import 'package:flutter/widgets.dart';

import '../providers/locale_provider.dart';

/// 轻量级国际化助手。
///
/// 覆盖底部导航、首页、设备、门店、管理、设置、激活码、用户、公司介绍等
/// 高频界面文案。后续业务模块继续在此补充。
///
/// 用法：
/// ```dart
/// final t = AppLocalizations.of(context);
/// Text(t.home);
/// ```
class AppLocalizations {
  AppLocalizations(this._locale);

  final AppLocale _locale;

  static AppLocalizations of(BuildContext context) {
    final locale = Localizations.of<AppLocale>(context, AppLocale);
    return AppLocalizations(locale ?? AppLocale.zh);
  }

  String _pick(String zh, String en) => _locale == AppLocale.en ? en : zh;

  /// 当前是否为英文模式。
  bool get isEnglish => _locale == AppLocale.en;

  // ============ 底部导航 ============
  String get home => _pick('首页', 'Home');
  String get devices => _pick('设备', 'Devices');
  String get stores => _pick('门店', 'Stores');
  String get admin => _pick('管理', 'Admin');
  String get profile => _pick('我的', 'Profile');

  // ============ 设置 ============
  String get orientationMode => _pick('显示方向', 'Display Orientation');
  String get orientationSystem => _pick('跟随系统', 'System');
  String get orientationPortrait => _pick('竖屏', 'Portrait');
  String get orientationLandscape => _pick('横屏', 'Landscape');

  // ============ 首页 ============
  /// AppBar / 顶部栏大标题。
  String get appTitle => _pick('云定制主页运营平台', '云定制主页运营平台');

  /// 首页品牌横幅 / 登录页主标题。
  String get appHeroTitle => _pick('云定制主页运营助手', '云定制主页运营助手');

  /// 登录页副标题。
  String get appSubtitle => _pick('Mobile Management', 'Mobile Management');
  String get totalDevices => _pick('设备总数', 'Total Devices');
  String get totalStores => _pick('门店总数', 'Total Stores');
  String get onlineDevices => _pick('在线设备', 'Online Devices');
  String get offlineDevices => _pick('离线设备', 'Offline Devices');
  String get quickActions => _pick('快捷操作', 'Quick Actions');
  String get systemManagement => _pick('系统管理', 'System Management');
  String get mediaManagement => _pick('媒资管理', 'Media Management');

  // ============ 通用 ============
  String get loading => _pick('加载中…', 'Loading…');
  String get retry => _pick('重试', 'Retry');
  String get save => _pick('保存', 'Save');
  String get cancel => _pick('取消', 'Cancel');
  String get confirm => _pick('确认', 'Confirm');
  String get reset => _pick('重置', 'Reset');
  String get edit => _pick('编辑', 'Edit');
  String get delete => _pick('删除', 'Delete');
  String get add => _pick('新增', 'Add');
  String get search => _pick('搜索', 'Search');
  String get back => _pick('返回', 'Back');
  String get yes => _pick('是', 'Yes');
  String get no => _pick('否', 'No');
  String get unknown => _pick('未知', 'Unknown');
  String get none => _pick('无', 'None');
  String get notGrouped => _pick('未分组', 'Not Grouped');
  String get all => _pick('全部', 'All');
  String get noData => _pick('暂无数据', 'No data');
  String get noMoreData => _pick('没有更多数据', 'No more data');
  String get saved => _pick('保存成功', 'Saved');
  String get saveFailed => _pick('保存失败', 'Save failed');
  String get deleted => _pick('删除成功', 'Deleted');
  String get deleteFailed => _pick('删除失败', 'Delete failed');
  String get copied => _pick('已复制', 'Copied');
  String get pleaseSelect => _pick('请选择', 'Please select');

  // ============ 设置页 ============
  String get settings => _pick('设置', 'Settings');
  String get themeMode => _pick('主题模式', 'Theme');
  String get language => _pick('语言', 'Language');
  String get changePassword => _pick('修改密码', 'Change Password');
  String get about => _pick('关于', 'About');
  String get logout => _pick('退出登录', 'Log Out');
  String get account => _pick('账号', 'Account');
  String get themeDark => _pick('深色', 'Dark');
  String get themeLight => _pick('浅色', 'Light');
  String get themeSystem => _pick('跟随系统', 'System');
  String get passwordDialogTitle => _pick('修改登录密码', 'Change Login Password');
  String get oldPassword => _pick('原密码', 'Old Password');
  String get newPassword => _pick('新密码', 'New Password');
  String get confirmNewPassword => _pick('确认新密码', 'Confirm New Password');
  String get pleaseFillPassword =>
      _pick('请填写原密码和新密码', 'Please fill in old and new passwords');
  String get passwordsDoNotMatch =>
      _pick('两次输入的新密码不一致', 'New passwords do not match');
  String get passwordChangeSuccess =>
      _pick('密码修改成功，请重新登录', 'Password changed, please log in again');
  String passwordChangeFailed(String error) =>
      _pick('修改失败：$error', 'Change failed: $error');

