using System.IO;
using cfg.FightCfg;
using Gameplay;
using MapEditor;
using Sirenix.OdinInspector.Editor;
using TGS;
using UnityEditor;
using UnityEditor.SceneManagement;
using UnityEngine;
using UnityEngine.Rendering.Universal;
using UnityEngine.SceneManagement;
using Constants = Framework.Constants;
using Object = UnityEngine.Object;

[CustomEditor(typeof(MapManager))]
public class MapManagerInspector : OdinEditor
{
    private enum ECameraCheckCorner
    {
        None,
        LeftDown,
        RightDown,
        LeftUp,
        RightUp,
    }

    private readonly string[] checkCornerType = new[]
    {
        "无",
        "左下角",
        "右下角",
        "左上角",
        "右上角",
    };

    private readonly string[] environmentType = new[]
    {
        "平原",
        "山地",
        "草原",
        "林地",
        "雪地",
        "泥地",
        "戈壁",
        "沙漠",
        "高原",
        "竞技场",
        "火车关",
    };

    private MapManager Target => target as MapManager;

    private TerrainGridSystem TGS => Target.TGS;

    private MapData MapData => Target.MapData;

    private Map Map => Target.Map;

    private bool _isEditingGrid;
    private bool _isEditingCameraOriginPos;
    private bool _isCheckingCamera;
    private bool _isEditingCameraInfo;

    private ECameraCheckCorner _checkType;

    private const string LegionMapConfigPrefix = "LegionMapData_";
    private const string MapConfigPrefix = "MapData_";
    private const string UICanvasCheck = "Assets/Editor/MapEditor/LevelUICheck.prefab";
    private GameObject _uiLevelCheck;

    //scene gui
    private bool _isHitGround;
    private Vector3 _mouseHitPosition;
    private Event _currEvent;
    private GameObject _ground;
    private RaycastHit[] _hits = new RaycastHit[1];

    protected override void OnEnable()
    {
        base.OnEnable();
        var allTgs = Object.FindObjectsOfType<TerrainGridSystem>();
        foreach (var tgs in allTgs)
        {
            if (tgs != TGS)
            {
                foreach (Transform child in tgs.transform)
                {
                    child.gameObject.SetActive(false);
                }
            }
        }

        DeActiveScene();
        ApplyInitialCameraPosition();
    }

    private void DeActiveScene()
    {
        var sceneManagers = FindObjectsOfType<NLDSceneManager>();
        foreach (var sceneManager in sceneManagers)
        {
            SceneVisibilityManager.instance.DisablePicking(sceneManager.Art.gameObject, true);
        }
    }

    protected override void OnDisable()
    {
        if (_uiLevelCheck)
            DestroyImmediate(_uiLevelCheck);
        if (GameObject.Find("LevelUICheck(Clone)"))
            DestroyImmediate(GameObject.Find("LevelUICheck(Clone)"));
        base.OnDisable();
        Target.SaveMapData();
    }

    /// <summary>
    /// 加载地图后应用存储的相机初始位置与FOV
    /// </summary>
    private void ApplyInitialCameraPosition()
    {
        if (Application.isPlaying)
            return;

        if (Target == null || Target.CameraController == null || Map == null || TGS == null)
            return;

        var camera = Target.CameraController;
        camera.CameraBounds = TGS.bounds;
        var initPos = Map.BlockPosition2WorldPosition(MapData.initialCameraPosition);
        camera.InitializeCameraPosition(
            initPos,
            MapData.cameraMarginInfo,
            camera.rightMargin,
            camera.leftMargin,
            camera.topMargin,
            camera.bottomMargin);
    }

    public override void OnInspectorGUI()
    {
        if (Application.isPlaying)
            return;
        base.OnInspectorGUI();
        DrawCreateMapData();
        DrawMapData();
        EditorSceneManager.MarkSceneDirty(Target.gameObject.scene);
    }

