using System;
using System.Collections.Generic;
using System.Linq;
using UnityEditor;
using UnityEditor.SceneManagement;
using UnityEngine;
using UnityEngine.EventSystems;
using UnityEngine.Rendering;
using UnityEngine.SceneManagement;
using System.IO;
using Object = UnityEngine.Object;

public abstract class PostProcessor
{
    public const string SCENE_POST_PROCESS_NAME = "PostProcess";
    private const string SCENE_SURFACE_FOLDER_NAME = "SurfaceData";
    private const string SCENE_COMBINED_NAME = "Combined";

    private const string GROUND_SPLIT_NAME = "GroundSplit";
    private const string LIGHT_BAKE_NAME = "LightMaps";

    protected const string SCENE_POSTPROCESS_DIR = "Assets/Art_Out/AutoGen/PostProcessScenes";
    protected const string PREFAB_POSTPROCESS_DIR = "Assets/Art_Out/AutoGen/PostProcessPrefabs";
    protected const string SURFACE_SHADER_PATH = "Assets/Code/Shaders/Scene/NLD_Scene_Surface.shader";

    protected const string SCENE_ADDRESSABLE_GROUP = "PostProcessScenes";
    protected const string PREFAB_ADDRESSABLE_GROUP = "PostProcessPrefabs";

    // 区分剧情场景前缀
    protected const string STORY_SCENE_PREFIX = "story_";

    private const int GROUND_SPLIT_WIDTH = 1024;
    private const int GROUND_SPLIT_HEIGHT = 1024;
    private const int UPP = 100;

    // 存储渲染器和它们的原始材质映射
    private Dictionary<Renderer, Material[]> originalMaterials = new Dictionary<Renderer, Material[]>();

    // 存储需要进行材质恢复的渲染器列表
    private List<Renderer> renderersToRestore = new List<Renderer>();

    private readonly List<string> sceneRoots = new()
    {
        "Main Camera", "TerrainGridSystem", "Art", "SceneManager", "MapEditor", "LevelEditor", "TGSPreview",
        "InputManager (Singleton)"
    };

    /// <summary>
    /// 需要烘焙的节点
    /// </summary>
    private readonly List<string> bakeRoot = new()
    {
        "Trees", "Buildings", "CombinedRoot"
    };

    /// <summary>
    /// 需要烘焙和关闭阴影的地面节点
    /// </summary>
    private readonly List<string> groundRoot = new()
    {
        "Ground_2"
    };

    protected string ProcessedResourceDir => $"{ResourcesBaseDir}/{PostProcessFolderName}";

    protected abstract string ResourcesBaseDir { get; }

    private string LightBakeDir => $"{ProcessedResourceDir}/{LIGHT_BAKE_NAME}";

    private string SurfaceDir => $"{ProcessedResourceDir}/{SCENE_SURFACE_FOLDER_NAME}";

    private string CombinedDir => $"{ProcessedResourceDir}/{SCENE_COMBINED_NAME}";

    private string GroundSplitDir => $"{ProcessedResourceDir}/{GROUND_SPLIT_NAME}";

    protected abstract string PostProcessFolderName { get; }

    protected PostProcessInstructor _processInstructor;

    private PostProcessInstructor _clonedProcessInstructor;

    //private NLDSceneManager NLDSceneManager { get; set; }
    //private NLDSceneManager _postProcessSceneManager;

    private bool HasClone { get; set; }

    protected abstract Object AssetToPostProcess { get; }

    protected string OriginAssetPath => AssetDatabase.GetAssetPath(AssetToPostProcess);

    protected abstract string OutputAssetPath { get; }

    private PostProcessInstructor PostProcessInstructor => HasClone ? _clonedProcessInstructor : _processInstructor;

    private Transform CombinedObjectsRoot
    {
        get
        {
            if (PostProcessInstructor == null || PostProcessInstructor.combinedObjectsRoot == null)
            {
                Debug.LogError("找不到Art节点!");
                return PostProcessInstructor.transform.parent;
            }

            return PostProcessInstructor.combinedObjectsRoot;
        }
    }

    private bool CheckPostProcessInstructor(PostProcessInstructor postProcessInstructor)
    {
        if (postProcessInstructor == null)
        {
            Debug.LogError("postProcessInstructor is null");
            return false;
        }

        if (postProcessInstructor.processPrefab &&
            (!PrefabUtility.IsPartOfAnyPrefab(postProcessInstructor) ||
             EditorUtility.IsPersistent(postProcessInstructor)))
        {
            Debug.LogError("postProcessInstructor不在任何预制体内或者其不是预制体实例");
            return false;
        }

        var currentScene = postProcessInstructor.gameObject.scene;
        var objs = currentScene.GetRootGameObjects();
        foreach (var obj in objs)
        {
            if (!sceneRoots.Contains(obj.name))
            {
                DebugUtil.LogWarning("{1} 场景有其他节点:{0}，请检查节点规范", obj.name, currentScene.name);
            }
        }

        return true;
    }

    protected virtual void Init(PostProcessInstructor postProcessInstructor)
    {
        _processInstructor = postProcessInstructor;
    }

    public void PostProcess(PostProcessInstructor postProcessInstructor, bool destroyAfterPostProcess = false,
        bool defaultCameraParam = true)
    {
        if (!CheckPostProcessInstructor(postProcessInstructor))
            return;
        Init(postProcessInstructor);
        HasClone = false;
        EditorSceneManager.SaveOpenScenes();
        PrepareFolders();
        //NLDSceneManager = CommonUtils.GetSceneRootComponent<NLDSceneManager>(Scene);
        //暂时先不渲染成面片(地面阴影还没法解决，以及一些与笔刷工具的耦合)
        //BakeSurfaceData();

