using GCGame.Table;
using System.Collections.Generic;
using Games.LogicObj;
using UnityEngine;
using Games.Scene;

public class AutoSearchTelePort
{
    public class Node
    {
        public Node _Parent;
        public int _sceneID;
        public Node(int sceneID,Node Parent)
        {
            _sceneID = sceneID;
            _Parent = Parent;
        }
    }

    List<int> sweapeds = new List<int>();
    List<int> TelePaths = new List<int>();

    private int m_destentSceneID = -1;
    private int m_destentInsID = -1;
    private float m_destentPosX = -1;
    private float m_destentPosZ = -1;
    
    public void SetMapConnectPath(int desSceneID, float PosX, float PosZ, int insID = -1)
    {
        TelePaths.Clear();
        sweapeds.Clear();

        m_destentSceneID = desSceneID;
        m_destentInsID = insID; //分线ID
        m_destentPosX = PosX;
        m_destentPosZ = PosZ;
        CreateNode(GameManager.gameManager.RunningScene, null);
    }

    private bool CreateNode(int sceneID,Node Parent)
    {
        if(sceneID == m_destentSceneID)
        {
            while(Parent!=null)
            {
                TelePaths.Insert(0,Parent._sceneID);
                Parent = Parent._Parent;
            }
            TelePaths.Add(m_destentSceneID);
            ChangeSceneOver();
            return true;
        }
        if (sweapeds.Contains(sceneID))  //环路的处理
            return false;
        sweapeds.Add(sceneID);
        Node root = new Node(sceneID, Parent);
        var teles = TableManager.GetTeleport().Values;
        foreach (var tele in teles)
        {
            if(tele.SrcSceneID == sceneID)
            {
                if (CreateNode(tele.DstSceneID, root))
                    return true;
            }
        }
        return false;
    }

    public void Stop()
    {
        TelePaths.Clear();
    }

    public void ChangeSceneOver()
    {
        if (TelePaths == null || TelePaths.Count <= 0)
            return;
        if (TelePaths.Contains(GameManager.gameManager.RunningScene))
            TelePaths.RemoveAt(0);
        int nextScene = TelePaths.Count>0?TelePaths[0]: GameManager.gameManager.RunningScene;
        if(Singleton<ObjManager>.Instance.MainPlayer==null)
        {
            Stop();
            return;
        }

        //到达目标场景
        if(GameManager.gameManager.RunningScene == m_destentSceneID)
        {
            //切一下分线
            if(m_destentInsID != -1 && SceneData.SceneInst != m_destentInsID)
            {
                var packet =
                    (CG_SCENE_CHANGEINST)PacketDistributed.CreatePacket(MessageID.PACKET_CG_SCENE_CHANGEINST);
                packet.SetSceneInst(m_destentInsID);
                packet.SendPacket();
                return;
            }
            else
            {
                var pos = new Vector3(m_destentPosX, 0, m_destentPosZ);
                pos = ActiveScene.GetTerrainPosition(pos);
                Singleton<ObjManager>.Instance.MainPlayer.MainPlayMoveToPos(pos, 1.5f, bIsAutoSearch: true);
                Stop();
                return;
            }
        }

        var teles = TableManager.GetTeleport().Values;
        foreach (var tele in teles)
        {
            if(tele.SrcSceneID == GameManager.gameManager.RunningScene && tele.DstSceneID == nextScene)
            {
                var pos = new Vector3(tele.SrcPosX, 0, tele.SrcPosZ);
                pos = ActiveScene.GetTerrainPosition(pos);
                Singleton<ObjManager>.Instance.MainPlayer.MainPlayMoveToPos(pos, 1.5f, bIsAutoSearch: true);
                return;
            }
        }
        Stop();
    }
}