feat(auth): 添加启动认证功能
- 在本地化文件中添加认证相关的多语言支持 - 实现密码验证逻辑和锁定机制 - 创建登录页面UI组件 - 集成路由保护，未认证用户自动重定向到登录页 - 支持密码错误次数限制和倒计时锁定功能
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191
lib/features/auth/pages/login_page.dart
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191
lib/features/auth/pages/login_page.dart
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import 'package:flutter/material.dart';
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import 'package:flutter/services.dart';
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import 'package:flutter_riverpod/flutter_riverpod.dart';
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import '../../../core/localization/app_localizations.dart';
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import '../../../core/theme/app_theme.dart';
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import '../providers/auth_provider.dart';
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/// 启动密码验证页面
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class LoginPage extends ConsumerStatefulWidget {
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const LoginPage({super.key});
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@override
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ConsumerState<LoginPage> createState() => _LoginPageState();
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}
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class _LoginPageState extends ConsumerState<LoginPage> {
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final _passwordCtrl = TextEditingController();
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final _focusNode = FocusNode();
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String? _errorMsg;
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bool _submitting = false;
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@override
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void initState() {
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super.initState();
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WidgetsBinding.instance.addPostFrameCallback((_) {
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_focusNode.requestFocus();
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});
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}
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@override
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void dispose() {
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_passwordCtrl.dispose();
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_focusNode.dispose();
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super.dispose();
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}
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Future<void> _submit() async {
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if (_submitting) return;
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final password = _passwordCtrl.text.trim();
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if (password.isEmpty) return;
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setState(() {
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_submitting = true;
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_errorMsg = null;
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});
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final success = await ref.read(authProvider.notifier).verify(password);
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if (!mounted) return;
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_passwordCtrl.clear();
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if (!success) {
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final l10n = AppLocalizations.of(context);
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setState(() {
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_submitting = false;
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_errorMsg = l10n?.passwordError ?? '密码错误';
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});
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}
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}
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void _onKeyEvent(KeyEvent event) {
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if (event is KeyDownEvent &&
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event.logicalKey == LogicalKeyboardKey.enter) {
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_submit();
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}
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}
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@override
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Widget build(BuildContext context) {
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final l10n = AppLocalizations.of(context);
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final authState = ref.watch(authProvider);
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final isLocked = authState.isLocked;
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final lockSeconds = authState.lockSecondsRemaining;
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return Scaffold(
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backgroundColor: AppTheme.bgPage,
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body: Center(
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child: Container(
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constraints: const BoxConstraints(maxWidth: 420),
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padding: const EdgeInsets.all(32),
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decoration: BoxDecoration(
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color: AppTheme.bgSurface,
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borderRadius: BorderRadius.circular(AppTheme.radiusLg),
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border: Border.all(color: AppTheme.borderLight),
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boxShadow: AppTheme.shadowCard,
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),
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child: Column(
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mainAxisSize: MainAxisSize.min,
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children: [
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// 设备名称标识
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Icon(
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Icons.shield_outlined,
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size: 48,
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color: AppTheme.primaryColor,
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),
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const SizedBox(height: 16),
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Text(
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l10n?.authTitle ?? '身份验证',
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style: TextStyle(
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color: AppTheme.textHeading,
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fontSize: 22,
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fontWeight: FontWeight.w600,
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),
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),
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const SizedBox(height: 8),
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Text(
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l10n?.authSubtitle ?? '请输入操作员密码以继续使用',
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style: TextStyle(
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color: AppTheme.textSecondary,
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fontSize: 14,
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),
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),
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const SizedBox(height: 32),
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// 密码输入框
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KeyboardListener(
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focusNode: FocusNode(),
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onKeyEvent: _onKeyEvent,
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child: TextField(
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controller: _passwordCtrl,
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focusNode: _focusNode,
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obscureText: true,
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enabled: !isLocked && !_submitting,
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decoration: InputDecoration(
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labelText: l10n?.enterPassword ?? '请输入密码',
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border: const OutlineInputBorder(),
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errorText: _errorMsg,
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prefixIcon: const Icon(Icons.lock_outline),
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),
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),
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),
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const SizedBox(height: 24),
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// 确认按钮 / 锁定提示
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if (isLocked)
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Column(
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children: [
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Icon(Icons.lock_clock,
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size: 32, color: AppTheme.warningColor),
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const SizedBox(height: 8),
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Text(
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l10n?.lockCountdown(lockSeconds) ??
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'请等待 $lockSeconds 秒后重试',
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style: TextStyle(
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color: AppTheme.warningColor,
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fontSize: 14,
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fontWeight: FontWeight.w500,
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),
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),
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],
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)
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else
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SizedBox(
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width: double.infinity,
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child: ElevatedButton(
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onPressed: _submitting ? null : _submit,
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style: ElevatedButton.styleFrom(
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padding: const EdgeInsets.symmetric(vertical: 14),
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),
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child: _submitting
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? const SizedBox(
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width: 20,
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height: 20,
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child: CircularProgressIndicator(
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strokeWidth: 2,
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color: Colors.white,
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),
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)
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: Text(l10n?.confirm ?? '确认'),
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),
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),
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// 剩余尝试次数提示
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if (!isLocked && authState.remainingAttempts < 5)
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Padding(
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padding: const EdgeInsets.only(top: 12),
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child: Text(
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l10n?.remainingAttempts(authState.remainingAttempts) ??
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'剩余 ${authState.remainingAttempts} 次尝试机会',
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style: TextStyle(
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color: AppTheme.errorColor,
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fontSize: 12,
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),
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),
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),
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],
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),
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),
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),
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);
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}
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}
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