马良AI写作初始化仓库

AINoval/lib/models/novel_snippet.dart

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+import 'package:json_annotation/json_annotation.dart';
+import 'package:ainoval/utils/date_time_parser.dart';
+
+part 'novel_snippet.g.dart';
+
+/// 小说片段模型
+@JsonSerializable()
+class NovelSnippet {
+  final String id;
+  final String userId;
+  final String novelId;
+  final String title;
+  final String content;
+  final InitialGenerationInfo? initialGenerationInfo;
+  final List<String>? tags;
+  final String? category;
+  final String? notes;
+  final SnippetMetadata metadata;
+  final bool isFavorite;
+  final String status;
+  final int version;
+  
+  @JsonKey(fromJson: parseBackendDateTime, toJson: _dateTimeToJson)
+  final DateTime createdAt;
+  
+  @JsonKey(fromJson: parseBackendDateTime, toJson: _dateTimeToJson)
+  final DateTime updatedAt;
+
+  const NovelSnippet({
+    required this.id,
+    required this.userId,
+    required this.novelId,
+    required this.title,
+    required this.content,
+    this.initialGenerationInfo,
+    this.tags,
+    this.category,
+    this.notes,
+    required this.metadata,
+    required this.isFavorite,
+    required this.status,
+    required this.version,
+    required this.createdAt,
+    required this.updatedAt,
+  });
+
+  factory NovelSnippet.fromJson(Map<String, dynamic> json) =>
+      _$NovelSnippetFromJson(json);
+
+  Map<String, dynamic> toJson() => _$NovelSnippetToJson(this);
+
+  static String _dateTimeToJson(DateTime dateTime) => dateTime.toIso8601String();
+
+  NovelSnippet copyWith({
+    String? id,
+    String? userId,
+    String? novelId,
+    String? title,
+    String? content,
+    InitialGenerationInfo? initialGenerationInfo,
+    List<String>? tags,
+    String? category,
+    String? notes,
+    SnippetMetadata? metadata,
+    bool? isFavorite,
+    String? status,
+    int? version,
+    DateTime? createdAt,
+    DateTime? updatedAt,
+  }) {
+    return NovelSnippet(
+      id: id ?? this.id,
+      userId: userId ?? this.userId,
+      novelId: novelId ?? this.novelId,
+      title: title ?? this.title,
+      content: content ?? this.content,
+      initialGenerationInfo: initialGenerationInfo ?? this.initialGenerationInfo,
+      tags: tags ?? this.tags,
+      category: category ?? this.category,
+      notes: notes ?? this.notes,
+      metadata: metadata ?? this.metadata,
+      isFavorite: isFavorite ?? this.isFavorite,
+      status: status ?? this.status,
+      version: version ?? this.version,
+      createdAt: createdAt ?? this.createdAt,
+      updatedAt: updatedAt ?? this.updatedAt,
+    );
+  }
+}
+
+/// 初始生成信息
+@JsonSerializable()
+class InitialGenerationInfo {
+  final String? sourceChapterId;
+  final String? sourceSceneId;
+
+  const InitialGenerationInfo({
+    this.sourceChapterId,
+    this.sourceSceneId,
+  });
+
+  factory InitialGenerationInfo.fromJson(Map<String, dynamic> json) =>
+      _$InitialGenerationInfoFromJson(json);
+
+  Map<String, dynamic> toJson() => _$InitialGenerationInfoToJson(this);
+}
+
+/// 片段元数据
+@JsonSerializable()
+class SnippetMetadata {
+  final int wordCount;
+  final int characterCount;
+  final int viewCount;
+  final int sortWeight;
+  
+  @JsonKey(fromJson: _parseOptionalDateTime, toJson: _optionalDateTimeToJson)
+  final DateTime? lastViewedAt;
+
+  const SnippetMetadata({
+    required this.wordCount,
+    required this.characterCount,
+    required this.viewCount,
+    required this.sortWeight,
+    this.lastViewedAt,
+  });
+
+  factory SnippetMetadata.fromJson(Map<String, dynamic> json) =>
+      _$SnippetMetadataFromJson(json);
+
+  Map<String, dynamic> toJson() => _$SnippetMetadataToJson(this);
+  
+  static DateTime? _parseOptionalDateTime(dynamic value) {
+    return value == null ? null : parseBackendDateTime(value);
+  }
+  
+  static String? _optionalDateTimeToJson(DateTime? dateTime) {
+    return dateTime?.toIso8601String();
+  }
+}
+
+/// 小说片段历史记录
+@JsonSerializable()
+class NovelSnippetHistory {
+  final String id;
+  final String snippetId;
+  final String userId;
+  final String operationType;
+  final int version;
+  final String? beforeTitle;
+  final String? afterTitle;
+  final String? beforeContent;
+  final String? afterContent;
