feat: AI 对话附件上下文解析 + 历史会话归档 + 多页面 UI 重构
- 后端: 新增 AttachmentContextBuilder 解析图片/PDF 摘要并拼入 LLM 上下文; ai_chat_endpoints 扩展附件接口; 新增 ReportAnalysisService - 前端: 新增历史会话页与 conversation_history_provider; chat 链路支持附件展示与回放 - UI: 重构 medication_checkin / notification_center / profile / health_drawer 等多页面 - 配置: api_client baseUrl 适配当前 WiFi IP
This commit is contained in:
MingNian
352
health_app/lib/pages/history/conversation_history_page.dart
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352
health_app/lib/pages/history/conversation_history_page.dart
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import 'package:flutter/material.dart';
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import 'package:flutter_riverpod/flutter_riverpod.dart';
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import '../../core/app_colors.dart';
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import '../../core/app_theme.dart';
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import '../../core/navigation_provider.dart';
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import '../../providers/chat_provider.dart';
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import '../../providers/conversation_history_provider.dart';
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/// 对话历史完整列表页。
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/// - 左滑删除（真删，删后 ScaffoldMessenger 提示）
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/// - 顶部"清空全部"按钮（确认弹窗 → 调 deleteAll）
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/// - 点击一条 → loadConversation → popRoute 回首页
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class ConversationHistoryPage extends ConsumerWidget {
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const ConversationHistoryPage({super.key});
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@override
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Widget build(BuildContext context, WidgetRef ref) {
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final async = ref.watch(conversationHistoryProvider);
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return GradientScaffold(
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appBar: AppBar(
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backgroundColor: Colors.white.withValues(alpha: 0.9),
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title: const Text('最近 7 次对话'),
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leading: IconButton(
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icon: const Icon(Icons.arrow_back),
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onPressed: () => popRoute(ref),
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),
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actions: [
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TextButton(
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onPressed: () => _confirmClearAll(context, ref),
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child: const Text(
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'清空',
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style: TextStyle(
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color: AppColors.error,
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fontWeight: FontWeight.w800,
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),
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),
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),
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],
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),
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body: RefreshIndicator(
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onRefresh: () =>
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ref.read(conversationHistoryProvider.notifier).refresh(),
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child: async.when(
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loading: () => const Center(child: CircularProgressIndicator()),
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error: (e, _) => _ErrorBlock(
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message: '历史记录加载失败',
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onRetry: () =>
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ref.read(conversationHistoryProvider.notifier).refresh(),
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),
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data: (list) => list.isEmpty
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? const _EmptyHint()
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: ListView.separated(
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padding: const EdgeInsets.fromLTRB(16, 14, 16, 24),
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itemCount: list.length,
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separatorBuilder: (_, index) => const SizedBox(height: 10),
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itemBuilder: (context, index) {
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final item = list[index];
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return _HistoryTile(
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item: item,
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onTap: () => _openConversation(ref, item.id),
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onDelete: () => _deleteOne(context, ref, item.id),
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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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Future<void> _openConversation(WidgetRef ref, String id) async {
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await ref.read(chatProvider.notifier).loadConversation(id);
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popRoute(ref);
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}
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Future<void> _deleteOne(
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BuildContext context,
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WidgetRef ref,
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String id,
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) async {
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try {
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await ref.read(conversationHistoryProvider.notifier).deleteOne(id);
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if (context.mounted) {
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ScaffoldMessenger.of(context).showSnackBar(
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const SnackBar(content: Text('已删除'), duration: Duration(seconds: 1)),
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);
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}
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} catch (_) {
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if (context.mounted) {
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ScaffoldMessenger.of(context).showSnackBar(
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const SnackBar(
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content: Text('删除失败，请稍后重试'),
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backgroundColor: AppColors.error,
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),
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);
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}
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}
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}
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Future<void> _confirmClearAll(BuildContext context, WidgetRef ref) async {
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final ok = await showDialog<bool>(
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context: context,
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builder: (ctx) => AlertDialog(
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title: const Text('清空全部历史'),
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content: const Text('清空后无法恢复，确认继续？'),
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actions: [
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TextButton(
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onPressed: () => Navigator.pop(ctx, false),
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child: const Text('取消'),
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),
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TextButton(
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onPressed: () => Navigator.pop(ctx, true),
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style: TextButton.styleFrom(foregroundColor: AppColors.error),
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child: const Text('清空'),
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),
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],
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),
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);
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if (ok != true) return;
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try {
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final count = await ref
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.read(conversationHistoryProvider.notifier)
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.clearAll();
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if (context.mounted) {
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ScaffoldMessenger.of(
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context,
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).showSnackBar(SnackBar(content: Text('已清空 $count 条对话')));
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}
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} catch (_) {
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if (context.mounted) {
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ScaffoldMessenger.of(context).showSnackBar(
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const SnackBar(
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content: Text('清空失败，请稍后重试'),
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backgroundColor: AppColors.error,
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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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class _HistoryTile extends StatelessWidget {
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final ConversationListItem item;
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final VoidCallback onTap;
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final VoidCallback onDelete;
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const _HistoryTile({
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required this.item,
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required this.onTap,
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required this.onDelete,
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});
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@override
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Widget build(BuildContext context) {
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return Dismissible(
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key: ValueKey(item.id),
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direction: DismissDirection.endToStart,
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background: Container(
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alignment: Alignment.centerRight,
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padding: const EdgeInsets.only(right: 22),
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decoration: BoxDecoration(
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color: AppColors.error,
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borderRadius: BorderRadius.circular(14),
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),
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child: const Row(
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mainAxisSize: MainAxisSize.min,
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children: [
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Icon(Icons.delete_outline, color: Colors.white),