        _clonedProcessInstructor = Clone();
        HasClone = true;
        if (_clonedProcessInstructor == null)
        {
            Debug.LogError("_clonedProcessInstructor is null!");
            return;
        }


        BakeCombinedGameObject();

        BakeLightmaps();

        // SplitGroundTexture();
        SetFogPosition();
        if (!defaultCameraParam)
        {
            SetCameraParam();
        }

        RemoveRedundant();

        DestroyUselessObject();
        AfterAll(destroyAfterPostProcess);
        PostProcessData.EditorInstance.AddPostProcessData(AssetToPostProcess, OutputAssetPath);
        Debug.Log($"执行后处理成功，后处理资源源路径:{OriginAssetPath} 后处理后路径:{OutputAssetPath}");
        AssetDatabase.SaveAssets();
        AssetDatabase.Refresh();
    }

    protected abstract void AfterAll(bool destroyAfterPostProcess);

    public static PostProcessInstructor FindInstructorInScene(Scene scene)
    {
        var instructors = Object.FindObjectsOfType<PostProcessInstructor>();
        return instructors.FirstOrDefault(pi => pi.gameObject.scene == scene);
    }

    // private void DeleteSurfaceData(SceneSurfaceData surfaceData)
    // {
    //     var mat = AssetDatabase.LoadAssetAtPath<Material>(surfaceData.materialPath);
    //     if (mat == null)
    //     {
    //         return;
    //     }
    //
    //     AssetDatabase.DeleteAsset(AssetDatabase.GetAssetPath(mat.mainTexture));
    //     AssetDatabase.DeleteAsset(surfaceData.materialPath);
    // }

    private void PrepareFolders()
    {
        AssetDatabase.DeleteAsset(ProcessedResourceDir);
        AssetDatabase.CreateFolder(ResourcesBaseDir, PostProcessFolderName);
        AssetDatabase.CreateFolder(ProcessedResourceDir, SCENE_SURFACE_FOLDER_NAME);
        AssetDatabase.CreateFolder(ProcessedResourceDir, SCENE_COMBINED_NAME);
        AssetDatabase.CreateFolder(ProcessedResourceDir, GROUND_SPLIT_NAME);
    }

    protected abstract PostProcessInstructor Clone();

    //烘焙面片数据
    // private void BakeSurfaceData()
    // {
    //     if (NLDSceneManager == null)
    //         return;
    //     NLDSceneManager.allSceneSurfaceData.Clear();
    //     List<SceneObjectRenderInfo> renderInfos = new();
    //     var camera = Camera.main;
    //     if (camera == null)
    //     {
    //         Debug.LogError("找不到主相机!请设置主相机的tag");
    //         return;
    //     }
    //
    //     foreach (var sObj in NLDSceneManager.sceneObjects)
    //     {
    //         if (sObj && sObj.renderInfo && !renderInfos.Contains(sObj.renderInfo))
    //         {
    //             var brush = SceneBrushHelper.GetSceneBrushByRenderInfo(sObj.renderInfo);
    //             if (!brush.SupportSurface)
    //                 continue;
    //             renderInfos.Add(sObj.renderInfo);
    //             var gameObject = brush.prefab;
    //             var texPath =
    //                 EditorUtil.GetAssetUniquePath($"{SurfaceDir}/{gameObject.name}_surface.jpg", out var name);
    //             Vector3 offset = Vector3.zero;
    //             Vector3 scale = Vector3.one;
    //             Quaternion rotation = Quaternion.identity;
    //             var texture = gameObject.RenderToTexture(camera, texPath, ref offset, ref scale, ref rotation);
    //             if (texture != null)
    //             {
    //                 var material = new Material(AssetDatabase.LoadAssetAtPath<Shader>(SURFACE_SHADER_PATH))
    //                 {
    //                     mainTexture = texture
    //                 };
    //                 material.enableInstancing = true;
    //                 var matPath = $"{SurfaceDir}/{gameObject.name}_surface.mat".Replace("\\", "/");
    //                 EditorUtil.CreateAnUniqueAsset(material, matPath);
    //                 SceneSurfaceData surfaceData = new()
    //                 {
    //                     renderInfo = sObj.renderInfo,
    //                     materialPath = matPath,
    //                     cachedOffset = offset,
    //                     eulerAngleID = gameObject.transform.eulerAngles,
    //                     cachedRotation = rotation.eulerAngles,
    //                     cachedScale = scale,
    //                     valid = true,
    //                 };
    //                 NLDSceneManager.allSceneSurfaceData.Add(surfaceData);
    //             }
    //         }
    //     }
    //
    //     //MarkSceneDirty();
    // }

    //合并网格，贴图
    private void BakeCombinedGameObject()
    {
        var art = CombinedObjectsRoot;

        // 不再自动执行模型切割，由外部单独调用

        // 收集渲染器
        var renderers = CollectRenderers();

        Debug.Log($"合批前收集到 {renderers.Count} 个渲染器");

        var prefix = GetScenePrefix();
        var combinedRoot = new GameObject("CombinedRoot");
        combinedRoot.transform.parent = art.transform;

        try
        {
            if (PostProcessInstructor.enableBatchGrouping)
            {
                // 按照距离对渲染器进行分组
                Dictionary<string, List<Renderer>> rendererGroups =
                    GroupRenderersByCircularDistance(renderers, PostProcessInstructor.batchGroupDistance);
                SceneCombineUtil.Instance.CombineGameObjectsByGroups(rendererGroups, combinedRoot.transform,
                    CombinedDir,
                    (int)PostProcessInstructor.postProcessTextureUnitSize,
                    PostProcessInstructor.sampleMaterials, prefix);
            }
            else
            {
                // 使用原有的合批方式
                SceneCombineUtil.Instance.CombineGameObjects(renderers, combinedRoot.transform, CombinedDir,
                    (int)PostProcessInstructor.postProcessTextureUnitSize,
                    PostProcessInstructor.sampleMaterials, prefix);
            }

