720 lines
22 KiB
Dart
720 lines
22 KiB
Dart
import 'dart:io';
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import 'dart:async';
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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 'package:image_picker/image_picker.dart';
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import 'package:file_picker/file_picker.dart';
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import 'package:shadcn_ui/shadcn_ui.dart';
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import '../../core/app_colors.dart';
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import '../../core/app_design_tokens.dart';
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import '../../core/app_module_visuals.dart';
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import '../../core/navigation_provider.dart';
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import '../../providers/auth_provider.dart';
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import '../../providers/chat_provider.dart';
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import '../../providers/data_providers.dart';
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import '../../widgets/health_drawer.dart';
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import '../../widgets/keyboard_lift.dart';
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import '../diet/diet_capture_page.dart';
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import 'widgets/chat_messages_view.dart';
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class HomePage extends ConsumerStatefulWidget {
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const HomePage({super.key});
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@override
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ConsumerState<HomePage> createState() => _HomePageState();
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}
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class _HomePageState extends ConsumerState<HomePage>
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with WidgetsBindingObserver {
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final _textCtrl = TextEditingController();
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final _scrollCtrl = ScrollController();
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final _focusNode = FocusNode();
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final _scaffoldKey = GlobalKey<ScaffoldState>();
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String? _pickedImagePath;
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Timer? _notificationTimer;
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double _conversationDragDistance = 0;
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void _startConversationDrawerDrag(DragStartDetails details) {
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_conversationDragDistance = 0;
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}
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void _updateConversationDrawerDrag(DragUpdateDetails details) {
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_conversationDragDistance += details.delta.dx;
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if (_conversationDragDistance < 0) {
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_conversationDragDistance = 0;
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}
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if (_conversationDragDistance >= 42) {
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_conversationDragDistance = 0;
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_scaffoldKey.currentState?.openDrawer();
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}
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}
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void _endConversationDrawerDrag(DragEndDetails details) {
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_conversationDragDistance = 0;
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}
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@override
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void initState() {
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super.initState();
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WidgetsBinding.instance.addObserver(this);
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_scheduleScrollToLatest();
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WidgetsBinding.instance.addPostFrameCallback((_) {
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_checkDueNotifications();
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_refreshTodayHealthIfCached();
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});
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_notificationTimer = Timer.periodic(
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const Duration(minutes: 2),
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(_) => _checkDueNotifications(),
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);
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}
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@override
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void didChangeAppLifecycleState(AppLifecycleState state) {
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if (state == AppLifecycleState.resumed) {
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_checkDueNotifications();
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}
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}
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@override
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void dispose() {
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WidgetsBinding.instance.removeObserver(this);
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_notificationTimer?.cancel();
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_textCtrl.dispose();
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_scrollCtrl.dispose();
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_focusNode.dispose();
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super.dispose();
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}
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void _sendMessage() {
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if (ref.read(chatProvider).isStreaming) return;
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final text = _textCtrl.text.trim();
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final imagePath = _pickedImagePath;
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if (text.isEmpty && imagePath == null) return;
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_textCtrl.clear();
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_dismissKeyboard();
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setState(() => _pickedImagePath = null);
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if (imagePath != null) {
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ref.read(chatProvider.notifier).sendImage(imagePath, text);
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} else {
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ref.read(chatProvider.notifier).sendMessage(text);
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}
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}
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void _refreshTodayHealthIfCached() {
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if (!ref.read(todayHealthSnapshotProvider).hasValue) return;
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ref.invalidate(latestHealthProvider);
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ref.invalidate(medicationReminderProvider);
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ref.invalidate(currentExercisePlanProvider);
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}
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void _scheduleScrollToLatest() {
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WidgetsBinding.instance.addPostFrameCallback((_) {
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if (!mounted || !_scrollCtrl.hasClients) return;
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_scrollCtrl.jumpTo(_scrollCtrl.position.maxScrollExtent);
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// Lazy list items can refine the final extent after the first layout.