  // ============ 管理页菜单 ============
  String get deviceManagement => _pick('设备管理', 'Device Management');
  String get activationCode => _pick('激活码', 'Activation Code');
  String get deviceLimit => _pick('设备上限', 'Device Limit');
  String get units => _pick('台', 'Units');
  String get storeConfig => _pick('门店配置', 'Store Config');
  String get userManagement => _pick('用户管理', 'User Management');
  String get companyIntro => _pick('公司介绍', 'Company Intro');

  // ============ 设备管理 ============
  String get deviceList => _pick('设备列表', 'Device List');
  String get deviceDetails => _pick('设备详情', 'Device Details');
  String get searchDeviceHint => _pick('搜索设备MAC / 房号', 'Search MAC / room number');
  String get searchModelHint => _pick('型号', 'Model');
  String get scanQueryDevice => _pick('扫码查询设备', 'Scan to Query');
  String get scanActivateDevice => _pick('扫码激活新设备', 'Scan to Activate');
  String get scanBindDevice => _pick('扫码绑定设备', 'Scan to Bind');
  String get scanTitleActivate => _pick('扫码激活新设备', 'Scan to Activate Device');
  String get scanTitleBind => _pick('扫码绑定设备', 'Scan to Bind Device');
  String get scanTitleQuery => _pick('扫码查询设备', 'Scan to Query Device');
  String get scanHintActivate => _pick('将新设备二维码放入框内以激活',
      'Place the new device QR code in the frame to activate');
  String get scanHintBind => _pick('将二维码放入框内以绑定设备',
      'Place the QR code in the frame to bind the device');
  String get scanHintQuery => _pick('将设备二维码放入框内以查询',
      'Place the device QR code in the frame to query');
  String get cameraPermissionDenied => _pick('未获得相机权限', 'Camera permission denied');
  String get cameraPermissionDeniedHint =>
      _pick('请在系统设置中开启后重试',
          'Please enable camera permission in system settings and try again');
  String get cameraInitializing => _pick('正在初始化相机…', 'Initializing camera…');
  String get cameraUnavailable => _pick('相机不可用', 'Camera unavailable');
  String cameraOpenFailed(String code) =>
      _pick('相机打开失败：$code', 'Failed to open camera: $code');
  String get scanConfirmActivateTitle => _pick('确认激活设备', 'Confirm Device Activation');
  String get scanConfirmBindTitle => _pick('确认绑定', 'Confirm Binding');
  String scanConfirmContent(String storeName, String groupId, String payload) =>
      _pick(
        '将设备绑定到门店「$storeName」'
        '${groupId.isNotEmpty ? ' / 分组 $groupId' : ''}？\n\n'
        '二维码内容：$payload',
        'Bind device to store "$storeName"'
        '${groupId.isNotEmpty ? ' / Group $groupId' : ''}?\n\n'
        'QR code content: $payload',
      );
  String get scanActivate => _pick('激活', 'Activate');
  String get scanBind => _pick('绑定', 'Bind');
  String get scanDeviceNotFound => _pick('未找到设备，请确认二维码内容',
      'Device not found, please check the QR code content');
  String get scanPayloadUnrecognized => _pick(
      '无法识别该二维码，请扫描设备二维码或确认二维码内容',
      'Unrecognized QR code. Please scan a device QR code');
  String scanDeviceNotReady(String identifier) => _pick(
      '未找到对应设备（$identifier）。设备可能尚未联网或同步，请确认设备已开机联网、已激活并归属当前账号后重试',
      'No matching device found ($identifier). The device may not be online or synced yet. Please confirm it is powered on, connected, activated and assigned to this account, then retry');
  String scanQueryFailed(String error) =>
      _pick('查询失败：$error', 'Query failed: $error');
  String scanLoadStoresFailed(String error) =>
      _pick('加载门店失败：$error', 'Failed to load stores: $error');
  String get scanNoStores => _pick('暂无可选门店，请先在门店管理中创建',
      'No stores available. Please create one in Store Management first');
  String get scanSelectStoreTitle => _pick('选择目标门店', 'Select Target Store');
  String get scanActivateSuccess => _pick('设备已激活', 'Device activated');
  String get scanBindSuccess => _pick('设备已绑定', 'Device bound');
  String get scanPayloadNoMac =>
      _pick('未能从二维码中识别到 MAC 地址，请检查二维码内容',
          'Could not find MAC address in QR code');
  String scanLoadGroupsFailed(String error) =>