            // 如果是剧情场景，重命名生成的所有物体添加前缀
            if (!string.IsNullOrEmpty(prefix))
            {
                var combined = combinedRoot.GetComponentsInChildren<Transform>();
                foreach (var trans in combined)
                {
                    if (trans != combinedRoot.transform && !trans.name.StartsWith(prefix))
                    {
                        trans.name = prefix + trans.name;
                    }
                }
            }

            foreach (var renderer in renderers)
            {
                if (renderer != null && renderer.gameObject != null)
                {
                    Object.DestroyImmediate(renderer.gameObject);
                }
            }
        }
        catch (System.Exception ex)
        {
            Debug.LogError($"合批过程中发生错误: {ex.Message}\n{ex.StackTrace}");
            // 如果合批失败，保留原始物体
            if (combinedRoot != null)
            {
                Object.DestroyImmediate(combinedRoot);
            }
        }
    }

    // 根据距离对渲染器进行分组
    private Dictionary<string, List<Renderer>> GroupRenderersByCircularDistance(List<Renderer> renderers,
        float maxDistance)
    {
        Dictionary<string, List<Renderer>> groups = new Dictionary<string, List<Renderer>>();
        int groupIndex = 0;

        // 已分组的渲染器
        HashSet<Renderer> processedRenderers = new HashSet<Renderer>();

        // 对所有渲染器进行处理
        while (processedRenderers.Count < renderers.Count)
        {
            // 找到第一个未处理的渲染器作为新组的起点
            Renderer startRenderer = null;
            foreach (var renderer in renderers)
            {
                if (!processedRenderers.Contains(renderer))
                {
                    startRenderer = renderer;
                    break;
                }
            }

            if (startRenderer == null)
                break;

            // 创建新组
            List<Renderer> currentGroup = new List<Renderer>();
            currentGroup.Add(startRenderer);
            processedRenderers.Add(startRenderer);

            bool addedNew = true;
            while (addedNew)
            {
                addedNew = false;

                // 计算当前组的中心点
                Vector3 groupCenter = CalculateGroupCenter(currentGroup);

                // 查找距离中心点在阈值内的未处理渲染器
                foreach (var renderer in renderers)
                {
                    if (processedRenderers.Contains(renderer))
                        continue;

                    float distance = Vector3.Distance(groupCenter, renderer.transform.position);
                    if (distance <= maxDistance)
                    {
                        currentGroup.Add(renderer);
                        processedRenderers.Add(renderer);
                        addedNew = true;
                    }
                }
            }

            // 保存当前组
            groups.Add($"Group_{groupIndex}", currentGroup);
            groupIndex++;
        }

        Debug.Log($"基于圆形区域分组：将{renderers.Count}个渲染器分成{groups.Count}个组，半径为{maxDistance}");
        return groups;
    }

    private Vector3 CalculateGroupCenter(List<Renderer> group)
    {
        if (group.Count == 0)
            return Vector3.zero;

        Vector3 sum = Vector3.zero;
        foreach (var renderer in group)
        {
            sum += renderer.transform.position;
        }

        return sum / group.Count;
    }

    // 原先基于顶点数的分组方法（保留作为备用）
    private Dictionary<string, List<Renderer>> GroupRenderers(List<Renderer> renderers, int groupSize)
    {
        Dictionary<string, List<Renderer>> groups = new Dictionary<string, List<Renderer>>();
        int totalVertexCount = 0;
        int groupIndex = 0;
        List<Renderer> currentGroup = new List<Renderer>();

        foreach (var renderer in renderers)
        {
            var meshFilter = renderer.GetComponent<MeshFilter>();
            if (meshFilter == null || meshFilter.sharedMesh == null)
                continue;

            // 获取当前渲染器的顶点数
            int vertexCount = meshFilter.sharedMesh.vertexCount;

            // 如果当前组顶点数已经超过限制或这个模型本身太大，创建新组
            if ((totalVertexCount + vertexCount > groupSize && currentGroup.Count > 0) || vertexCount > groupSize)
            {
                // 保存当前组
                if (currentGroup.Count > 0)
                {
                    groups.Add($"Group_{groupIndex}", new List<Renderer>(currentGroup));
                    currentGroup.Clear();
                    totalVertexCount = 0;
                    groupIndex++;
                }

                // 如果单个模型超过大小限制，单独放一组
                if (vertexCount > groupSize)
                {
                    groups.Add($"Group_{groupIndex}_LargeModel_{renderer.name}", new List<Renderer> { renderer });
                    groupIndex++;
                    continue;
                }
            }

            // 添加到当前组
            currentGroup.Add(renderer);
            totalVertexCount += vertexCount;
        }

        // 确保最后一组也被添加
        if (currentGroup.Count > 0)
        {
            groups.Add($"Group_{groupIndex}", new List<Renderer>(currentGroup));
        }

