tarea 11

devtools_options.yaml

+description: This file stores settings for Dart & Flutter DevTools.
+documentation: https://docs.flutter.dev/tools/devtools/extensions#configure-extension-enablement-states
+extensions:

lib/custom/custom_app_bar.dart

+import 'package:flutter/material.dart';
+import 'package:primer_practica/src/delegates/article_search_delegate.dart';
+import 'package:provider/provider.dart';
+import 'package:primer_practica/src/providers/carrito_providers.dart';
+import 'package:badges/badges.dart' as badges;
+
+class CustomAppBar extends StatelessWidget implements PreferredSizeWidget {
+  @override
+  Widget build(BuildContext context) {
+    var carrito = Provider.of<CarritoProvider>(context, listen: true);
+
+    return AppBar(
+      title: const Text('Home'),
+      backgroundColor: Colors.blue,
+      actions: [
+        IconButton(
+          icon: const Icon(Icons.search),
+          onPressed: () {
+            showSearch(
+              context: context,
+              delegate: ArticleSearchDelegate(),
+            );
+          },
+        ),
+        Padding(
+          padding: const EdgeInsets.only(right: 16.0),
+          child: badges.Badge(
+            badgeContent: Text(
+              '${carrito.totalCarrito}',
+              style: const TextStyle(color: Colors.white),
+            ),
+            child: IconButton(
+              icon: const Icon(Icons.shopping_cart),
+              onPressed: () {
+                Navigator.pushNamed(context, 'carrito');
+              },
+            ),
+          ),
+        ),
+      ],
+    );
+  }
+
+  @override
+  Size get preferredSize => Size.fromHeight(kToolbarHeight);
+}

lib/main.dart

 import 'package:flutter/material.dart';
+import 'package:provider/provider.dart';
+import 'package:primer_practica/src/providers/carrito_providers.dart';
 import 'package:primer_practica/src/config/routes.dart';
 
 void main() {
@@ -10,14 +12,21 @@ class MyApp extends StatelessWidget {
 
   @override
   Widget build(BuildContext context) {
-    return MaterialApp(
-      title: 'Primer practica',
-      theme: ThemeData(
-        primarySwatch: Colors.blue,
+    return MultiProvider(
+      providers: [
+        ChangeNotifierProvider(
+          create: (context) => CarritoProvider(),
+        ),
+      ],
+      child: MaterialApp(
+        title: 'Primer practica',
+        theme: ThemeData(
+          primarySwatch: Colors.blue,
+        ),
+        initialRoute: 'login',
+        debugShowCheckedModeBanner: false,
+        routes: getApplicationRoutes(),
       ),
-      initialRoute: 'login', // Establece la ruta inicial
-      debugShowCheckedModeBanner: false,
-      routes: getApplicationRoutes(), // Usa las rutas definidas
     );
   }
 }

lib/src/config/routes.dart

@@ -2,13 +2,13 @@ import 'package:flutter/material.dart';
 import 'package:primer_practica/src/pages/formulario_categoria.dart';
 import 'package:primer_practica/src/pages/login_page.dart';
 import 'package:primer_practica/src/pages/home_page.dart';
-
+import 'package:primer_practica/src/pages/carrito_page.dart';
 
 Map<String, WidgetBuilder> getApplicationRoutes() {
   return <String, WidgetBuilder>{
-    'login': (BuildContext context) => const LoginPage(),
-    'home': (BuildContext context) => const HomePage(),
-    //'articles': (BuildContext context) => const ArticlesPage(),
-    'formulario': (BuildContext context) => const FormularioCategoria(),
+    'login': (BuildContext context) => LoginPage(),
+    'home': (BuildContext context) => HomePage(),
+    'carrito': (BuildContext context) => CarritoPage(),
+    'formulario': (BuildContext context) => FormularioCategoria(),
   };
 }

lib/src/delegates/article_search_delegate.dart

 import 'package:flutter/material.dart';
+import 'package:provider/provider.dart';
 import 'package:primer_practica/src/controllers/articles_controller.dart';
 import 'package:primer_practica/src/models/articles_model.dart';
+import 'package:primer_practica/src/providers/carrito_providers.dart'; // Importa CarritoProvider
 