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WidgetsBinding.instance.addPostFrameCallback((_) {
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if (!mounted || !_scrollCtrl.hasClients) return;
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_scrollCtrl.jumpTo(_scrollCtrl.position.maxScrollExtent);
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});
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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 auth = ref.watch(authProvider);
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final user = auth.user;
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ref.listen(cameraActionProvider, (prev, next) {
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if (next == 'camera') {
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_pickImage(ImageSource.camera);
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ref.read(cameraActionProvider.notifier).clear();
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} else if (next == 'gallery') {
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_pickImage(ImageSource.gallery);
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ref.read(cameraActionProvider.notifier).clear();
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}
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});
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ref.listen(dietActionProvider, (prev, next) {
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if (next == 'pickFoodCamera') {
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_pickFoodImage(ImageSource.camera);
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ref.read(dietActionProvider.notifier).clear();
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} else if (next == 'pickFoodGallery') {
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_pickFoodImage(ImageSource.gallery);
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ref.read(dietActionProvider.notifier).clear();
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}
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});
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ref.listen<int>(chatProvider.select((state) => state.messages.length), (
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previous,
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current,
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) {
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if (current <= (previous ?? 0)) return;
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_scheduleScrollToLatest();
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});
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return Scaffold(
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key: _scaffoldKey,
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resizeToAvoidBottomInset: false,
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backgroundColor: const Color(0xFFFFFCFF),
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drawer: const HealthDrawer(),
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drawerEnableOpenDragGesture: false,
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body: DecoratedBox(
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decoration: const BoxDecoration(
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gradient: LinearGradient(
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begin: Alignment.topLeft,
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end: Alignment.bottomRight,
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colors: [Color(0xFFF0EDFF), Color(0xFFE6ECFF)],
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),
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),
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child: SafeArea(
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child: Column(
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children: [
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_buildHeader(user),
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Expanded(
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child: ClipRect(
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child: KeyboardTranslate(
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child: Column(
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children: [
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Expanded(
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child: GestureDetector(
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behavior: HitTestBehavior.opaque,
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onHorizontalDragStart: _startConversationDrawerDrag,
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onHorizontalDragUpdate:
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_updateConversationDrawerDrag,
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onHorizontalDragEnd: _endConversationDrawerDrag,
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onHorizontalDragCancel: () =>
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_conversationDragDistance = 0,
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child: RepaintBoundary(
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child: _HomeMessages(scrollCtrl: _scrollCtrl),
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),
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),
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),
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_buildBottomBar(context),
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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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Widget _buildHeader(dynamic user) {
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final name = (user?.name != null && user!.name!.isNotEmpty)
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? user.name
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: '用户';
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final unreadCount = ref.watch(notificationUnreadCountProvider).value ?? 0;
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return Container(
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padding: const EdgeInsets.fromLTRB(14, 8, 14, 6),
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child: Row(
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children: [
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Builder(
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builder: (ctx) {
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return _HeaderIconButton(
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icon: LucideIcons.menu,
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onTap: () => Scaffold.of(ctx).openDrawer(),
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);
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},
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),
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const SizedBox(width: 14),
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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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const Text(
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'小脉健康',
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style: 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: 2),
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Text(
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'${_getGreeting()}，$name',
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style: const TextStyle(
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fontSize: 18,
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fontWeight: FontWeight.w600,
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color: AppColors.textPrimary,
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),
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),
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],
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),
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),
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_HeaderIconButton(
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icon: LucideIcons.bell,
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badgeCount: unreadCount,
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onTap: () => pushRoute(ref, 'notifications'),
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),
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],
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),
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);
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}
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String _getGreeting() {
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final hour = DateTime.now().hour;
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if (hour < 9) return '早上好';
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if (hour < 12) return '上午好';
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if (hour < 18) return '下午好';
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return '晚上好';
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}
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static final _agentDefs = [
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ActiveAgent.consultation,
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ActiveAgent.health,
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ActiveAgent.diet,
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ActiveAgent.medication,
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ActiveAgent.report,
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ActiveAgent.exercise,
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];
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Widget _buildAgentBar() {
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final activeAgent = ref.watch(
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chatProvider.select((state) => state.activeAgent),
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);
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return SizedBox(
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height: 46,
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child: ListView.separated(
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scrollDirection: Axis.horizontal,
