Files
TPSchedule/mobile/lib/app/hepan_app.dart
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516 lines
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Dart

import 'dart:async';
import 'package:flutter/material.dart';
import 'package:flutter_localizations/flutter_localizations.dart';
import '../domain/schedule_engine.dart';
import '../features/feedback/feedback_http_sender.dart';
import '../features/feedback/feedback_submission.dart';
import '../features/timetable/course_details.dart';
import 'app_controller.dart';
import 'app_theme.dart';
import '../widgets/glass_dock.dart';
import '../widgets/adaptive_page.dart';
import '../widgets/tab_deck.dart';
import '../features/exams/exams_page.dart';
import '../features/timetable/timetable_page.dart';
import '../features/profile/profile_page.dart';
import '../features/school/school_session.dart';
import '../features/school/school_selection_page.dart';
import '../features/school/undergraduate/session.dart';
import '../features/school/undergraduate/exam_query_picker.dart';
import '../domain/undergraduate_exam_query.dart';
import '../services/app_update_service.dart';
import '../features/updates/update_prompt.dart';
class HepanApp extends StatelessWidget {
const HepanApp({
super.key,
required this.controller,
this.schoolBuilder,
this.school,
this.undergraduate,
this.undergraduateBuilder,
this.notificationSelection,
this.feedbackSender,
this.updateService,
this.openUpdateDownload = openUpdateInBrowser,
});
final AppController controller;
final Widget Function()? schoolBuilder;
final SchoolSession? school;
final UndergraduateSession? undergraduate;
final Widget Function()? undergraduateBuilder;
final ValueNotifier<String?>? notificationSelection;
final FeedbackSender? feedbackSender;
final AppUpdateService? updateService;
final UpdateDownloadOpener openUpdateDownload;
@override
Widget build(BuildContext context) => MaterialApp(
debugShowCheckedModeBanner: false,
title: 'TPSchedule',
theme: hepanTheme(),
locale: const Locale('zh', 'CN'),
supportedLocales: const [Locale('zh', 'CN')],
localizationsDelegates: GlobalMaterialLocalizations.delegates,
home: _Shell(
controller: controller,
schoolBuilder: schoolBuilder,
school: school,
undergraduate: undergraduate,
undergraduateBuilder: undergraduateBuilder,
notificationSelection: notificationSelection,
feedbackSender: feedbackSender ?? configuredFeedbackSender(),
updateService: updateService,
openUpdateDownload: openUpdateDownload,
),
);
}
class _Shell extends StatefulWidget {
const _Shell({
required this.controller,
this.schoolBuilder,
this.school,
this.undergraduate,
this.undergraduateBuilder,
this.notificationSelection,
required this.feedbackSender,
this.updateService,
required this.openUpdateDownload,
});
final AppController controller;
final Widget Function()? schoolBuilder;
final SchoolSession? school;
final UndergraduateSession? undergraduate;
final Widget Function()? undergraduateBuilder;
final ValueNotifier<String?>? notificationSelection;
final FeedbackSender feedbackSender;
final AppUpdateService? updateService;
final UpdateDownloadOpener openUpdateDownload;
@override
State<_Shell> createState() => _ShellState();
}
class _ShellState extends State<_Shell> with WidgetsBindingObserver {
int _tab = 0;
bool _openingSchool = false;
bool _checkingUpdate = false;
bool _updatePromptOpen = false;
Timer? _startupUpdate;
Future<void> _checkUpdate({bool silent = false}) async {
if (_checkingUpdate || _updatePromptOpen || widget.updateService == null) {
return;
}
setState(() => _checkingUpdate = true);
try {
final release = await widget.updateService!.check();
if (mounted) setState(() => _checkingUpdate = false);
if (!mounted || ModalRoute.of(context)?.isCurrent != true) return;
if (release != null) {
_updatePromptOpen = true;
await showUpdatePrompt(
context,
release,
openDownload: widget.openUpdateDownload,
);
} else if (!silent) {
ScaffoldMessenger.of(context)
.showSnackBar(const SnackBar(content: Text('当前已是最新版本')));
}
} on UpdateCheckException catch (error) {
if (!silent && mounted) {
ScaffoldMessenger.of(context)
.showSnackBar(SnackBar(content: Text(error.message)));
}
} finally {
_updatePromptOpen = false;
if (mounted) setState(() => _checkingUpdate = false);
}
}
// Restore the saved school; legacy graduate imports infer their source.
SupportedSchool? get _knownSchool =>
widget.controller.snapshot.selectedSchool ??
(widget.undergraduate?.canLogout == true
? SupportedSchool.uestcUndergraduate
: null) ??
