runable
This commit is contained in:
Phuoc Nguyen
@@ -0,0 +1,53 @@
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import 'package:hive_ce/hive.dart';
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import '../models/cart_item_model.dart';
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/// Cart local data source using Hive
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abstract class CartLocalDataSource {
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Future<List<CartItemModel>> getCartItems();
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Future<void> addToCart(CartItemModel item);
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Future<void> updateQuantity(String productId, int quantity);
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Future<void> removeFromCart(String productId);
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Future<void> clearCart();
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}
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class CartLocalDataSourceImpl implements CartLocalDataSource {
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final Box<CartItemModel> box;
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CartLocalDataSourceImpl(this.box);
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@override
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Future<List<CartItemModel>> getCartItems() async {
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return box.values.toList();
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}
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@override
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Future<void> addToCart(CartItemModel item) async {
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await box.put(item.productId, item);
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}
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@override
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Future<void> updateQuantity(String productId, int quantity) async {
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final item = box.get(productId);
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if (item != null) {
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final updated = CartItemModel(
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productId: item.productId,
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productName: item.productName,
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price: item.price,
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quantity: quantity,
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imageUrl: item.imageUrl,
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addedAt: item.addedAt,
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);
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await box.put(productId, updated);
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}
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}
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@override
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Future<void> removeFromCart(String productId) async {
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await box.delete(productId);
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}
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@override
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Future<void> clearCart() async {
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await box.clear();
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}
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}
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83
lib/features/home/data/models/cart_item_model.dart
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83
lib/features/home/data/models/cart_item_model.dart
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@@ -0,0 +1,83 @@
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import 'package:hive_ce/hive.dart';
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import '../../domain/entities/cart_item.dart';
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import '../../../../core/constants/storage_constants.dart';
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part 'cart_item_model.g.dart';
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@HiveType(typeId: StorageConstants.cartItemTypeId)
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class CartItemModel extends HiveObject {
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@HiveField(0)
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final String productId;
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@HiveField(1)
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final String productName;
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@HiveField(2)
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final double price;
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@HiveField(3)
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final int quantity;
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@HiveField(4)
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final String? imageUrl;
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@HiveField(5)
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final DateTime addedAt;
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CartItemModel({
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required this.productId,
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required this.productName,
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required this.price,
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required this.quantity,
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this.imageUrl,
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required this.addedAt,
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});
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/// Convert to domain entity
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CartItem toEntity() {
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return CartItem(
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productId: productId,
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productName: productName,
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price: price,
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quantity: quantity,
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imageUrl: imageUrl,
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addedAt: addedAt,
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);
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}
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/// Create from domain entity
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factory CartItemModel.fromEntity(CartItem item) {
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return CartItemModel(
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productId: item.productId,
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productName: item.productName,
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price: item.price,
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quantity: item.quantity,
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imageUrl: item.imageUrl,
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addedAt: item.addedAt,
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);
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}
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/// Convert to JSON
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Map<String, dynamic> toJson() {
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return {
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'productId': productId,
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'productName': productName,
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'price': price,
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'quantity': quantity,
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'imageUrl': imageUrl,
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'addedAt': addedAt.toIso8601String(),
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};
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}
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/// Create from JSON
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factory CartItemModel.fromJson(Map<String, dynamic> json) {
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return CartItemModel(
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productId: json['productId'] as String,
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productName: json['productName'] as String,
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price: (json['price'] as num).toDouble(),
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quantity: json['quantity'] as int,
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imageUrl: json['imageUrl'] as String?,
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addedAt: DateTime.parse(json['addedAt'] as String),
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);
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}
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}
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56
lib/features/home/data/models/cart_item_model.g.dart
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56
lib/features/home/data/models/cart_item_model.g.dart
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@@ -0,0 +1,56 @@
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// GENERATED CODE - DO NOT MODIFY BY HAND
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part of 'cart_item_model.dart';
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// **************************************************************************
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// TypeAdapterGenerator
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// **************************************************************************
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class CartItemModelAdapter extends TypeAdapter<CartItemModel> {
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@override
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final typeId = 2;
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@override
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CartItemModel read(BinaryReader reader) {
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final numOfFields = reader.readByte();