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padding: const EdgeInsets.symmetric(horizontal: 14, vertical: 2),
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itemCount: _agentDefs.length,
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separatorBuilder: (_, _) => const SizedBox(width: 8),
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itemBuilder: (_, i) {
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final agent = _agentDefs[i];
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final visual = _agentVisual(agent);
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final selected = activeAgent == agent;
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return GestureDetector(
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onTap: () => ref
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.read(chatProvider.notifier)
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.triggerAgent(agent, visual.label),
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child: Container(
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decoration: BoxDecoration(
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color: selected ? null : Colors.transparent,
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gradient: selected ? AppColors.actionOutlineGradient : null,
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borderRadius: AppRadius.pillBorder,
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),
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padding: const EdgeInsets.all(1.2),
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child: Container(
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padding: const EdgeInsets.symmetric(
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horizontal: 11.8,
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vertical: 7.8,
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),
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decoration: BoxDecoration(
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color: Colors.white,
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borderRadius: AppRadius.pillBorder,
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),
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child: Row(
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mainAxisSize: MainAxisSize.min,
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children: [
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Container(
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width: 18,
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height: 18,
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decoration: BoxDecoration(
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gradient: visual.gradient,
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borderRadius: BorderRadius.circular(6),
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),
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child: Icon(
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visual.icon,
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size: 13,
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color: visual.iconColor,
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),
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),
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const SizedBox(width: 6),
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Text(
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visual.label,
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style: const TextStyle(
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fontSize: 15,
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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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],
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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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({String label, IconData icon, LinearGradient gradient, Color iconColor})
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_agentVisual(ActiveAgent agent) {
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({String label, AppModuleVisual visual}) fromModule(
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String label,
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AppModuleVisual visual,
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) => (label: label, visual: visual);
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final module = switch (agent) {
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ActiveAgent.health => fromModule('记数据', AppModuleVisuals.health),
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ActiveAgent.diet => fromModule('拍饮食', AppModuleVisuals.diet),
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ActiveAgent.medication => fromModule('药管家', AppModuleVisuals.medication),
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ActiveAgent.report => fromModule('报告', AppModuleVisuals.report),
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ActiveAgent.exercise => fromModule('运动', AppModuleVisuals.exercise),
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_ => null,
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};
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if (module != null) {
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return (
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label: module.label,
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icon: module.visual.icon,
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gradient: module.visual.gradient,
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iconColor: Colors.white,
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);
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}
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return switch (agent) {
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ActiveAgent.consultation => (
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label: 'AI问诊',
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icon: LucideIcons.messageCircle,
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gradient: AppColors.doctorGradient,
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iconColor: Colors.white,
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),
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_ => (
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label: 'AI问诊',
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icon: LucideIcons.messageCircle,
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gradient: AppColors.primaryGradient,
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iconColor: Colors.white,
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),
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};
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}
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Widget _buildBottomBar(BuildContext context) {
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return Container(
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decoration: BoxDecoration(
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color: Colors.white.withValues(alpha: 0.28),
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border: Border(
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top: BorderSide(color: Colors.white.withValues(alpha: 0.62)),
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),
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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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const SizedBox(height: 8),
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_buildAgentBar(),
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const SizedBox(height: 12),
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if (_pickedImagePath != null) _buildImagePreview(),
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_buildInputBar(),
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],
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),
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);
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}
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Widget _buildImagePreview() {
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return Container(
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margin: const EdgeInsets.fromLTRB(14, 8, 14, 0),
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padding: const EdgeInsets.all(10),
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decoration: BoxDecoration(
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color: Colors.white.withValues(alpha: 0.9),
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borderRadius: BorderRadius.circular(14),
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border: Border.all(color: AppColors.borderLight),
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),
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child: Row(
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children: [
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ClipRRect(
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borderRadius: BorderRadius.circular(10),
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child: Image.file(
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File(_pickedImagePath!),
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width: 48,
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height: 48,
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fit: BoxFit.cover,
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),
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),
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const SizedBox(width: 10),
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const Expanded(
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child: Text(
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'点击发送图片',
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style: TextStyle(fontSize: 14, color: AppColors.textSecondary),
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),
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),
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GestureDetector(
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onTap: () => setState(() => _pickedImagePath = null),
