Merge pull request #10 from trunghvbk/structure

add network package

lib/features/cart/domain/cart.dart

@@ -1,44 +1,39 @@
 import 'package:freezed_annotation/freezed_annotation.dart';
 
-import '../../products/domain/product.dart';
-
-part 'cart.g.dart';
 part 'cart.freezed.dart';
 
 @freezed
 class Cart with _$Cart {
   factory Cart({
-    required Map<ProductID, int> items,
+    required Map<String, int> items,
   }) = _Cart;
-
-  factory Cart.fromJson(Map<String, dynamic> json) => _$CartFromJson(json);
 }
 
 /// Helper extension used to update the items in the shopping cart.
 extension MutableCart on Cart {
   Cart addItem(CartItem item) {
-    final copy = Map<ProductID, int>.from(items);
+    final copy = Map<String, int>.from(items);
     // * update item quantity. Read this for more details:
     // * https://codewithandrea.com/tips/dart-map-update-method/
     copy[item.productID] = item.quantity + (copy[item.productID] ?? 0);
     return Cart(items: copy);
   }
 
-  Cart removeItemById(ProductID productId) {
-    final copy = Map<ProductID, int>.from(items);
+  Cart removeItemById(String productId) {
+    final copy = Map<String, int>.from(items);
     copy.remove(productId);
     return Cart(items: copy);
   }
 
   Cart setItem(CartItem item) {
-    final copy = Map<ProductID, int>.from(items);
+    final copy = Map<String, int>.from(items);
     copy[item.productID] = item.quantity;
     return Cart(items: copy);
   }
 }
 
 class CartItem {
-  final ProductID productID;
+  final String productID;
   final int quantity;
 
   CartItem({required this.productID, required this.quantity});

lib/features/cart/domain/cart.freezed.dart

@@ -14,15 +14,10 @@ T _$identity<T>(T value) => value;
 final _privateConstructorUsedError = UnsupportedError(
     'It seems like you constructed your class using `MyClass._()`. This constructor is only meant to be used by freezed and you are not supposed to need it nor use it.\nPlease check the documentation here for more information: https://github.com/rrousselGit/freezed#custom-getters-and-methods');
 
-Cart _$CartFromJson(Map<String, dynamic> json) {
-  return _Cart.fromJson(json);
-}
-
 /// @nodoc
 mixin _$Cart {
   Map<String, int> get items => throw _privateConstructorUsedError;
 
-  Map<String, dynamic> toJson() => throw _privateConstructorUsedError;
   @JsonKey(ignore: true)
   $CartCopyWith<Cart> get copyWith => throw _privateConstructorUsedError;
 }
@@ -89,12 +84,10 @@ class __$$_CartCopyWithImpl<$Res> extends _$CartCopyWithImpl<$Res, _$_Cart>
 }
 
 /// @nodoc
-@JsonSerializable()
+
 class _$_Cart implements _Cart {
   _$_Cart({required final Map<String, int> items}) : _items = items;
 
-  factory _$_Cart.fromJson(Map<String, dynamic> json) => _$$_CartFromJson(json);
-
   final Map<String, int> _items;
   @override
   Map<String, int> get items {
@@ -116,7 +109,6 @@ class _$_Cart implements _Cart {
             const DeepCollectionEquality().equals(other._items, _items));
   }
 
-  @JsonKey(ignore: true)
   @override
   int get hashCode =>
       Object.hash(runtimeType, const DeepCollectionEquality().hash(_items));
@@ -126,20 +118,11 @@ class _$_Cart implements _Cart {
   @pragma('vm:prefer-inline')
   _$$_CartCopyWith<_$_Cart> get copyWith =>
       __$$_CartCopyWithImpl<_$_Cart>(this, _$identity);
-
-  @override
-  Map<String, dynamic> toJson() {
-    return _$$_CartToJson(
-      this,
-    );
-  }
 }
 
 abstract class _Cart implements Cart {
   factory _Cart({required final Map<String, int> items}) = _$_Cart;
 
