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

public class GlobalSceneFontReplacer
{
    [MenuItem("Tools/全项目场景 + Prefab 替换字体")]
    static void ReplaceFontInAllScenesAndPrefabs()
    {
        string fontPath = "Assets/BowArrow/Fonts/HarmonyOS_Sans_SC_Regular.ttf";
        Font newFont = AssetDatabase.LoadAssetAtPath<Font>(fontPath);
        if (newFont == null)
        {
            Debug.LogError("找不到目标字体！");
            return;
        }

        int totalChanges = 0;

        // ✅ 替换所有 prefab
        string[] prefabGuids = AssetDatabase.FindAssets("t:Prefab");
        foreach (string guid in prefabGuids)
        {
            string assetPath = AssetDatabase.GUIDToAssetPath(guid);
            GameObject obj = AssetDatabase.LoadAssetAtPath<GameObject>(assetPath);
            if (obj == null) continue;

            Text[] texts = obj.GetComponentsInChildren<Text>(true);
            bool changed = false;
            foreach (Text text in texts)
            {
                if (text.font != null && text.font.name == "Arial")
                {
                    Undo.RecordObject(text, "Replace Font");
                    text.font = newFont;
                    EditorUtility.SetDirty(text);
                    changed = true;
                    totalChanges++;
                }
            }

            if (changed)
            {
                PrefabUtility.SavePrefabAsset(obj);
                AssetDatabase.SaveAssets();
            }
        }

        // ✅ 替换所有场景
        string[] sceneGuids = AssetDatabase.FindAssets("t:Scene");
        foreach (string guid in sceneGuids)
        {
            string scenePath = AssetDatabase.GUIDToAssetPath(guid);
            var scene = EditorSceneManager.OpenScene(scenePath, OpenSceneMode.Single);
            bool changed = false;

            foreach (GameObject root in scene.GetRootGameObjects())
            {
                Text[] texts = root.GetComponentsInChildren<Text>(true);
                foreach (Text text in texts)
                {
                    if (text.font != null && text.font.name == "Arial")
                    {
                        Undo.RecordObject(text, "Replace Font");
                        text.font = newFont;
                        EditorUtility.SetDirty(text);
                        changed = true;
                        totalChanges++;
                    }
                }
            }

            if (changed)
            {
                EditorSceneManager.MarkSceneDirty(scene);
                EditorSceneManager.SaveScene(scene);
            }
        }

        Debug.Log($"✅ 场景 + Prefab 字体替换完成，共替换 {totalChanges} 个 Text 字体。");
    }
}