    private void DrawCreateMapData()
    {
        if (GUILayout.Button("创建地图配置"))
        {
            var mapDataDir = Path.GetDirectoryName(Constants.MAP_CONFIG_FORMAT_PATH);

            var mapDataName = Target.isLegionMap
                ? $"{mapDataDir}/{LegionMapConfigPrefix + Target.gameObject.scene.name}.json"
                : $"{mapDataDir}/{MapConfigPrefix + Target.gameObject.scene.name}.json";
            var dataPath = EditorUtil.GetAssetUniquePath(mapDataName, out var textName);
            using (var fileStream = File.Create(dataPath))
            {
            }

            AssetDatabase.Refresh();
            var textAsset = AssetDatabase.LoadAssetAtPath<TextAsset>(dataPath);
            EditorGUIUtility.PingObject(textAsset);
            Target.MapDataJson = textAsset;
        }
    }

    private void DrawMapData()
    {
        var mapAsset = Target.MapDataJson;
        EditorGUI.BeginChangeCheck();
        mapAsset = EditorGUILayout.ObjectField("地图配置", mapAsset, typeof(TextAsset), false) as TextAsset;
        if (EditorGUI.EndChangeCheck())
        {
            Target.MapDataJson = mapAsset;
            ApplyInitialCameraPosition();
        }

        if (Target.MapDataJson != null)
        {
            EditorGUI.BeginChangeCheck();
            var column = EditorGUILayout.DelayedIntField("网格宽度", TGS.columnCount);
            var raw = EditorGUILayout.DelayedIntField("网格高度", TGS.rowCount);
            if (EditorGUI.EndChangeCheck())
            {
                var width = column;
                var height = raw;
                MapData.Width = width;
                MapData.Height = height;
                TGS.columnCount = width;
                TGS.rowCount = height;
                Target.SaveMapData();
                Target.Refresh();
            }

            EditorGUI.BeginChangeCheck();
            var gridOffset = EditorGUILayout.Vector2Field("网格偏移",
                new Vector2(TGS.transform.position.x, TGS.transform.position.z));
            if (EditorGUI.EndChangeCheck())
            {
                var transform = TGS.transform;
                transform.position = new Vector3(gridOffset.x, 0, gridOffset.y);
                MapData.position = transform.position;
            }

            MapData.environmentType =
                (ELevelTerrainType)EditorGUILayout.Popup("环境类型", (int)MapData.environmentType, environmentType);

            DrawCheckCamera();
            DrawCameraOriginPosition();

            if (GUILayout.Button("打开网格编辑器"))
            {
                MapGridWindow.OpenWindow(Target, Target.isLegionMap);
            }

            // DrawCameraInfo();
            if (GUILayout.Button("保存"))
            {
                Target.SaveMapData();
            }
        }
    }

    /*private void DrawCameraInfo()
    {
        _isEditingCameraInfo = EditorGUILayout.Toggle("编辑相机间距", _isEditingCameraInfo);
        if (_isEditingCameraInfo)
        {
            MapData.cameraMarginInfo.leftMarginInFight =
                EditorGUILayout.FloatField("战斗中相机左间距", MapData.cameraMarginInfo.leftMarginInFight);
            MapData.cameraMarginInfo.rightMarginInFight =
                EditorGUILayout.FloatField("战斗中相机右间距", MapData.cameraMarginInfo.rightMarginInFight);
            MapData.cameraMarginInfo.topMarginInFight =
                EditorGUILayout.FloatField("战斗中相机上间距", MapData.cameraMarginInfo.topMarginInFight);
            MapData.cameraMarginInfo.bottomMarginInFight =
                EditorGUILayout.FloatField("战斗中相机下间距", MapData.cameraMarginInfo.bottomMarginInFight);

