bookshelf/bookshelf_flutter/lib/models/book.dart

import 'book_status.dart';

// Book record - using Dart records as data classes
typedef Book = ({
  String id,
  String title,
  String author,
  String genre,
  String annotation,
  String? coverUrl,
  int? pages,
  String? language,
  int? publishedYear,
  double? rating,
  BookStatus status,
  int? progress,
  bool isFavorite,
});

// Helper function to create a Book record
Book createBook({
  required String id,
  required String title,
  required String author,
  required String genre,
  required String annotation,
  String? coverUrl,
  int? pages,
  String? language,
  int? publishedYear,
  double? rating,
  required BookStatus status,
  int? progress,
  required bool isFavorite,
}) {
  return (
    id: id,
    title: title,
    author: author,
    genre: genre,
    annotation: annotation,
    coverUrl: coverUrl,
    pages: pages,
    language: language,
    publishedYear: publishedYear,
    rating: rating,
    status: status,
    progress: progress,
    isFavorite: isFavorite,
  );
}

// Extension to create Book from partial data
extension BookExtension on Book {
  Book copyWith({
    String? id,
    String? title,
    String? author,
    String? genre,
    String? annotation,
    String? coverUrl,
    int? pages,
    String? language,
    int? publishedYear,
    double? rating,
    BookStatus? status,
    int? progress,
    bool? isFavorite,
  }) {
    return createBook(
      id: id ?? this.id,
      title: title ?? this.title,
      author: author ?? this.author,
      genre: genre ?? this.genre,
      annotation: annotation ?? this.annotation,
      coverUrl: coverUrl ?? this.coverUrl,
      pages: pages ?? this.pages,
      language: language ?? this.language,
      publishedYear: publishedYear ?? this.publishedYear,
      rating: rating ?? this.rating,
      status: status ?? this.status,
      progress: progress ?? this.progress,
      isFavorite: isFavorite ?? this.isFavorite,
    );
  }

  // Convert to JSON for storage/transport
  Map<String, dynamic> toJson() {
    return {
      'id': id,
      'title': title,
      'author': author,
      'genre': genre,
      'annotation': annotation,
      'coverUrl': coverUrl,
      'pages': pages,
      'language': language,
      'publishedYear': publishedYear,
      'rating': rating,
      'status': status.name,
      'progress': progress,
      'isFavorite': isFavorite,
    };
  }

  // Create Book from JSON
  static Book fromJson(Map<String, dynamic> json) {
    return (
      id: json['id'] as String,
      title: json['title'] as String,
      author: json['author'] as String,
      genre: json['genre'] as String,
      annotation: json['annotation'] as String,
      coverUrl: json['coverUrl'] as String?,
      pages: json['pages'] as int?,
      language: json['language'] as String?,
      publishedYear: json['publishedYear'] as int?,
      rating: (json['rating'] as num?)?.toDouble(),
      status: BookStatus.values.firstWhere(
        (e) => e.name == json['status'],
        orElse: () => BookStatus.wantToRead,
      ),
      progress: json['progress'] as int?,
      isFavorite: json['isFavorite'] as bool? ?? false,
    );
  }
}