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feat: calendar subscription & fix: wrong termBegin date #68

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a3a1f98
feat: calendar subscription
GregTaoo Jun 4, 2026
3a0e747
feat(ios): open calendar subscription via system calendar
GregTaoo Jun 4, 2026
579edea
feat: add semesterId for creating calendar subscriptions
GregTaoo Jun 6, 2026
3b752f2
fix: semester info
GregTaoo Jun 6, 2026
d86d5f4
feat: add consent checkbox for calendar subscription
GregTaoo Jun 6, 2026
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53 changes: 53 additions & 0 deletions lib/models/course_table.dart
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Original file line number Diff line number Diff line change
Expand Up @@ -201,6 +201,20 @@ class SemesterInfo {
return null;
}

SemesterTerm? findSemesterTerm(String semesterId) {
for (final yearEntry in semesters.entries) {
for (final semEntry in yearEntry.value.entries) {
if (semEntry.value != semesterId) continue;

final year = yearEntry.key.split('-').first;
final semester = _semesterNumberForTermName(semEntry.key);
if (semester == null) return null;
return SemesterTerm(year: year, semester: semester);
}
}
return null;
}

List<MapEntry<String, String>> get allSemesters {
final result = <MapEntry<String, String>>[];
for (final yearEntry in semesters.entries) {
Expand All @@ -212,6 +226,45 @@ class SemesterInfo {
}
return result;
}

static String? _semesterNumberForTermName(String termName) {
final normalized = termName.trim().toLowerCase();
if (normalized.isEmpty) return null;

if (normalized == '1' ||
normalized.contains('春') ||
normalized.contains('下') ||
normalized.contains('第二') ||
normalized.contains('spring')) {
return '1';
}

if (normalized == '2' ||
normalized.contains('秋') ||
normalized.contains('上') ||
normalized.contains('第一') ||
normalized.contains('fall') ||
normalized.contains('autumn')) {
return '2';
}

if (normalized == '3' ||
normalized.contains('夏') ||
normalized.contains('暑') ||
normalized.contains('第三') ||
normalized.contains('summer')) {
return '3';
}

return null;
}
}

class SemesterTerm {
final String year;
final String semester;

const SemesterTerm({required this.year, required this.semester});
}

/// Convert EamsCourse list to display Course list, grouping consecutive periods.
Expand Down
241 changes: 230 additions & 11 deletions lib/pages/schedule_page.dart
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Original file line number Diff line number Diff line change
Expand Up @@ -36,6 +36,7 @@ class _SchedulePageState extends State<SchedulePage> {
int _currentWeek = 1;
bool _initialized = false;
bool _exportingCalendar = false;
bool _subscribingCalendar = false;

// Settings
bool _showSaturday = true;
Expand Down Expand Up @@ -350,6 +351,197 @@ class _SchedulePageState extends State<SchedulePage> {
unawaited(_exportCalendar());
}

void _startSubscribeCalendar() {
if (_subscribingCalendar) return;
unawaited(_confirmAndSubscribeCalendar());
}

Future<void> _confirmAndSubscribeCalendar() async {
final confirmed = await showDialog<bool>(
context: context,
builder: (dialogContext) {
var credentialStorageAgreed = false;

return StatefulBuilder(
builder: (context, setDialogState) {
return AlertDialog(
title: const Text('创建日历订阅'),
content: Column(
mainAxisSize: MainAxisSize.min,
crossAxisAlignment: CrossAxisAlignment.stretch,
children: [
const Text('如果你之前已经订阅过该学期，之前的订阅链接将会失效。'),
const SizedBox(height: 8),
CheckboxListTile(
value: credentialStorageAgreed,
onChanged: (value) {
setDialogState(() {
credentialStorageAgreed = value ?? false;
});
},
title: Text(
'您理解并同意：订阅日历时，您的登录凭据将会被加密存储到服务器内，并用于课表订阅服务',
style: Theme.of(context).textTheme.bodySmall,
),
controlAffinity: ListTileControlAffinity.leading,
contentPadding: EdgeInsets.zero,
),
],
),
actions: [
TextButton(
onPressed: () => Navigator.of(dialogContext).pop(false),
child: const Text('取消'),
),
FilledButton(
onPressed: credentialStorageAgreed
? () => Navigator.of(dialogContext).pop(true)
: null,
child: const Text('确定'),
),
],
);
},
);
},
);

if (confirmed != true || !mounted) return;
await _subscribeCalendar();
}

Future<void> _subscribeCalendar() async {
if (_subscribingCalendar) return;

setState(() {
_subscribingCalendar = true;
});

try {
final semesterId = _schedule.selectedSemesterId;
if (semesterId == null || semesterId.isEmpty) {
throw Exception('Missing semesterId');
}
final auth = ServiceProvider.of(context).authService;
final result = await auth.createCalendarSubscription(
semesterId: semesterId,
);

final data = result['data'] as Map<String, dynamic>?;
final subscribeUrl = data?['subscribeUrl'] as String?;
if (!mounted) return;
if (subscribeUrl?.isNotEmpty == true) {
if (isIos() && await _openIosCalendarSubscription(subscribeUrl!)) {
if (!mounted) return;
showAdaptiveFeedback(
context: context,
message: '已打开系统日历订阅',
style: AdaptiveFeedbackStyle.success,
);
return;
}
await _copyCalendarSubscriptionUrl(subscribeUrl!);
return;
}

showAdaptiveFeedback(
context: context,
message: '日历订阅已创建',
style: AdaptiveFeedbackStyle.success,
);
} catch (_) {
if (!mounted) return;
showAdaptiveFeedback(
context: context,
message: '创建日历订阅失败',
style: AdaptiveFeedbackStyle.error,
);
} finally {
if (mounted) {
setState(() {
_subscribingCalendar = false;
});
}
}
}

