using TGS;
using Gameplay;
using System.Linq;
using UnityEngine;
using File = System.IO.File;
using PhxhSDK;

#if UNITY_EDITOR
using UnityEditor;
using UnityEngine.SceneManagement;

[ExecuteAlways]
#endif

public class MapManager : MonoBehaviour
{
    private TerrainGridSystem _tgs;

    [SerializeField] [HideInInspector] private TextAsset _mapDataJson;

    private MapData _mapData;

    private Map _map;

    private CameraController _cameraController;

    /// <summary>
    /// 军团地图
    /// </summary>
    [HideInInspector] public bool isLegionMap;

    public TerrainGridSystem TGS
    {
        get
        {
            if (_tgs is null)
            {
                var allTgs = FindObjectsOfType<TerrainGridSystem>();
                _tgs = allTgs.FirstOrDefault(t => t.gameObject.scene == gameObject.scene);
            }

            return _tgs;
        }
    }

    public TextAsset MapDataJson
    {
        get => _mapDataJson;
        set
        {
            if (_mapDataJson != value)
            {
                var data = JsonToMapData(value);
                _mapDataJson = value;
                if (data != null)
                {
                    Refresh();
                }
                else
                {
                    _tgs.TerritoryDestroyAll();
                }
            }
        }
    }

    public MapData MapData
    {
        get
        {
            if (_mapData == null)
            {
                var data = JsonToMapData(MapDataJson);
                if (data != null)
                {
                    _mapData = data;
                    TGS.columnCount = _mapData.Width;
                    TGS.rowCount = _mapData.Height;
                }
            }

            return _mapData;
        }
    }

    public Map Map
    {
        get
        {
            if (_map == null && MapData != null)
            {
                _map = MapUtils.LoadMap(TGS, MapData, isLegionMap);
                if (_map != null && CameraController)
                    MapUtils.BindCameraController(CameraController.GetComponent<Camera>(), _map);
            }

            return _map;
        }
    }

    public CameraController CameraController
    {
        get
        {
            if (_cameraController is null)
            {
                var cameras = FindObjectsOfType<Camera>();
                foreach (var cam in cameras)
                {
                    if (cam.gameObject.scene == gameObject.scene)
                    {
                        var cameraController = cam.GetComponent<CameraController>();
                        if (cameraController)
                        {
                            _cameraController = cameraController;
                            break;
                        }
                    }
                }
            }

            return _cameraController;
        }
    }

    public void Refresh()
    {
        _mapData = null;
        _map = null;
        if (_mapDataJson is null)
            return;
        TGS.showCells = true;
#if UNITY_EDITOR
        var currentScene = SceneManager.GetActiveScene();
        isLegionMap = !string.IsNullOrEmpty(currentScene.name) && currentScene.name.Contains("Legion");
        DebugUtil.Log($"当前地图为军团地图：{isLegionMap}");
#endif
    }

    private MapData JsonToMapData(TextAsset jsonText)
    {
        if (jsonText is not null)
        {
            var jsonStr = jsonText.text;
            if (string.IsNullOrEmpty(jsonStr))
            {
                var mapData = new MapData();
                //mapData.ResetBlocks();
                return mapData;
            }
            else
            {
                //newtowsoft的Json序列化JsonIgnore不起作用，先用Unity的
                //return JsonConvert.DeserializeObject<MapData>(jsonStr);
                return JsonUtility.FromJson<MapData>(jsonStr);
            }
        }

        return null;
    }

    /*// 保存需要指示的地格索引  25.4.2 改为进游戏动态读取地格属性
    public void SaveBuffObjCellIndex(Dictionary<int, string> cells)
    {
        if (cells is { Count: > 0 })
        {
            foreach (var cellData in cells)
            {
                var showBuffData = new MapData.ShowBuffData
                {
                    cellIndex = cellData.Key,
                    path = cellData.Value
                };
                Map.MapData.showBuffPoints.Add(showBuffData);
            }
        }
    }*/

    public void SaveMapData()
    {
        if (Application.isPlaying)
            return;
        