        Debug.Log($"分组合批：将{renderers.Count}个渲染器分成{groups.Count}个组，按每组约{groupSize}个顶点");
        return groups;
    }

    private List<Renderer> CollectRenderers()
    {
        List<Renderer> allRenderers = new();
        foreach (var root in PostProcessInstructor.rootsToCombine)
        {
            if (!root)
            {
                continue;
            }

            var render = root.GetComponentsInChildren<Renderer>();
            if (render is not { Length: > 0 })
            {
                continue;
            }

            allRenderers.AddRange(render);
        }

        return allRenderers;
    }

    #region 地面切图

    private void SplitGroundTexture()
    {
        var ground = PostProcessInstructor.ground;
        if (ground == null)
            return;
        var renderer = ground.GetComponent<MeshRenderer>();
        if (renderer == null)
            return;
        var mat = renderer.sharedMaterial;
        if (mat == null)
            return;
        var texture = mat.mainTexture as Texture2D;
        if (texture == null)
            return;

        var prefix = GetScenePrefix();
        var groundParent = Object.Instantiate(ground, ground.transform.parent, true);
        groundParent.name = "Ground";

        // 计算原始地面的大小
        var originalScale = ground.transform.localScale;
        var originalWidth = originalScale.x;
        var originalHeight = originalScale.y;

        var originPos = -new Vector3(originalWidth / 2f, originalHeight / 2f, 0);
        groundParent.transform.localScale = Vector3.one;

        // 确保目录存在
        if (!AssetDatabase.IsValidFolder(GroundSplitDir))
        {
            var parentDir = Path.GetDirectoryName(GroundSplitDir);
            if (!AssetDatabase.IsValidFolder(parentDir))
            {
                AssetDatabase.CreateFolder(Path.GetDirectoryName(parentDir), Path.GetFileName(parentDir));
            }

            AssetDatabase.CreateFolder(parentDir, Path.GetFileName(GroundSplitDir));
        }

        var textures =
            SplitTextureUtil.SplitTexture(texture, GROUND_SPLIT_WIDTH, GROUND_SPLIT_HEIGHT, GroundSplitDir, prefix);

        // 计算每个分割块的大小（基于原始地面大小）
        var rowCount = textures.GetLength(0);
        var columnCount = textures.GetLength(1);
        var blockWidth = originalWidth / columnCount;
        var blockHeight = originalHeight / rowCount;

        for (int row = 0; row < rowCount; row++)
        {
            for (int column = 0; column < columnCount; column++)
            {
                var splitTexture = textures[row, column];
                if (splitTexture == null)
                {
                    Debug.LogError($"Failed to load split texture at row {row}, column {column}");
                    continue;
                }

                var splitGround = Object.Instantiate(ground, groundParent.transform, true);
                Object.DestroyImmediate(splitGround.GetComponent<Collider>());
                var splitName = $"{prefix}Ground_{row}_{column}";
                splitGround.name = splitName;

                // 设置固定的quad大小，不随贴图尺寸变化
                splitGround.transform.localScale = new Vector3(blockWidth, blockHeight, 1);

                // 创建并保存材质
                var splitMat = Object.Instantiate(mat);
                splitMat.mainTexture = splitTexture;
                var matPath = $"{GroundSplitDir}/{splitName}.mat";
                AssetDatabase.CreateAsset(splitMat, matPath);
                AssetDatabase.SaveAssets();
                AssetDatabase.Refresh();

                // 重新加载保存后的材质
                var savedMat = AssetDatabase.LoadAssetAtPath<Material>(matPath);
                if (savedMat == null)
                {
                    Debug.LogError($"Failed to load saved material at {matPath}");
                    continue;
                }

                var meshRenderer = splitGround.GetComponent<MeshRenderer>();
                if (meshRenderer != null)
                {
                    meshRenderer.sharedMaterial = savedMat;
                    meshRenderer.shadowCastingMode = ShadowCastingMode.Off;
                }

                // 计算位置，使用固定的block大小
                splitGround.transform.localPosition =
                    originPos + new Vector3(column * blockWidth + blockWidth / 2f, row * blockHeight + blockHeight / 2f,
                        0);
            }
        }

        Object.DestroyImmediate(ground);
        Object.DestroyImmediate(groundParent.GetComponent<Renderer>());
        Object.DestroyImmediate(groundParent.GetComponent<Collider>());
        var boxCollider = groundParent.gameObject.AddComponent<BoxCollider>();
        boxCollider.size = new Vector3(200, 200, 1);
        boxCollider.center = new Vector3(0, 0, 0.5f);
        Object.DestroyImmediate(groundParent.GetComponent<MeshFilter>());
    }

    #endregion


    private void SetFogPosition()
    {
        var fog = PostProcessInstructor.fog;
        if (fog == null)
            return;
        var transform = fog.transform;
        var position = transform.position;
        transform.position = new Vector3(position.x, position.y + 0.01f, position.z);
    }

    private void RemoveRedundant()
    {
        Scene postScene = PostProcessInstructor.gameObject.scene;

        foreach (GameObject rootObj in postScene.GetRootGameObjects())
        {
            EventSystem[] eventSystems = rootObj.GetComponentsInChildren<EventSystem>();
            if (null == eventSystems)
                continue;

            for (int i = 0; i < eventSystems.Length; ++i)
            {
                Object.DestroyImmediate(eventSystems[i].gameObject);
            }
        }
    }


    private void DestroyUselessObject()
    {
        foreach (var root in PostProcessInstructor.rootsToCombine)
        {
            if (!root)
            {
                continue;
            }

            Object.DestroyImmediate(root.gameObject, true);
        }

        Object.DestroyImmediate(PostProcessInstructor.gameObject, true);
    }

    private bool IsStoryScene()
    {
        string sceneName = PostProcessInstructor.gameObject.scene.name;
        return sceneName.Contains(STORY_SCENE_PREFIX);
    }

    private string GetScenePrefix()
    {
        return IsStoryScene() ? STORY_SCENE_PREFIX : "";
    }

