using AX.Network.Protocols;
using AX.Serialization;
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.AI;
using System;

public class PATHFIND_SYNC : NetworkMessageBehaviour
{
    public List<Vector3> corners = new List<Vector3>();
    private NavMeshQueryFilter filter;
    private Vector3 lastPosition;
    private NavMeshAgent agent;
    void Start()
    {
        
    }
    protected override void Execute(BinaryMessage message)
    {
        InputHistory.Instance.RegisterInputHistory(message);

        //var sender = message.ID;
        var info = message.Body.Deserialize<PathFindSyncData>();
        if (InputManager.Instance)
        {
            if (CurrentUserInfo.mySelf.Id != info.SendUserID)
            {
                BaseGameObjInfo i = GetComponent<BaseGameObjInfo>();
                if (info.gameObjID==GetComponent<BaseGameObjInfo>().gameObjID)
                {
                    pathfind(info);
                    if (GetComponent<TrappedMoveFree>())
                    {
                        GetComponent<TrappedMoveFree>().targetPosition = info.trappedTargetpoint;
                        GetComponent<TrappedMoveFree>().MeetDangerous = info.TrappedMeetDangerous;
                    }
                }
            }
        }
        //else
        //{
        //    NetworkSyncHelper.AddSyncData(info);
        //}
    }


    private void pathfind(PathFindSyncData data)
    {
       // GameObject pathfindobj = EntitiesManager.Instance.GetEntityByID(data.gameObjID);
        agent =GetComponent<NavMeshAgent>();
        filter = new NavMeshQueryFilter();
        filter.agentTypeID = agent.agentTypeID;
        filter.areaMask = agent.areaMask;
        if (GetComponent<BaseGameObjInfo>().gameObjID == data.gameObjID)
        {
            //挂在所有寻路物体上？
            StopAllCoroutines();

            corners.Clear();
            bool flag = setPathCorners(transform.position, data.TargetPoint, corners);
            if (flag)
            {
                //setFloorMessage(hitObj.transform);
                removeNoMainCorners(corners);
                StartCoroutine(GoToDestination());
            }
        }
    }
    bool setPathCorners(Vector3 sourcePosition, Vector3 targetPosition, List<Vector3> corners)
    {
        NavMeshPath NavMeshPath = new NavMeshPath();
        NavMesh.CalculatePath(sourcePosition, targetPosition, filter, NavMeshPath);
        Vector3[] b = NavMeshPath.corners;
        if (b.Length == 1)
        {
            //Debug.Log("断裂");         
            return false;
        }
        if (NavMeshPath.status == NavMeshPathStatus.PathComplete)
        {
            //Debug.Log("PathComplete");
            foreach (Vector3 corner in b)
            {
                if (!corners.Contains(corner))
                {
                    corners.Add(corner);
                }
            }
            return true;
        }
        else if (NavMeshPath.status == NavMeshPathStatus.PathPartial)
        {
            if (Vector3.Distance(b[b.Length - 1], lastPosition) == 0)
            {
                //Debug.Log("(" + sourcePosition.x + "," + sourcePosition.y + "," + sourcePosition.z + ")、（" + lastPosition.x + "," + lastPosition.y + "," + lastPosition.z + ")");
                //Debug.Log("进入死循环");

                return false;
            }
            foreach (Vector3 corner in b)
            {
                if (!corners.Contains(corner))
                {
                    corners.Add(corner);
                }
            }
            lastPosition = sourcePosition;
            return setPathCorners(b[b.Length - 1], targetPosition, corners);
        }
        else if (NavMeshPath.status == NavMeshPathStatus.PathInvalid)
        {
            return false;
        }
        else
        {
            return false;
        }
    }
    void removeNoMainCorners(List<Vector3> corners)
    {
        for (int i = 0; i < corners.Count - 1; i++)
        {
            for (int k = corners.Count - 2; k > i; k--)
            {
                float distance = Vector3.Distance(corners[i], corners[k]);//计算两点的距离
                if (distance < 5)
                {
                    for (int j = k; j > i; j--)
                    {
                        corners.RemoveAt(j);
                    }
                    break;
                }
            }
        }
    }
    IEnumerator GoToDestination()
    {
        int i = 1;
        while (i < corners.Count)
        {
            NavMeshPath NavMeshPath = new NavMeshPath();
            NavMesh.CalculatePath(transform.position, corners[i], filter, NavMeshPath);
            agent.SetDestination(corners[i]);
            while (agent.pathPending)
                yield return null;

            //wait until we reached this position
            float remain = Vector3.Distance(transform.position, corners[i]);
            while (remain == Mathf.Infinity || remain - agent.stoppingDistance > float.Epsilon)
            {
                remain = Vector3.Distance(transform.position, corners[i]);
                yield return null;
            }
            var objinfo = GetComponent<BaseGameObjInfo>();
            if (objinfo.gameObjType == CloneObjType.fireman || objinfo.gameObjType == CloneObjType.ObligationFireman)
            {
                //setFloorMessage();
            }
            i++;
        }
    }
}