using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Reflection;
using System.Text;
using UnityEditor;
using UnityEditor.AddressableAssets;
using UnityEditor.AddressableAssets.Settings;
using UnityEngine;
using BaseGames.Core.Assets;

namespace BaseGames.Editor
{
    /// <summary>
    /// Addressable 批量注册工具
    /// 菜单：BaseGames → Tools → Addressable Batch Tool  (Alt+Shift+A)
    ///
    /// 三种工作流：
    ///   ① 同步 AddressKeys  — 读取 AddressKeys.cs 中的常量，按名称在 Project 中搜索对应资产并自动注册
    ///   ② 文件夹批量注册   — 拖入文件夹，将其下所有指定类型的资产注册到选定分组，地址格式可配置
    ///   ③ 选中资产注册     — 在 Project 窗口选中资产后，一键批量注册到选定分组
    /// </summary>
    public class AddressableBatchTool : EditorWindow
    {
        // ── 常量 ─────────────────────────────────────────────────────────────
        private const string Title     = "Addressable 批量工具";
        private const string MenuPath  = "BaseGames/Addressables/Addressable Batch Tool";
        private const string PrefsKey  = "AddressableBatch.";

        // ── 状态 ─────────────────────────────────────────────────────────────
        private int    _tab;
        private string[] _tabNames = { "① 同步 AddressKeys", "② 文件夹批量注册", "③ 选中资产注册" };

        // Tab ①
        private List<KeySyncEntry> _keyEntries;
        private Vector2            _keyScrollPos;
        private bool               _onlyShowMissing   = true;
        private bool               _autoSearch        = true;  // 自动按名称搜索资产
        private bool               _autoGroupByPrefix = true;  // 按 Key 前缀自动选/建分组

        // Key 前缀 → 分组名称映射（Tab ① 自动分组用）
        // 规范数据统一来自 AddressableRules，此处不再声明本地副本。

        // Tab ②
        private DefaultAsset      _folderAsset;
        private string            _folderPath;
        private bool              _includeSubfolders = true;
        private AddressFormat     _addressFormat     = AddressFormat.FileName;
        private string            _addressPrefix     = "";
        private string[]          _assetTypeFilters  = { "*.prefab", "*.unity", "*.asset" };
        private bool              _filterPrefab      = true;
        private bool              _filterScene       = true;
        private bool              _filterSO          = true;
        private bool              _filterTexture;
        private bool              _filterAudio;
        private List<FolderEntry> _folderEntries;
        private Vector2           _folderScrollPos;

        // Tab ③
        private List<SelectionEntry> _selectionEntries;
        private Vector2              _selectionScrollPos;

        // 共用
        private int           _targetGroupIndex;
        private string[]      _groupNames;
        private string        _newGroupName = "New Group";
        private string        _newLabel     = "";
        private bool          _overwriteAddress;

        // ── 样式（惰性初始化）────────────────────────────────────────────────
        private GUIStyle _headerStyle;
        private GUIStyle _okStyle;
        private GUIStyle _warnStyle;
        private GUIStyle _boldStyle;
        private bool     _stylesInitialized;

        // ─────────────────────────────────────────────────────────────────────
        [MenuItem(MenuPath, priority = 200)]
        [MenuItem("BaseGames/Addressables/Open Addressable Batch Tool", priority = 250)]
        public static void OpenWindow()
        {
            var win = GetWindow<AddressableBatchTool>(Title);
            win.minSize = new Vector2(600, 460);
            win.Show();
        }

        // ══ GUI ══════════════════════════════════════════════════════════════

        private void OnGUI()
        {
            InitStyles();

            if (AddressableAssetSettingsDefaultObject.Settings == null)
            {
                EditorGUILayout.HelpBox(
                    "Addressable Settings 未初始化。\n" +
                    "请先执行 Window → Asset Management → Addressables → Groups → Create Addressables Settings。",
                    MessageType.Error);
                return;
            }

            RefreshGroupNames();

            EditorGUILayout.Space(4);
            _tab = GUILayout.Toolbar(_tab, _tabNames, GUILayout.Height(28));
            EditorGUILayout.Space(4);

            switch (_tab)
            {
                case 0: DrawSyncTab();      break;
                case 1: DrawFolderTab();    break;
                case 2: DrawSelectionTab(); break;
            }