      _pick('加载分组失败：$error', 'Failed to load groups: $error');
  String scanNoGroups(String storeName) =>
      _pick('门店「$storeName」暂无设备分组，请先在设备分组中创建',
          'Store "$storeName" has no device groups. Please create one first');
  String get scanSelectGroupTitle => _pick('选择目标分组', 'Select Target Group');
  String scanBindFailed(String error) =>
      _pick('绑定失败：$error', 'Binding failed: $error');
  // ============ 扫码绑定表单（页面内表单） ============
  String get scanGroupLabel => _pick('门店分组', 'Store Group');
  String get scanStoreRequired => _pick('请先选择门店', 'Please select a store first');
  String get scanGroupRequired => _pick('请选择门店分组', 'Please select a store group');
  String get scanRoomRequired => _pick('请输入房号', 'Please enter room number');
  String get scanRoomInvalid => _pick(
      '房号格式不正确（仅限中英文、数字、连字符、斜杠，长度 1-20）',
      'Invalid room number (letters/digits/hyphen/slash only, 1-20 chars)');
  // 房号改为选填：标签与提示都标明「选填」，避免用户误以为必填。
  String get roomNoOptional => _pick('房号（选填）', 'Room Number (optional)');
  String get scanRoomHint => _pick('选填，如 801、A101、3楼', 'Optional, e.g. 801, A101, 3rd floor');
  String get scanRescan => _pick('重新扫码', 'Scan Again');
  String get scanFormInvalid =>
      _pick('请完善门店与门店分组后再提交', 'Please complete store and store group');
  String get scanFormDeviceTitle => _pick('已识别设备', 'Recognized Device');
  String get sendCommand => _pick('下发指令', 'Send Command');
  String get editGroup => _pick('修改分组', 'Edit Group');
  String get macAddress => _pick('MAC 地址', 'MAC Address');
  String get ipAddress => _pick('IP 地址', 'IP Address');
  String get belongStore => _pick('所属门店', 'Store');
  String get belongGroup => _pick('所属分组', 'Group');
  String get roomNo => _pick('房号', 'Room No.');
  String deviceModel(String model) => _pick('型号：$model', 'Model: $model');
  String deviceSubtitleStore(String name) => _pick('门店：$name', 'Store: $name');
  String deviceSubtitleMac(String mac) => _pick('MAC：$mac', 'MAC: $mac');
  String deviceSubtitleRoom(String room) => _pick('房号：$room', 'Room: $room');
  String get deviceSubtitleNotSet => _pick('未设置', 'Not set');
  String get location => _pick('位置', 'Location');
  String get operatingSystem => _pick('操作系统', 'OS');
  String get uptime => _pick('运行时长', 'Uptime');
  // ============ 设备详情区块 ============
  String get basicInfo => _pick('基本信息', 'Basic Info');
  String get configParams => _pick('配置参数', 'Config Params');
  String get networkInfo => _pick('网络信息', 'Network Info');
  String get runtimeData => _pick('运行时数据', 'Runtime Data');
  String get deviceName => _pick('设备名称', 'Device Name');
  String get deviceId => _pick('设备 ID', 'Device ID');
  String get modelLabel => _pick('型号', 'Model');
  String get deviceSnLabel => _pick('设备序列号', 'Device SN');
  String get deviceUidLabel => _pick('设备 UID', 'Device UID');
  String get lastActiveTime => _pick('最后活跃时间', 'Last Active Time');
  String get minutesAgo => _pick('分钟前', 'min ago');
  String get cpuUsage => _pick('CPU 使用率', 'CPU Usage');
  String get memoryUsage => _pick('内存使用率', 'Memory Usage');
  String get diskUsage => _pick('磁盘使用率', 'Disk Usage');
  String get networkRxTx => _pick('网络（收/发）', 'Network (Rx/Tx)');
  String get showRuntimeMetrics => _pick('显示运行指标', 'Show Runtime Metrics');
  String get showRuntimeMetricsHint =>
      _pick('开启后在设备详情页展示 CPU、内存、磁盘、网络指标',
          'Show CPU, memory, disk and network metrics on device detail');
  String deviceListLoadFailed(String error) =>
      _pick('设备列表加载失败：$error', 'Failed to load device list: $error');
  String get noMatchedDevices => _pick('没有匹配的设备', 'No matched devices');
  String get allStores => _pick('全部门店', 'All Stores');
  String get selectStore => _pick('选择门店', 'Select Store');
  String get groupId => _pick('所属分组 ID', 'Group ID');
  String get groupIdHint => _pick('填写设备分组标识，如 g-core',
      'Enter device group identifier, e.g. g-core');
  String get saveSuccess => _pick('已保存', 'Saved successfully');
  String get groupListLoading => _pick('加载分组列表…', 'Loading groups…');