(widget.controller.snapshot.schoolTerm != null ||
widget.school?.canLogout == true
? SupportedSchool.uestcGraduate
: null);
void _selectTab(int index) {
if (index == _tab) return;
setState(() => _tab = index);
}
@override
void initState() {
super.initState();
WidgetsBinding.instance.addObserver(this);
widget.notificationSelection?.addListener(_selectNotification);
WidgetsBinding.instance.addPostFrameCallback((_) => _selectNotification());
if (widget.updateService != null) {
WidgetsBinding.instance.addPostFrameCallback((_) {
if (!mounted) return;
_startupUpdate = Timer(const Duration(seconds: 2), () {
if (mounted) unawaited(_checkUpdate(silent: true));
});
});
}
}
@override
void dispose() {
_startupUpdate?.cancel();
WidgetsBinding.instance.removeObserver(this);
widget.notificationSelection?.removeListener(_selectNotification);
super.dispose();
}
Future<void> _selectNotification() async {
final key = widget.notificationSelection?.value;
if (key == null || !mounted) {
return;
}
widget.notificationSelection!.value = null;
await widget.controller.leaveDemo();
if (!mounted) {
return;
}
Navigator.of(context).popUntil((route) => route.isFirst);
setState(() => _tab = 0);
final semester = widget.controller.snapshot.settings.semester;
if (semester == null) {
return;
}
final events = ScheduleEngine.occurrences(
widget.controller.snapshot.courses,
semester,
).where((e) => e.key == key);
if (events.isNotEmpty) {
showCourseDetails(context, events.first);
} else {
ScaffoldMessenger.of(context)
.showSnackBar(const SnackBar(content: Text('这门课程已更新,请查看当前课表')));
}
}
@override
void didChangeAppLifecycleState(AppLifecycleState state) {
if (state == AppLifecycleState.resumed) {
widget.controller.refreshServices();
}
}
Future<void> _school({
bool exams = false,
bool chooseTerm = false,
bool selectSchool = false,
}) async {
if (_openingSchool) return;
_openingSchool = true;
try {
var selected = _knownSchool;
if (selectSchool || selected == null) {
selected = await Navigator.push<SupportedSchool>(
context,
MaterialPageRoute<SupportedSchool>(
builder: (_) => SchoolSelectionPage(selected: _knownSchool),
),
);
if (!mounted || selected == null) return;
final saved = await widget.controller.selectSchool(selected);
if (!mounted || !saved) return;
}
if (!mounted) return;
switch (selected) {
case SupportedSchool.uestcGraduate:
await _openSchool(exams: exams, chooseTerm: chooseTerm);
case SupportedSchool.uestcUndergraduate:
await _openUndergraduate(exams: exams, chooseTerm: chooseTerm);
}
} finally {
_openingSchool = false;
}
}
Future<void> _openSchool({
bool exams = false,
bool chooseTerm = false,
}) async {
if (widget.schoolBuilder != null) {
final savedTerm = widget.controller.snapshot.schoolTerm;
final term = savedTerm?.school == SupportedSchool.uestcGraduate
? savedTerm
: null;
if (exams) {
await widget.school?.openExams(
term: term,
chooseTerm: chooseTerm || term == null,
);
} else {
await widget.school?.openTimetable(
term: term,
chooseTerm: chooseTerm || term == null,
);
}
if (!mounted) return;
await Navigator.push(
context,
MaterialPageRoute<void>(builder: (_) => widget.schoolBuilder!()),
);
} else {
await showDialog<void>(
context: context,
builder: (context) => AlertDialog(
title: const Text('学校认证'),
content: const Text('学校认证入口正在接入。你可以先体验示例课表或导入课表文件。'),
actions: [
TextButton(
onPressed: () => Navigator.pop(context),
child: const Text('知道了'),
),
],
),
);
}
}
Future<void> _openUndergraduate({
required bool exams,
required bool chooseTerm,
}) async {
final session = widget.undergraduate, builder = widget.undergraduateBuilder;
if (session == null || builder == null) {
await showDialog<void>(
context: context,
builder: (context) => AlertDialog(
title: const Text('学校连接'),
content: const Text('本科连接暂未准备好,请重试。'),
actions: [
TextButton(
onPressed: () => Navigator.pop(context),
child: const Text('知道了'),
),
],
),
);
return;
}
if (exams) {
var query = UndergraduateExamQuery.fromSchedule(
widget.controller.snapshot.examSchedule,
);
if (query == null || chooseTerm) {
query = await showUndergraduateExamQueryPicker(
context,
initial: query,
now: widget.controller.clock(),
);
if (!mounted || query == null) return;
}
await session.openExams(query);
