class ProductNameOption {
  final int id;
  final String? code;
  final String name;
  final String? remark;

  const ProductNameOption({
    required this.id,
    this.code,
    required this.name,
    this.remark,
  });

  factory ProductNameOption.fromJson(Map<String, dynamic> json) =>
      ProductNameOption(
        id: (json['id'] as num).toInt(),
        code: json['code'] as String?,
        name: json['name'] as String,
        remark: json['remark'] as String?,
      );
}

class ProductSeriesOption {
  final int id;
  final String? code;
  final String name;
  final String? remark;

  const ProductSeriesOption({
    required this.id,
    this.code,
    required this.name,
    this.remark,
  });

  factory ProductSeriesOption.fromJson(Map<String, dynamic> json) =>
      ProductSeriesOption(
        id: (json['id'] as num).toInt(),
        code: json['code'] as String?,
        name: json['name'] as String,
        remark: json['remark'] as String?,
      );
}

class ProductSpecOption {
  final int id;
  final String? code;
  final String name;
  final int quantity;
  final String? remark;

  const ProductSpecOption({
    required this.id,
    this.code,
    required this.name,
    this.quantity = 0,
    this.remark,
  });

  factory ProductSpecOption.fromJson(Map<String, dynamic> json) =>
      ProductSpecOption(
        id: (json['id'] as num).toInt(),
        code: json['code'] as String?,
        name: json['name'] as String,
        quantity: (json['quantity'] as num?)?.toInt() ?? 0,
        remark: json['remark'] as String?,
      );
}

// ── 商品属性字典（产地/保质期/储存方式） ─────────────────────────

class ProductOriginOption {
  final int id;
  final String? code;
  final String name;
  final String? remark;

  const ProductOriginOption({
    required this.id,
    this.code,
    required this.name,
    this.remark,
  });

  factory ProductOriginOption.fromJson(Map<String, dynamic> json) =>
      ProductOriginOption(
        id: (json['id'] as num).toInt(),
        code: json['code'] as String?,
        name: json['name'] as String,
        remark: json['remark'] as String?,
      );
}

class ProductShelfLifeOption {
  final int id;
  final String? code;
  final String name;
  final String? remark;

  const ProductShelfLifeOption({
    required this.id,
    this.code,
    required this.name,
    this.remark,
  });

  factory ProductShelfLifeOption.fromJson(Map<String, dynamic> json) =>
      ProductShelfLifeOption(
        id: (json['id'] as num).toInt(),
        code: json['code'] as String?,
        name: json['name'] as String,
        remark: json['remark'] as String?,
      );
}

class ProductStorageOption {
  final int id;
  final String? code;
  final String name;
  final String? remark;

  const ProductStorageOption({
    required this.id,
    this.code,
    required this.name,
    this.remark,
  });

  factory ProductStorageOption.fromJson(Map<String, dynamic> json) =>
      ProductStorageOption(
        id: (json['id'] as num).toInt(),
        code: json['code'] as String?,
        name: json['name'] as String,
        remark: json['remark'] as String?,
      );
}

// ── 描述文档 ─────────────────────────────────────────────────────

class ProductDescriptionDoc {
  final int id;
  final String title;
  final String? content;
  final String? remark;

  const ProductDescriptionDoc({
    required this.id,
    required this.title,
    this.content,
    this.remark,
  });

  factory ProductDescriptionDoc.fromJson(Map<String, dynamic> json) =>
      ProductDescriptionDoc(
        id: (json['id'] as num).toInt(),
        title: json['title'] as String,
        content: json['content'] as String?,
        remark: json['remark'] as String?,
      );
}