-  factory _Cart.fromJson(Map<String, dynamic> json) = _$_Cart.fromJson;
-
   @override
   Map<String, int> get items;
   @override

lib/features/main_page/presentation/widgets/main_page.dart

@@ -1,5 +1,4 @@
 import 'package:flutter/material.dart';
-import 'package:flutter_riverpod/flutter_riverpod.dart';
 import 'package:go_router/go_router.dart';
 
 class MainPage extends StatelessWidget {
@@ -15,11 +14,18 @@ class MainPage extends StatelessWidget {
     return Scaffold(
       body: child,
       bottomNavigationBar: BottomNavigationBar(
+        backgroundColor: Colors.amber,
+        selectedItemColor: Colors.orange.shade800,
+        unselectedItemColor: Colors.orange.shade100,
         items: const <BottomNavigationBarItem>[
           BottomNavigationBarItem(
             icon: Icon(Icons.home),
             label: 'Home',
           ),
+          BottomNavigationBarItem(
+            icon: Icon(Icons.category),
+            label: 'Products',
+          ),
           BottomNavigationBarItem(
             icon: Icon(Icons.logo_dev),
             label: 'Weather',
@@ -40,12 +46,15 @@ class MainPage extends StatelessWidget {
     if (location.startsWith('/home')) {
       return 0;
     }
-    if (location.startsWith('/weather')) {
+    if (location.startsWith('/product_list')) {
       return 1;
     }
-    if (location.startsWith('/account')) {
+    if (location.startsWith('/weather')) {
       return 2;
     }
+    if (location.startsWith('/account')) {
+      return 3;
+    }
     return 0;
   }
 
@@ -55,9 +64,12 @@ class MainPage extends StatelessWidget {
         GoRouter.of(context).go('/home');
         break;
       case 1:
-        GoRouter.of(context).go('/weather');
+        GoRouter.of(context).go('/product_list');
         break;
       case 2:
+        GoRouter.of(context).go('/weather');
+        break;
+      case 3:
         GoRouter.of(context).go('/account');
         break;
     }

lib/features/products/application/product_service.dart

@@ -0,0 +1,5 @@
+import 'package:flutter_app/features/products/domain/product.dart';
+
+abstract class ProductService {
+  Future<List<Product>> getProducts(int currentPage, int pageSize);
+}

lib/features/products/domain/product.dart

@@ -1,12 +1,7 @@
 import 'package:freezed_annotation/freezed_annotation.dart';
 
-part 'product.g.dart';
 part 'product.freezed.dart';
 
-/// The ProductID is an important concept in our domain
-/// so it deserves a type of its own
-typedef ProductID = String;
-
 @freezed
 class Product with _$Product {
   factory Product({
@@ -16,7 +11,4 @@ class Product with _$Product {
     required double price,
     required int availableQuantity,
   }) = _Product;
-
-  factory Product.fromJson(Map<String, dynamic> json) =>
-      _$ProductFromJson(json);
 }

lib/features/products/domain/product.freezed.dart

@@ -14,10 +14,6 @@ T _$identity<T>(T value) => value;
 final _privateConstructorUsedError = UnsupportedError(
     'It seems like you constructed your class using `MyClass._()`. This constructor is only meant to be used by freezed and you are not supposed to need it nor use it.\nPlease check the documentation here for more information: https://github.com/rrousselGit/freezed#custom-getters-and-methods');
 
-Product _$ProductFromJson(Map<String, dynamic> json) {
-  return _Product.fromJson(json);
-}
-
 /// @nodoc
 mixin _$Product {
   String get id => throw _privateConstructorUsedError;
@@ -26,7 +22,6 @@ mixin _$Product {
   double get price => throw _privateConstructorUsedError;
   int get availableQuantity => throw _privateConstructorUsedError;
 