            EditorGUILayout.Space(4);
            DrawSharedOptions();
        }

        // ══ Tab ① 同步 AddressKeys ═══════════════════════════════════════════

        private void DrawSyncTab()
        {
            EditorGUILayout.LabelField("根据 AddressKeys.cs 中的常量，自动搜索匹配资产并注册到 Addressables。", EditorStyles.wordWrappedMiniLabel);
            EditorGUILayout.Space(4);

            using (new EditorGUILayout.HorizontalScope())
            {
                _onlyShowMissing   = GUILayout.Toggle(_onlyShowMissing,   "仅显示未注册项",   GUILayout.Width(140));
                _autoSearch        = GUILayout.Toggle(_autoSearch,        "自动按文件名搜索", GUILayout.Width(140));
                _autoGroupByPrefix = GUILayout.Toggle(_autoGroupByPrefix, "按前缀自动分组",   GUILayout.Width(120));
                GUILayout.FlexibleSpace();
                if (GUILayout.Button("刷新列表", GUILayout.Width(80)))
                    RefreshKeyEntries();
                if (GUILayout.Button("注册所有已匹配项", GUILayout.Width(120)))
                    RegisterAllMatchedKeys();
            }

            if (_keyEntries == null)
                RefreshKeyEntries();

            EditorGUILayout.Space(4);

            // 列表表头
            using (new EditorGUILayout.HorizontalScope(EditorStyles.toolbar))
            {
                EditorGUILayout.LabelField("常量名",       _boldStyle, GUILayout.Width(200));
                EditorGUILayout.LabelField("地址 Key",     _boldStyle, GUILayout.Width(180));
                EditorGUILayout.LabelField("状态",         _boldStyle, GUILayout.Width(100));
                EditorGUILayout.LabelField("匹配资产",     _boldStyle);
            }

            var displayList = _onlyShowMissing
                ? _keyEntries.Where(e => !e.IsRegistered).ToList()
                : _keyEntries;

            _keyScrollPos = EditorGUILayout.BeginScrollView(_keyScrollPos, GUILayout.ExpandHeight(true));

            foreach (var entry in displayList)
            {
                using (new EditorGUILayout.HorizontalScope(GUILayout.Height(20)))
                {
                    EditorGUILayout.LabelField(entry.FieldName,  GUILayout.Width(200));
                    EditorGUILayout.LabelField(entry.AddressKey, GUILayout.Width(180));

                    if (entry.IsRegistered)
                    {
                        EditorGUILayout.LabelField("✅ 已注册", _okStyle,   GUILayout.Width(100));
                        EditorGUILayout.LabelField(entry.ExistingAssetPath ?? "—");
                    }
                    else if (entry.FoundAssetPath != null)
                    {
                        EditorGUILayout.LabelField("⚠ 未注册", _warnStyle, GUILayout.Width(100));
                        EditorGUILayout.LabelField(entry.FoundAssetPath, GUILayout.ExpandWidth(true));
                        if (GUILayout.Button("注册", GUILayout.Width(50)))
                            RegisterKeyEntry(entry);
                    }
                    else
                    {
                        EditorGUILayout.LabelField("❌ 未找到", _warnStyle, GUILayout.Width(100));
                        entry.ManualAsset = (UnityEngine.Object)EditorGUILayout.ObjectField(
                            entry.ManualAsset, typeof(UnityEngine.Object), false);
                        if (entry.ManualAsset != null)
                        {
                            if (GUILayout.Button("注册", GUILayout.Width(50)))
                                RegisterKeyEntryManual(entry);
                        }
                    }
                }
            }

            EditorGUILayout.EndScrollView();

            EditorGUILayout.Space(4);
            var total     = _keyEntries.Count;
            var registered = _keyEntries.Count(e => e.IsRegistered);
            var matched    = _keyEntries.Count(e => !e.IsRegistered && e.FoundAssetPath != null);
            EditorGUILayout.LabelField(
                $"总计 {total} 个 Key | 已注册 {registered} | 已搜索到但未注册 {matched} | 未找到 {total - registered - matched}",
                EditorStyles.miniLabel);
        }

        // ══ Tab ② 文件夹批量注册 ═════════════════════════════════════════════

        private void DrawFolderTab()
        {
            EditorGUILayout.LabelField("将指定文件夹中所有符合条件的资产批量注册到 Addressables。", EditorStyles.wordWrappedMiniLabel);
            EditorGUILayout.Space(4);