  // ============ 设备状态 ============
  String get statusOnline => _pick('在线', 'Online');
  String get statusOffline => _pick('离线', 'Offline');
  String get statusWarning => _pick('告警', 'Warning');
  String get statusNormal => _pick('正常', 'Normal');
  String get statusDisabled => _pick('禁用', 'Disabled');

  String deviceStatusLabel(DeviceStatusKey status) {
    switch (status) {
      case DeviceStatusKey.online:
        return statusOnline;
      case DeviceStatusKey.offline:
        return statusOffline;
      case DeviceStatusKey.warning:
        return statusWarning;
    }
  }

  // ============ 指令下发 ============
  String get sendCommandTitle => _pick('下发指令', 'Send Command');
  String get sendOrgCommandTitle => _pick('下发门店指令', 'Send Store Command');
  String get commandType => _pick('指令类型', 'Command Type');
  String get commandConfirmTitle => _pick('确认下发', 'Confirm Send');
  String commandConfirmContent(String label) =>
      _pick('确定要向该设备下发「$label」指令吗？',
          'Are you sure you want to send the "$label" command?');
  String commandSent(String target, String label) =>
      _pick('已向$target下发「$label」指令（后端已接收，不代表设备已执行）',
          'Command "$label" sent to $target (accepted by server, not yet confirmed by device)');
  String get commandSendFailed => _pick('指令下发失败', 'Failed to send command');
  String get pleaseInput => _pick('请输入', 'Please enter');
  String get volumeRangeHint => _pick('请输入 0~100 的整数音量',
      'Please enter an integer volume between 0 and 100');
  String get maxVolume => _pick('最大音量', 'Max Volume');
  String get commandOfflineWarning =>
      _pick('该设备当前离线（或心跳已超时），指令可能不会立即生效；设备重新上报心跳后才会执行。',
          'This device is offline (or its heartbeat timed out). The command may not take effect immediately; it will run after the device reconnects.');
  String get commandOfflineConfirm => _pick('仍然下发', 'Send Anyway');
  String get commandMacMissing =>
      _pick('该设备缺少 MAC 地址，无法按 MAC 下发指令，请改用门店批量下发。',
          'This device has no MAC address, so a MAC-targeted command cannot be sent. Use store-level delivery instead.');

  String deviceCommandLabel(String cmd) {
    return _pick(
      const {
            'powerOff': '关机',
            'reboot': '重启',
            'screenshot': '截屏',
            'themeUpdate': '主题更新',
            'versionUpdate': '版本更新',
            'marqueeUpdate': '滚动字幕更新',
            'weatherUpdate': '更新天气信息',
            'mediaZoneVol': '媒体区域音量',
            'defaultVol': '默认音量',
            'themeClear': '清除主题缓存',
            'cacheClear': '清除缓存',
            'storeExpire': '门店到期',
            'storeDisable': '门店禁用',
            'passwordUpdate': '修改设置密码',
            'worldAd': '获取世界广告',
          }[cmd] ??
          cmd,
      const {
            'powerOff': 'Power Off',
            'reboot': 'Reboot',
            'screenshot': 'Screenshot',
            'themeUpdate': 'Theme Update',
            'versionUpdate': 'Version Update',
            'marqueeUpdate': 'Marquee Update',
            'weatherUpdate': 'Update Weather',
            'mediaZoneVol': 'Media Zone Volume',
            'defaultVol': 'Default Volume',
            'themeClear': 'Clear Theme Cache',
            'cacheClear': 'Clear Cache',
            'storeExpire': 'Store Expired',
            'storeDisable': 'Store Disabled',
            'passwordUpdate': 'Change Settings Password',
            'worldAd': 'Fetch World Ads',
          }[cmd] ??
          cmd,
    );
  }

  String deviceCommandInputLabel(String cmd) {
    if (cmd == 'passwordUpdate') return _pick('新密码', 'New Password');
    return _pick('音量（0-100）', 'Volume (0-100)');
  }

  // ============ 门店管理 ============
  String get storeManagement => _pick('门店管理', 'Store Management');
  String get storeCommands => _pick('门店指令', 'Store Commands');
  String get searchStoreHint => _pick('搜索门店名称', 'Search store name');
  String get storeDeleteConfirmTitle => _pick('删除门店', 'Delete Store');
  String storeDeleteConfirmContent(String name) =>
      _pick('确定要删除门店「$name」吗？', 'Are you sure you want to delete store "$name"?');
  String get storeDeleted => _pick('门店已删除', 'Store deleted');
  String get loadFailed => _pick('加载失败', 'Load failed');
  String get storeId => _pick('门店ID', 'Store ID');
  String get address => _pick('地址', 'Address');
  String get contactPhone => _pick('联系电话', 'Contact Phone');
  String get expireTime => _pick('到期时间', 'Expire Time');
  String get expired => _pick('已过期', 'Expired');
  String get noExpireTime => _pick('无到期时间', 'No expire date');
  String get createTime => _pick('创建时间', 'Create Time');
  String get storeName => _pick('门店名称', 'Store Name');
  String get storeNameRequired => _pick('请输入门店名称', 'Please enter store name');
  String get region => _pick('所在地区', 'Region');
  String get regionHint => _pick('请选择省 / 市 / 区', 'Please select province / city / district');
  String get addressDetail => _pick('详细地址', 'Detailed Address');
  String get addressDetailHint => _pick('街道 / 门牌号等', 'Street / house number');
  String get interfaceConfig => _pick('界面配置', 'Interface Config');
  String get themeSkin => _pick('主题皮肤', 'Theme Skin');
  String get themeCurrent => _pick('当前', 'Current');
  String get themeUnnamed => _pick('未命名主题', 'Unnamed Theme');
  String get noInterfaceConfig => _pick('当前门店暂无设备分组主题',
      'No device group themes for this store');
  String get editStore => _pick('编辑门店', 'Edit Store');
  String get addStore => _pick('新增门店', 'Add Store');
  String get create => _pick('创建', 'Create');
  String get sampleStore => _pick('示例门店', 'Sample Store');
  String get parentOrg => _pick('所属组织', 'Parent Organization');
  String get parentOrgRequired => _pick('请选择所属组织', 'Please select parent organization');
  String get regionRequired => _pick('请选择所在地区', 'Please select region');
  String get storeUpdatedPlaceholder => _pick('门店已更新（本地占位）',
      'Store updated (local placeholder)');
  String get storeCreatedPlaceholder => _pick('门店已创建（本地占位）',
      'Store created (local placeholder)');