#if UNITY_EDITOR
        var currentScene = gameObject.scene;
        if (currentScene.name.Contains("_PostProcess"))        
        {
            DebugUtil.LogError("当前在后处理场景，当前数据不会保存，请在原场景处理Map数据");
            return;
        }

        if (_mapDataJson is not null && _mapData != null && currentScene == SceneManager.GetActiveScene())
        {
            var path = AssetDatabase.GetAssetPath(_mapDataJson);
            //newtowsoft的Json序列化JsonIgnore不起作用，先用Unity的
            //JsonHelper.SaveJson(path, _mapData);
            var jsonStr = JsonUtility.ToJson(_mapData, true);
            File.WriteAllText(path, jsonStr);
            // SaveArtRoot(currentScene);
            AssetDatabase.Refresh();
        }
#endif
    }


    private string GetUniquePrefabPath(string sceneName, int suffix = 0)
    {
        var fileName = suffix == 0 ? $"Art_{sceneName}" : $"Art_{sceneName}_{suffix}";
        var savePath = $"Assets/Scenes/Maps/LevelArt/{fileName}.prefab";

        if (File.Exists(savePath))
        {
            DebugUtil.Log($"预制体 {fileName}.prefab 已存在，将使用新名称");
            return GetUniquePrefabPath(sceneName, suffix + 1);
        }

        return savePath;
    }

    private void OnEnable()
    {
        if (BusyWrapper.isBusy)
            return;
        if (!Application.isPlaying)
        {
            Refresh();
            if (isLegionMap)
                UpdateLegionBlockInEditor();
            else
                UpdateBlockInEditor();
        }
    }

    private void OnDestroy()
    {
        if (BusyWrapper.isBusy)
            return;
        if (!Application.isPlaying)
            SaveMapData();
    }

    /// <summary>
    /// 地编使用
    /// </summary>
    private void UpdateBlockInEditor()
    {
        if (MapData == null || Map == null || TGS == null) return;
        TGS.colorizeTerritories = false;
        TGS.showCells = true;
        var terrainTypeConfig = TerrainTypeConfig.DicTerrainTypePropertie;
        if (terrainTypeConfig.Count <= 0)
        {
            DebugUtil.LogError("请重启，无法正确读取地格类型");
            return;
        }

        MapData.showBuffPoints.Clear();
        for (var i = 0; i < MapData.BlocksData.Count; i++)
        {
            var blockData = MapData.BlocksData[i];
            if (!blockData.IsDefaultTerrainType())
            {
                var prop = terrainTypeConfig[blockData.TerrainTypeIndex];
                TGS.CellToggleRegionSurface(i, true, prop.Color);
                if (!string.IsNullOrEmpty(prop.buffObjectPath))
                {
                    MapData.showBuffPoints.Add(new MapData.ShowBuffData
                    {
                        cellIndex = i,
                        path = prop.buffObjectPath,
                    });
                }
            }
        }
    }

    /// <summary>
    /// 地编使用
    /// </summary>
    private void UpdateLegionBlockInEditor()
    {
        if (MapData == null || Map == null || TGS == null) return;
        TGS.colorizeTerritories = false;
        TGS.showCells = true;
        var terrainTypeConfig = LegionTerrainTypeConfig.DicTerrainTypePropertie;
        if (terrainTypeConfig.Count <= 0)
        {
            DebugUtil.LogError("请重启，无法正确读取军团地格类型");
            return;
        }

        MapData.showBuffPoints.Clear();
        for (var i = 0; i < MapData.BlocksData.Count; i++)
        {
            var blockData = MapData.BlocksData[i];
            if (!blockData.IsDefaultLegionTerrainType())
            {
                var prop = terrainTypeConfig[blockData.LegionTypeIndex];
                TGS.CellToggleRegionSurface(i, true, prop.Color);
                if (!string.IsNullOrEmpty(prop.buffObjectPath))
                {
                    MapData.showBuffPoints.Add(new MapData.ShowBuffData
                    {
                        cellIndex = i,
                        path = prop.buffObjectPath,
                    });
                }
            }
        }
    }

    #region 保存预制体功能

#if UNITY_EDITOR
    private void SaveArtRoot(Scene currentScene)
    {
        var artRoot = GameObject.Find("Art");
        if (artRoot == null)
        {
            var postProcess = FindObjectsOfType<PostProcessInstructor>();
            if (postProcess.Length > 0)
            {
                artRoot = postProcess[0].combinedObjectsRoot.gameObject;
            }
        }

        if (artRoot == null || IsPrefabOrVariant(artRoot))
            return;

        var savePath = GetUniquePrefabPath(currentScene.name);

        PrefabUtility.SaveAsPrefabAssetAndConnect(artRoot, savePath, InteractionMode.UserAction);

        DebugUtil.Log($"保存地图数据成功！保存Art预制体{savePath}");
    }

    private bool IsPrefabOrVariant(GameObject obj)
    {
        if (PrefabUtility.IsPartOfPrefabAsset(obj))
            return true;

        if (PrefabUtility.GetPrefabInstanceStatus(obj) != PrefabInstanceStatus.NotAPrefab)
            return true;

        return false;
    }
#endif

    #endregion
}