            MapData.cameraMarginInfo.leftMarginInPre =
                EditorGUILayout.FloatField("准备前相机左间距", MapData.cameraMarginInfo.leftMarginInPre);
            MapData.cameraMarginInfo.rightMarginInPre =
                EditorGUILayout.FloatField("准备前相机右间距", MapData.cameraMarginInfo.rightMarginInPre);
            MapData.cameraMarginInfo.topMarginInInPre =
                EditorGUILayout.FloatField("准备前相机上间距", MapData.cameraMarginInfo.topMarginInInPre);
            MapData.cameraMarginInfo.bottomMarginInPre =
                EditorGUILayout.FloatField("准备前相机下间距", MapData.cameraMarginInfo.bottomMarginInPre);
        }
    }*/

    private void DrawCheckCamera()
    {
        if (!_isCheckingCamera && GUILayout.Button("检查相机可否超出地图"))
        {
            _isCheckingCamera = true;
            Target.CameraController.GetComponent<Camera>().orthographicSize = Target.CameraController.CameraMaxSize;
            if (_uiLevelCheck == null)
            {
                var ui = AssetDatabase.LoadAssetAtPath<GameObject>(UICanvasCheck);
                _uiLevelCheck = Instantiate(ui);
                var uiCamera = _uiLevelCheck.transform.Find("UICamera").GetComponent<Camera>();
                var baseCameraData = Camera.main?.GetComponent<UniversalAdditionalCameraData>();
                baseCameraData?.cameraStack.Add(uiCamera);
            }
        }

        if (_isCheckingCamera && GUILayout.Button("退出相机检查"))
        {
            if (_uiLevelCheck)
                DestroyImmediate(_uiLevelCheck);
            _isCheckingCamera = false;
            Target.CameraController.GetComponent<Camera>().orthographicSize = Target.CameraController.CameraMinSize;
        }

        if (_isCheckingCamera)
        {
            EditorGUI.BeginChangeCheck();
            _checkType = (ECameraCheckCorner)EditorGUILayout.Popup("检查角落", (int)_checkType, checkCornerType);
            if (EditorGUI.EndChangeCheck())
            {
                switch (_checkType)
                {
                    case ECameraCheckCorner.None:
                        break;
                    case ECameraCheckCorner.LeftDown:
                        var leftDownPoint = new Vector2Int(0, 0);
                        Target.CameraController.InitializeCameraPosition(
                            Map.BlockPosition2WorldPosition(leftDownPoint));
                        break;
                    case ECameraCheckCorner.RightDown:
                        var rightDownPoint = new Vector2Int(0, TGS.columnCount - 1);
                        Target.CameraController.InitializeCameraPosition(
                            Map.BlockPosition2WorldPosition(rightDownPoint));
                        break;
                    case ECameraCheckCorner.LeftUp:
                        var leftUpPoint = new Vector2Int(TGS.rowCount - 1, 0);
                        Target.CameraController.InitializeCameraPosition(Map.BlockPosition2WorldPosition(leftUpPoint));
                        break;
                    case ECameraCheckCorner.RightUp:
                        var rightUpPoint = new Vector2Int(TGS.rowCount - 1, TGS.columnCount - 1);
                        Target.CameraController.InitializeCameraPosition(Map.BlockPosition2WorldPosition(rightUpPoint));
                        break;
                    default:
                        break;
                }
            }
        }
    }

    private void DrawCameraOriginPosition()
    {
        if (!_isEditingCameraOriginPos)
        {
            if (GUILayout.Button("编辑相机初始位置和大小"))
            {
                _isEditingCameraOriginPos = true;
                // 编辑模式下提前设置相机包围盒，避免 CameraBounds 为空导致红框不显示/不更新
                if (Target?.CameraController != null && Target?.TGS != null)
                {
                    Target.CameraController.CameraBounds = Target.TGS.bounds;
                }
            }
        }
        else
        {
            // 添加相机FOV和正交大小设置
            EditorGUI.BeginChangeCheck();
            MapData.cameraMarginInfo.initialFOV = EditorGUILayout.Slider("初始FOV", MapData.cameraMarginInfo.initialFOV,
                Target.CameraController.CameraMinFOV, Target.CameraController.CameraMaxFOV);
            // MapData.cameraMarginInfo.initialOrthographicSize = EditorGUILayout.Slider("初始正交大小", MapData.cameraMarginInfo.initialOrthographicSize, Target.CameraController.CameraMinSize, Target.CameraController.CameraMaxSize);