Future<bool> _openIosCalendarSubscription(String subscribeUrl) async {
final uri = Uri.tryParse(subscribeUrl);
if (uri == null) return false;

final calendarUri = uri.scheme == 'https' || uri.scheme == 'http'
? uri.replace(scheme: 'webcal')
: uri;

try {
return launchUrl(calendarUri, mode: LaunchMode.externalApplication);
} catch (_) {
return false;
}
}

Future<void> _copyCalendarSubscriptionUrl(String subscribeUrl) async {
try {
await Clipboard.setData(ClipboardData(text: subscribeUrl));
if (!mounted) return;
showAdaptiveFeedback(
context: context,
message: '日历订阅链接已复制到剪贴板',
style: AdaptiveFeedbackStyle.success,
);
} catch (_) {
if (!mounted) return;
showAdaptiveFeedback(
context: context,
message: '无法自动复制，请手动复制订阅链接',
style: AdaptiveFeedbackStyle.info,
);
await _showManualCalendarSubscriptionCopy(subscribeUrl);
}
}

Future<void> _showManualCalendarSubscriptionCopy(String subscribeUrl) async {
final controller = TextEditingController(text: subscribeUrl);
final focusNode = FocusNode();
try {
await showDialog<void>(
context: context,
builder: (dialogContext) {
return AlertDialog(
title: const Text('手动复制订阅链接'),
content: TextField(
controller: controller,
focusNode: focusNode,
readOnly: true,
autofocus: false,
showCursor: false,
keyboardType: TextInputType.none,
enableInteractiveSelection: true,
maxLines: 3,
minLines: 1,
decoration: const InputDecoration(
labelText: '订阅链接',
border: OutlineInputBorder(),
),
onTap: () {
unawaited(_dismissKeyboard());
},
),
actions: [
FilledButton(
onPressed: () => Navigator.of(dialogContext).pop(),
child: const Text('完成'),
),
],
);
},
);
} finally {
focusNode.dispose();
controller.dispose();
}
}

Future<SavedIcsFile> _saveCalendarFile(
IcsSaveLocation location, {
required String calendarName,
Expand Down Expand Up @@ -601,6 +793,13 @@ class _SchedulePageState extends State<SchedulePage> {
? 'arrow.triangle.2.circlepath'
: 'square.and.arrow.up',
),
IosNativeNavigationBarMenuItem(
value: 'subscribeCalendar',
title: _subscribingCalendar ? '正在创建订阅…' : '订阅日历',
sfSymbol: _subscribingCalendar
? 'arrow.triangle.2.circlepath'
: 'calendar.badge.plus',
),
],
),
],
Expand Down Expand Up @@ -665,17 +864,6 @@ class _SchedulePageState extends State<SchedulePage> {
tooltip: 'Next week',
onPressed: _nextWeek,
),
IconButton(
tooltip: _exportingCalendar ? '正在导出课表' : '导出课表',
onPressed: _exportingCalendar ? null : _startExportCalendar,
icon: _exportingCalendar
? const SizedBox(
width: 20,
height: 20,
child: CircularProgressIndicator(strokeWidth: 2),
)
: const Icon(Icons.ios_share_rounded),
),
if (isDesktopLayout(context))
IconButton(
key: _viewSettingsAnchorKey,
Expand Down Expand Up @@ -708,6 +896,19 @@ class _SchedulePageState extends State<SchedulePage> {
checked: _showGhostCourses,
child: const Text('显示非本周课程'),
),
const PopupMenuDivider(),
PopupMenuItem(
value: 'exportCalendar',
enabled: !_exportingCalendar,
child: Text(_exportingCalendar ? '正在导出…' : '导出课表'),
),
PopupMenuItem(
value: 'subscribeCalendar',
enabled: !_subscribingCalendar,
child: Text(
_subscribingCalendar ? '正在创建订阅…' : '订阅日历',
),
),
],
),
],
Expand Down Expand Up @@ -884,6 +1085,8 @@ class _SchedulePageState extends State<SchedulePage> {
});
case 'exportCalendar':
_startExportCalendar();
case 'subscribeCalendar':
_startSubscribeCalendar();
}
}

Expand Down Expand Up @@ -969,6 +1172,22 @@ class _SchedulePageState extends State<SchedulePage> {
_startExportCalendar();
},
),
DesktopMenuRow(
leading: _subscribingCalendar
? const SizedBox(
width: 18,
height: 18,
child: CircularProgressIndicator(strokeWidth: 2),
)
: const Icon(Icons.calendar_month_outlined, size: 20),
title: Text('订阅日历', style: theme.textTheme.bodyMedium),
onTap: _subscribingCalendar
? null
: () {
close();
_startSubscribeCalendar();
},
),
],
);
},
Expand Down
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