    #region 保存相机参数

    private void SetCameraParam()
    {
        var postScene = PostProcessInstructor.gameObject.scene;

        var scene = _processInstructor.gameObject.scene;

        foreach (var rootObj in scene.GetRootGameObjects())
        {
            if (rootObj.CompareTag("MainCamera"))
            {
                CloneCameraToScene(rootObj, postScene);
                break;
            }
        }
    }

    private void CloneCameraToScene(GameObject obj, Scene scene)
    {
        // 只更改transform
        var oldPosition = obj.transform.position;
        var oldRotation = obj.transform.rotation;
        GameObject oldCamera = null;
        foreach (var rootObj in scene.GetRootGameObjects())
        {
            if (rootObj.CompareTag("MainCamera"))
            {
                oldCamera = rootObj;
                break;
            }
        }

        if (oldCamera == null) return;
        oldCamera.transform.position = oldPosition;
        oldCamera.transform.rotation = oldRotation;
    }

    #endregion

    #region 烘焙

    /// <summary>
    /// 烘焙灯光贴图的方法
    /// </summary>
    private void BakeLightmaps()
    {
        // 检查是否开启了烘焙选项
        if (PostProcessInstructor == null || !PostProcessInstructor.enableLightmapBaking)
            return;

        Debug.Log("开始灯光烘焙过程...");

        // 清空旧的材质映射
        originalMaterials.Clear();
        renderersToRestore.Clear();

        // 1. 从CombinedObjectsRoot下查找灯光，分为烘焙灯光和实时灯光
        var bakeLights = new List<Light>();
        var realtimeLights = new List<Light>();

        var lights = CombinedObjectsRoot.GetComponentsInChildren<Light>();
        foreach (var light in lights)
        {
            // 跳过相机上的灯光，避免重复
            if (light.GetComponentInParent<Camera>() != null)
                continue;

            // 复制灯光对象
            var realtimeLightObj = Object.Instantiate(light.gameObject, light.transform.parent);
            var realtimeLight = realtimeLightObj.GetComponent<Light>();

            // 设置为烘焙和实时模式
            light.gameObject.name += "_Bake";
            light.lightmapBakeType = LightmapBakeType.Baked;
            realtimeLight.lightmapBakeType = LightmapBakeType.Realtime;
            // 取消烘焙灯光的static
            GameObjectUtility.SetStaticEditorFlags(light.gameObject, 0);

            // 添加到列表
            bakeLights.Add(light);
            break;
        }
        
        // 查找并关闭所有实时灯光
        var allSceneLights = Object.FindObjectsOfType<Light>();

        foreach (var light in allSceneLights)
        {
            // 只处理实时灯光
            if (light.lightmapBakeType == LightmapBakeType.Realtime)
            {
                if (light.gameObject.activeSelf)
                {
                    light.gameObject.SetActive(false);
                    realtimeLights.Add(light);
                }
            }
        }

        // 3. 收集指定节点下需要烘焙的渲染器
        var bakedRenderers = new List<Renderer>();

        // 处理bakeRoot中的渲染器，从CombinedObjectsRoot下查找
        foreach (var rootName in bakeRoot)
        {
            var rootObj = FindChildRecursive(CombinedObjectsRoot, rootName);
            if (rootObj != null)
            {
                var renderers = rootObj.GetComponentsInChildren<Renderer>(true);
                if (renderers != null && renderers.Length > 0)
                {
                    Debug.Log($"从{rootName}收集到 {renderers.Length} 个渲染器用于烘焙");
                    foreach (var renderer in renderers)
                    {
                        if (renderer.receiveShadows)
                        {
                            // 保证物体阴影打开
                            renderer.shadowCastingMode = ShadowCastingMode.On;
                            bakedRenderers.Add(renderer);

                            // 设置静态标志
                            GameObjectUtility.SetStaticEditorFlags(renderer.gameObject,
                                StaticEditorFlags.ContributeGI | StaticEditorFlags.ReflectionProbeStatic);
                        }
                    }
                }
            }
        }

        // 处理groundRoot中的渲染器，从CombinedObjectsRoot下查找
        foreach (var rootName in groundRoot)
        {
            var rootObj = FindChildRecursive(CombinedObjectsRoot, rootName);
            if (rootObj != null)
            {
                var renderers = rootObj.GetComponentsInChildren<Renderer>(true);
                if (renderers != null && renderers.Length > 0)
                {
                    Debug.Log($"从{rootName}收集到 {renderers.Length} 个地面渲染器用于烘焙");
                    foreach (var renderer in renderers)
                    {
                        renderer.shadowCastingMode = ShadowCastingMode.Off;
                        GameObjectUtility.SetStaticEditorFlags(renderer.gameObject,
                            StaticEditorFlags.ContributeGI | StaticEditorFlags.ReflectionProbeStatic);
                        DebugUtil.Log("groundRoot渲染器已设置静态标志");
                    }
                }
            }
        }

        // 处理 PostProcessInstructor.ground 指定的渲染器
        if (PostProcessInstructor.ground != null)
        {
            var renderer = PostProcessInstructor.ground.GetComponent<Renderer>();
            if (renderer != null)
            {
                renderer.shadowCastingMode = ShadowCastingMode.Off;
                // 设置静态标志
                GameObjectUtility.SetStaticEditorFlags(renderer.gameObject,
                    StaticEditorFlags.ContributeGI | StaticEditorFlags.ReflectionProbeStatic);
                DebugUtil.Log("PostProcessInstructor.ground渲染器已设置静态标志");
                // 将PostProcessInstructor.ground的RenderQueue改为3000
                var materials = renderer.sharedMaterials;
                for (int i = 0; i < materials.Length; i++)
                {
                    if (materials[i] != null)
                    {
                        renderer.shadowCastingMode = ShadowCastingMode.Off;
                        materials[i].renderQueue = 3000;
                        Debug.Log($"将PostProcessInstructor.ground的材质 {materials[i].name} 的RenderQueue从3000改回2000");
                    }
                }
            }
        }