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child: const Icon(Icons.close, size: 20, 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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Widget _buildInputBar() {
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final isStreaming = ref.watch(
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chatProvider.select((state) => state.isStreaming),
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);
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return Padding(
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padding: const EdgeInsets.fromLTRB(12, 0, 12, 10),
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child: Container(
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padding: const EdgeInsets.fromLTRB(6, 5, 6, 5),
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decoration: BoxDecoration(
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color: Colors.white,
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borderRadius: AppRadius.pillBorder,
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),
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child: Row(
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crossAxisAlignment: CrossAxisAlignment.center,
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children: [
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Material(
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color: Colors.transparent,
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child: InkWell(
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customBorder: const CircleBorder(),
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onTap: () => _showAttachmentPicker(context),
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child: Ink(
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width: 38,
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height: 38,
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decoration: const BoxDecoration(
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gradient: AppColors.primaryGradient,
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shape: BoxShape.circle,
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),
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child: const Icon(
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LucideIcons.plus,
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size: 21,
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color: Colors.white,
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),
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),
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),
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),
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const SizedBox(width: 6),
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Expanded(
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child: ConstrainedBox(
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constraints: const BoxConstraints(maxHeight: 112),
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child: TextField(
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controller: _textCtrl,
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focusNode: _focusNode,
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style: const TextStyle(
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fontSize: 15,
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color: AppColors.textPrimary,
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),
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maxLines: null,
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textInputAction: TextInputAction.newline,
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decoration: const InputDecoration(
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hintText: '输入你想说的...',
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filled: false,
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isDense: true,
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contentPadding: EdgeInsets.symmetric(
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horizontal: 4,
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vertical: 12,
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),
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border: InputBorder.none,
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enabledBorder: InputBorder.none,
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focusedBorder: InputBorder.none,
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),
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onSubmitted: (_) => _sendMessage(),
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),
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),
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),
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const SizedBox(width: 6),
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Material(
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color: Colors.transparent,
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child: InkWell(
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customBorder: const CircleBorder(),
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onTap: isStreaming
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? () => ref.read(chatProvider.notifier).stopGenerating()
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: _sendMessage,
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child: Ink(
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width: 38,
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height: 38,
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decoration: const BoxDecoration(
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gradient: AppColors.primaryGradient,
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shape: BoxShape.circle,
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),
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child: Icon(
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isStreaming ? Icons.stop_rounded : LucideIcons.send,
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size: 18,
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color: Colors.white,
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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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void _showAttachmentPicker(BuildContext context) {
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_dismissKeyboard();
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showModalBottomSheet(
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context: context,
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backgroundColor: Colors.white,
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shape: const RoundedRectangleBorder(
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borderRadius: BorderRadius.vertical(top: Radius.circular(20)),
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),
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builder: (ctx) => SafeArea(
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child: Padding(
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padding: const EdgeInsets.symmetric(vertical: 10),
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child: Wrap(
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children: [
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ListTile(
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leading: const Icon(
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Icons.camera_alt_outlined,
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color: AppColors.primary,
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),
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title: const Text('拍照'),
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onTap: () {
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Navigator.pop(ctx);
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_dismissKeyboard();
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_pickImage(ImageSource.camera);
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},
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),
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ListTile(
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leading: const Icon(
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Icons.photo_library_outlined,
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color: AppColors.primary,
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),
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title: const Text('从相册选择'),
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onTap: () {
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Navigator.pop(ctx);
|
||
_dismissKeyboard();
|
||
_pickImage(ImageSource.gallery);
|
||
},
|
||
),
|
||
ListTile(
|
||
leading: const Icon(
|
||
Icons.picture_as_pdf_outlined,
|
||
color: AppColors.primary,
|
||
),
|
||
title: const Text('上传 PDF'),
|
||
onTap: () async {
|
||
Navigator.pop(ctx);
|
||
await _pickPdf();
|
||
},
|
||
),
|
||
],
|
||
),
|
||
),
|
||
),
|
||
);
|
||
}
|
||
|
||
Future<void> _pickImage(ImageSource source) async {
|
||
_dismissKeyboard();
|
||
final picked = await ImagePicker().pickImage(
|
||
source: source,
|
||
imageQuality: 85,
|
||
);
|
||
_dismissKeyboard();
|
||
if (picked != null) {
|
||
final token = await ref.read(apiClientProvider).accessToken;
|
||
if (token == null) return;
|
||
setState(() => _pickedImagePath = picked.path);
|
||
WidgetsBinding.instance.addPostFrameCallback((_) => _dismissKeyboard());
|
||
}
|
||
}
|
||
|
||
void _dismissKeyboard() {
|
||
_focusNode.unfocus();
|
||
FocusManager.instance.primaryFocus?.unfocus();
|
||
}
|
||
|
||
Future<void> _pickPdf() async {
|
||
_dismissKeyboard();
|
||
final result = await FilePicker.platform.pickFiles(
|
||
type: FileType.custom,
|
||
allowedExtensions: ['pdf'],
|
||
withData: false,
|
||
);
|
||
if (result == null || result.files.isEmpty) return;
|
||
final pdfFile = result.files.first;
|
||
final path = pdfFile.path;
|
||
if (path == null || path.isEmpty) return;
|
||
await ref
|
||
.read(chatProvider.notifier)
|
||
.sendPdf(path, pdfFile.name, _textCtrl.text.trim());
|
||
_textCtrl.clear();
|
||
_dismissKeyboard();
|
||
}
|
||
|
||
Future<void> _checkDueNotifications() async {
|
||
try {
|
||
await ref.read(inAppNotificationServiceProvider).checkDue();
|
||
} catch (_) {
|
||
// Network failures should not block the home page.
