Cart Model

cart_model.dart

import 'dart:convert';

import 'package:flutter/foundation.dart';

import 'package:app/data/models/menu/itens.dart';

class Cart {
  String? referencia;
  List<Itens>? vendaMobileItens;
  double? total;
  int? quantidade = 0;

  Cart({
    required this.referencia,
    required this.vendaMobileItens,
    required this.total,
    this.quantidade,
  });

  factory Cart.fromMap(Map<String, dynamic> data) => Cart(
        referencia: data['referencia'] ?? '**',
        vendaMobileItens: (data['vendaMobileItens'] ?? <Itens>[])
            ?.map((items) => Itens.fromMap(items as Map<String, dynamic>))
            .toList(),
        total: data['total'] as double?,
      );

  Map<String, dynamic> toMap() => {
        'referencia': referencia,
        'vendaMobileItens':
            vendaMobileItens!.map((items) => items.toMap()).toList(),
        'total': total,
      };

  factory Cart.fromJson(Map<String, dynamic> json) {
    return Cart.fromMap(json);
  }

  String toJson() => json.encode(toMap());

  @override
  String toString() {
    return 'Cart(referencia: $referencia, vendaMobileItens: $vendaMobileItens, total: $total)';
  }

  Cart copyWith({
    String? referencia,
    List<Itens>? vendaMobileItens,
    double? total,
    int? quantidade,
  }) {
    return Cart(
      referencia: referencia ?? this.referencia,
      vendaMobileItens: vendaMobileItens ?? this.vendaMobileItens,
      total: total ?? this.total,
      quantidade: quantidade ?? this.quantidade,
    );
  }

  @override
  bool operator ==(Object other) {
    if (identical(this, other)) return true;

    return other is Cart &&
        other.referencia == referencia &&
        listEquals(other.vendaMobileItens, vendaMobileItens) &&
        other.total == total &&
        other.quantidade == quantidade;
  }

  @override
  int get hashCode {
    return referencia.hashCode ^
        vendaMobileItens.hashCode ^
        total.hashCode ^
        quantidade.hashCode;
  }
}