        Debug.Log($"总共收集到 {bakedRenderers.Count} 个渲染器用于烘焙");

        // 替换Shader为支持光照贴图的Shader
        ReplaceShaderWithLightmapShader(bakedRenderers);
        
        // 4. 设置烘焙参数并开始烘焙
        var lightingSettings = new LightingSettings();

        // 获取当前场景的烘焙设置
        var activeScene = SceneManager.GetActiveScene();
        if (Lightmapping.TryGetLightingSettings(out var existingSettings))
        {
            lightingSettings = existingSettings;
        }
        else
        {
            // 如果没有现有设置，创建新的并分配给场景
            lightingSettings.name = $"{activeScene.name}_LightingSettings";
            AssetDatabase.CreateAsset(lightingSettings, $"Assets/{lightingSettings.name}.asset");
            Lightmapping.lightingSettings = lightingSettings;
        }

        // 设置烘焙参数
        lightingSettings.lightmapper = LightingSettings.Lightmapper.ProgressiveGPU;
        lightingSettings.directSampleCount = 1;
        lightingSettings.indirectSampleCount = 1;
        lightingSettings.environmentSampleCount = 1;
        lightingSettings.lightProbeSampleCountMultiplier = 8;
        lightingSettings.maxBounces = 1;
        lightingSettings.lightmapResolution = 40;
        lightingSettings.lightmapPadding = 2;
        lightingSettings.lightmapMaxSize = 1024;
        lightingSettings.lightmapCompression = LightmapCompression.HighQuality;
        lightingSettings.filteringMode = LightingSettings.FilterMode.Auto;

        Lightmapping.lightingSettings = lightingSettings;

        // 强制场景保存以确保设置生效
        EditorSceneManager.MarkSceneDirty(activeScene);
        EditorSceneManager.SaveOpenScenes();

        Debug.Log("开始烘焙灯光...");

        // 5. 开始烘焙
        Lightmapping.Bake();

        Debug.Log("灯光烘焙完成");

        // 6. 关闭所有烘焙物体的阴影投射
        foreach (var renderer in bakedRenderers)
        {
            if (renderer != null)
                renderer.shadowCastingMode = ShadowCastingMode.Off;
        }

        // 7. 删除烘焙灯光，打开实时灯光
        foreach (var light in bakeLights)
        {
            if (light != null)
                Object.DestroyImmediate(light.gameObject);
        }

        foreach (var light in realtimeLights)
        {
            if (light != null)
                light.gameObject.SetActive(true);
        }

        // 8. 恢复非地面物体的原始材质
        RestoreOriginalMaterials();

        // 9. 只将PostProcessInstructor.ground的RenderQueue从3000改回2000
        if (PostProcessInstructor.ground != null)
        {
            var renderer = PostProcessInstructor.ground.GetComponent<Renderer>();
            if (renderer != null)
            {
                var materials = renderer.sharedMaterials;
                for (int i = 0; i < materials.Length; i++)
                {
                    if (materials[i] != null)
                    {
                        materials[i].renderQueue = 2000;
                        Debug.Log($"将PostProcessInstructor.ground的材质 {materials[i].name} 的RenderQueue从3000改回2000");
                    }
                }
            }
        }

        // 刷新资源以确保RenderQueue修改已保存
        AssetDatabase.SaveAssets();
        AssetDatabase.Refresh();

        // 10. 复制光照烘焙文件到目标路径
        CopyLightmapFiles(activeScene);

        // 11. 保存场景
        EditorSceneManager.MarkSceneDirty(activeScene);
        EditorSceneManager.SaveOpenScenes();

        Debug.Log("灯光烘焙处理完成");
    }

    /// <summary>
    ///  移动光照烘焙相关文件到指定目录
    /// </summary>
    private void CopyLightmapFiles(Scene scene)
    {
        string sceneName = scene.name;

        Debug.Log("开始移动光照烘焙文件...");

        try
        {
            // 确保目标目录存在
            string lightmapDirAssetPath = GetAssetPath(LightBakeDir);
            if (!AssetDatabase.IsValidFolder(lightmapDirAssetPath))
            {
                // 创建父目录结构
                string[] folders = lightmapDirAssetPath.Split('/');
                string currentPath = folders[0]; // Assets

                for (int i = 1; i < folders.Length; i++)
                {
                    string folderName = folders[i];
                    string parentPath = currentPath;
                    currentPath = $"{currentPath}/{folderName}";

                    if (!AssetDatabase.IsValidFolder(currentPath))
                    {
                        AssetDatabase.CreateFolder(parentPath, folderName);
                    }
                }

                AssetDatabase.Refresh();
            }

            // 1. 移动LightingSettings.asset文件
            string lightingSettingsPath = $"Assets/{sceneName}_LightingSettings.asset";
            if (AssetDatabase.LoadAssetAtPath<UnityEngine.Object>(lightingSettingsPath) != null)
            {
                string destPath = $"{lightmapDirAssetPath}/{sceneName}_LightingSettings.asset";

                // 如果目标已存在，先删除
                if (AssetDatabase.LoadAssetAtPath<UnityEngine.Object>(destPath) != null)
                {
                    AssetDatabase.DeleteAsset(destPath);
                }

                AssetDatabase.MoveAsset(lightingSettingsPath, destPath);
                Debug.Log($"已移动: {lightingSettingsPath} -> {destPath}");
            }

