Files
MaliangAINovalWriter/AINoval/lib/screens/admin/widgets/template_statistics_dialog.dart
2025-09-10 00:07:52 +08:00

469 lines
13 KiB
Dart

import 'package:flutter/material.dart';
import '../../../services/api_service/repositories/impl/admin_repository_impl.dart';
import '../../../utils/logger.dart';
import '../../../widgets/common/loading_indicator.dart';
/// 模板统计对话框
class TemplateStatisticsDialog extends StatefulWidget {
const TemplateStatisticsDialog({Key? key}) : super(key: key);
@override
State<TemplateStatisticsDialog> createState() => _TemplateStatisticsDialogState();
}
class _TemplateStatisticsDialogState extends State<TemplateStatisticsDialog> {
final AdminRepositoryImpl _adminRepository = AdminRepositoryImpl();
bool _isLoading = true;
String? _error;
Map<String, dynamic>? _statistics;
@override
void initState() {
super.initState();
_loadStatistics();
}
@override
Widget build(BuildContext context) {
return Dialog(
child: Container(
width: 600,
height: 500,
padding: const EdgeInsets.all(24),
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
_buildHeader(),
const SizedBox(height: 24),
Expanded(
child: _buildContent(),
),
const SizedBox(height: 16),
_buildActionButtons(),
],
),
),
);
}
Widget _buildHeader() {
return Row(
children: [
const Icon(Icons.analytics, size: 24),
const SizedBox(width: 8),
const Text(
'模板统计',
style: TextStyle(fontSize: 20, fontWeight: FontWeight.bold),
),
const Spacer(),
IconButton(
onPressed: () => Navigator.of(context).pop(),
icon: const Icon(Icons.close),
),
],
);
}
Widget _buildContent() {
if (_isLoading) {
return const Center(child: LoadingIndicator());
}
if (_error != null) {
return Center(
child: Column(
mainAxisAlignment: MainAxisAlignment.center,
children: [
Icon(
Icons.error_outline,
size: 64,
color: Theme.of(context).colorScheme.error,
),
const SizedBox(height: 16),
Text(
'加载失败',
style: Theme.of(context).textTheme.titleLarge,
),
const SizedBox(height: 8),
Text(
_error!,
style: Theme.of(context).textTheme.bodyMedium?.copyWith(
color: Theme.of(context).textTheme.bodyMedium?.color?.withOpacity(0.7),
),
textAlign: TextAlign.center,
),
const SizedBox(height: 24),
ElevatedButton.icon(
onPressed: _loadStatistics,
icon: const Icon(Icons.refresh),
label: const Text('重试'),
),
],
),
);
}
if (_statistics == null) {
return const Center(
child: Text('暂无统计数据'),
);
}
return SingleChildScrollView(
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
_buildOverviewSection(),
const SizedBox(height: 24),
_buildCategorySection(),
const SizedBox(height: 24),
_buildStatusSection(),
const SizedBox(height: 24),
_buildTopTemplatesSection(),
],
),
);
}
Widget _buildOverviewSection() {
final overview = _statistics!['overview'] as Map<String, dynamic>? ?? {};
return Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
const Text(
'总览',
style: TextStyle(fontSize: 16, fontWeight: FontWeight.bold),
),
const SizedBox(height: 12),
GridView.count(
shrinkWrap: true,
physics: const NeverScrollableScrollPhysics(),
crossAxisCount: 2,
crossAxisSpacing: 16,
mainAxisSpacing: 16,
childAspectRatio: 2.5,
children: [
_buildStatCard('总模板数', '${overview['totalTemplates'] ?? 0}', Icons.article, Colors.blue),
_buildStatCard('官方模板', '${overview['officialTemplates'] ?? 0}', Icons.verified, Colors.green),
_buildStatCard('用户模板', '${overview['userTemplates'] ?? 0}', Icons.person, Colors.orange),
_buildStatCard('已发布', '${overview['publishedTemplates'] ?? 0}', Icons.public, Colors.purple),
],
),
],
);
}
Widget _buildStatCard(String title, String value, IconData icon, Color color) {
return Container(
padding: const EdgeInsets.all(16),
decoration: BoxDecoration(
color: color.withOpacity(0.1),
borderRadius: BorderRadius.circular(8),
border: Border.all(color: color.withOpacity(0.3)),
),
child: Row(
children: [
Icon(icon, size: 24, color: color),
const SizedBox(width: 12),
Expanded(
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
mainAxisAlignment: MainAxisAlignment.center,
children: [
Text(
value,
style: TextStyle(
fontSize: 20,
fontWeight: FontWeight.bold,
color: color,
),
),
Text(
title,
style: TextStyle(
fontSize: 12,
color: color.withOpacity(0.8),
),
),
],
),
),
],
),
);
}
Widget _buildCategorySection() {
final categories = _statistics!['byCategory'] as Map<String, dynamic>? ?? {};
return Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
const Text(
'按功能类型分布',
style: TextStyle(fontSize: 16, fontWeight: FontWeight.bold),
),
const SizedBox(height: 12),
...categories.entries.map((entry) {
final label = _getFeatureTypeLabel(entry.key);
final count = entry.value as int;
return _buildProgressItem(label, count, _getMaxCount(categories));
}).toList(),
],
);
}
Widget _buildStatusSection() {