  // ============ 激活码管理 ============
  String get activationCodeManagement => _pick('激活码管理', 'Activation Code Management');
  String get noStoreAvailable => _pick('暂无可选门店', 'No stores available');
  String get pleaseSelectStoreFirst => _pick('请先选择门店', 'Please select a store first');
  String get currentActivationCode => _pick('当前激活码', 'Current Activation Code');
  String get noActivationCode => _pick('暂无激活码信息', 'No activation code info');
  String get generateActivationCode => _pick('生成激活码', 'Generate Activation Code');
  String get resetActivationCode => _pick('重置激活码', 'Reset Activation Code');
  String get resetActivationCodeConfirm => _pick('重置后原激活码将失效，确定要继续吗？',
      'The original code will become invalid after reset. Continue?');
  String get activationCodeGenerated => _pick('激活码已生成', 'Activation code generated');
  String get activationCodeReset => _pick('激活码已重置', 'Activation code reset');
  String get generateFailed => _pick('生成失败', 'Generate failed');
  String get resetFailed => _pick('重置失败', 'Reset failed');
  String get activationCodeResetSuccess =>
      _pick('激活码已重置', 'Activation code reset');
  String activationCodeResetFailed(String error) =>
      _pick('激活码重置失败：$error', 'Activation code reset failed: $error');
  String get maxActivateCount => _pick('最大激活数', 'Max Activations');
  String get activatedCount => _pick('已激活数', 'Activated Count');
  String get copy => _pick('复制', 'Copy');
  String get generate => _pick('生成', 'Generate');
  String get activationCodeCopied => _pick('激活码已复制', 'Activation code copied');
  String get generateActivationCodeHint => _pick(
      '将为当前门店生成新的激活码，原有激活码将被替换。',
      'A new activation code will be generated for this store, replacing the existing one.');
  String activationCodeLoadFailed(String error) =>
      _pick('激活码加载失败：$error', 'Failed to load activation code: $error');
  String generateFailedWithError(String error) =>
      _pick('生成失败：$error', 'Generate failed: $error');
  String get activationCodeNoCodeHint => _pick('无激活码，请点击「生成激活码」',
      'No activation code, please tap "Generate Activation Code"');
  String get maxActivationCountLabel => _pick('最大激活次数', 'Max Activation Count');
  String get maxActivationCountHint => _pick('该激活码最多可激活的设备数量',
      'Maximum number of devices this code can activate');
  String get positiveIntegerRequired => _pick('请输入大于 0 的整数',
      'Please enter an integer greater than 0');

  // 门店表单中的激活码/终端数
  String get terminalCountLabel => _pick('终端数', 'Terminal Count');
  String get terminalCountHint => _pick('该门店允许激活的终端数量', 'Number of terminals allowed');
  String get maxTerminalCount => _pick('最大终端数', 'Max Terminals');
  String get usedTerminalCount => _pick('已用终端数', 'Used Terminals');
  String get createActivationCode => _pick('创建激活码', 'Create Activation Code');
  String get activationCodeWillAutoGenerate => _pick('保存门店后将自动生成激活码',
      'Activation code will be auto-generated after saving the store');
  String get activeActivationCode => _pick('当前激活码', 'Current Activation Code');
  String get noActiveActivationCode => _pick('暂无正在使用的激活码',
      'No activation code currently in use');
  String get activationCodeGenerateHint => _pick('每次点击仅生成一个对应激活码',
      'Each tap generates one activation code');
  String storeSavedActivationFailed(String error) =>
      _pick('门店已保存，但激活码生成失败：$error',
          'Store saved, but activation code generation failed: $error');
  String storeListLoadFailed(String error) =>
      _pick('门店列表加载失败：$error', 'Failed to load store list: $error');