            if (EditorGUI.EndChangeCheck())
            {
                // 实时预览FOV设置效果
                var camera = Target.CameraController.MainCamera;
                if (camera != null)
                {
                    if (camera.orthographic)
                    {
                        camera.orthographicSize = MapData.cameraMarginInfo.initialOrthographicSize;
                    }
                    else
                    {
                        Target.CameraController.SetCameraFOVSize(MapData.cameraMarginInfo.initialFOV);
                        camera.fieldOfView = Mathf.Clamp(MapData.cameraMarginInfo.initialFOV,
                            Target.CameraController.CameraMinFOV,
                            Target.CameraController.CameraMaxFOV);

                        // 强制刷新场景视图
                        SceneView.RepaintAll();
                    }
                }
            }

            EditorGUILayout.LabelField("请在场景中点击网格来选取相机初始位置，并在Game窗口中查看");
            if (GUILayout.Button("退出编辑相机初始位置"))
            {
                _isEditingCameraOriginPos = false;
            }
        }
    }

    private void OnSceneGUI()
    {
        if (!_isEditingCameraOriginPos)
            return;
        ResetSceneGUIState(Event.current);
        DrawMouse();
        HandleInput();
    }

    private void ResetSceneGUIState(Event e)
    {
        _isHitGround = false;
        _mouseHitPosition = Vector3.zero;
        _currEvent = e;
        _ground = null;
    }

    private void DrawMouse()
    {
        var mousePosSS = _currEvent.mousePosition;
        var ray = HandleUtility.GUIPointToWorldRay(mousePosSS);
        var count = Physics.RaycastNonAlloc(ray, _hits, 1000, 1 << LayerMask.NameToLayer("Ground"));
        if (count > 0)
        {
            var hit = _hits[0];
            _mouseHitPosition = hit.point;
            Handles.color = Color.yellow;
            Handles.DrawSolidDisc(_mouseHitPosition, Vector3.up, 1);
            _isHitGround = true;
            _ground = hit.collider.gameObject;
        }
    }

    private void HandleInput()
    {
        if (!_isHitGround)
            return;


        var controlID = GUIUtility.GetControlID(FocusType.Passive);
        var eventType = _currEvent.GetTypeForControl(controlID);

        switch (eventType)
        {
            case EventType.MouseDown:
                if (_currEvent.button == 0)
                {
                    GUIUtility.hotControl = controlID;
                    if (_isEditingCameraOriginPos)
                    {
                        var cell = TGS.CellGetAtPosition(_mouseHitPosition, true);
                        if (cell == null)
                        {
                            Debug.LogError("点击点附件没有网格!设置相机初始位置失败!");
                            return;
                        }

                        MapData.initialCameraPosition = MapData.BlockIndex2Position(cell.index);
                        // 确保相机包围盒使用当前地图的网格范围
                        if (Target?.CameraController != null)
                        {
                            Target.CameraController.CameraBounds = TGS.bounds;
                        }
                        Target.CameraController.InitializeCameraPosition(
                            Map.BlockPosition2WorldPosition(MapData.initialCameraPosition));
                    }
                }

                break;
            case EventType.MouseUp:
                if (GUIUtility.hotControl == controlID && _currEvent.button == 0)
                {
                    GUIUtility.hotControl = 0;
                    _currEvent.Use();
                }

                break;
        }
    }

    #region 网格参考图导出功能

    private void CaptureGridImage()
    {
        var tgs = TGS;
        if (tgs == null)
        {
            Debug.LogError("无法找到TerrainGridSystem组件");
            return;
        }

