138 lines
3.8 KiB
Dart
138 lines
3.8 KiB
Dart
class ReadingArticle {
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final String id;
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final String title;
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final String content;
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final String category;
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final String difficulty;
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final int wordCount;
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final int estimatedReadingTime; // in minutes
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final List<String> tags;
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final String source;
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final DateTime publishDate;
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final bool isCompleted;
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final double? comprehensionScore;
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final int? readingTime; // actual reading time in seconds
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const ReadingArticle({
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required this.id,
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required this.title,
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required this.content,
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required this.category,
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required this.difficulty,
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required this.wordCount,
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required this.estimatedReadingTime,
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required this.tags,
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required this.source,
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required this.publishDate,
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this.isCompleted = false,
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this.comprehensionScore,
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this.readingTime,
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});
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factory ReadingArticle.fromJson(Map<String, dynamic> json) {
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return ReadingArticle(
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id: json['id'] as String,
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title: json['title'] as String,
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content: json['content'] as String,
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category: json['category'] as String,
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difficulty: json['difficulty'] as String,
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wordCount: json['wordCount'] as int,
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estimatedReadingTime: json['estimatedReadingTime'] as int,
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tags: List<String>.from(json['tags'] as List),
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source: json['source'] as String,
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publishDate: DateTime.parse(json['publishDate'] as String),
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isCompleted: json['isCompleted'] as bool? ?? false,
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comprehensionScore: json['comprehensionScore'] as double?,
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readingTime: json['readingTime'] as int?,
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);
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}
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Map<String, dynamic> toJson() {
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return {
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'id': id,
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'title': title,
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'content': content,
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'category': category,
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'difficulty': difficulty,
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'wordCount': wordCount,
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'estimatedReadingTime': estimatedReadingTime,
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'tags': tags,
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'source': source,
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'publishDate': publishDate.toIso8601String(),
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'isCompleted': isCompleted,
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'comprehensionScore': comprehensionScore,
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'readingTime': readingTime,
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};
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}
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ReadingArticle copyWith({
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String? id,
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String? title,
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String? content,
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String? category,
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String? difficulty,
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int? wordCount,
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int? estimatedReadingTime,
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List<String>? tags,
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String? source,
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DateTime? publishDate,
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bool? isCompleted,
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double? comprehensionScore,
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int? readingTime,
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}) {
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return ReadingArticle(
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id: id ?? this.id,
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title: title ?? this.title,
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content: content ?? this.content,
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category: category ?? this.category,
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difficulty: difficulty ?? this.difficulty,
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wordCount: wordCount ?? this.wordCount,
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estimatedReadingTime: estimatedReadingTime ?? this.estimatedReadingTime,
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tags: tags ?? this.tags,
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source: source ?? this.source,
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publishDate: publishDate ?? this.publishDate,
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isCompleted: isCompleted ?? this.isCompleted,
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comprehensionScore: comprehensionScore ?? this.comprehensionScore,
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readingTime: readingTime ?? this.readingTime,
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);
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}
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String get difficultyLabel {
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switch (difficulty.toLowerCase()) {
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case 'a1':
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case 'a2':
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return '初级';
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case 'b1':
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case 'b2':
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return '中级';
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case 'c1':
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case 'c2':
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return '高级';
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default:
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return '未知';
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}
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}
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String get categoryLabel {
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switch (category.toLowerCase()) {
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case 'cet4':
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return '四级阅读';
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case 'cet6':
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return '六级阅读';
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case 'toefl':
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return '托福阅读';
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case 'ielts':
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return '雅思阅读';
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case 'daily':
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return '日常阅读';
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case 'business':
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return '商务阅读';
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case 'academic':
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return '学术阅读';
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case 'news':
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return '新闻阅读';
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default:
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return category;
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}
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}
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} |