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2025-11-17 14:09:17 +08:00
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client/lib/features/writing/screens/writing_home_screen.dart Normal file
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import 'package:flutter/material.dart';
import 'package:flutter_riverpod/flutter_riverpod.dart';
import '../../auth/providers/auth_provider.dart';
import '../widgets/writing_mode_card.dart';
import '../models/writing_task.dart';
import '../models/writing_record.dart';
import '../providers/writing_provider.dart';
import 'exam_writing_screen.dart';
/// 写作练习主页面
class WritingHomeScreen extends ConsumerStatefulWidget {
const WritingHomeScreen({super.key});
@override
ConsumerState<WritingHomeScreen> createState() => _WritingHomeScreenState();
}
class _WritingHomeScreenState extends ConsumerState<WritingHomeScreen> {
bool _statsForceRefresh = false;
@override
Widget build(BuildContext context) {
return Scaffold(
backgroundColor: const Color(0xFFF5F5F5),
appBar: AppBar(
backgroundColor: Colors.transparent,
elevation: 0,
leading: IconButton(
icon: const Icon(Icons.arrow_back, color: Colors.black87),
onPressed: () => Navigator.of(context).pop(),
),
title: const Text(
'写作练习',
style: TextStyle(
color: Colors.black87,
fontSize: 18,
fontWeight: FontWeight.w600,
),
),
centerTitle: true,
),
body: SingleChildScrollView(
child: Padding(
padding: const EdgeInsets.all(16),
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
_buildWritingModes(),
const SizedBox(height: 20),
_buildExamWriting(context),
const SizedBox(height: 20),
_buildRecentWritings(),
const SizedBox(height: 20),
_buildWritingProgress(),
const SizedBox(height: 100), // 底部导航栏空间
],
),
),
),
);
}
Widget _buildWritingModes() {
return Container(
padding: const EdgeInsets.all(20),
decoration: BoxDecoration(
color: Colors.white,
borderRadius: BorderRadius.circular(16),
boxShadow: [
BoxShadow(
color: Colors.black.withOpacity(0.05),
blurRadius: 10,
offset: const Offset(0, 2),
),
],
),
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
const Text(
'写作模式',
style: TextStyle(
fontSize: 18,
fontWeight: FontWeight.bold,
),
),
const SizedBox(height: 16),
Row(
children: [
Expanded(
child: WritingModeCard(
title: '议论文写作',
subtitle: '观点论述练习',
icon: Icons.article,
color: const Color(0xFF2196F3),
type: WritingType.essay,
),
),
const SizedBox(width: 16),
Expanded(
child: WritingModeCard(
title: '应用文写作',
subtitle: '实用文体练习',
icon: Icons.email,
color: const Color(0xFF4CAF50),
type: WritingType.email,
),
),
],
),
const SizedBox(height: 16),
Row(
children: [
Expanded(
child: WritingModeCard(
title: '初级练习',
subtitle: '基础写作训练',
icon: Icons.school,
color: const Color(0xFFFF9800),
difficulty: WritingDifficulty.beginner,
),
),
const SizedBox(width: 16),
Expanded(
child: WritingModeCard(
title: '高级练习',
subtitle: '进阶写作挑战',
icon: Icons.star,
color: const Color(0xFFF44336),
difficulty: WritingDifficulty.advanced,
),
),
],
),
],
),
);
}
Widget _buildExamWriting(BuildContext context) {
return Container(
padding: const EdgeInsets.all(20),
decoration: BoxDecoration(
color: Colors.white,
borderRadius: BorderRadius.circular(16),
boxShadow: [
BoxShadow(
color: Colors.black.withOpacity(0.05),
blurRadius: 10,
offset: const Offset(0, 2),
),
],
),
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
const Text(
'考试写作',
style: TextStyle(
fontSize: 18,
fontWeight: FontWeight.bold,
),
),
const SizedBox(height: 16),
GridView.count(
shrinkWrap: true,
physics: const NeverScrollableScrollPhysics(),
crossAxisCount: 2,
crossAxisSpacing: 12,
mainAxisSpacing: 12,
childAspectRatio: 2.5,
children: [
_buildExamCard(context, '四六级', Icons.school, Colors.blue, ExamType.cet),
_buildExamCard(context, '考研', Icons.menu_book, Colors.red, ExamType.kaoyan),
_buildExamCard(context, '托福', Icons.flight_takeoff, Colors.green, ExamType.toefl),
_buildExamCard(context, '雅思', Icons.language, Colors.purple, ExamType.ielts),
],
),
],
),
);
}
Widget _buildExamCard(BuildContext context, String title, IconData icon, Color color, ExamType examType) {
return InkWell(
onTap: () {
Navigator.push(
context,
MaterialPageRoute(
builder: (context) => ExamWritingScreen(