            // 文件夹选择
            using (new EditorGUILayout.HorizontalScope())
            {
                _folderAsset = (DefaultAsset)EditorGUILayout.ObjectField(
                    "目标文件夹", _folderAsset, typeof(DefaultAsset), false);
                if (_folderAsset != null)
                    _folderPath = AssetDatabase.GetAssetPath(_folderAsset);
            }

            if (!string.IsNullOrEmpty(_folderPath) && !AssetDatabase.IsValidFolder(_folderPath))
            {
                EditorGUILayout.HelpBox("请拖入一个文件夹（蓝色图标），不是文件。", MessageType.Warning);
                _folderPath = null;
            }

            _includeSubfolders = EditorGUILayout.Toggle("包含子文件夹", _includeSubfolders);

            // 资产类型筛选
            EditorGUILayout.LabelField("资产类型筛选", EditorStyles.boldLabel);
            using (new EditorGUILayout.HorizontalScope())
            {
                _filterPrefab  = GUILayout.Toggle(_filterPrefab,  "Prefab",   GUILayout.Width(70));
                _filterScene   = GUILayout.Toggle(_filterScene,   "Scene",    GUILayout.Width(70));
                _filterSO      = GUILayout.Toggle(_filterSO,      "SO/Asset", GUILayout.Width(80));
                _filterTexture = GUILayout.Toggle(_filterTexture, "Texture",  GUILayout.Width(70));
                _filterAudio   = GUILayout.Toggle(_filterAudio,   "Audio",    GUILayout.Width(70));
            }

            // 地址格式
            _addressFormat = (AddressFormat)EditorGUILayout.EnumPopup("地址格式", _addressFormat);
            if (_addressFormat == AddressFormat.PrefixPlusFileName ||
                _addressFormat == AddressFormat.PrefixPlusRelativePath)
            {
                _addressPrefix = EditorGUILayout.TextField("地址前缀", _addressPrefix);
            }

            EditorGUILayout.Space(4);

            using (new EditorGUILayout.HorizontalScope())
            {
                GUILayout.FlexibleSpace();
                GUI.enabled = !string.IsNullOrEmpty(_folderPath);
                if (GUILayout.Button("扫描文件夹", GUILayout.Width(100)))
                    ScanFolder();
                GUI.enabled = _folderEntries != null && _folderEntries.Count > 0;
                if (GUILayout.Button("注册所有", GUILayout.Width(100)))
                    RegisterAllFolderEntries();
                GUI.enabled = true;
            }

            if (_folderEntries == null || _folderEntries.Count == 0)
            {
                EditorGUILayout.HelpBox("拖入文件夹后点击「扫描文件夹」。", MessageType.Info);
                return;
            }

            EditorGUILayout.Space(4);
            using (new EditorGUILayout.HorizontalScope(EditorStyles.toolbar))
            {
                EditorGUILayout.LabelField("资产路径",   _boldStyle, GUILayout.ExpandWidth(true));
                EditorGUILayout.LabelField("预计地址",   _boldStyle, GUILayout.Width(200));
                EditorGUILayout.LabelField("状态",       _boldStyle, GUILayout.Width(80));
            }

            _folderScrollPos = EditorGUILayout.BeginScrollView(_folderScrollPos, GUILayout.ExpandHeight(true));
            foreach (var entry in _folderEntries)
            {
                using (new EditorGUILayout.HorizontalScope(GUILayout.Height(18)))
                {
                    EditorGUILayout.LabelField(entry.AssetPath, GUILayout.ExpandWidth(true));
                    entry.Address = EditorGUILayout.TextField(entry.Address, GUILayout.Width(200));
                    var label = entry.AlreadyRegistered ? "✅ 已有" : "待注册";
                    var style = entry.AlreadyRegistered ? _okStyle : EditorStyles.miniLabel;
                    EditorGUILayout.LabelField(label, style, GUILayout.Width(80));
                }
            }
            EditorGUILayout.EndScrollView();

            int newCount = _folderEntries.Count(e => !e.AlreadyRegistered);
            EditorGUILayout.LabelField($"共 {_folderEntries.Count} 个资产，{newCount} 个待注册", EditorStyles.miniLabel);
        }

