Funcionalidad y test completos implementados de la gestión de ventas …

essenza/essenza/urls.py

@@ -15,6 +15,7 @@
     path("catalog/<int:pk>/", CatalogDetailView.as_view(), name="catalog_detail"),
     path("cart/", include("cart.urls")),
     path("order/", include("order.urls")),
+    path('info/', include('info.urls')),
 ]
 
 if settings.DEBUG:

essenza/info/tests.py

@@ -1,3 +1,106 @@
-from django.test import TestCase
+from django.test import TestCase, Client
+from django.urls import reverse
+from django.contrib.auth import get_user_model
+from django.db.models import Sum, F 
+from django.utils import timezone
 
-# Create your tests here.
+# Importa tus modelos reales
+from order.models import Order, OrderProduct, Status 
+from product.models import Product 
+
+User = get_user_model()
+
+class SalesReportsViewTests(TestCase):
+
+    @classmethod
+    def setUpTestData(cls):
+        cls.admin_user = User.objects.create(
+            username='admin_test', email='admin@test.com', password='password', role='admin'
+        )
+        cls.staff_user = User.objects.create(
+            username='staff_test', email='staff@test.com', password='password', role='staff'
+        )
+        cls.client_user = User.objects.create(
+            username='client_test', email='client@test.com', password='password', role='client'
+        )
+        cls.admin_user.set_password('password')
+        cls.admin_user.save()
+        cls.client_user.set_password('password')
+        cls.client_user.save()
+
+        cls.prod1 = Product.objects.create(name='Vela', price=10.00, stock=50)
+        cls.prod2 = Product.objects.create(name='Jabon', price=5.00, stock=100)
+
+        cls.order1 = Order.objects.create(
+            user=cls.client_user, email='client@test.com', address='Calle Falsa 123', status=Status.ENTREGADO,
+            placed_at=timezone.now() - timezone.timedelta(days=2) 
+        )
+        cls.order2 = Order.objects.create(
+            user=cls.admin_user, email='admin@test.com', address='Calle Real 456', status=Status.ENVIADO,
+            placed_at=timezone.now() - timezone.timedelta(days=1) 
+        )
+        OrderProduct.objects.create(order=cls.order1, product=cls.prod1, quantity=10) 
+        OrderProduct.objects.create(order=cls.order1, product=cls.prod2, quantity=5) 
+        OrderProduct.objects.create(order=cls.order2, product=cls.prod1, quantity=3)
+
+        cls.history_url = reverse('info:sales_reports_view', args=['history']) 
+        cls.product_url = reverse('info:sales_reports_view', args=['product'])
+        cls.user_url = reverse('info:sales_reports_view', args=['user'])
+
+    def test_unauthenticated_access_is_denied(self):
+        self.client.logout()
+        response = self.client.get(self.history_url) 
+        self.assertEqual(response.status_code, 403) 
+
+    def test_non_admin_user_gets_forbidden_403(self):
+        self.client.force_login(self.client_user)
+        response = self.client.get(self.history_url)
+        self.assertEqual(response.status_code, 403) 
+
+    def test_access_granted_to_admin_user(self):
+        self.client.force_login(self.admin_user)
+        response = self.client.get(self.history_url) 
+        self.assertEqual(response.status_code, 200)
+        self.assertTemplateUsed(response, 'info/reports_master.html')
+
+    def test_report_with_no_sales(self):
+        """Asegura que el reporte funciona (200 OK) cuando no hay órdenes en la DB."""
+        Order.objects.all().delete()
+
+        self.client.force_login(self.admin_user)
+        response = self.client.get(self.history_url) 
+
+        self.assertEqual(response.status_code, 200)
+        self.assertIn('orders', response.context)
+        self.assertEqual(response.context['orders'].count(), 0)
+        response_product = self.client.get(self.product_url)
+        self.assertEqual(response_product.status_code, 200)
+        self.assertEqual(response_product.context['sales_data'].count(), 0)
+
+
+    def test_report_excludes_null_users(self):
+        """Asegura que los pedidos sin usuario (anónimos) son excluidos del reporte de usuario."""
+        Order.objects.create(
+            user=None, email='anon@test.com', address='Unknown', status=Status.ENVIADO
+        )
+
+        self.client.force_login(self.admin_user)
+        response = self.client.get(self.user_url)
+        self.assertEqual(response.context['sales_data'].count(), 2) 
+
+        usernames = [item['user__username'] for item in response.context['sales_data']]
+        self.assertNotIn(None, usernames) 
+
+
+    def test_template_names_are_correct(self):
+        """Verifica que la plantilla de contenido y el título son correctos para cada tipo."""
+        self.client.force_login(self.admin_user)
+        response_h = self.client.get(self.history_url)
+        self.assertEqual(response_h.context['template_name'], 'info/sales_history.html')
+        self.assertEqual(response_h.context['report_title'], 'Historial Completo de Ventas')
+        response_p = self.client.get(self.product_url)
+        self.assertEqual(response_p.context['template_name'], 'info/product_sales.html')
+        self.assertEqual(response_p.context['report_title'], 'Ventas Totales por Producto')
+        response_u = self.client.get(self.user_url)
+        self.assertEqual(response_u.context['template_name'], 'info/user_sales.html')
+        self.assertEqual(response_u.context['report_title'], 'Ventas Totales por Usuario')

