83 lines
2.3 KiB
Dart
83 lines
2.3 KiB
Dart
class ExamRecord {
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const ExamRecord({
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required this.code,
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required this.name,
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this.assessment = '',
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this.candidate = '',
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this.sequence = '',
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this.room = '',
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this.seat = '',
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this.time = '',
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});
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final String code, name, assessment, candidate, sequence, room, seat, time;
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Map<String, dynamic> toJson() => {
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'code': code,
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'name': name,
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'assessment': assessment,
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'candidate': candidate,
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'sequence': sequence,
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'room': room,
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'seat': seat,
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'time': time,
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};
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factory ExamRecord.fromJson(Map<String, dynamic> json) {
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String field(String key) {
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final value = json[key];
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if (value is! String || value.length > 1000) {
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throw const FormatException('考试信息无效');
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}
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return value;
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}
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final record = ExamRecord(
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code: field('code'),
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name: field('name'),
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assessment: field('assessment'),
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candidate: field('candidate'),
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sequence: field('sequence'),
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room: field('room'),
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seat: field('seat'),
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time: field('time'),
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);
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if (record.code.isEmpty || record.name.isEmpty) {
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throw const FormatException('考试课程无效');
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}
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return record;
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}
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}
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class ExamSchedule {
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ExamSchedule({
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required this.semesterLabel,
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required this.termId,
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required List<ExamRecord> records,
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}) : records = List.unmodifiable(records);
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final String semesterLabel, termId;
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final List<ExamRecord> records;
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Map<String, dynamic> toJson() => {
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'semesterLabel': semesterLabel,
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'termId': termId,
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'records': records.map((r) => r.toJson()).toList(),
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};
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factory ExamSchedule.fromJson(Map<String, dynamic> json) {
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final label = json['semesterLabel'],
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id = json['termId'],
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rows = json['records'];
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if (label is! String ||
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label.trim().isEmpty ||
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id is! String ||
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!RegExp(r'^\d+$').hasMatch(id) ||
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rows is! List ||
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rows.length > 500) {
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throw const FormatException('考试列表无效');
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}
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final records = rows
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.map((r) => ExamRecord.fromJson(Map<String, dynamic>.from(r as Map)))
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.toList();
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if (records.map((r) => r.code).toSet().length != records.length) {
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throw const FormatException('考试课程重复');
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}
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return ExamSchedule(semesterLabel: label, termId: id, records: records);
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}
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}
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