        // ══ Tab ③ 选中资产注册 ════════════════════════════════════════════════

        private void DrawSelectionTab()
        {
            EditorGUILayout.LabelField("在 Project 窗口中选中资产或文件夹，然后点击「读取选中项」。", EditorStyles.wordWrappedMiniLabel);
            EditorGUILayout.Space(4);

            using (new EditorGUILayout.HorizontalScope())
            {
                GUILayout.FlexibleSpace();
                if (GUILayout.Button("读取选中项", GUILayout.Width(110)))
                    LoadSelection();
                GUI.enabled = _selectionEntries != null && _selectionEntries.Count > 0;
                if (GUILayout.Button("注册所有", GUILayout.Width(100)))
                    RegisterAllSelectionEntries();
                GUI.enabled = true;
            }

            if (_selectionEntries == null || _selectionEntries.Count == 0)
            {
                EditorGUILayout.HelpBox("在 Project 窗口选中资产后点击「读取选中项」。", MessageType.Info);
                return;
            }

            EditorGUILayout.Space(4);
            using (new EditorGUILayout.HorizontalScope(EditorStyles.toolbar))
            {
                EditorGUILayout.LabelField("资产路径",  _boldStyle, GUILayout.ExpandWidth(true));
                EditorGUILayout.LabelField("注册地址",  _boldStyle, GUILayout.Width(200));
                EditorGUILayout.LabelField("状态",      _boldStyle, GUILayout.Width(80));
            }

            _selectionScrollPos = EditorGUILayout.BeginScrollView(_selectionScrollPos, GUILayout.ExpandHeight(true));
            foreach (var entry in _selectionEntries)
            {
                using (new EditorGUILayout.HorizontalScope(GUILayout.Height(18)))
                {
                    EditorGUILayout.LabelField(entry.AssetPath, GUILayout.ExpandWidth(true));
                    entry.Address = EditorGUILayout.TextField(entry.Address, GUILayout.Width(200));
                    var label = entry.AlreadyRegistered ? "✅ 已有" : "待注册";
                    var style = entry.AlreadyRegistered ? _okStyle : EditorStyles.miniLabel;
                    EditorGUILayout.LabelField(label, style, GUILayout.Width(80));
                }
            }
            EditorGUILayout.EndScrollView();

            int newCount = _selectionEntries.Count(e => !e.AlreadyRegistered);
            EditorGUILayout.LabelField($"共 {_selectionEntries.Count} 项，{newCount} 待注册", EditorStyles.miniLabel);
        }

        // ══ 共用选项区 ════════════════════════════════════════════════════════

        private void DrawSharedOptions()
        {
            EditorGUILayout.LabelField("── 注册选项 ──", EditorStyles.boldLabel);
            using (new EditorGUILayout.HorizontalScope())
            {
                EditorGUILayout.LabelField("目标分组", GUILayout.Width(70));
                if (_groupNames != null && _groupNames.Length > 0)
                {
                    _targetGroupIndex = EditorGUILayout.Popup(_targetGroupIndex,
                        _groupNames, GUILayout.Width(200));
                }

                EditorGUILayout.Space(8);
                EditorGUILayout.LabelField("标签", GUILayout.Width(30));
                _newLabel = EditorGUILayout.TextField(_newLabel, GUILayout.Width(120));
                GUILayout.Label("（留空则不添加标签）", EditorStyles.miniLabel);
                GUILayout.FlexibleSpace();
            }

            using (new EditorGUILayout.HorizontalScope())
            {
                _overwriteAddress = GUILayout.Toggle(_overwriteAddress, "已注册的资产也覆盖地址");
                GUILayout.FlexibleSpace();
                if (GUILayout.Button("新建分组…", GUILayout.Width(100)))
                    ShowCreateGroupDialog();
            }
        }

        // ══ 逻辑：Tab ① ══════════════════════════════════════════════════════

        private void RefreshKeyEntries()
        {
            _keyEntries = new List<KeySyncEntry>();
            var settings = AddressableAssetSettingsDefaultObject.Settings;
            if (settings == null) return;

            // 收集所有已注册地址 → 地址字符串 → 资产路径
            var registeredMap = new Dictionary<string, string>(StringComparer.Ordinal);
            foreach (var group in settings.groups)
            {
                if (group == null) continue;
                foreach (var e in group.entries)
                    if (e != null) registeredMap[e.address] = e.AssetPath;
            }

