using HxGame;
using HxGame.Data;
using System;
using System.Collections;
using System.Collections.Generic;
using System.IO;
using System.Text;
using System.Xml;
using UnityEngine;
using UnityEngine.EventSystems;
using UnityEngine.Networking;
using UnityEngine.UI;
using UnityEngine.UIElements;

public partial class MapManager : MonoBehaviour
{
    //地图宽高缩放
    public const int CELLSCALE = 100;
    //格子宽像素
    public const int widthPixel = 64;
    //格子高像素
    public const int heightPixel = 32;
    //单张地图像素
    public int PicMapPixel => int.Parse(mapPic.text);

    public delegate void LoadFinishedCallback();
    public LoadFinishedCallback onLoadFinishedCallback;
    //public delegate void CloseMapCallback();
    //public CloseMapCallback onCloseMapCallback;

    public InputField mapPic;

    private static MapManager _mapManager = null;
    public static MapManager Instance
    {
        get
        {
            if (_mapManager == null)
                _mapManager = FindObjectOfType<MapManager>();

            return _mapManager;
        }
    }

    [HideInInspector]
    public int mapWidth = 0;
    [HideInInspector]
    public int mapHeight = 0;

    private int _maxWidth;    //记录最大宽度索引
    private int _maxHeight;   //记录最大高度索引
    private int _cellWidth;
    private int _cellHeight;
    private int _cellRows;
    private int _cellCols;
    //public CellNode[,] cellNodes;

    public int _curOpenMapId;

    private Material _cellMoveMat;
    private Material _cellObsMat;
    private Material _cellHideMat;
    private Material _cellDefaultMat;
    private Material _cellReturnMat;  //回城点
    private Material _cellReliveMat;  //复活点
    private Material _cellTeleportMat;  //传送点
    private Material _cellNpcMat;       //npc位置
    private Material _cellPathNodeMat;  //pathNode
    private Material _cellTriggerMat;  //trigger

    private bool _StartEditor;
    private float _brushRadius;
    private CellType _brushCellType;

    public int CellRows { get { return _cellRows; } }
    public int CellCols { get { return _cellCols; } }

    public int CellWidth { get { return _cellWidth; } }
    public int CellHeight { get { return _cellHeight; } }

    public int MaxWidth { get { return _maxWidth; } }
    public int MaxHeight { get { return _maxHeight; } }

    private GameObject _curPathObj = null;

    private void Start()
    {
        _cellMoveMat = Resources.Load<Material>("Materials/cellMoveMat");
        _cellObsMat = Resources.Load<Material>("Materials/cellObsMat");
        _cellHideMat = Resources.Load<Material>("Materials/cellHideMat");
        _cellDefaultMat = Resources.Load<Material>("Materials/cellDefaultMat");

        _cellReturnMat = Resources.Load<Material>("Materials/cellReturnMat");
        _cellReliveMat = Resources.Load<Material>("Materials/cellReliveMat");
        _cellTriggerMat = Resources.Load<Material>("Materials/cellTriggerMat");
        _cellTeleportMat = Resources.Load<Material>("Materials/cellTeleportMat");
        _cellNpcMat = Resources.Load<Material>("Materials/cellNpcMat");
        _cellPathNodeMat = Resources.Load<Material>("Materials/cellPathNodeMat");
        Cleanup();
    }

    private void OnCreatedMap(int mapId, int mapWidth, int mapHeight)
    {
        this.mapWidth = mapWidth;
        this.mapHeight = mapHeight;
        _curOpenMapId = mapId;
    }

    public void StartEditor()
    {
        if (_curOpenMapId < 0)
        {
            UIWindow.Instance.ShowMessage("请先打开地图");
            return;
        }

        _StartEditor = true;
    }

    public void CloseEditor()
    {
        _StartEditor = false;
    }

    public void SetBrush(float radius, CellType type)
    {
        _brushRadius = radius;
        _brushCellType = type;
    }

    List<MapConfig.AreaConfig> tempSafeAreasConfig = new List<MapConfig.AreaConfig>();

    public void CloseMap()
    {
        if (_curOpenMapId <= 0)
            return;
        //清理所有场景的东西
        foreach (Transform child in mapMonsterArea)
        {
            Destroy(child.gameObject);
        }
        foreach (Transform child in mapNPCArea)
        {
            Destroy(child.gameObject);
        }
        foreach (Transform child in mapTeleportArea)
        {
            Destroy(child.gameObject);
        }
        foreach (Transform child in mapReliveArea)
        {
            Destroy(child.gameObject);
        }
        UIWindow.Instance.uiCellInfo.CloseMap();
        ClearMapRegions();
        Cleanup();
    }

    private void Cleanup()
    {
        mapWidth = 0;
        mapHeight = 0;
        _maxWidth = 0;
        _maxHeight = 0;
        _cellWidth = -1;
        _cellHeight = -1;
        _cellRows = -1;
        _cellCols = -1;
        _curOpenMapId = -1;

        _StartEditor = false;
        _brushRadius = 0;
        _brushCellType = CellType.None;
        UIWindow.Instance.uiEditMapConfig.Cleanup();

    }


    private void Update()
    {
        bool bHoverUI = EventSystem.current != null && EventSystem.current.IsPointerOverGameObject();
        if (bHoverUI)
            return;
        UpdateCamera();
        UpdateCellPos();
    }


    public void LoadSprite(string spName, GameObject go, int regionWidth=0, int regionHeight=0)
    {
        StartCoroutine(LoadSpriteCor(spName, go, regionWidth, regionHeight));
    }

    IEnumerator LoadSpriteCor(string spName, GameObject go, int regionWidth, int regionHeight)
    {
        string spPath = PathUtil.GetTexture(_curOpenMapId, spName, "jpg");

        using (UnityWebRequest req = UnityWebRequestTexture.GetTexture(spPath))
        {
            yield return req.SendWebRequest();
            if (req.result == UnityWebRequest.Result.ConnectionError)
            {
                UIWindow.Instance.ShowMessage(req.error);
            }
            else
            {
                Texture2D tt = DownloadHandlerTexture.GetContent(req);
                if (tt == null)
                    yield break;

                //根据获取的Texture建立一个sprite
                //Sprite sprite = Sprite.Create((Texture2D)tt, new Rect(0, 0, tt.width, tt.height), new Vector2(0, 0));
                //sprite.name = spName;
                //go.GetComponent<Image>().sprite = sprite;
                tt.name = spName;
                go.GetComponent<RawImage>().texture = tt;
                go.GetComponent<RectTransform>().sizeDelta = new Vector2(regionWidth, regionHeight);
            }
        }
    }
}