 class ArticleSearchDelegate extends SearchDelegate {
   final ArticleController articleCtrl = ArticleController();
@@ -67,7 +69,8 @@ class ArticleSearchDelegate extends SearchDelegate {
                 trailing: IconButton(
                   icon: Icon(Icons.shopping_cart),
                   onPressed: () {
-
+                    final carritoProvider = Provider.of<CarritoProvider>(context, listen: false);
+                    carritoProvider.agregarCarrito(article); // Llama al método correcto
                     close(context, null); // Cierra el SearchDelegate
                   },
                 ),

lib/src/http_api/category_service.dart

-import 'dart:convert'; // Para convertir datos a JSON
+import 'dart:convert';
 import 'package:flutter/foundation.dart';
 import 'package:http/http.dart' as http;
 import 'package:primer_practica/environments/urls.dart' as api;

lib/src/models/articles_model.dart

-class ArticlesModel{
+class ArticlesModel {
   final int id;
   final String clave;
   final String nombre;
@@ -29,6 +29,17 @@ class ArticlesModel{
     );
   }
 
+  Map<String, dynamic> toJson() {
+    return {
+      'id': id,
+      'clave': clave,
+      'nombre': nombre,
+      'categoriaId': categoriaId,
+      'precios': precios.map((price) => price.toJson()).toList(),
+      'activo': activo,
+    };
+  }
+
   static List<ArticlesModel> fromJsonArray(List<dynamic> jsonArray) {
     return jsonArray.map((json) => ArticlesModel.fromJson(json)).toList();
   }
@@ -49,4 +60,11 @@ class Price {
       precio: json['precio'].toDouble(),
     );
   }
-}
+
\ No newline at end of file
+  Map<String, dynamic> toJson() {
+    return {
+      'id': id,
+      'precio': precio,
+    };
+  }
+}

lib/src/models/carrito_model.dart

+import 'package:primer_practica/src/models/articles_model.dart';
+
+class CarritoModel {
+  final ArticlesModel articulo;
+  int cantidad;
+  double precio;
+
+  CarritoModel({
+    required this.articulo,
+    this.cantidad = 1,
+    double? precio,
+  }) : precio = precio ?? (articulo.precios.isNotEmpty ? articulo.precios[0].precio : 0.0);
+
+  Map<String, dynamic> toJson() {
+    return {
+      'articulo': articulo.toJson(),
+      'cantidad': cantidad,
+      'precio': precio,
+    };
+  }
+
+  factory CarritoModel.fromJson(Map<String, dynamic> json) {
+    return CarritoModel(
+      articulo: ArticlesModel.fromJson(json['articulo']),
+      cantidad: json['cantidad'],
+      precio: json['precio'], // Asegúrate de que se maneje correctamente el precio
+    );
+  }
+}

lib/src/pages/articles_page.dart

@@ -6,7 +6,6 @@ class ArticlePage extends StatefulWidget {
 
   final int categoryId;
 
-  // creamos un constructor de ArticlePage que recibe categoryId como parámetro.
   const ArticlePage({Key? key, required this.categoryId}) : super(key: key);
   @override
   _ArticlePageState createState() => _ArticlePageState();
@@ -20,8 +19,6 @@ class _ArticlePageState extends State<ArticlePage> {
   @override
   void initState() {
     super.initState();
-    // Inicializa _articlesFuture llamando al método getArticles del controlador de
-    // artículos con el categoryId.
     _articlesFuture = _articleController.getArticles(widget.categoryId);
   }
 
