142 lines
4.0 KiB
Dart
142 lines
4.0 KiB
Dart
import 'package:json_annotation/json_annotation.dart';
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part 'learning_session_model.g.dart';
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/// 学习难度
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enum StudyDifficulty {
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@JsonValue('forgot')
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forgot, // 完全忘记
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@JsonValue('hard')
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hard, // 困难
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@JsonValue('good')
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good, // 一般
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@JsonValue('easy')
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easy, // 容易
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@JsonValue('perfect')
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perfect, // 完美
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}
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/// 学习会话
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@JsonSerializable()
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class LearningSession {
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@JsonKey(fromJson: _idFromJson)
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final String id;
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@JsonKey(name: 'user_id', fromJson: _userIdFromJson)
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final String userId;
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@JsonKey(name: 'book_id')
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final String bookId;
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@JsonKey(name: 'daily_goal')
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final int dailyGoal;
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@JsonKey(name: 'new_words_count')
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final int newWordsCount;
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@JsonKey(name: 'review_count')
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final int reviewCount;
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@JsonKey(name: 'mastered_count')
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final int masteredCount;
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@JsonKey(name: 'started_at')
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final DateTime startedAt;
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@JsonKey(name: 'completed_at')
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final DateTime? completedAt;
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const LearningSession({
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required this.id,
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required this.userId,
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required this.bookId,
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required this.dailyGoal,
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this.newWordsCount = 0,
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this.reviewCount = 0,
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this.masteredCount = 0,
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required this.startedAt,
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this.completedAt,
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});
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factory LearningSession.fromJson(Map<String, dynamic> json) =>
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_$LearningSessionFromJson(json);
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Map<String, dynamic> toJson() => _$LearningSessionToJson(this);
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static String _idFromJson(dynamic value) => value.toString();
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static String _userIdFromJson(dynamic value) => value.toString();
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}
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/// 今日学习任务
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@JsonSerializable()
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class DailyLearningTasks {
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@JsonKey(name: 'newWords')
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final List<int> newWords; // 新单词ID列表
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@JsonKey(name: 'reviewWords', fromJson: _reviewWordsFromJson)
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final List<dynamic> reviewWords; // 复习单词进度列表
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@JsonKey(name: 'masteredCount')
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final int masteredCount; // 已掌握数量
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@JsonKey(name: 'totalWords')
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final int totalWords; // 总单词数
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final double progress; // 整体进度百分比
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const DailyLearningTasks({
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required this.newWords,
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required this.reviewWords,
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required this.masteredCount,
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required this.totalWords,
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required this.progress,
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});
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factory DailyLearningTasks.fromJson(Map<String, dynamic> json) =>
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_$DailyLearningTasksFromJson(json);
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Map<String, dynamic> toJson() => _$DailyLearningTasksToJson(this);
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/// 待学习总数
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int get totalTasks => newWords.length + reviewWords.length;
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/// 是否完成
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bool get isCompleted => totalTasks == 0;
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static List<dynamic> _reviewWordsFromJson(dynamic value) {
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if (value == null) return [];
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if (value is List) return value;
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return [];
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}
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}
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/// 学习统计
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@JsonSerializable()
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class LearningStatistics {
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final int todayNewWords; // 今日新学单词数
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final int todayReview; // 今日复习单词数
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final int todayMastered; // 今日掌握单词数
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final int totalLearned; // 总学习单词数
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final int totalMastered; // 总掌握单词数
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final double avgProficiency; // 平均熟练度
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final int streakDays; // 连续学习天数
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const LearningStatistics({
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required this.todayNewWords,
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required this.todayReview,
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required this.todayMastered,
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required this.totalLearned,
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required this.totalMastered,
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required this.avgProficiency,
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required this.streakDays,
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});
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factory LearningStatistics.fromJson(Map<String, dynamic> json) =>
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_$LearningStatisticsFromJson(json);
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Map<String, dynamic> toJson() => _$LearningStatisticsToJson(this);
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}
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/// 学习结果
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@JsonSerializable()
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class StudyResult {
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final String wordId;
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final StudyDifficulty difficulty;
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final int studyTime; // 学习时长（毫秒）
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const StudyResult({
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required this.wordId,
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required this.difficulty,
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required this.studyTime,
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});
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factory StudyResult.fromJson(Map<String, dynamic> json) =>
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_$StudyResultFromJson(json);
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Map<String, dynamic> toJson() => _$StudyResultToJson(this);
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}
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