            // 2. 移动整个光照目录
            string lightmapDirName = sceneName;
            string lightmapSourceDir = $"{Path.GetDirectoryName(scene.path)}/{lightmapDirName}";
            string lightmapSourceDirAssetPath = GetAssetPath(lightmapSourceDir);

            if (AssetDatabase.IsValidFolder(lightmapSourceDirAssetPath))
            {
                string destLightmapDir = $"{lightmapDirAssetPath}/{lightmapDirName}";

                // 如果目标已存在，先删除
                if (AssetDatabase.IsValidFolder(destLightmapDir))
                {
                    AssetDatabase.DeleteAsset(destLightmapDir);
                    AssetDatabase.Refresh();
                }

                // 直接移动整个目录
                string result = AssetDatabase.MoveAsset(lightmapSourceDirAssetPath, destLightmapDir);

                if (string.IsNullOrEmpty(result))
                {
                    Debug.Log($"已成功移动光照数据目录: {lightmapSourceDirAssetPath} -> {destLightmapDir}");
                }
                else
                {
                    Debug.LogError($"移动光照数据目录失败: {result}");
                }
            }
            else
            {
                Debug.LogWarning($"找不到光照数据目录: {lightmapSourceDirAssetPath}");
            }
        }
        catch (System.Exception e)
        {
            Debug.LogError($"移动光照文件时出错: {e.Message}");
        }

        AssetDatabase.Refresh();
        Debug.Log("光照烘焙文件移动完成");
    }

    // 获取Unity资源路径的简化方法
    private string GetAssetPath(string path)
    {
        // 已经是Assets路径格式
        if (path.StartsWith("Assets"))
            return path;

        // 绝对路径转相对Assets路径
        string fullPath = Path.GetFullPath(path);
        string assetsFullPath = Path.GetFullPath(Application.dataPath);

        if (fullPath.StartsWith(assetsFullPath))
            return "Assets" + fullPath.Substring(assetsFullPath.Length).Replace('\\', '/');

        return path;
    }

    // 替换材质的Shader为光照贴图支持的Shader
    private void ReplaceShaderWithLightmapShader(List<Renderer> renderers)
    {
        // 清空旧的材质映射
        originalMaterials.Clear();
        renderersToRestore.Clear();

        // 追踪已处理的材质和它们的新版本
        Dictionary<Material, Material> processedMaterialMap = new Dictionary<Material, Material>();

        // 尝试查找光照贴图Shader
        var lightmapShader = Shader.Find("NLD_URP/NLD_Scene_Lightmap");
        if (lightmapShader == null)
        {
            Debug.LogError("找不到NLD_Scene_Lightmap着色器，请确保它存在于项目中");
            return;
        }

        int replacedCount = 0;
        HashSet<Material> processedMaterials = new HashSet<Material>(); // 避免处理重复材质

        Debug.Log($"处理 {renderers.Count} 个渲染器用于Shader替换");

        foreach (var renderer in renderers)
        {
            if (renderer == null)
                continue;

            // 跳过地面渲染器（它们将使用地面专用的shader）
            bool isGroundRenderer = false;
            Transform parent = renderer.transform.parent;
            while (parent != null)
            {
                if (groundRoot.Contains(parent.name) ||
                    (PostProcessInstructor.ground != null && parent == PostProcessInstructor.ground.transform))
                {
                    isGroundRenderer = true;
                    break;
                }

                parent = parent.parent;
            }

            if (isGroundRenderer)
            {
                Debug.Log($"跳过地面渲染器: {renderer.name}");
                continue;
            }

            // 获取渲染器的所有材质
            Material[] sharedMaterials = renderer.sharedMaterials;
            if (sharedMaterials == null || sharedMaterials.Length == 0)
                continue;

            // 保存原始材质数组
            Material[] originalMaterialsArray = new Material[sharedMaterials.Length];
            Array.Copy(sharedMaterials, originalMaterialsArray, sharedMaterials.Length);
            originalMaterials[renderer] = originalMaterialsArray;

            // 添加到需要恢复的渲染器列表
            renderersToRestore.Add(renderer);

            // 创建新的材质数组，用于替换
            Material[] newMaterials = new Material[sharedMaterials.Length];

            for (int i = 0; i < sharedMaterials.Length; i++)
            {
                Material originalMaterial = sharedMaterials[i];
                if (originalMaterial == null)
                {
                    newMaterials[i] = null;
                    continue;
                }

                // 如果已经处理过这个材质，使用已经替换好的版本
                if (processedMaterialMap.TryGetValue(originalMaterial, out Material replacedMaterial))
                {
                    newMaterials[i] = replacedMaterial;
                    continue;
                }

                processedMaterials.Add(originalMaterial);

                // 创建材质实例，避免修改原始共享材质
                Material instanceMaterial = new Material(originalMaterial);

                if (instanceMaterial.shader != lightmapShader)
                {
                    // 记录原始shader
                    string originalShaderName = instanceMaterial.shader != null ? instanceMaterial.shader.name : "未知";

                    // 保存原始主贴图及其Scale/Offset
                    Texture mainTexture = null;
                    Vector2 texScale = Vector2.one;
                    Vector2 texOffset = Vector2.zero;