-  Map<String, dynamic> toJson() => throw _privateConstructorUsedError;
   @JsonKey(ignore: true)
   $ProductCopyWith<Product> get copyWith => throw _privateConstructorUsedError;
 }
@@ -145,7 +140,7 @@ class __$$_ProductCopyWithImpl<$Res>
 }
 
 /// @nodoc
-@JsonSerializable()
+
 class _$_Product implements _Product {
   _$_Product(
       {required this.id,
@@ -154,9 +149,6 @@ class _$_Product implements _Product {
       required this.price,
       required this.availableQuantity});
 
-  factory _$_Product.fromJson(Map<String, dynamic> json) =>
-      _$$_ProductFromJson(json);
-
   @override
   final String id;
   @override
@@ -187,7 +179,6 @@ class _$_Product implements _Product {
                 other.availableQuantity == availableQuantity));
   }
 
-  @JsonKey(ignore: true)
   @override
   int get hashCode =>
       Object.hash(runtimeType, id, imageUrl, title, price, availableQuantity);
@@ -197,13 +188,6 @@ class _$_Product implements _Product {
   @pragma('vm:prefer-inline')
   _$$_ProductCopyWith<_$_Product> get copyWith =>
       __$$_ProductCopyWithImpl<_$_Product>(this, _$identity);
-
-  @override
-  Map<String, dynamic> toJson() {
-    return _$$_ProductToJson(
-      this,
-    );
-  }
 }
 
 abstract class _Product implements Product {
@@ -214,8 +198,6 @@ abstract class _Product implements Product {
       required final double price,
       required final int availableQuantity}) = _$_Product;
 
-  factory _Product.fromJson(Map<String, dynamic> json) = _$_Product.fromJson;
-
   @override
   String get id;
   @override

lib/features/products/presentation/product_list_controller.dart

@@ -0,0 +1,18 @@
+import 'package:flutter_app/features/products/application/product_service.dart';
+import 'package:flutter_app/features/products/domain/product.dart';
+import 'package:flutter_riverpod/flutter_riverpod.dart';
+
+class ProductListController extends StateNotifier<AsyncValue<List<Product>>> {
+  ProductListController({required this.productService})
+      : super(const AsyncData([])) {
+    loadProducts();
+  }
+  final ProductService productService;
+
+  Future<void> loadProducts() async {
+    state = const AsyncLoading();
+    state = await AsyncValue.guard(
+      () => productService.getProducts(0, 100),
+    );
+  }
+}

lib/features/products/presentation/product_list_page.dart

@@ -0,0 +1,27 @@
+import 'package:flutter/material.dart';
+import 'package:flutter_app/features/products/presentation/widgets/product_list_item.dart';
+import 'package:flutter_app/providers/controller_providers.dart';
+import 'package:flutter_riverpod/flutter_riverpod.dart';
+
+class ProductListPage extends ConsumerWidget {
+  const ProductListPage({super.key});
+
+  @override
+  Widget build(BuildContext context, WidgetRef ref) {
+    final dataValue = ref.watch(productListControllerProvider);
+    return Scaffold(
+      appBar: AppBar(title: const Text('Product List')),
+      body: dataValue.when(
+          data: (data) {
+            return GridView.count(
+              crossAxisCount: 2,
+              children: data
+                  .map((product) => ProductListItem(product: product))
+                  .toList(),
+            );
+          },
+          loading: () => const Center(child: CircularProgressIndicator()),
+          error: (e, __) => Text(e.toString())),
+    );
+  }
+}

lib/features/products/presentation/widgets/product_list_item.dart

@@ -0,0 +1,18 @@
+import 'package:flutter/widgets.dart';
+import 'package:flutter_app/features/products/domain/product.dart';
+
+class ProductListItem extends StatelessWidget {
+  final Product product;
+  const ProductListItem({super.key, required this.product});
+
+  @override
+  Widget build(BuildContext context) {
+    return Column(
+      children: [
+        Text(product.title),
+        Text('${product.availableQuantity}'),
+        Text('${product.price}')
+      ],
+    );
+  }
+}