essenza/info/urls.py

@@ -0,0 +1,11 @@
+# essenza/info/urls.py
+
+from django.urls import path
+from . import views
+
+app_name = 'info' 
+
+urlpatterns = [
+    path("reports/", views.SalesReportsView.as_view(), {'report_type': 'history'}, name="sales_history_report"),
+    path("reports/<str:report_type>/", views.SalesReportsView.as_view(), name="sales_reports_view"),
+]

essenza/info/views.py

@@ -1,6 +1,63 @@
-# views.py (donde se encuentra la función info_view)
+# essenza/info/views.py
+
+from django.contrib.auth.mixins import LoginRequiredMixin, UserPassesTestMixin
+from django.db.models import Sum, F, Count 
+from django.shortcuts import redirect, render
+from django.urls import reverse
+from django.views import View
+from django.http import HttpResponseForbidden 
+
+from order.models import Order, OrderProduct
 
-from django.shortcuts import render
 
 def info_view(request):
-    return render(request, "info/info.html")
+    return render(request, "info/info.html")
+
+class SalesReportsView(LoginRequiredMixin, UserPassesTestMixin, View):
+    """
+    Maneja la visualización de los tres tipos de reportes:
+    history (Historial de Pedidos), product (Ventas por Producto), user (Ventas por Usuario).
+    """
+    raise_exception = True 
+
+    def test_func(self):
+        return self.request.user.is_authenticated and self.request.user.role == "admin"
+    def get(self, request, report_type='history'):
+        reports_nav = [
+            {'id': 'history', 'name': 'Historial de Ventas', 'url': reverse('info:sales_reports_view', args=['history'])},
+            {'id': 'product', 'name': 'Ventas por Producto', 'url': reverse('info:sales_reports_view', args=['product'])},
+            {'id': 'user', 'name': 'Ventas por Usuario', 'url': reverse('info:sales_reports_view', args=['user'])},
+        ]
+
+        context = {
+            'reports_nav': reports_nav,
+            'current_report': report_type, 
+        }
+
+        if report_type == 'product':
+            context['report_title'] = 'Ventas Totales por Producto'
+            context['template_name'] = 'info/product_sales.html'
+            context['sales_data'] = OrderProduct.objects.values(
+                'product__id', 'product__name' 
+            ).annotate(
+                total_sold=Sum('quantity'),
+                total_revenue=Sum(F('quantity') * F('product__price')) 
+            ).order_by('-total_revenue')
+
+        elif report_type == 'user':
+            context['report_title'] = 'Ventas Totales por Usuario'
+            context['template_name'] = 'info/user_sales.html'
+            context['sales_data'] = Order.objects.values(
+                'user__id', 'user__first_name', 'user__email' 
+            ).annotate(
+                total_spent=Sum(F('order_products__quantity') * F('order_products__product__price'))
+            ).exclude(
+                user__isnull=True 
+            ).order_by('-total_spent')
+
+        else: 
+            context['report_title'] = 'Historial Completo de Ventas'
+            context['template_name'] = 'info/sales_history.html'
+            context['orders'] = Order.objects.all().order_by('-placed_at')
+
+        return render(request, 'info/reports_master.html', context)