            // 遍历 AddressKeys 常量
            var fields = typeof(AddressKeys)
                .GetFields(BindingFlags.Public | BindingFlags.Static | BindingFlags.FlattenHierarchy)
                .Where(f => f.IsLiteral && !f.IsInitOnly && f.FieldType == typeof(string));

            foreach (var field in fields)
            {
                var key     = (string)field.GetRawConstantValue();
                var entry   = new KeySyncEntry { FieldName = field.Name, AddressKey = key };

                if (registeredMap.TryGetValue(key, out string existingPath))
                {
                    entry.IsRegistered      = true;
                    entry.ExistingAssetPath = existingPath;
                }
                else if (_autoSearch)
                {
                    // 从地址 key 派生搜索名：取最后一段，去掉前缀（ENM_、VFX_ 等）
                    string searchName = DeriveName(key);
                    string[] guids    = AssetDatabase.FindAssets(searchName);
                    if (guids.Length > 0)
                    {
                        // 优先取名称完全匹配的；排除文件夹、脚本及程序集定义文件
                        string best = guids
                            .Select(AssetDatabase.GUIDToAssetPath)
                            .Where(p => !AssetDatabase.IsValidFolder(p) && IsAddressableAssetPath(p))
                            .OrderBy(p => ExactNameMatch(p, searchName) ? 0 : 1)
                            .FirstOrDefault();
                        entry.FoundAssetPath = best;
                        entry.FoundGuid      = best != null ? AssetDatabase.AssetPathToGUID(best) : null;
                    }
                }

                _keyEntries.Add(entry);
            }
        }

        private void RegisterKeyEntry(KeySyncEntry entry)
        {
            if (entry.FoundAssetPath == null) return;
            string groupOverride = _autoGroupByPrefix ? DeriveGroupName(entry.AddressKey) : null;
            Register(entry.FoundGuid, entry.AddressKey, groupOverride);
            entry.IsRegistered      = true;
            entry.ExistingAssetPath = entry.FoundAssetPath;
            entry.FoundAssetPath    = null;
            SaveSettings();
        }

        private void RegisterKeyEntryManual(KeySyncEntry entry)
        {
            string path = AssetDatabase.GetAssetPath(entry.ManualAsset);
            string guid = AssetDatabase.AssetPathToGUID(path);
            string groupOverride = _autoGroupByPrefix ? DeriveGroupName(entry.AddressKey) : null;
            Register(guid, entry.AddressKey, groupOverride);
            entry.IsRegistered      = true;
            entry.ExistingAssetPath = path;
            entry.ManualAsset       = null;
            SaveSettings();
        }

        private void RegisterAllMatchedKeys()
        {
            int count = 0;
            foreach (var entry in _keyEntries.Where(e => !e.IsRegistered && e.FoundAssetPath != null))
            {
                string groupOverride = _autoGroupByPrefix ? DeriveGroupName(entry.AddressKey) : null;
                Register(entry.FoundGuid, entry.AddressKey, groupOverride);
                entry.IsRegistered      = true;
                entry.ExistingAssetPath = entry.FoundAssetPath;
                entry.FoundAssetPath    = null;
                count++;
            }
            Debug.Log($"[AddressableBatch] 已注册 {count} 个 AddressKeys 条目。");
            SaveSettings();
        }

        // ══ 逻辑：Tab ② ══════════════════════════════════════════════════════

        private void ScanFolder()
        {
            _folderEntries = new List<FolderEntry>();
            if (!AssetDatabase.IsValidFolder(_folderPath)) return;

            var settings       = AddressableAssetSettingsDefaultObject.Settings;
            var registeredGuids = CollectRegisteredGuids(settings);

            var filters = BuildSearchFilter();
            var option  = _includeSubfolders
                ? SearchOption.AllDirectories
                : SearchOption.TopDirectoryOnly;

            string absFolder = Path.GetFullPath(_folderPath);

            foreach (string filter in filters)
            {
                foreach (string absPath in Directory.GetFiles(absFolder, filter, option))
                {
                    string relPath = "Assets" + absPath.Substring(Application.dataPath.Length).Replace('\\', '/');
                    string guid    = AssetDatabase.AssetPathToGUID(relPath);
                    if (string.IsNullOrEmpty(guid)) continue;

                    _folderEntries.Add(new FolderEntry
                    {
                        AssetPath         = relPath,
                        Guid              = guid,
                        Address           = BuildAddress(relPath),
                        AlreadyRegistered = registeredGuids.Contains(guid),
                    });
                }
            }