} else {
await session.openTimetable();
}
if (!mounted) return;
await Navigator.push(
context,
MaterialPageRoute<void>(builder: (_) => builder()),
);
session.setReadingActive(false);
}
Future<void> _logout() async {
final choice = await showDialog<int>(
context: context,
builder: (context) => AlertDialog(
title: const Text('退出学校登录'),
content: const Text('已导入的课表和考试信息是否保留在手机中?'),
actions: [
TextButton(
onPressed: () => Navigator.pop(context, 0),
child: const Text('取消'),
),
TextButton(
onPressed: () => Navigator.pop(context, 1),
child: const Text('保留课表和考试'),
),
TextButton(
onPressed: () => Navigator.pop(context, 2),
child: const Text('清除课表和考试'),
),
],
),
);
if (choice == null || choice == 0) return;
if (_knownSchool == SupportedSchool.uestcUndergraduate &&
widget.undergraduate?.canLogout == true) {
await widget.undergraduate!.logout();
widget.school?.invalidateAuthentication();
} else if (widget.school?.canLogout == true) {
await widget.school!.logout();
widget.undergraduate?.invalidateAuthentication();
} else if (widget.undergraduate?.canLogout == true) {
await widget.undergraduate!.logout();
widget.school?.invalidateAuthentication();
}
if (choice == 2) {
await widget.controller.clearCourses();
await widget.controller.clearExams();
}
}
Future<void> _startFresh() async {
final confirmed = await showDialog<bool>(
context: context,
builder: (context) => AlertDialog(
title: const Text('重新建立课表'),
content: const Text(
'损坏文件会保留为恢复副本,然后重新建立空课表。已有课程通知会取消;手机日历中原有课程日程需手动处理。',
),
actions: [
TextButton(
onPressed: () => Navigator.pop(context, false),
child: const Text('取消'),
),
FilledButton(
onPressed: () => Navigator.pop(context, true),
child: const Text('保留损坏文件并重新建立'),
),
],
),
);
if (confirmed == true) {
await widget.controller.startFreshData();
}
}
@override
Widget build(BuildContext context) => AnimatedBuilder(
animation: Listenable.merge([
widget.controller,
if (widget.school != null) widget.school!,
if (widget.undergraduate != null) widget.undergraduate!,
]),
builder: (context, _) => Scaffold(
body: Container(
decoration: const BoxDecoration(
gradient: LinearGradient(
begin: Alignment.topLeft,
end: Alignment.bottomRight,
colors: [Color(0xFFF0F6FF), Color(0xFFF7FAFF), Color(0xFFEDF4FF)],
),
),
child: SafeArea(
bottom: false,
child: Stack(
children: [
Positioned.fill(
child: Column(
children: [
if (widget.controller.lastError != null)
Container(
width: double.infinity,
color: const Color(0xFFF8ECE6),
padding: const EdgeInsets.all(12),
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
Text(
widget.controller.lastError!,
style: const TextStyle(fontSize: 12),
),
if (!widget.controller.storageReady)
TextButton(
onPressed: widget.controller.restoreBackup,
child: const Text('恢复最近备份'),
),
if (!widget.controller.storageReady)
TextButton(
onPressed: _startFresh,
child: const Text('重新建立课表'),
),
],
),
),
Expanded(
child: TabDeck(
index: _tab,
children: [
AdaptivePage(
maxWidth: 1440,
child: TimetablePage(
controller: widget.controller,
onSync: _school,
),
),
AdaptivePage(
child: ExamsPage(
controller: widget.controller,
onSync: () {
_school(exams: true);
},
onQueryOptions:
_knownSchool ==
SupportedSchool.uestcUndergraduate
? () => _school(exams: true, chooseTerm: true)
: null,
),
),
AdaptivePage(
child: ProfilePage(
controller: widget.controller,
feedbackSender: widget.feedbackSender,
onCheckUpdates: widget.updateService == null
? null
: () => _checkUpdate(),
checkingUpdates: _checkingUpdate,
onLogin: () => _school(selectSchool: true),
schoolName: _knownSchool?.label,
onUpdateTerm: () => _school(chooseTerm: true),
authStatus:
_knownSchool ==
SupportedSchool.uestcUndergraduate
? widget.undergraduate?.statusLabel ?? '未登录'
: widget.school?.statusLabel ?? '未登录',
logoutLabel:
widget.school?.logoutFailed == true ||
widget.undergraduate?.logoutFailed == true
? '重试退出学校登录'
: '退出学校登录',
onLogout:
widget.school?.canLogout == true ||
widget.undergraduate?.canLogout == true
? _logout
: null,
),
),
],
),
),
],
),
),
Positioned(
left: 0,
right: 0,
bottom: 16 + MediaQuery.paddingOf(context).bottom,
child: Center(
child: GlassDock(
key: const Key('floating-dock'),
selectedIndex: _tab,
onSelected: _selectTab,
),
),
),
],
),
),
),
),
);
}