examType: examType,
title: title,
),
),
);
},
borderRadius: BorderRadius.circular(8),
child: Container(
padding: const EdgeInsets.all(12),
decoration: BoxDecoration(
color: color.withOpacity(0.1),
borderRadius: BorderRadius.circular(8),
),
child: Row(
children: [
Icon(
icon,
color: color,
size: 24,
),
const SizedBox(width: 8),
Expanded(
child: Text(
title,
style: TextStyle(
fontSize: 14,
fontWeight: FontWeight.w500,
color: color,
),
),
),
],
),
),
);
}
Widget _buildRecentWritings() {
final user = ref.watch(currentUserProvider);
final userId = user?.id?.toString() ?? '';
final historyAsync = ref.watch(userWritingHistoryProvider(userId));
return Container(
padding: const EdgeInsets.all(20),
decoration: BoxDecoration(
color: Colors.white,
borderRadius: BorderRadius.circular(16),
boxShadow: [
BoxShadow(
color: Colors.black.withOpacity(0.05),
blurRadius: 10,
offset: const Offset(0, 2),
),
],
),
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
Row(
mainAxisAlignment: MainAxisAlignment.spaceBetween,
children: [
const Text(
'最近写作',
style: TextStyle(
fontSize: 18,
fontWeight: FontWeight.bold,
),
),
const SizedBox.shrink(),
],
),
const SizedBox(height: 16),
historyAsync.when(
data: (records) {
if (records.isEmpty) {
return Center(
child: Column(
mainAxisAlignment: MainAxisAlignment.center,
children: [
Icon(
Icons.edit_note,
size: 48,
color: Colors.grey[400],
),
const SizedBox(height: 12),
Text(
'还没有完成的写作',
style: TextStyle(
fontSize: 14,
color: Colors.grey[600],
),
),
const SizedBox(height: 8),
Text(
'完成一篇写作练习后，记录会显示在这里',
style: TextStyle(
fontSize: 12,
color: Colors.grey[500],
),
textAlign: TextAlign.center,
),
],
),
);
}
return Column(
children: records.take(3).map((record) {
// 将WritingSubmission转换为WritingRecord显示
final writingRecord = WritingRecord(
id: record.id,
taskId: record.taskId,
taskTitle: '写作任务',
taskDescription: '',
content: record.content,
wordCount: record.wordCount,
timeUsed: record.timeSpent,
score: record.score?.totalScore.toInt() ?? 0,
feedback: record.feedback?.toJson(),
completedAt: record.submittedAt,
);
return Padding(
padding: const EdgeInsets.only(bottom: 12),
child: _buildWritingRecordItem(writingRecord),
);
}).toList(),
);
},
loading: () => const Center(
child: Padding(
padding: EdgeInsets.all(20.0),
child: CircularProgressIndicator(),
),
),
error: (error, stack) => Container(
padding: const EdgeInsets.all(20),
child: Column(
children: [
Icon(
Icons.error_outline,
size: 48,
color: Colors.grey[400],
),
const SizedBox(height: 12),
Text(
'加载失败',
style: TextStyle(
fontSize: 14,
color: Colors.grey[600],
),
),
const SizedBox(height: 8),
TextButton(
onPressed: () {
ref.invalidate(userWritingHistoryProvider(userId));
},
child: const Text('重试'),
),
],
),
),
),
],
),
);
}
Widget _buildWritingRecordItem(WritingRecord record) {
return Container(
padding: const EdgeInsets.all(12),
decoration: BoxDecoration(
color: Colors.grey[50],
borderRadius: BorderRadius.circular(8),
),
child: Row(
children: [
Container(
width: 40,
height: 40,
decoration: BoxDecoration(
color: const Color(0xFF2196F3).withOpacity(0.1),
borderRadius: BorderRadius.circular(20),
),
child: const Icon(
Icons.description,
color: Color(0xFF2196F3),
),
),
const SizedBox(width: 12),
Expanded(
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
Text(
record.taskTitle,
style: const TextStyle(
fontSize: 14,
fontWeight: FontWeight.bold,
),
),
Text(
record.taskDescription,
style: const TextStyle(
fontSize: 12,
color: Colors.grey,
),
maxLines: 1,
overflow: TextOverflow.ellipsis,
),
const SizedBox(height: 4),
Row(
children: [
Text(
record.formattedDate,
style: const TextStyle(
fontSize: 10,
color: Colors.grey,
),
),
const SizedBox(width: 8),
Text(
'${record.wordCount}词',
style: const TextStyle(
fontSize: 10,
color: Colors.grey,
),
),
const SizedBox(width: 8),
Text(
record.formattedTime,
style: const TextStyle(
fontSize: 10,
color: Colors.grey,
),
),
],
),
],
),
),
Column(
children: [
Container(
padding: const EdgeInsets.symmetric(horizontal: 8, vertical: 4),
decoration: BoxDecoration(
color: _getScoreColor(record.score),
borderRadius: BorderRadius.circular(12),
),
child: Text(
record.scoreText,
style: const TextStyle(