                    // 检查不同的可能贴图属性名
                    if (instanceMaterial.HasProperty("_MainTex"))
                    {
                        mainTexture = instanceMaterial.GetTexture("_MainTex");
                        texScale = instanceMaterial.GetTextureScale("_MainTex");
                        texOffset = instanceMaterial.GetTextureOffset("_MainTex");
                        Debug.Log(
                            $"从材质 {instanceMaterial.name} 的 _MainTex 找到主贴图, Scale:{texScale}, Offset:{texOffset}");
                    }
                    else if (instanceMaterial.HasProperty("_BaseMap"))
                    {
                        mainTexture = instanceMaterial.GetTexture("_BaseMap");
                        texScale = instanceMaterial.GetTextureScale("_BaseMap");
                        texOffset = instanceMaterial.GetTextureOffset("_BaseMap");
                        Debug.Log(
                            $"从材质 {instanceMaterial.name} 的 _BaseMap 找到主贴图, Scale:{texScale}, Offset:{texOffset}");
                    }
                    else if (instanceMaterial.HasProperty("_AlbedoMap"))
                    {
                        mainTexture = instanceMaterial.GetTexture("_AlbedoMap");
                        texScale = instanceMaterial.GetTextureScale("_AlbedoMap");
                        texOffset = instanceMaterial.GetTextureOffset("_AlbedoMap");
                        Debug.Log(
                            $"从材质 {instanceMaterial.name} 的 _AlbedoMap 找到主贴图, Scale:{texScale}, Offset:{texOffset}");
                    }
                    else if (instanceMaterial.HasProperty("_DiffuseMap"))
                    {
                        mainTexture = instanceMaterial.GetTexture("_DiffuseMap");
                        texScale = instanceMaterial.GetTextureScale("_DiffuseMap");
                        texOffset = instanceMaterial.GetTextureOffset("_DiffuseMap");
                        Debug.Log(
                            $"从材质 {instanceMaterial.name} 的 _DiffuseMap 找到主贴图, Scale:{texScale}, Offset:{texOffset}");
                    }

                    // 记录原始颜色
                    Color baseColor = Color.white;
                    if (instanceMaterial.HasProperty("_Color"))
                    {
                        baseColor = instanceMaterial.GetColor("_Color");
                    }
                    else if (instanceMaterial.HasProperty("_BaseColor"))
                    {
                        baseColor = instanceMaterial.GetColor("_BaseColor");
                    }

                    // 应用新Shader
                    instanceMaterial.shader = lightmapShader;

                    // 恢复主贴图到_BaseMap (这是Lightmap shader使用的属性名)
                    if (mainTexture != null)
                    {
                        if (instanceMaterial.HasProperty("_BaseMap"))
                        {
                            instanceMaterial.SetTexture("_BaseMap", mainTexture);
                            instanceMaterial.SetTextureScale("_BaseMap", texScale);
                            instanceMaterial.SetTextureOffset("_BaseMap", texOffset);
                            Debug.Log(
                                $"将主贴图设置到 {instanceMaterial.name} 的 _BaseMap, 并设置Scale:{texScale}, Offset:{texOffset}");
                        }

                        // 同时尝试设置旧属性以兼容
                        if (instanceMaterial.HasProperty("_MainTex"))
                        {
                            instanceMaterial.SetTexture("_MainTex", mainTexture);
                            instanceMaterial.SetTextureScale("_MainTex", texScale);
                            instanceMaterial.SetTextureOffset("_MainTex", texOffset);
                        }
                    }
                    else
                    {
                        Debug.LogWarning($"材质 {instanceMaterial.name} 没有找到可用的主贴图");
                    }

                    // 设置颜色
                    if (instanceMaterial.HasProperty("_BaseColor"))
                    {
                        instanceMaterial.SetColor("_BaseColor", baseColor);
                    }

                    if (instanceMaterial.HasProperty("_Color"))
                    {
                        instanceMaterial.SetColor("_Color", baseColor);
                    }

                    replacedCount++;
                    Debug.Log($"已替换材质 {instanceMaterial.name} 的Shader: {originalShaderName} -> NLD_Scene_Lightmap");
                }

                // 将新材质添加到映射表中
                processedMaterialMap[originalMaterial] = instanceMaterial;
                newMaterials[i] = instanceMaterial;
            }

            // 应用新材质数组
            renderer.sharedMaterials = newMaterials;
        }

        Debug.Log($"完成Shader替换，共处理了 {replacedCount} 个材质");
    }

    // 恢复原始材质（地面材质除外）
    private void RestoreOriginalMaterials()
    {
        Debug.Log("开始恢复非地面原始材质...");

        int restoredCount = 0;

        // 遍历所有需要恢复的渲染器
        foreach (var renderer in renderersToRestore)
        {
            if (renderer == null || !originalMaterials.ContainsKey(renderer))
                continue;

            // 检查是否是地面渲染器，地面渲染器的材质不需要恢复
            bool isGroundRenderer = false;
            Transform parent = renderer.transform.parent;
            while (parent != null)
            {
                if (groundRoot.Contains(parent.name) ||
                    (PostProcessInstructor.ground != null &&
                     (parent == PostProcessInstructor.ground.transform ||
                      renderer.gameObject == PostProcessInstructor.ground)))
                {
                    isGroundRenderer = true;
                    Debug.Log($"跳过地面渲染器材质恢复: {renderer.name}");
                    break;
                }

                parent = parent.parent;
            }

            if (isGroundRenderer)
                continue;

            // 获取原始材质数组
            Material[] originalMaterialsArray = originalMaterials[renderer];

            // 恢复原始材质
            renderer.sharedMaterials = originalMaterialsArray;
            restoredCount++;
        }

        Debug.Log($"已恢复 {restoredCount} 个非地面渲染器的原始材质");

        // 清空材质映射和渲染器列表，释放内存
        originalMaterials.Clear();
        renderersToRestore.Clear();
    }

    // 递归查找子节点的辅助方法
    private Transform FindChildRecursive(Transform parent, string childName)
    {
        // 首先检查直接子节点
        Transform child = parent.Find(childName);
        if (child != null)
            return child;

        // 如果直接子节点中没找到，递归查找每个子节点
        for (int i = 0; i < parent.childCount; i++)
        {
            child = FindChildRecursive(parent.GetChild(i), childName);
            if (child != null)
                return child;
        }

        return null;
    }

    #endregion
}