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SizedBox(width: 6),
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Text(
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'删除',
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style: TextStyle(
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color: Colors.white,
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fontWeight: FontWeight.w800,
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),
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),
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],
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),
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),
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confirmDismiss: (_) async {
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onDelete();
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return true;
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},
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child: InkWell(
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onTap: onTap,
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borderRadius: BorderRadius.circular(14),
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child: Container(
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padding: const EdgeInsets.symmetric(horizontal: 14, vertical: 12),
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decoration: BoxDecoration(
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color: Colors.white,
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borderRadius: BorderRadius.circular(14),
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border: Border.all(color: AppColors.borderLight),
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boxShadow: AppColors.cardShadowLight,
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),
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child: Row(
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children: [
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Container(
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width: 38,
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height: 38,
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decoration: BoxDecoration(
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color: const Color(0xFFEFF6FF),
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borderRadius: BorderRadius.circular(12),
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),
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child: const Icon(
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Icons.forum_rounded,
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color: Color(0xFF2563EB),
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size: 20,
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),
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),
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const SizedBox(width: 12),
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Expanded(
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child: Column(
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crossAxisAlignment: CrossAxisAlignment.start,
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children: [
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Text(
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_displaySummary(item),
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maxLines: 2,
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overflow: TextOverflow.ellipsis,
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style: const TextStyle(
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fontSize: 15,
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fontWeight: FontWeight.w800,
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color: AppColors.textPrimary,
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),
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),
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const SizedBox(height: 3),
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if (_displayOriginalQuestion(item).isNotEmpty) ...[
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Text(
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'首问：${_displayOriginalQuestion(item)}',
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maxLines: 1,
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overflow: TextOverflow.ellipsis,
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style: const TextStyle(
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fontSize: 12,
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fontWeight: FontWeight.w600,
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color: AppColors.textHint,
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),
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),
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const SizedBox(height: 4),
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],
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Text(
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'${item.messageCount} 条 · ${_relativeTime(item.updatedAt)}',
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style: const TextStyle(
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fontSize: 12,
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fontWeight: FontWeight.w600,
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color: AppColors.textHint,
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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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}
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static String _displayTitle(ConversationListItem item) {
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final s = item.summary?.trim();
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if (s != null && s.isNotEmpty) return s;
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final t = item.title?.trim();
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if (t != null && t.isNotEmpty) return t;
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return '未命名对话';
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}
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static String _displaySummary(ConversationListItem item) {
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final s = item.summary?.trim();
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if (s != null && s.isNotEmpty) return s.replaceAll(RegExp(r'\s+'), ' ');
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return _displayTitle(item);
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}
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static String _displayOriginalQuestion(ConversationListItem item) {
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final t = item.title?.trim();
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if (t == null || t.isEmpty) return '';
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final summary = item.summary?.trim();
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if (summary != null && summary.isNotEmpty && summary != t) {
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return t.replaceAll(RegExp(r'\s+'), ' ');
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}
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return '';
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}
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static String _relativeTime(DateTime time) {
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final now = DateTime.now();
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final local = time.toLocal();
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final diff = now.difference(local);
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if (diff.inMinutes < 1) return '刚刚';
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if (diff.inHours < 1) return '${diff.inMinutes} 分钟前';
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if (diff.inDays < 1) return '${diff.inHours} 小时前';
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if (diff.inDays < 7) return '${diff.inDays} 天前';
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return '${local.year}/${local.month}/${local.day}';
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}
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}
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class _EmptyHint extends StatelessWidget {
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const _EmptyHint();
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@override
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Widget build(BuildContext context) {
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return ListView(
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children: const [
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SizedBox(height: 120),
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Center(
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child: Column(
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mainAxisSize: MainAxisSize.min,
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children: [
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Icon(Icons.forum_outlined, size: 56, color: AppColors.textHint),
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SizedBox(height: 14),
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Text(
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'暂无历史对话',
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style: TextStyle(
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fontSize: 16,
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fontWeight: FontWeight.w700,
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color: AppColors.textPrimary,
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),
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),
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SizedBox(height: 6),
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Text(
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'在首页和 AI 健康助手聊聊吧',
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style: TextStyle(fontSize: 13, color: AppColors.textSecondary),
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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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class _ErrorBlock extends StatelessWidget {
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final String message;
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final VoidCallback onRetry;
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const _ErrorBlock({required this.message, required this.onRetry});
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@override
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Widget build(BuildContext context) {
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return Center(
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child: Column(
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mainAxisSize: MainAxisSize.min,
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children: [
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const Icon(
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Icons.wifi_off_rounded,
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size: 56,
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color: AppColors.textHint,
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),
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const SizedBox(height: 12),
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Text(message, style: const TextStyle(color: AppColors.textSecondary)),
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const SizedBox(height: 14),
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OutlinedButton(onPressed: onRetry, child: const Text('重试')),
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],
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),
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);
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}
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}
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