            // 去重（多个 filter 可能匹配同一文件）
            _folderEntries = _folderEntries
                .GroupBy(e => e.Guid)
                .Select(g => g.First())
                .ToList();
        }

        private void RegisterAllFolderEntries()
        {
            int count = 0;
            foreach (var entry in _folderEntries)
            {
                if (entry.AlreadyRegistered && !_overwriteAddress) continue;
                Register(entry.Guid, entry.Address);
                entry.AlreadyRegistered = true;
                count++;
            }
            Debug.Log($"[AddressableBatch] 文件夹批量注册完成，共注册 {count} 个资产。");
            SaveSettings();
        }

        // ══ 逻辑：Tab ③ ══════════════════════════════════════════════════════

        private void LoadSelection()
        {
            _selectionEntries = new List<SelectionEntry>();
            var settings       = AddressableAssetSettingsDefaultObject.Settings;
            var registeredGuids = CollectRegisteredGuids(settings);

            foreach (string guid in Selection.assetGUIDs)
            {
                string path = AssetDatabase.GUIDToAssetPath(guid);

                if (AssetDatabase.IsValidFolder(path))
                {
                    // 展开文件夹
                    foreach (string sub in AssetDatabase.FindAssets("", new[] { path }))
                    {
                        string subPath = AssetDatabase.GUIDToAssetPath(sub);
                        if (!AssetDatabase.IsValidFolder(subPath))
                            AddSelectionEntry(sub, subPath, registeredGuids);
                    }
                }
                else
                {
                    AddSelectionEntry(guid, path, registeredGuids);
                }
            }

            _selectionEntries = _selectionEntries
                .GroupBy(e => e.Guid)
                .Select(g => g.First())
                .ToList();
        }

        private void AddSelectionEntry(string guid, string path, HashSet<string> registeredGuids)
        {
            _selectionEntries.Add(new SelectionEntry
            {
                AssetPath         = path,
                Guid              = guid,
                Address           = BuildAddress(path),
                AlreadyRegistered = registeredGuids.Contains(guid),
            });
        }

        private void RegisterAllSelectionEntries()
        {
            int count = 0;
            foreach (var entry in _selectionEntries)
            {
                if (entry.AlreadyRegistered && !_overwriteAddress) continue;
                Register(entry.Guid, entry.Address);
                entry.AlreadyRegistered = true;
                count++;
            }
            Debug.Log($"[AddressableBatch] 选中资产注册完成，共注册 {count} 个资产。");
            SaveSettings();
        }

        // ══ 核心注册 API ═════════════════════════════════════════════════════

        private void Register(string guid, string address, string groupNameOverride = null)
        {
            if (string.IsNullOrEmpty(guid)) return;

            var settings = AddressableAssetSettingsDefaultObject.Settings;
            var group    = groupNameOverride != null
                ? GetOrCreateGroup(settings, groupNameOverride)
                : GetTargetGroup(settings);
            if (group == null) return;

            AddressableAssetEntry entry = settings.FindAssetEntry(guid) ??
                                          settings.CreateOrMoveEntry(guid, group, false, false);

            if (entry == null) return;

            if (_overwriteAddress || entry.address != address)
                entry.address = address;

            settings.MoveEntry(entry, group, false, false);

            if (!string.IsNullOrWhiteSpace(_newLabel))
                entry.SetLabel(_newLabel.Trim(), true, true);
        }

        private AddressableAssetGroup GetOrCreateGroup(AddressableAssetSettings settings, string groupName)
        {
            var existing = settings.groups.FirstOrDefault(g => g != null && g.name == groupName);
            if (existing != null) return existing;

            var template = settings.GroupTemplateObjects.FirstOrDefault() as AddressableAssetGroupTemplate;
            var newGroup = settings.CreateGroup(groupName, false, false, true,
                template != null ? new List<AddressableAssetGroupSchema>(template.SchemaObjects) : null);

            if (newGroup != null)
            {
                RefreshGroupNames();
                Debug.Log($"[AddressableBatch] 已自动创建分组：{groupName}");
            }
            return newGroup ?? settings.DefaultGroup;
        }

        private AddressableAssetGroup GetTargetGroup(AddressableAssetSettings settings)
        {
            RefreshGroupNames();
            if (_groupNames == null || _groupNames.Length == 0) return settings.DefaultGroup;
            string name = _groupNames[Mathf.Clamp(_targetGroupIndex, 0, _groupNames.Length - 1)];
            return settings.groups.FirstOrDefault(g => g != null && g.name == name)
                   ?? settings.DefaultGroup;
        }

        private static void SaveSettings()
        {
            AssetDatabase.SaveAssets();
            AddressableAssetSettingsDefaultObject.Settings?.SetDirty(
                AddressableAssetSettings.ModificationEvent.EntryModified, null, true);
        }

