feat: add undergraduate import and exam selection screens
This commit is contained in:
Codex
@@ -0,0 +1,227 @@
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import 'package:flutter/material.dart';
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import 'package:webview_flutter/webview_flutter.dart';
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import '../../../app/app_controller.dart';
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import '../../../data/json_schedule_import.dart';
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import '../../../domain/exam_schedule.dart';
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import '../../profile/import_preview.dart';
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import 'session.dart';
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import 'exam_query_picker.dart';
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class UndergraduateAuthPage extends StatefulWidget {
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const UndergraduateAuthPage({
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super.key,
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required this.session,
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required this.controller,
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});
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final UndergraduateSession session;
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final AppController controller;
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@override
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State<UndergraduateAuthPage> createState() => _UndergraduateAuthPageState();
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}
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class _UndergraduateAuthPageState extends State<UndergraduateAuthPage> {
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bool _saving = false;
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Object? _handled;
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String? _saveError;
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@override
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void initState() {
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super.initState();
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widget.session.addListener(_changed);
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WidgetsBinding.instance.addPostFrameCallback((_) {
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if (mounted) {
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widget.session.setReadingActive(true);
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_changed();
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}
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});
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}
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void _changed() {
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if (!mounted) return;
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setState(() {});
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final s = widget.session, result = s.pendingDraft ?? s.pendingExams;
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if (_saving || result == null || identical(_handled, result)) return;
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_handled = result;
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_saving = true;
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final generation = s.pageGeneration;
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WidgetsBinding.instance.addPostFrameCallback((_) async {
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if (!mounted) return;
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await _save(s.pendingDraft, s.pendingExams, generation);
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});
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}
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Future<void> _save(
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ImportDraft? draft,
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ExamSchedule? exams,
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int generation,
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) async {
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final s = widget.session,
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controller = widget.controller,
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route = ModalRoute.of(context);
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bool current() =>
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mounted &&
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route?.isActive == true &&
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generation == s.pageGeneration &&
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identical(draft, s.pendingDraft) &&
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identical(exams, s.pendingExams);
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try {
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if (!current()) return;
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var saved = false;
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if (draft != null) {
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final replacement =
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controller.snapshot.courses.isNotEmpty &&
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controller.snapshot.schoolTerm != draft.schoolTerm;
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if (replacement || draft.courses.isEmpty) {
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final confirmed = await showModalBottomSheet<bool>(
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context: context,
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isScrollControlled: true,
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showDragHandle: true,
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builder: (_) => ImportPreview(
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draft: draft,
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controller: controller,
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canApply: current,
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),
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);
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if (!current()) return;
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saved = confirmed == true;
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} else {
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await controller.applyImport(
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draft,
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confirmedEmpty: false,
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canApply: current,
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);
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saved = controller.lastError == null;
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}
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} else if (exams != null) {
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await controller.applyExams(exams, canApply: current);
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saved = controller.lastError == null;
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}
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if (!current()) return;
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if (saved && s.saved(generation: generation)) {
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final messenger = ScaffoldMessenger.of(context);
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if (route?.isCurrent == true) Navigator.pop(context);
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messenger.showSnackBar(
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SnackBar(
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content: Text(exams == null ? '课表已导入，请核对学期开始日。' : '考试信息已更新'),
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),
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);
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} else if (controller.lastError != null) {
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_saveError = controller.lastError;
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}
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} finally {
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_saving = false;
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if (mounted) _changed();
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}
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}
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@override
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void dispose() {
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widget.session.removeListener(_changed);
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widget.session.setReadingActive(false);
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super.dispose();
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}
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Future<void> _changeQuery() async {
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final value = await showUndergraduateExamQueryPicker(
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context,
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initial: widget.session.query,
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now: widget.controller.clock(),
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);
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if (!mounted || value == null) return;
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_handled = null;
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_saveError = null;
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await widget.session.openExams(value);
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}
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@override
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Widget build(BuildContext context) {
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final s = widget.session;
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return Scaffold(
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appBar: AppBar(
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title: Text(s.requestingExams ? '本科考试查询' : '本科课表导入'),
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actions: [
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if (s.requestingExams)
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IconButton(
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tooltip: '查询选项',
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onPressed: _saving ? null : _changeQuery,
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icon: const Icon(Icons.tune_rounded),
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),
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IconButton(
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tooltip: '重新认证',
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onPressed: _saving
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? null
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: () {
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_handled = null;
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_saveError = null;
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s.reauthenticate();
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},
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icon: const Icon(Icons.refresh_rounded),
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),
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],
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),
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body: Column(
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children: [
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if (s.busy || _saving) const LinearProgressIndicator(minHeight: 2),
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Container(
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width: double.infinity,
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padding: const EdgeInsets.all(12),
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color: const Color(0xFFEFF6FF),
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child: Text(
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s.message,
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style: const TextStyle(fontSize: 12, height: 1.5),
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),
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),
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if (s.requestingExams && s.query != null)
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Padding(
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padding: const EdgeInsets.all(8),
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child: Text(
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'${s.query!.term.label} · ${s.query!.orderedTypes.map((t) => t.label).join('、')}',
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style: const TextStyle(fontSize: 12),
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),
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),
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if (_saveError != null)
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Padding(
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padding: const EdgeInsets.all(8),
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child: Column(
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children: [
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Text(_saveError!, style: const TextStyle(fontSize: 12)),
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TextButton(
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onPressed: _saving
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? null
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: () {
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_saveError = null;
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_handled = null;
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_changed();
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},
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child: const Text('重试保存'),
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),
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],
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),
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),
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Expanded(child: WebViewWidget(controller: s.web)),
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if (!s.requestingExams)
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SafeArea(
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top: false,
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child: Padding(
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padding: const EdgeInsets.fromLTRB(16, 8, 16, 10),
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child: SizedBox(
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width: double.infinity,
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child: FilledButton.icon(
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onPressed: _saving || s.busy
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? null
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: () {
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_handled = null;
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_saveError = null;
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s.readCurrentTimetable();
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},
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icon: const Icon(Icons.download_rounded),
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label: const Text('导入当前课表'),
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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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