        // 获取网格尺寸信息
        int columnCount = tgs.columnCount;
        int rowCount = tgs.rowCount;

        if (columnCount <= 0 || rowCount <= 0)
        {
            Debug.LogError("网格尺寸无效");
            return;
        }

        try
        {
            EditorUtility.DisplayProgressBar("导出网格参考图", "初始化...", 0.1f);

            // 询问用户选择网格颜色
            bool useHighContrast = EditorUtility.DisplayDialog("选择网格颜色",
                "请选择导出的网格线颜色：",
                "默认颜色", "高对比度（白底黑线）");

            // 获取网格的实际世界空间边界
            Bounds gridBounds = tgs.bounds;

            // 计算网格的实际世界空间大小（单位：Unity单位）
            float worldWidth = gridBounds.size.x;
            float worldHeight = gridBounds.size.z; // 注意z轴是Unity中的垂直方向

            // 计算图片像素尺寸 = 世界空间大小 * 100
            int textureWidth = Mathf.CeilToInt(worldWidth * 100);
            int textureHeight = Mathf.CeilToInt(worldHeight * 100);

            // 显示计算结果并确认
            if (!EditorUtility.DisplayDialog("确认导出",
                    $"网格真实尺寸: {worldWidth:F2}x{worldHeight:F2} 单位\n" +
                    $"导出图片分辨率: {textureWidth}x{textureHeight} 像素\n\n" +
                    "继续导出？",
                    "导出", "取消"))
            {
                EditorUtility.ClearProgressBar();
                return;
            }

            EditorUtility.DisplayProgressBar("导出网格参考图", "准备相机...", 0.2f);

            // 创建临时相机
            GameObject tempCameraObj = new GameObject("TempGridCamera");
            Camera tempCamera = tempCameraObj.AddComponent<Camera>();
            tempCamera.clearFlags = CameraClearFlags.SolidColor;
            tempCamera.backgroundColor = useHighContrast ? Color.white : new Color(1, 1, 1, 0); // 高对比度时使用白底
            tempCamera.orthographic = true;

            // 将相机放置在网格正上方
            tempCamera.transform.position = new Vector3(
                gridBounds.center.x,
                gridBounds.max.y + 10, // 确保相机在网格上方足够高
                gridBounds.center.z
            );
            tempCamera.transform.rotation = Quaternion.Euler(90, 0, 0); // 俯视

            // 设置相机的视图大小，使其刚好包含整个网格
            tempCamera.orthographicSize = worldHeight * 0.5f; // 正交相机尺寸是高度的一半
            tempCamera.aspect = worldWidth / worldHeight;

            EditorUtility.DisplayProgressBar("导出网格参考图", "创建渲染纹理...", 0.3f);

            // 创建RenderTexture
            RenderTexture renderTexture =
                new RenderTexture(textureWidth, textureHeight, 24, RenderTextureFormat.ARGB32);
            renderTexture.antiAliasing = 1;
            renderTexture.filterMode = FilterMode.Point; // 避免模糊
            renderTexture.Create();

            // 保存原始状态
            bool originalShowCells = tgs.showCells;
            bool originalShowTerritories = tgs.showTerritories;
            Color originalCellBorderColor = tgs.cellBorderColor;
            float originalCellBorderThickness = tgs.cellBorderThickness;

            try
            {
                EditorUtility.DisplayProgressBar("导出网格参考图", "设置网格渲染参数...", 0.4f);

                // 临时设置网格渲染参数
                tgs.showCells = true;
                tgs.showTerritories = false;

                // 设置网格线颜色和宽度
                if (useHighContrast)
                {
                    tgs.cellBorderColor = Color.black;
                    tgs.cellBorderThickness = Mathf.Max(2.0f, tgs.cellBorderThickness); // 确保线条足够粗
                }