  // ============ 用户管理 ============
  String get username => _pick('用户名', 'Username');
  String get usernameRequired => _pick('请输入用户名', 'Please enter username');
  String get email => _pick('邮箱', 'Email');
  String get mobile => _pick('手机号', 'Mobile');
  String get password => _pick('密码', 'Password');
  String get passwordEditHint => _pick('不修改请留空', 'Leave blank to keep unchanged');
  String get passwordRequired => _pick('请输入密码', 'Please enter password');
  String get confirmPassword => _pick('确认密码', 'Confirm Password');
  String get confirmPasswordHint => _pick('请再次输入密码', 'Please enter the password again');
  String get confirmPasswordRequired => _pick('请输入确认密码', 'Please enter confirm password');
  String get role => _pick('角色', 'Role');
  String get roleRequired => _pick('请选择角色', 'Please select a role');
  String get org => _pick('所属组织', 'Organization');
  String get selectOrg => _pick('请选择所属组织', 'Please select an organization');
  String get noOrgHint => _pick('暂无可选组织，保留原归属',
      'No organizations available, keep original');
  String get status => _pick('状态', 'Status');
  String get unassigned => _pick('未分配', 'Unassigned');
  String get searchUsernameHint => _pick('搜索用户名', 'Search username');
  String get searchOrgHint => _pick('搜索组织名称', 'Search organization name');
  String get noMatchingOrg => _pick('未找到匹配组织', 'No matching organization');
  String get roleLabel => _pick('角色', 'Role');
  String get orgLabel => _pick('所属组织', 'Organization');
  String get currentAccountInfo => _pick('当前账号信息', 'Current Account Info');
  String get passwordNotSaved => _pick('未保存', 'Not saved');
  String get noSubordinateAccount =>
      _pick('当前账号暂无下级账号', 'No subordinate accounts');
  String get showPassword => _pick('显示密码', 'Show password');
  String get hidePassword => _pick('隐藏密码', 'Hide password');
  String get editUser => _pick('编辑用户', 'Edit User');
  String get addUser => _pick('新增用户', 'Add User');
  String get deleteUserConfirmTitle => _pick('确认删除', 'Confirm Delete');
  String deleteUserConfirmContent(String name) =>
      _pick('确定要删除用户「$name」吗？', 'Are you sure you want to delete user "$name"?');
  String get rolesLoadFailed => _pick('角色列表加载失败', 'Failed to load roles');

  // ============ 滚动字幕管理 ============
  String get marqueeManagement => _pick('滚动字幕管理', 'Scrolling Subtitle Management');
  String get addMarquee => _pick('新增滚动字幕', 'Add Scrolling Subtitle');
  String get editMarquee => _pick('编辑滚动字幕', 'Edit Scrolling Subtitle');
  String get marqueeContent => _pick('字幕内容', 'Subtitle Content');
  String get marqueeContentRequired => _pick('请输入字幕内容', 'Please enter subtitle content');
  String get marqueeSpeed => _pick('滚动速度', 'Scroll Speed');
  String get marqueeSpeedHint => _pick('像素/秒，建议 30~120', 'pixels/sec, recommended 30-120');
  String get marqueeSpeedInvalid => _pick('请选择滚动速度', 'Please select scroll speed');
  String get marqueeFontSizeInvalid => _pick('请输入大于 0 的字体大小', 'Please enter a font size greater than 0');
  String get marqueeSpeedSlow => _pick('慢', 'Slow');
  String get marqueeSpeedSlower => _pick('较慢', 'Slower');
  String get marqueeSpeedMedium => _pick('中', 'Medium');
  String get marqueeSpeedFaster => _pick('较快', 'Faster');
  String get marqueeSpeedFast => _pick('快', 'Fast');
  String get marqueeGradeDanger => _pick('危险', 'Danger');
  String get marqueeGradeUrgent => _pick('紧急', 'Urgent');
  String get marqueeGradeNormal => _pick('普通', 'Normal');
  String get targetStore => _pick('目标门店', 'Target Store');
  String get filterByStore => _pick('按门店筛选', 'Filter by Store');
  String get searchMarqueeHint => _pick('搜索字幕内容或门店', 'Search subtitle content or store');
  String get noMarqueeData => _pick('暂无滚动字幕', 'No scrolling subtitles');
  String get marqueeStatus => _pick('状态', 'Status');
  String get marqueeStatusEnabled => _pick('启用', 'Enabled');
  String get marqueeStatusDisabled => _pick('禁用', 'Disabled');
  String get marqueeStatusPending => _pick('待下发', 'Pending');
  String get marqueeStatusDispatched => _pick('已下发', 'Dispatched');
  String get dispatch => _pick('下发', 'Dispatch');
  String get cancelDispatch => _pick('取消下发', 'Cancel Dispatch');
  String get marqueeDispatched => _pick('字幕已下发', 'Subtitle dispatched');
  String get marqueeDispatchFailed => _pick('字幕下发失败', 'Failed to dispatch subtitle');
  String get marqueeDispatchCancelled => _pick('已取消下发', 'Dispatch cancelled');
  String get marqueeCancelFailed => _pick('取消下发失败', 'Failed to cancel dispatch');
  String get marqueeFontColor => _pick('字体颜色', 'Font Color');
  String get marqueeBackgroundColor => _pick('背景颜色', 'Background Color');
  String get marqueeFontSize => _pick('字体大小', 'Font Size');
  String get marqueeLevel => _pick('级别', 'Level');
  String get marqueeStartTime => _pick('开始时间', 'Start Time');
  String get marqueeEndTime => _pick('结束时间', 'End Time');
  String get marqueeHour => _pick('时', 'Hour');
  String get marqueeMinute => _pick('分', 'Minute');
  String get marqueeSecond => _pick('秒', 'Second');
  String get marqueeContentPreview => _pick('字幕内容', 'Subtitle Content');