final status = _statistics!['byStatus'] as Map<String, dynamic>? ?? {};
return Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
const Text(
'按状态分布',
style: TextStyle(fontSize: 16, fontWeight: FontWeight.bold),
),
const SizedBox(height: 12),
...status.entries.map((entry) {
final label = _getStatusLabel(entry.key);
final count = entry.value as int;
final color = _getStatusColor(entry.key);
return _buildProgressItem(label, count, _getMaxCount(status), color);
}).toList(),
],
);
}
Widget _buildProgressItem(String label, int count, int maxCount, [Color? color]) {
final progress = maxCount > 0 ? count / maxCount : 0.0;
final itemColor = color ?? Theme.of(context).colorScheme.primary;
return Padding(
padding: const EdgeInsets.only(bottom: 12),
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
Row(
mainAxisAlignment: MainAxisAlignment.spaceBetween,
children: [
Text(label),
Text(
'$count',
style: TextStyle(
fontWeight: FontWeight.bold,
color: itemColor,
),
),
],
),
const SizedBox(height: 4),
LinearProgressIndicator(
value: progress,
backgroundColor: itemColor.withOpacity(0.2),
valueColor: AlwaysStoppedAnimation<Color>(itemColor),
),
],
),
);
}
Widget _buildTopTemplatesSection() {
final topTemplates = _statistics!['topTemplates'] as List<dynamic>? ?? [];
return Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
const Text(
'热门模板 Top 5',
style: TextStyle(fontSize: 16, fontWeight: FontWeight.bold),
),
const SizedBox(height: 12),
if (topTemplates.isEmpty)
const Text('暂无数据')
else
...topTemplates.asMap().entries.map((entry) {
final index = entry.key;
final template = entry.value as Map<String, dynamic>;
return _buildTopTemplateItem(
index + 1,
template['templateName'] as String,
template['useCount'] as int,
template['averageRating'] as double?,
);
}).toList(),
],
);
}
Widget _buildTopTemplateItem(int rank, String name, int useCount, double? rating) {
return Container(
margin: const EdgeInsets.only(bottom: 8),
padding: const EdgeInsets.all(12),
decoration: BoxDecoration(
color: Theme.of(context).colorScheme.surface,
borderRadius: BorderRadius.circular(8),
border: Border.all(
color: Theme.of(context).colorScheme.outline.withOpacity(0.2),
),
),
child: Row(
children: [
Container(
width: 24,
height: 24,
decoration: BoxDecoration(
color: _getRankColor(rank),
shape: BoxShape.circle,
),
child: Center(
child: Text(
'$rank',
style: const TextStyle(
color: Colors.white,
fontSize: 12,
fontWeight: FontWeight.bold,
),
),
),
),
const SizedBox(width: 12),
Expanded(
child: Text(
name,
style: const TextStyle(fontWeight: FontWeight.w500),
),
),
Text(
'使用 $useCount',
style: TextStyle(
fontSize: 12,
color: Theme.of(context).colorScheme.onSurface.withOpacity(0.6),
),
),
if (rating != null && rating > 0) ...[
const SizedBox(width: 8),
Icon(Icons.star, size: 16, color: Colors.amber),
Text(
rating.toStringAsFixed(1),
style: TextStyle(
fontSize: 12,
color: Theme.of(context).colorScheme.onSurface.withOpacity(0.6),
),
),
],
],
),
);
}
Widget _buildActionButtons() {
return Row(
mainAxisAlignment: MainAxisAlignment.end,
children: [
TextButton.icon(
onPressed: _loadStatistics,
icon: const Icon(Icons.refresh),
label: const Text('刷新'),
),
const SizedBox(width: 12),
ElevatedButton(
onPressed: () => Navigator.of(context).pop(),
child: const Text('关闭'),
),
],
);
}
Future<void> _loadStatistics() async {
setState(() {
_isLoading = true;
_error = null;
});
try {
final statistics = await _adminRepository.getTemplateStatistics();
setState(() {
_statistics = statistics;
_isLoading = false;
});
} catch (e) {
AppLogger.e('TemplateStatisticsDialog', '加载模板统计失败', e);
setState(() {
_error = e.toString();
_isLoading = false;
});
}
}
int _getMaxCount(Map<String, dynamic> data) {
if (data.isEmpty) return 1;
return data.values.cast<int>().reduce((a, b) => a > b ? a : b);
}
String _getFeatureTypeLabel(String featureType) {
switch (featureType) {
case 'CHAT':
return 'AI聊天';
case 'SCENE_GENERATION':
return '场景生成';
case 'CONTINUATION':
return '续写';
case 'SUMMARY':
return '总结';
case 'OUTLINE':
return '大纲';
default:
return featureType;
}
}
String _getStatusLabel(String status) {
switch (status) {
case 'PUBLISHED':
return '已发布';
case 'PENDING':
return '待审核';
case 'REJECTED':
return '已拒绝';
case 'VERIFIED':
return '已认证';
default:
return status;
}
}
Color _getStatusColor(String status) {
switch (status) {
case 'PUBLISHED':
return Colors.green;
case 'PENDING':
return Colors.orange;
case 'REJECTED':
return Colors.red;
case 'VERIFIED':
return Colors.blue;
default:
return Colors.grey;
}
}
Color _getRankColor(int rank) {
switch (rank) {
case 1:
return Colors.amber;
case 2:
return Colors.grey[400]!;
case 3:
return Colors.orange[300]!;
default:
return Colors.blue;
}
}
}