        // ══ 创建分组 ══════════════════════════════════════════════════════════

        private void ShowCreateGroupDialog()
        {
            _newGroupName = EditorInputDialog.Show("新建 Addressable 分组", "请输入分组名称：", _newGroupName);
            if (string.IsNullOrWhiteSpace(_newGroupName)) return;

            var settings  = AddressableAssetSettingsDefaultObject.Settings;
            var template  = settings.GroupTemplateObjects.FirstOrDefault() as AddressableAssetGroupTemplate;
            var newGroup  = settings.CreateGroup(_newGroupName.Trim(), false, false, true,
                template != null ? new List<AddressableAssetGroupSchema>(template.SchemaObjects) : null);

            if (newGroup != null)
            {
                Debug.Log($"[AddressableBatch] 已创建分组：{newGroup.name}");
                RefreshGroupNames();
                _targetGroupIndex = Array.IndexOf(_groupNames, newGroup.name);
            }
        }

        // ══ 辅助 ══════════════════════════════════════════════════════════════

        private void RefreshGroupNames()
        {
            var settings = AddressableAssetSettingsDefaultObject.Settings;
            if (settings == null) { _groupNames = Array.Empty<string>(); return; }
            _groupNames = settings.groups
                .Where(g => g != null)
                .Select(g => g.name)
                .ToArray();
            _targetGroupIndex = Mathf.Clamp(_targetGroupIndex, 0, Mathf.Max(0, _groupNames.Length - 1));
        }

        private static HashSet<string> CollectRegisteredGuids(AddressableAssetSettings settings)
        {
            var set = new HashSet<string>(StringComparer.Ordinal);
            if (settings == null) return set;
            foreach (var group in settings.groups)
            {
                if (group == null) continue;
                foreach (var e in group.entries)
                    if (e != null) set.Add(e.guid);
            }
            return set;
        }

        private string BuildAddress(string assetPath)
        {
            string fileName = Path.GetFileNameWithoutExtension(assetPath);
            return _addressFormat switch
            {
                AddressFormat.FileName              => fileName,
                AddressFormat.FullAssetPath         => assetPath,
                AddressFormat.RelativeToFolder      => MakeRelativePath(assetPath, _folderPath),
                AddressFormat.PrefixPlusFileName    => _addressPrefix + fileName,
                AddressFormat.PrefixPlusRelativePath=> _addressPrefix + MakeRelativePath(assetPath, _folderPath),
                _                                   => fileName,
            };
        }

        private static string MakeRelativePath(string assetPath, string baseFolderPath)
        {
            if (string.IsNullOrEmpty(baseFolderPath)) return assetPath;
            return assetPath.StartsWith(baseFolderPath)
                ? assetPath.Substring(baseFolderPath.Length).TrimStart('/')
                : assetPath;
        }

        private List<string> BuildSearchFilter()
        {
            var list = new List<string>();
            if (_filterPrefab)  list.Add("*.prefab");
            if (_filterScene)   list.Add("*.unity");
            if (_filterSO)      list.Add("*.asset");
            if (_filterTexture) { list.Add("*.png"); list.Add("*.jpg"); list.Add("*.tga"); }
            if (_filterAudio)   { list.Add("*.mp3"); list.Add("*.wav"); list.Add("*.ogg"); }
            if (list.Count == 0) list.Add("*.*");
            return list;
        }

        /// <summary>从 AddressKey（如 "ENM_GruntWarrior"）派生搜索名（"GruntWarrior"）。</summary>
        private static string DeriveName(string key)
        {
            // 取最后一个 '/' 之后的部分（Config/FootstepCatalog → FootstepCatalog）
            int slash = key.LastIndexOf('/');
            string last = slash >= 0 ? key.Substring(slash + 1) : key;

            // 去掉前缀（ENM_, VFX_, PROJ_ 等）：找第一个 '_' 并截断前缀
            int underscore = last.IndexOf('_');
            return underscore >= 0 && underscore < last.Length - 1
                ? last.Substring(underscore + 1)
                : last;
        }