@@ -43,7 +40,6 @@ class _ArticlePageState extends State<ArticlePage> {
                 List<ArticlesModel> articles = snapshot.data!['data'] as List<ArticlesModel>;
                 //Lista de articulos
                 return ListView.builder(
-                  // Definimos el número de elementos en la lista.
                   itemCount: articles.length,
                   itemBuilder: (context, index) {
                     final article = articles[index];

lib/src/pages/carrito_page.dart

+import 'package:flutter/material.dart';
+import 'package:provider/provider.dart';
+import 'package:primer_practica/src/providers/carrito_providers.dart';
+import 'package:primer_practica/src/models/carrito_model.dart';
+
+class CarritoPage extends StatelessWidget {
+  @override
+  Widget build(BuildContext context) {
+    var carritoProvider = Provider.of<CarritoProvider>(context);
+
+    return Scaffold(
+      appBar: AppBar(
+        title: Text('Carrito'),
+      ),
+      body: Column(
+        children: [
+          Expanded(
+            child: ListView.builder(
+              itemCount: carritoProvider.carrito.length, // Número de elementos en el carrito
+              itemBuilder: (context, index) {
+                final item = carritoProvider.carrito[index];
+                return CarritoItemWidget(item: item); // Construte los elementos
+              },
+            ),
+          ),
+          Padding(
+            padding: const EdgeInsets.all(20.0),
+            child: Row(
+              mainAxisAlignment: MainAxisAlignment.spaceBetween,
+              children: [
+                Text(
+                  '\$ ${carritoProvider.totalPrecio.toStringAsFixed(2)}', // Total de todos los articulos
+                  style: TextStyle(fontSize: 24, fontWeight: FontWeight.w700),
+                ),
+                ElevatedButton(
+                  onPressed: () {
+
+                  },
+                  child: Text('COMPRAR'),
+                ),
+              ],
+            ),
+          ),
+        ],
+      ),
+    );
+  }
+}
+
+class CarritoItemWidget extends StatelessWidget {
+  final CarritoModel item;
+
+  const CarritoItemWidget({Key? key, required this.item}) : super(key: key);
+
+  @override
+  Widget build(BuildContext context) {
+    var carritoProvider = Provider.of<CarritoProvider>(context, listen: false);
+
+    return Card(
+      margin: const EdgeInsets.symmetric(vertical: 8, horizontal: 16),
+      child: Padding(
+        padding: const EdgeInsets.all(30.0),
+        child: Column(
+          crossAxisAlignment: CrossAxisAlignment.start,
+          children: [
+            Text(
+              item.articulo.nombre, // Muestra el nombre del artículo
+              style: TextStyle(fontSize: 18, fontWeight: FontWeight.bold),
+            ),
+            SizedBox(height: 15),
+            Row(
+              mainAxisAlignment: MainAxisAlignment.spaceBetween,
+              children: [
+                Text('Precio: \$${item.precio.toStringAsFixed(2)}'), // Muestra el precio del artículo
+                Row(
+                  children: [
+                    IconButton(
+                      icon: Icon(Icons.remove),
+                      onPressed: () {
+                        if (item.cantidad > 1) {
+                          carritoProvider.actualizarArticulo(item, item.cantidad - 1); // Disminuye la cantidad del artículo
+                        }
+                      },
+                    ),
+                    Text('${item.cantidad}'),
+                    IconButton(
+                      icon: Icon(Icons.add),
+                      onPressed: () {
+                        carritoProvider.actualizarArticulo(item, item.cantidad + 1); // Aumenta la cantidad del artículo
+                      },
+                    ),
+                  ],
+                ),
+                Text('Total: \$${(item.precio * item.cantidad).toStringAsFixed(2)}'), // Muestra el total por artículo
+              ],
+            ),
+            IconButton(
+              icon: Icon(Icons.delete, color: Colors.red),
+              onPressed: () {
+                carritoProvider.eliminarDelCarrito(item);
+              },
+            ),
+          ],
+        ),
+      ),
+    );
+  }
+}

lib/src/pages/formulario_categoria.dart

@@ -46,10 +46,9 @@ class _FormularioCategoriaState extends State<FormularioCategoria> {
 
     if (result['ok']) {
       ScaffoldMessenger.of(context).showSnackBar(
-        SnackBar(content: Text(result['message'])), // Muestra mensaje de éxito
+        SnackBar(content: Text(result['message'])),
       );
       print("hola");
-      //Navigator.pop(context);
       Navigator.pushNamed(context, 'home');
     } else {
       ScaffoldMessenger.of(context).showSnackBar(
@@ -79,7 +78,7 @@ class _FormularioCategoriaState extends State<FormularioCategoria> {
               decoration: const InputDecoration(labelText: 'Nombre'),
               keyboardType: TextInputType.text,
             ),
-            const SizedBox(height: 60), // Ajuste del espacio entre campos y botón
+            const SizedBox(height: 60),
             ElevatedButton(
               onPressed: _guardarCategoria,
               child: const Text('GUARDAR'),