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final fields = <int, dynamic>{
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for (int i = 0; i < numOfFields; i++) reader.readByte(): reader.read(),
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};
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return CartItemModel(
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productId: fields[0] as String,
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productName: fields[1] as String,
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price: (fields[2] as num).toDouble(),
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quantity: (fields[3] as num).toInt(),
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imageUrl: fields[4] as String?,
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addedAt: fields[5] as DateTime,
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);
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}
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@override
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void write(BinaryWriter writer, CartItemModel obj) {
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writer
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..writeByte(6)
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..writeByte(0)
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..write(obj.productId)
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..writeByte(1)
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..write(obj.productName)
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..writeByte(2)
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..write(obj.price)
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..writeByte(3)
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..write(obj.quantity)
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..writeByte(4)
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..write(obj.imageUrl)
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..writeByte(5)
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..write(obj.addedAt);
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}
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@override
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int get hashCode => typeId.hashCode;
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@override
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bool operator ==(Object other) =>
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identical(this, other) ||
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other is CartItemModelAdapter &&
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runtimeType == other.runtimeType &&
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typeId == other.typeId;
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}
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123
lib/features/home/data/models/transaction_model.dart
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123
lib/features/home/data/models/transaction_model.dart
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@@ -0,0 +1,123 @@
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import 'package:hive_ce/hive.dart';
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import 'package:retail/core/constants/storage_constants.dart';
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import 'package:retail/features/home/data/models/cart_item_model.dart';
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part 'transaction_model.g.dart';
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/// Transaction model with Hive CE type adapter
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@HiveType(typeId: StorageConstants.transactionTypeId)
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class TransactionModel extends HiveObject {
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/// Unique transaction identifier
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@HiveField(0)
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final String id;
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/// List of cart items in this transaction
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@HiveField(1)
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final List<CartItemModel> items;
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/// Subtotal amount (before tax and discount)
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@HiveField(2)
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final double subtotal;
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/// Tax amount
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@HiveField(3)
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final double tax;
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/// Discount amount
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@HiveField(4)
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final double discount;
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/// Total amount (subtotal + tax - discount)
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@HiveField(5)
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final double total;
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/// Transaction completion timestamp
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@HiveField(6)
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final DateTime completedAt;
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/// Payment method used (e.g., 'cash', 'card', 'digital')
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@HiveField(7)
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final String paymentMethod;
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TransactionModel({
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required this.id,
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required this.items,
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required this.subtotal,
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required this.tax,
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required this.discount,
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required this.total,
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required this.completedAt,
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required this.paymentMethod,
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});
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/// Get total number of items in transaction
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int get totalItems => items.fold(0, (sum, item) => sum + item.quantity);
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/// Create a copy with updated fields
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TransactionModel copyWith({
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String? id,
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List<CartItemModel>? items,
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double? subtotal,
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double? tax,
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double? discount,
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double? total,
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DateTime? completedAt,
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String? paymentMethod,
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}) {
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return TransactionModel(
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id: id ?? this.id,
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items: items ?? this.items,
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subtotal: subtotal ?? this.subtotal,
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tax: tax ?? this.tax,
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discount: discount ?? this.discount,
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total: total ?? this.total,
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completedAt: completedAt ?? this.completedAt,
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paymentMethod: paymentMethod ?? this.paymentMethod,
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);
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}
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/// Convert to JSON
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Map<String, dynamic> toJson() {
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return {
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'id': id,
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'items': items.map((item) => item.toJson()).toList(),
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'subtotal': subtotal,
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'tax': tax,
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'discount': discount,
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'total': total,
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'completedAt': completedAt.toIso8601String(),
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'paymentMethod': paymentMethod,
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};
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}
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/// Create from JSON
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factory TransactionModel.fromJson(Map<String, dynamic> json) {
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return TransactionModel(
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id: json['id'] as String,
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items: (json['items'] as List)
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.map((item) => CartItemModel.fromJson(item as Map<String, dynamic>))
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.toList(),
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subtotal: (json['subtotal'] as num).toDouble(),
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tax: (json['tax'] as num).toDouble(),
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discount: (json['discount'] as num).toDouble(),
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total: (json['total'] as num).toDouble(),
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completedAt: DateTime.parse(json['completedAt'] as String),
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paymentMethod: json['paymentMethod'] as String,
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);