        /// <summary>根据 AddressKey 前缀返回建议分组名，未匹配时返回 null（回退到手动选定分组）。</summary>
        private static string DeriveGroupName(string key)
            => AddressableRules.GetExpectedGroup(key);

        private static bool ExactNameMatch(string assetPath, string searchName)
        {
            string name = Path.GetFileNameWithoutExtension(assetPath);
            return string.Equals(name, searchName, StringComparison.OrdinalIgnoreCase);
        }

        /// <summary>
        /// 判断路径是否为可寻址资产（排除脚本、程序集定义、Shader 等代码文件）。
        /// </summary>
        private static bool IsAddressableAssetPath(string path)
        {
            string ext = Path.GetExtension(path);
            if (string.IsNullOrEmpty(ext)) return false;
            // 排除代码 / 元数据类文件
            return ext != ".cs"
                && ext != ".asmdef"
                && ext != ".asmref"
                && ext != ".shader"
                && ext != ".hlsl"
                && ext != ".cginc"
                && ext != ".glsl"
                && ext != ".json"
                && ext != ".xml"
                && ext != ".txt"
                && ext != ".md";
        }

        private void InitStyles()
        {
            if (_stylesInitialized) return;
            _headerStyle = new GUIStyle(EditorStyles.boldLabel)  { fontSize = 14 };
            _okStyle     = new GUIStyle(EditorStyles.miniLabel)  { normal = { textColor = new Color(0.2f, 0.8f, 0.2f) } };
            _warnStyle   = new GUIStyle(EditorStyles.miniLabel)  { normal = { textColor = new Color(1f, 0.6f, 0.1f) } };
            _boldStyle   = new GUIStyle(EditorStyles.miniLabel)  { fontStyle = FontStyle.Bold };
            _stylesInitialized = true;
        }

        // ══ 数据结构 ══════════════════════════════════════════════════════════

        private class KeySyncEntry
        {
            public string                FieldName;
            public string                AddressKey;
            public bool                  IsRegistered;
            public string                ExistingAssetPath;
            public string                FoundAssetPath;
            public string                FoundGuid;
            public UnityEngine.Object    ManualAsset;
        }

        private class FolderEntry
        {
            public string AssetPath;
            public string Guid;
            public string Address;
            public bool   AlreadyRegistered;
        }

        private class SelectionEntry
        {
            public string AssetPath;
            public string Guid;
            public string Address;
            public bool   AlreadyRegistered;
        }

        private enum AddressFormat
        {
            [InspectorName("文件名（推荐）")]       FileName,
            [InspectorName("完整 Asset 路径")]       FullAssetPath,
            [InspectorName("相对于选定文件夹")]      RelativeToFolder,
            [InspectorName("前缀 + 文件名")]         PrefixPlusFileName,
            [InspectorName("前缀 + 相对路径")]       PrefixPlusRelativePath,
        }
    }

    // ── 轻量输入对话框（避免依赖 EditorInputDialog 插件）─────────────────────
    internal static class EditorInputDialog
    {
        /// <summary>弹出单行文本输入对话框。返回用户输入，取消则返回原始默认值。</summary>
        public static string Show(string title, string message, string defaultValue = "")
        {
            string result = defaultValue;

            // 通过简单的 EditorWindow 实现
            var win = ScriptableObject.CreateInstance<InputDialogWindow>();
            win.Init(title, message, defaultValue, v => { result = v; });
            win.ShowModal();

            return result;
        }
    }

    internal class InputDialogWindow : EditorWindow
    {
        private string _title;
        private string _message;
        private string _value;
        private Action<string> _onConfirm;

        public void Init(string title, string message, string defaultValue, Action<string> onConfirm)
        {
            titleContent = new GUIContent(title);
            _title      = title;
            _message    = message;
            _value      = defaultValue;
            _onConfirm  = onConfirm;
            minSize     = maxSize = new Vector2(340, 110);
        }

        private void OnGUI()
        {
            EditorGUILayout.Space(8);
            EditorGUILayout.LabelField(_message);
            GUI.SetNextControlName("input");
            _value = EditorGUILayout.TextField(_value);
            EditorGUI.FocusTextInControl("input");

            EditorGUILayout.Space(8);
            using (new EditorGUILayout.HorizontalScope())
            {
                GUILayout.FlexibleSpace();
                if (GUILayout.Button("取消", GUILayout.Width(70)))
                    Close();
                if (GUILayout.Button("确认", GUILayout.Width(70)))
                {
                    _onConfirm?.Invoke(_value);
                    Close();
                }
            }
        }
    }
}