  // ============ 公司介绍 ============
  String get introCategoryTitle => _pick('公司介绍', 'Company Intro');
  String get introStoreFilter => _pick('门店名称', 'Store Name');
  String get introAllStores => _pick('全部门店', 'All Stores');
  String get introCategoryName => _pick('名称', 'Name');
  String get introCategoryTypeCode => _pick('类型编码', 'Type Code');
  String get introCategoryEdit => _pick('编辑大类', 'Edit Category');
  String get introCategoryAdd => _pick('新增大类', 'Add Category');
  String get introSubcategoryEdit => _pick('编辑小类', 'Edit Subcategory');
  String get introSubcategoryAdd => _pick('新增小类', 'Add Subcategory');
  String get introDetailEdit => _pick('编辑内容', 'Edit Content');
  String get introDetailAdd => _pick('新增内容', 'Add Content');
  String get introTitle => _pick('标题', 'Title');
  String get introTitleRequired => _pick('请输入标题', 'Please enter the title');
  String get introDescription => _pick('描述', 'Description');
  String get introMediaType => _pick('媒体类型', 'Media Type');
  String get introMediaUrl => _pick('媒体地址', 'Media URL');
  String get introMediaUrlRequired =>
      _pick('请上传或填写媒体地址', 'Please upload or enter the media URL');
  String get introImage => _pick('图片', 'Image');
  String get introVideo => _pick('视频', 'Video');
  String get introTypeLabel => _pick('类型', 'Type');
  String get introStoreLabel => _pick('门店', 'Store');
  String get introFilterStores => _pick('筛选门店', 'Filter Stores');
  String get introSelectStoresHint => _pick('可多选门店', 'Select multiple stores');
  String get introCategoryStore => _pick('所属门店', 'Store');
  String get introStoreRequired => _pick('请选择所属门店', 'Please select a store');
  String get introCategoryNameRequired =>
      _pick('请输入名称', 'Please enter the name');
  String get introCategoryTypeRequired =>
      _pick('请输入类型编码', 'Please enter the type code');
  String get introCategoryTypeNoChinese =>
      _pick('类型编码禁止包含中文', 'Type code must not contain Chinese characters');
  String get introStoreLoadFailed =>
      _pick('门店列表加载失败，请下拉刷新后重试', 'Failed to load stores, please refresh and retry');
  String get introSortOrder => _pick('排序号', 'Sort Order');
  String get introEnabled => _pick('启用', 'Enabled');
  String get introDisabled => _pick('禁用', 'Disabled');
  String get introUploadImage => _pick('上传图片', 'Upload Image');
  String get introPickImage => _pick('选择图片', 'Pick Image');
  String get introImagePreview => _pick('图片预览', 'Image Preview');
  String get introUploading => _pick('上传中…', 'Uploading…');
  String get introUploadFailed => _pick('图片上传失败', 'Image upload failed');
  String get introInsertImage => _pick('插入图片', 'Insert Image');
  String get introSubImageHint =>
      _pick('图片不超过 300KB，建议分辨率 1920×1080', 'Image ≤ 300KB, suggested 1920×1080');
  String get introDetailImageHint => _pick('图片不超过 3MB', 'Image ≤ 3MB');
  String get introDetailVideoHint => _pick('视频不超过 30MB', 'Video ≤ 30MB');
  String get introImageTypeInvalid =>
      _pick('请上传 jpg、png、gif 或 webp 图片', 'Please upload jpg, png, gif or webp image');
  String get introVideoTypeInvalid =>
      _pick('请上传 mp4、webm、mov 或 m4v 视频', 'Please upload mp4, webm, mov or m4v video');
  String get introFileTooLarge => _pick('文件大小超过限制', 'File exceeds the size limit');

  // ============ 地区选择器 ============
  String get selectProvince => _pick('选择省份', 'Select Province');
  String get selectCity => _pick('选择城市', 'Select City');
  String get selectDistrict => _pick('选择区县', 'Select District');
  String get selectRegion => _pick('选择地区', 'Select Region');
  String get previousLevel => _pick('上一级', 'Previous');