+  final String? changeDescription;
+  
+  @JsonKey(fromJson: parseBackendDateTime, toJson: _dateTimeToJson)
+  final DateTime createdAt;
+
+  const NovelSnippetHistory({
+    required this.id,
+    required this.snippetId,
+    required this.userId,
+    required this.operationType,
+    required this.version,
+    this.beforeTitle,
+    this.afterTitle,
+    this.beforeContent,
+    this.afterContent,
+    this.changeDescription,
+    required this.createdAt,
+  });
+
+  factory NovelSnippetHistory.fromJson(Map<String, dynamic> json) =>
+      _$NovelSnippetHistoryFromJson(json);
+
+  Map<String, dynamic> toJson() => _$NovelSnippetHistoryToJson(this);
+  
+  static String _dateTimeToJson(DateTime dateTime) => dateTime.toIso8601String();
+}
+
+/// 分页结果包装类
+@JsonSerializable(genericArgumentFactories: true)
+class SnippetPageResult<T> {
+  final List<T> content;
+  final int page;
+  final int size;
+  final int totalElements;
+  final int totalPages;
+  final bool hasNext;
+  final bool hasPrevious;
+
+  const SnippetPageResult({
+    required this.content,
+    required this.page,
+    required this.size,
+    required this.totalElements,
+    required this.totalPages,
+    required this.hasNext,
+    required this.hasPrevious,
+  });
+
+  factory SnippetPageResult.fromJson(
+    Map<String, dynamic> json,
+    T Function(Object? json) fromJsonT,
+  ) =>
+      _$SnippetPageResultFromJson(json, fromJsonT);
+
+  Map<String, dynamic> toJson(Object? Function(T value) toJsonT) =>
+      _$SnippetPageResultToJson(this, toJsonT);
+}
+
+/// 创建片段请求
+@JsonSerializable()
+class CreateSnippetRequest {
+  final String novelId;
+  final String title;
+  final String content;
+  final String? sourceChapterId;
+  final String? sourceSceneId;
+  final List<String>? tags;
+  final String? category;
+  final String? notes;
+
+  const CreateSnippetRequest({
+    required this.novelId,
+    required this.title,
+    required this.content,
+    this.sourceChapterId,
+    this.sourceSceneId,
+    this.tags,
+    this.category,
+    this.notes,
+  });
+
+  factory CreateSnippetRequest.fromJson(Map<String, dynamic> json) =>
+      _$CreateSnippetRequestFromJson(json);
+
+  Map<String, dynamic> toJson() => _$CreateSnippetRequestToJson(this);
+}
+
+/// 更新片段内容请求
+@JsonSerializable()
+class UpdateSnippetContentRequest {
+  final String snippetId;
+  final String content;
+  final String? changeDescription;
+
+  const UpdateSnippetContentRequest({
+    required this.snippetId,
+    required this.content,
+    this.changeDescription,
+  });
+
+  factory UpdateSnippetContentRequest.fromJson(Map<String, dynamic> json) =>
+      _$UpdateSnippetContentRequestFromJson(json);
+
+  Map<String, dynamic> toJson() => _$UpdateSnippetContentRequestToJson(this);
+}
+
+/// 更新片段标题请求
+@JsonSerializable()
+class UpdateSnippetTitleRequest {
+  final String snippetId;
+  final String title;
+  final String? changeDescription;
+
+  const UpdateSnippetTitleRequest({
+    required this.snippetId,
+    required this.title,
+    this.changeDescription,
+  });
+
+  factory UpdateSnippetTitleRequest.fromJson(Map<String, dynamic> json) =>
+      _$UpdateSnippetTitleRequestFromJson(json);
+
+  Map<String, dynamic> toJson() => _$UpdateSnippetTitleRequestToJson(this);
+}
+
+/// 更新收藏状态请求
+@JsonSerializable()
+class UpdateSnippetFavoriteRequest {
+  final String snippetId;
+  final bool isFavorite;
+
+  const UpdateSnippetFavoriteRequest({
+    required this.snippetId,
+    required this.isFavorite,
+  });
+
+  factory UpdateSnippetFavoriteRequest.fromJson(Map<String, dynamic> json) =>
+      _$UpdateSnippetFavoriteRequestFromJson(json);
+
+  Map<String, dynamic> toJson() => _$UpdateSnippetFavoriteRequestToJson(this);
+}
+
+/// 回退版本请求
+@JsonSerializable()
+class RevertSnippetVersionRequest {
+  final String snippetId;
+  final int version;
+  final String? changeDescription;
+
+  const RevertSnippetVersionRequest({
+    required this.snippetId,
+    required this.version,
+    this.changeDescription,
+  });
+
+  factory RevertSnippetVersionRequest.fromJson(Map<String, dynamic> json) =>
+      _$RevertSnippetVersionRequestFromJson(json);
+
+  Map<String, dynamic> toJson() => _$RevertSnippetVersionRequestToJson(this);
+}