using System.Collections.Generic;
using System.IO;
using UnityEngine;
using UnityEditor;
using UnityEditor.SceneManagement;
using UnityEngine.SceneManagement;
using UnityEngine.Rendering;

/// <summary>
/// 场景操作工具类
/// </summary>
public static class SceneUtils
{
    /// <summary>
    /// 递归查找子节点
    /// </summary>
    public static 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;
    }

    /// <summary>
    /// 递归设置GameObject的静态标志
    /// </summary>
    public static void SetStaticFlagsRecursive(GameObject obj, StaticEditorFlags flags)
    {
        // 设置当前物体的静态标志
        GameObjectUtility.SetStaticEditorFlags(obj, flags);

        // 递归设置所有子物体
        for (int i = 0; i < obj.transform.childCount; i++)
        {
            Transform child = obj.transform.GetChild(i);
            SetStaticFlagsRecursive(child.gameObject, flags);
        }
    }

    /// <summary>
    /// 给地面添加BoxCollider
    /// </summary>
    public static void AddBoxColliderToGround(GameObject ground)
    {
        if (ground != null)
        {
            Object.DestroyImmediate(ground.GetComponent<Collider>());
            var boxCollider = ground.gameObject.AddComponent<BoxCollider>();
            boxCollider.size = new Vector3(1, 1, 1);
            boxCollider.center = new Vector3(0, 0, 0.5f);

            EditorSceneManager.MarkSceneDirty(ground.gameObject.scene);
            EditorSceneManager.SaveOpenScenes();
            AssetDatabase.Refresh();
        }
        else
        {
            Debug.LogError("地面节点不存在，无法添加BoxCollider");
        }
    }

    /// <summary>
    /// 设置地面渲染队列
    /// </summary>
    public static void SetGroundRenderQueue(GameObject ground, int renderQueue)
    {
        if (ground != null)
        {
            GameObjectUtility.SetStaticEditorFlags(ground, StaticEditorFlags.ContributeGI);
            var renderer = ground.GetComponent<Renderer>();
            if (renderer != null)
            {
                renderer.shadowCastingMode = ShadowCastingMode.Off;
                var materials = renderer.sharedMaterials;
                foreach (var material in materials)
                {
                    if (material != null)
                    {
                        renderer.shadowCastingMode = ShadowCastingMode.Off;
                        material.renderQueue = renderQueue;
                        Debug.Log($"将地面的材质 {material.name} 的RenderQueue改为{renderQueue}");
                    }
                }
            }

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

    /// <summary>
    /// 解包预制体
    /// </summary>
    public static void UnpackPrefab(GameObject obj)
    {
        if (obj != null && PrefabUtility.IsPartOfPrefabInstance(obj))
        {
            Debug.Log($"解包场景{obj.scene.name} 的预制体: {obj.name}");

            PrefabUtility.UnpackPrefabInstance(obj,
                PrefabUnpackMode.Completely, InteractionMode.AutomatedAction);

            EditorSceneManager.MarkSceneDirty(obj.scene);
            EditorSceneManager.SaveOpenScenes();

            // 强制刷新
            AssetDatabase.Refresh();
        }
    }

    /// <summary>
    /// 移除Scene中的重复EventSystem
    /// </summary>
    public static void RemoveRedundantEventSystems(Scene scene)
    {
        foreach (var rootObj in scene.GetRootGameObjects())
        {
            UnityEngine.EventSystems.EventSystem[] eventSystems = rootObj.GetComponentsInChildren<UnityEngine.EventSystems.EventSystem>();
            if (null == eventSystems)
                continue;

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

    /// <summary>
    /// 设置雾的位置
    /// </summary>
    public static void SetFogPosition(GameObject 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);
    }

    /// <summary>
    /// 获取标准化的资源路径
    /// </summary>
    public static 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;
    }
}