|
||
} finally {
|
||
ref.invalidate(notificationUnreadCountProvider);
|
||
}
|
||
}
|
||
|
||
Future<void> _pickFoodImage(ImageSource source) async {
|
||
final picked = await ImagePicker().pickImage(
|
||
source: source,
|
||
imageQuality: 80,
|
||
maxWidth: 1024,
|
||
maxHeight: 1024,
|
||
);
|
||
if (picked != null && mounted) {
|
||
ref.read(dietProvider.notifier).reset();
|
||
ref.read(dietProvider.notifier).setImage(picked.path);
|
||
ref.read(dietProvider.notifier).analyzeImage();
|
||
pushRoute(ref, 'dietCapture');
|
||
}
|
||
}
|
||
}
|
||
|
||
class _HomeMessages extends ConsumerWidget {
|
||
final ScrollController scrollCtrl;
|
||
|
||
const _HomeMessages({required this.scrollCtrl});
|
||
|
||
@override
|
||
Widget build(BuildContext context, WidgetRef ref) {
|
||
final messages = ref.watch(chatProvider.select((state) => state.messages));
|
||
return ChatMessagesView(scrollCtrl: scrollCtrl, messages: messages);
|
||
}
|
||
}
|
||
|
||
class _HeaderIconButton extends StatelessWidget {
|
||
final IconData icon;
|
||
final VoidCallback onTap;
|
||
final int badgeCount;
|
||
const _HeaderIconButton({
|
||
required this.icon,
|
||
required this.onTap,
|
||
this.badgeCount = 0,
|
||
});
|
||
|
||
@override
|
||
Widget build(BuildContext context) {
|
||
return GestureDetector(
|
||
onTap: onTap,
|
||
child: Stack(
|
||
clipBehavior: Clip.none,
|
||
children: [
|
||
Container(
|
||
width: 44,
|
||
height: 44,
|
||
decoration: BoxDecoration(
|
||
gradient: AppColors.surfaceGradient,
|
||
borderRadius: BorderRadius.circular(14),
|
||
border: Border.all(color: AppColors.borderLight),
|
||
boxShadow: AppColors.cardShadowLight,
|
||
),
|
||
child: Icon(icon, size: 20, color: AppColors.textPrimary),
|
||
),
|
||
if (badgeCount > 0)
|
||
Positioned(
|
||
right: -5,
|
||
top: -5,
|
||
child: Container(
|
||
constraints: const BoxConstraints(minWidth: 18, minHeight: 18),
|
||
padding: const EdgeInsets.symmetric(horizontal: 4),
|
||
decoration: BoxDecoration(
|
||
color: AppColors.error,
|
||
borderRadius: BorderRadius.circular(10),
|
||
border: Border.all(color: Colors.white, width: 2),
|
||
),
|
||
alignment: Alignment.center,
|
||
child: Text(
|
||
badgeCount > 99 ? '99+' : '$badgeCount',
|
||
style: const TextStyle(
|
||
color: Colors.white,
|
||
fontSize: 10,
|
||
fontWeight: FontWeight.w600,
|
||
),
|
||
),
|
||
),
|
||
),
|
||
],
|
||
),
|
||
);
|
||
}
|
||
}
|