lib/src/pages/home_page.dart

 import 'package:flutter/material.dart';
 import 'package:primer_practica/src/pages/category/lista_categorias.dart';
-import 'package:primer_practica/src/delegates/article_search_delegate.dart';
+import 'package:primer_practica/custom/custom_app_bar.dart';
+import 'package:primer_practica/src/providers/carrito_providers.dart';
+import 'package:provider/provider.dart';
 
 class HomePage extends StatelessWidget {
   const HomePage({Key? key}) : super(key: key);
@@ -8,21 +10,7 @@ class HomePage extends StatelessWidget {
   @override
   Widget build(BuildContext context) {
     return Scaffold(
-      appBar: AppBar(
-        title: const Text('Home'),
-        backgroundColor: Colors.blue,
-        actions: [
-          IconButton(
-            icon: const Icon(Icons.search),
-            onPressed: () {
-              showSearch(
-                context: context,
-                delegate: ArticleSearchDelegate(),
-              );
-            },
-          )
-        ],
-      ),
+      appBar: CustomAppBar(),
       drawer: Drawer(
         child: ListView(
           padding: EdgeInsets.zero,

lib/src/providers/carrito_providers.dart

+import 'package:flutter/material.dart';
+import 'package:primer_practica/src/models/carrito_model.dart';
+import 'package:primer_practica/src/models/articles_model.dart';
+
+class CarritoProvider with ChangeNotifier {
+  List<CarritoModel> _carrito = [];
+
+  List<CarritoModel> get carrito => _carrito;
+
+  void agregarCarrito(ArticlesModel article) {
+    final carritoItem = CarritoModel(
+      articulo: article,
+      cantidad: 1,
+      precio: article.precios.isNotEmpty ? article.precios[0].precio : 0.0,
+    );
+    _carrito.add(carritoItem);
+    notifyListeners();
+  }
+
+  void eliminarDelCarrito(CarritoModel item) {
+    _carrito.remove(item);
+    notifyListeners();
+  }
+
+  void actualizarArticulo(CarritoModel item, int quantity) {
+    int index = _carrito.indexOf(item);
+    if (index != -1) {
+      _carrito[index].cantidad = quantity;
+      notifyListeners();
+    }
+  }
+
+  double get totalPrecio {
+    double total = 0.0;
+    for (var item in _carrito) {
+      total += item.precio * item.cantidad;
+    }
+    return total;
+  }
+
+  int get totalCarrito => _carrito.length;
+}

pubspec.lock

@@ -17,6 +17,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "2.11.0"
+  badges:
+    dependency: "direct main"
+    description:
+      name: badges
+      sha256: "727580d938b7a1ff47ea42df730d581415606b4224cfa708671c10287f8d3fe6"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.0.3"
   boolean_selector:
     dependency: transitive
     description:
@@ -232,6 +240,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "1.12.0"
+  nested:
+    dependency: transitive
+    description:
+      name: nested
+      sha256: "03bac4c528c64c95c722ec99280375a6f2fc708eec17c7b3f07253b626cd2a20"
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.0.0"
   nm:
     dependency: transitive
     description:
@@ -264,6 +280,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "2.1.8"
+  provider:
+    dependency: "direct main"
+    description:
+      name: provider
+      sha256: c8a055ee5ce3fd98d6fc872478b03823ffdb448699c6ebdbbc71d59b596fd48c
+      url: "https://pub.dev"
+    source: hosted
+    version: "6.1.2"
   sky_engine:
     dependency: transitive
     description: flutter

pubspec.yaml

@@ -32,6 +32,8 @@ dependencies:
     sdk: flutter
   http: ^1.2.2
   connectivity_plus: ^2.3.6
+  provider: ^6.1.2
+  badges: ^2.0.1
 
 
   # The following adds the Cupertino Icons font to your application.