                EditorUtility.DisplayProgressBar("导出网格参考图", "渲染网格...", 0.6f);

                // 设置并渲染
                RenderTexture originalRenderTexture = RenderTexture.active;
                tempCamera.targetTexture = renderTexture;
                RenderTexture.active = renderTexture;

                // 设置相机渲染遮罩，只渲染网格层
                tempCamera.cullingMask = 1 << tgs.gameObject.layer;

                // 渲染场景到RenderTexture
                tempCamera.Render();

                EditorUtility.DisplayProgressBar("导出网格参考图", "创建图片...", 0.7f);

                // 创建纹理并读取像素
                Texture2D texture2D = new Texture2D(textureWidth, textureHeight, TextureFormat.RGBA32, false);
                texture2D.ReadPixels(new Rect(0, 0, textureWidth, textureHeight), 0, 0);
                texture2D.Apply();

                EditorUtility.DisplayProgressBar("导出网格参考图", "保存图片...", 0.8f);

                // 保存为PNG
                byte[] bytes = texture2D.EncodeToPNG();
                string fileName = $"GridMap_{textureWidth}x{textureHeight}_{System.DateTime.Now:yyyyMMdd_HHmmss}.png";
                string path = EditorUtility.SaveFilePanel("保存网格图片", Application.dataPath, fileName, "png");

                if (!string.IsNullOrEmpty(path))
                {
                    try
                    {
                        System.IO.File.WriteAllBytes(path, bytes);
                        EditorUtility.DisplayProgressBar("导出网格参考图", "刷新资源...", 0.9f);
                        AssetDatabase.Refresh();

                        // 如果路径在Assets文件夹内，获取相对路径并高亮显示导出的贴图
                        if (path.StartsWith(Application.dataPath))
                        {
                            var assetPath = "Assets" + path.Substring(Application.dataPath.Length);
                            Texture2D exportedTexture = AssetDatabase.LoadAssetAtPath<Texture2D>(assetPath);
                            if (exportedTexture != null)
                            {
                                EditorGUIUtility.PingObject(exportedTexture);
                                Selection.activeObject = exportedTexture;
                            }
                        }

                        // 显示成功信息和使用说明
                        EditorUtility.DisplayDialog("导出成功",
                            $"网格图片已导出\n" +
                            $"网格实际尺寸: {worldWidth:F2}x{worldHeight:F2} 单位\n" +
                            $"导出图片分辨率: {textureWidth}x{textureHeight} 像素\n" +
                            $"缩放比例: 100像素/单位\n" +
                            $"路径: {path}\n\n" +
                            "使用说明:\n" +
                            "1. 在美术软件中直接使用此图片作为参考层\n" +
                            "2. 绘制的美术资源与网格完全对齐即可\n" +
                            "3. 导入到Unity后无需调整Scale，将自动匹配网格",
                            "确定");
                    }
                    catch (System.Exception e)
                    {
                        EditorUtility.DisplayDialog("导出失败", $"保存图片时发生错误: {e.Message}", "确定");
                    }
                }

                // 清理资源
                RenderTexture.active = originalRenderTexture;
                tempCamera.targetTexture = null;
                Object.DestroyImmediate(texture2D);
                Object.DestroyImmediate(renderTexture);
            }
            finally
            {
                // 恢复原始状态
                tgs.showCells = originalShowCells;
                tgs.showTerritories = originalShowTerritories;
                tgs.cellBorderColor = originalCellBorderColor;
                tgs.cellBorderThickness = originalCellBorderThickness;

                // 清理相机
                Object.DestroyImmediate(tempCameraObj);
            }
        }
        catch (System.Exception e)
        {
            Debug.LogException(e);
            EditorUtility.DisplayDialog("导出失败", $"导出过程中发生错误: {e.Message}", "确定");
        }
        finally
        {
            // 无论如何都清除进度条
            EditorUtility.ClearProgressBar();
        }
    }

    #endregion
}