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}
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@override
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String toString() {
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return 'TransactionModel(id: $id, total: $total, items: ${items.length}, method: $paymentMethod)';
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}
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@override
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bool operator ==(Object other) {
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if (identical(this, other)) return true;
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return other is TransactionModel && other.id == id;
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}
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@override
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int get hashCode => id.hashCode;
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}
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62
lib/features/home/data/models/transaction_model.g.dart
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62
lib/features/home/data/models/transaction_model.g.dart
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@@ -0,0 +1,62 @@
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// GENERATED CODE - DO NOT MODIFY BY HAND
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part of 'transaction_model.dart';
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// **************************************************************************
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// TypeAdapterGenerator
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// **************************************************************************
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class TransactionModelAdapter extends TypeAdapter<TransactionModel> {
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@override
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final typeId = 3;
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@override
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TransactionModel read(BinaryReader reader) {
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final numOfFields = reader.readByte();
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final fields = <int, dynamic>{
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for (int i = 0; i < numOfFields; i++) reader.readByte(): reader.read(),
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};
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return TransactionModel(
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id: fields[0] as String,
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items: (fields[1] as List).cast<CartItemModel>(),
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subtotal: (fields[2] as num).toDouble(),
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tax: (fields[3] as num).toDouble(),
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discount: (fields[4] as num).toDouble(),
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total: (fields[5] as num).toDouble(),
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completedAt: fields[6] as DateTime,
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paymentMethod: fields[7] as String,
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);
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}
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@override
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void write(BinaryWriter writer, TransactionModel obj) {
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writer
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..writeByte(8)
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..writeByte(0)
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..write(obj.id)
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..writeByte(1)
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..write(obj.items)
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..writeByte(2)
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..write(obj.subtotal)
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..writeByte(3)
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..write(obj.tax)
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..writeByte(4)
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..write(obj.discount)
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..writeByte(5)
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..write(obj.total)
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..writeByte(6)
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..write(obj.completedAt)
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..writeByte(7)
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..write(obj.paymentMethod);
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}
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@override
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int get hashCode => typeId.hashCode;
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@override
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bool operator ==(Object other) =>
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identical(this, other) ||
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other is TransactionModelAdapter &&
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runtimeType == other.runtimeType &&
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typeId == other.typeId;
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}
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@@ -0,0 +1,66 @@
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import 'package:dartz/dartz.dart';
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import '../../domain/entities/cart_item.dart';
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import '../../domain/repositories/cart_repository.dart';
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import '../datasources/cart_local_datasource.dart';
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import '../models/cart_item_model.dart';
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import '../../../../core/errors/failures.dart';
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import '../../../../core/errors/exceptions.dart';
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class CartRepositoryImpl implements CartRepository {
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final CartLocalDataSource localDataSource;
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CartRepositoryImpl({
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required this.localDataSource,
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});
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@override
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Future<Either<Failure, List<CartItem>>> getCartItems() async {
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try {
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final items = await localDataSource.getCartItems();
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return Right(items.map((model) => model.toEntity()).toList());
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} on CacheException catch (e) {
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return Left(CacheFailure(e.message));
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}
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}
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@override
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Future<Either<Failure, void>> addToCart(CartItem item) async {
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try {
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final model = CartItemModel.fromEntity(item);
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await localDataSource.addToCart(model);
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return const Right(null);
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} on CacheException catch (e) {
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return Left(CacheFailure(e.message));
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}
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}
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@override
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Future<Either<Failure, void>> updateQuantity(String productId, int quantity) async {
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try {
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await localDataSource.updateQuantity(productId, quantity);
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return const Right(null);
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} on CacheException catch (e) {
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return Left(CacheFailure(e.message));
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}
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}
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@override
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Future<Either<Failure, void>> removeFromCart(String productId) async {
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try {
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await localDataSource.removeFromCart(productId);
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return const Right(null);
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} on CacheException catch (e) {
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return Left(CacheFailure(e.message));
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}
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}
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@override
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Future<Either<Failure, void>> clearCart() async {
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try {
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await localDataSource.clearCart();
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return const Right(null);
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} on CacheException catch (e) {
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return Left(CacheFailure(e.message));
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}
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}
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}
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Reference in New Issue
Block a user