  // ============ 运行时长 ============
  String formatUptime(int seconds) {
    final duration = Duration(seconds: seconds);
    final days = duration.inDays;
    final hours = duration.inHours % 24;
    final minutes = duration.inMinutes % 60;

    final parts = <String>[];
    if (days > 0) parts.add('$days${_pick('天', 'd')}');
    if (hours > 0) parts.add('$hours${_pick('小时', 'h')}');
    if (minutes > 0 || parts.isEmpty) {
      parts.add('$minutes${_pick('分', 'm')}');
    }
    return parts.join(' ');
  }

  // ============ 通用状态/操作（后置兼容） ============
  String get noOrgId => _pick('该门店缺少组织 ID，无法下发指令',
      'This store lacks an organization ID and cannot receive commands');

  // ============ 通用删除确认 ============
  String get confirmDelete => _pick('确认删除', 'Confirm Delete');
  String deleteConfirmContent(String name) =>
      _pick('确定要删除「$name」吗？', 'Are you sure you want to delete "$name"?');

  // ============ 渠道商管理 ============
  String get channelManagement => _pick('渠道商管理', 'Channel Management');
  String get addChannel => _pick('新增渠道', 'Add Channel');
  String get editChannel => _pick('编辑渠道商', 'Edit Channel');
  String get addSubChannel => _pick('新增子级', 'Add Child');
  String get channelName => _pick('名称', 'Name');
  String get channelType => _pick('类型', 'Type');
  String get channelSort => _pick('排序', 'Sort');
  String get channelStatus => _pick('状态', 'Status');
  String get channelContactPhone => _pick('联系电话', 'Contact Phone');
  String get channelAddress => _pick('地址', 'Address');
  String get channelOrgCode => _pick('组织编码', 'Org Code');
  String get channelTypeChannel => _pick('渠道', 'Channel');
  String get channelTypeAgent => _pick('代理', 'Agent');
  String get channelEnabled => _pick('启用', 'Enabled');
  String get channelDisabled => _pick('禁用', 'Disabled');
  String get channelParent => _pick('上级', 'Parent');
  String get channelNameRequired => _pick('请输入名称', 'Please enter a name');
  String get searchChannelHint => _pick('搜索渠道/代理商名称', 'Search channel/agent name');
  String get channelDetail => _pick('渠道详情', 'Channel Detail');
  String get channelExpireTime => _pick('到期时间', 'Expire Time');
  String get channelCannotDeleteWithChildren =>
      _pick('存在子集时不允许删除', 'Cannot delete a node that has children');
  String get channelFilterStatus => _pick('状态', 'Status');
  String get channelSwipeToDelete => _pick('左滑删除', 'Swipe left to delete');

  // ============ 渠道版本管理 ============
  /// 渠道/代理节点下钻的 App 版本管理入口。
  String get channelVersionManage => _pick('版本管理', 'Version');
  String get versionName => _pick('版本名', 'Version Name');
  String get versionCode => _pick('版本号', 'Version Code');
  String get downloadUrlHint => _pick('下载地址', 'Download URL');
  String get forceUpdate => _pick('强制更新', 'Force Update');
  String get showPopup => _pick('弹窗提示', 'Popup');
  String get forceUpdateYes => _pick('是', 'Yes');
  String get forceUpdateNo => _pick('否', 'No');
  String get addVersion => _pick('新增版本', 'Add Version');
  String get editVersion => _pick('编辑版本', 'Edit Version');
  String get versionNameRequired => _pick('请输入版本名', 'Please enter a version name');
  String get versionCodeRequired =>
      _pick('请输入正整数版本号', 'Please enter a positive integer version code');
  String get versionUrlRequired => _pick('请输入下载地址', 'Please enter a download URL');
  String get versionUrlInvalid =>
      _pick('请输入以 http(s) 开头的下载地址', 'URL must start with http(s)');
  String get versionDeleteConfirm => _pick(
      '确定删除该版本配置？删除后可重新新增。',
      'Delete this version config? You can add it again afterward.');
  String get versionDeleted => _pick('版本已删除', 'Version deleted');
  String get uploadFile => _pick('上传文件', 'Upload');
  String get uploading => _pick('上传中…', 'Uploading…');
  String get uploadSuccess => _pick('文件上传成功', 'Uploaded');
  String get uploadFailed => _pick('文件上传失败', 'Upload failed');
  String get pleaseSelectApk => _pick('请选择 .apk 文件', 'Please select an .apk file');

  // ============ 版本更新 ============
  String get checkUpdate => _pick('检查更新', 'Check Update');
  String get updateAvailable => _pick('发现新版本', 'Update Available');
  String get currentVersion => _pick('当前版本', 'Current');
  String get latestVersion => _pick('最新版本', 'Latest');
  String get downloadUrl => _pick('下载地址', 'Download');
  String get updateNow => _pick('立即更新', 'Update Now');
  String get updateLater => _pick('稍后', 'Later');
  String get updateNoNew => _pick('已是最新版本', 'Already up to date');
  String get updateOpenFailed => _pick('无法打开下载地址', 'Failed to open download link');
}

/// 设备状态键（避免在模型层引入 BuildContext）。
enum DeviceStatusKey { online, offline, warning }