import 'package:cloud_firestore/cloud_firestore.dart';
import 'package:json_annotation/json_annotation.dart';

@JsonSerializable()
class MyCard {
  String name;
  String desc;
  String image;
  String flav;
  double price;

  MyCard(this.name, this.desc, this.image, this.flav, this.price);
  factory MyCard.Food(name, desc, image, flav, price) =>
      MyCard(name, desc, image, flav, price);
  MyCard.fromJson(Map<String, dynamic> json)
      : name = json['name'],
        desc = json['desc'],
        image = json['image'],
        flav = json['flav'],
        price = json['price'];
}
@JsonSerializable()
class Food extends MyCard {
  @override
  String name;
  @override
  String desc;
  @override
  String image;
  @override
  String flav;
  @override
  double price;

  
  Food(
      {required this.name,
      required this.desc,
      required this.image,
      required this.flav,
      required this.price})
      : super(name, desc, image, flav, price);

 

  static Food _$FoodFromJson(Map<String, dynamic> json) => Food(
  name: json['name'] as String,
  desc: json['desc'] as String,
  image: json['image'] as String,
  flav: json['flav'] as String,
  price: json['price'] as double,
);

 static Map<String, dynamic> _$FoodToJson(Food instance) => <String, dynamic>{
      'name': instance.name,
      'desc': instance.desc,
      'image': instance.image,
      'flav': instance.flav,
      'price': instance.price,
    };  
      
  factory Food.fromJson(Map<String, dynamic> json)=> _$FoodFromJson(json);
  static Map<String, dynamic> toJson() => _$FoodToJson(this);

  final FoodRef = FirebaseFirestore.instance.collection('listfood').withConverter<Food>(
      fromFirestore: (snapshot, _) => Food.fromJson(snapshot.data()!),
      toFirestore: (food, _) => Food.toJson(),
    );
 
  static var foodList = [
    Food(
      name: 'Fraise Cream',
      desc:
          'We have been loading up on the stone fruit and berries at the market. We have no self control to these summer gems. We have gross we can out of hand, our  Strawberry...',
      price: 2.50,
      image: 'assets/images/food1.png',
      flav: 'Strawberry Flovour Sweet Ice Cream',
    ),
    Food(
      name: 'Mandarine',
      desc:
          'We have been loading up on the stone fruit and berries at the market. We have no self control to these summer gems. We have gross we can out of hand, our  Strawberry...',
      price: 3.50,
      image: 'assets/images/food2.png',
      flav: 'Caramel Flovour Sweet Ice Cream',
    )
  ];
}

class Beverage extends MyCard {
  @override
  String name;
  @override
  String desc;
  @override
  String image;
  @override
  String flav;
  @override
  double price;

  Beverage(
      {required this.name,
      required this.desc,
      required this.image,
      required this.flav,
      required this.price})
      : super(name, desc, image, flav, price);

  static var beverageList = [
    Beverage(
      name: 'test',
      desc: 'We have test',
      image: 'assets/images/food1.png',
      price: 3.0,
      flav: 'Strawberry test',
    ),
  ];
}

误差直线误差_$FoodToJson（本）;static Map<String, dynamic> toJson() => _$FoodToJson(this);我自己也不知道我错在哪里。代码可以从数据库中获取数据吗？我是一个新手。因为有人说它可以从数据库中获取数据，比如**doc[index][“name”]**来替换foodlist中的name。
如果解决行静态Map〈String，dynamic〉toJson（）=〉_$FoodToJson（this）的错误;可以像下面的代码那样使用Food.toJson（）.name吗？

static var foodList = [
    Food(
      name: Food.toJson().name,
      desc: Food.toJson().desc,          
      price: Food.toJson().price
      image: Food.toJson().image,
      flav: Food.toJson().flav,
    ),
]