fontSize: 12,
color: Colors.white,
fontWeight: FontWeight.bold,
),
),
),
],
),
],
),
);
}
Color _getScoreColor(int score) {
if (score >= 90) return const Color(0xFF4CAF50);
if (score >= 80) return const Color(0xFF2196F3);
if (score >= 70) return const Color(0xFFFF9800);
return const Color(0xFFFF5722);
}
Widget _buildWritingItem(
String title,
String subtitle,
String score,
String date,
) {
return Container(
padding: const EdgeInsets.all(12),
decoration: BoxDecoration(
color: Colors.grey[50],
borderRadius: BorderRadius.circular(8),
),
child: Row(
children: [
Container(
width: 40,
height: 40,
decoration: BoxDecoration(
color: const Color(0xFF2196F3).withOpacity(0.1),
borderRadius: BorderRadius.circular(20),
),
child: const Icon(
Icons.description,
color: Color(0xFF2196F3),
),
),
const SizedBox(width: 12),
Expanded(
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
Text(
title,
style: const TextStyle(
fontSize: 14,
fontWeight: FontWeight.bold,
),
),
Text(
subtitle,
style: const TextStyle(
fontSize: 12,
color: Colors.grey,
),
),
const SizedBox(height: 4),
Text(
date,
style: const TextStyle(
fontSize: 10,
color: Colors.grey,
),
),
],
),
),
Column(
children: [
Container(
padding: const EdgeInsets.symmetric(horizontal: 8, vertical: 4),
decoration: BoxDecoration(
color: const Color(0xFF2196F3),
borderRadius: BorderRadius.circular(12),
),
child: Text(
score,
style: const TextStyle(
fontSize: 12,
color: Colors.white,
fontWeight: FontWeight.bold,
),
),
),
],
),
],
),
);
}
Widget _buildWritingProgress() {
return Container(
padding: const EdgeInsets.all(20),
decoration: BoxDecoration(
color: Colors.white,
borderRadius: BorderRadius.circular(16),
boxShadow: [
BoxShadow(
color: Colors.black.withOpacity(0.05),
blurRadius: 10,
offset: const Offset(0, 2),
),
],
),
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
const Text(
'写作统计',
style: TextStyle(
fontSize: 18,
fontWeight: FontWeight.bold,
),
),
const SizedBox(height: 16),
Consumer(
builder: (context, ref, _) {
final service = ref.watch(writingServiceProvider);
final user = ref.watch(currentUserProvider);
final userId = user?.id?.toString() ?? '';
return FutureBuilder(
future: service.getUserWritingStats(userId, forceRefresh: _statsForceRefresh),
builder: (context, snapshot) {
if (snapshot.connectionState == ConnectionState.waiting) {
return const Center(child: CircularProgressIndicator());
}
if (snapshot.hasError) {
return Center(
child: Column(
mainAxisAlignment: MainAxisAlignment.center,
children: [
Icon(
Icons.error_outline,
size: 48,
color: Colors.grey[400],
),
const SizedBox(height: 12),
Text(
'统计加载失败',
style: TextStyle(
fontSize: 14,
color: Colors.grey[600],
),
),
const SizedBox(height: 8),
TextButton(
onPressed: () {
setState(() {
_statsForceRefresh = !_statsForceRefresh;
});
},
child: const Text('重试'),
),
],
),
);
}
if (!snapshot.hasData) {
return const SizedBox.shrink();
}
final stats = snapshot.data!;
if (stats.completedTasks == 0) {
return Center(
child: Column(
mainAxisAlignment: MainAxisAlignment.center,
children: [
Icon(
Icons.insights,
size: 48,
color: Colors.grey[400],
),
const SizedBox(height: 12),
Text(
'暂无写作统计',
style: TextStyle(
fontSize: 14,
color: Colors.grey[600],
),
),
const SizedBox(height: 8),
TextButton(
onPressed: () {
setState(() {
_statsForceRefresh = !_statsForceRefresh;
});
},
child: const Text('刷新'),
),
],
),
);
}
return Row(
mainAxisAlignment: MainAxisAlignment.spaceAround,
children: [
_buildProgressItem('${stats.completedTasks}', '完成篇数', Icons.article),
_buildProgressItem('${stats.averageScore.toStringAsFixed(0)}', '平均分', Icons.grade),
_buildProgressItem('${((stats.skillAnalysis.criteriaScores['grammar'] ?? 0.0) * 100).toStringAsFixed(0)}%', '语法正确率', Icons.spellcheck),
],
);
},
);
},
),
],
),
);
}
Widget _buildProgressItem(String value, String label, IconData icon) {
return Column(
children: [
Icon(
icon,
color: const Color(0xFF2196F3),
size: 24,
),
const SizedBox(height: 8),
Text(
value,
style: const TextStyle(
fontSize: 20,
fontWeight: FontWeight.bold,
color: Color(0xFF2196F3),
),
),
const SizedBox(height: 4),
Text(
label,
style: const TextStyle(
fontSize: 12,
color: Colors.grey,
),
),
],
);
}
}