当前位置无法设置安全区！", 1f);
                cloneAble = false;
                return cloneAble;
            }
        }

        if (Physics.Raycast(rayRD, out HitRD))
        {
            if (NavMesh.SamplePosition(HitRD.point, out nhit, 0.5f, filter))
            {
                if (Vector3.Distance(HitRD.point, nhit.position) > 0.2f)
                {
                    LoadPromptWin.Instance.LoadTextPromptWindow("当前位置无法设置安全区！", 1f);
                    cloneAble = false;
                    return cloneAble;
                }
            }
            else
            {
                LoadPromptWin.Instance.LoadTextPromptWindow("当前位置无法设置安全区！", 1f);
                cloneAble = false;
                return cloneAble;
            }
        }

        return cloneAble = true;
    }
}