essenza/templates/base.html

@@ -518,6 +518,7 @@
           <a href="{% url 'product_list' %}">Productos</a>
           <a href="{% url 'order_list_admin' %}">Pedidos</a>
           <a href="{% url 'user_list' %}">Usuarios</a>
+          <a href="{% url 'info:sales_history_report' %}">Ventas</a>
         {% else %}
           <a href="{% url 'dashboard' %}">Escaparate</a>
           <a href="{% url 'catalog' %}">Catalogo</a>

essenza/templates/info/product_sales.html

@@ -0,0 +1,27 @@
+<div class="report-table-container">
+    <h2>Resumen por Producto</h2>
+    <table class="report-table">
+        <thead>
+            <tr>
+                <th>ID Producto</th>
+                <th>Nombre del Producto</th>
+                <th>Cantidad Vendida</th>
+                <th>Ingresos Totales (€)</th>
+            </tr>
+        </thead>
+        <tbody>
+            {% for item in sales_data %} 
+            <tr>
+                <td>{{ item.product__id }}</td>
+                <td>{{ item.product__name }}</td>
+                <td>{{ item.total_sold }}</td>
+                <td>{{ item.total_revenue|floatformat:2 }} €</td>
+            </tr>
+            {% empty %}
+            <tr>
+                <td colspan="4" style="text-align: center; color: #999;">No hay datos de ventas de productos.</td>
+            </tr>
+            {% endfor %}
+        </tbody>
+    </table>
+</div>

essenza/templates/info/reports_master.html

@@ -0,0 +1,82 @@
+{% extends "base.html" %}
+{% load humanize %}
+{% load static %}
+
+{% block title %}Reportes · Essenza{% endblock %}
+
+{% block top_nav %}{% endblock %} 
+
+{% block extra_head %}
+<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.0.0/css/all.min.css">
+<style>
+    /* =======================================================
+    INICIO DEL CSS COMPLETO (SOLO ESTILOS)
+    ======================================================= */
+    /* === ESTILOS BASE Y CONTENEDOR DE PÁGINA === */
+    body { background-color: #faf7f2; font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif; color: #333; }
+
+    /* Clase envolvente única para el contenido de reporte */
+    .page-container-reports { 
+        max-width: 1000px; 
+        margin: 40px auto; 
+        padding: 0 20px 60px; 
+    }
+
+    /* --- CABECERA --- */
+    .page-header { margin-bottom: 30px; text-align: center; }
+    .page-header h1 { font-size: 2rem; color: #c06b3e; font-weight: 800; margin: 0 0 10px 0; letter-spacing: -0.5px; }
+    .page-header p { color: #666; font-size: 1rem; margin: 0; }
+
+    /* --- BARRA DE FILTROS (BOTONES DE NAVEGACIÓN) --- */
+    .filters { display: flex; justify-content: center; flex-wrap: wrap; gap: 15px; margin-bottom: 35px; }
+    .filter-btn {
+        background-color: white; border: 1px solid #e0e0e0; border-radius: 8px; 
+        padding: 10px 20px; cursor: pointer; transition: all 0.3s ease; 
+        box-shadow: 0 2px 5px rgba(0, 0, 0, 0.05); color: #555; 
+        font-weight: 600; text-decoration: none; display: inline-flex; 
+        align-items: center; gap: 8px; font-size: 0.95rem;
+    }
+    .filter-btn:hover { border-color: #c06b3e; color: #c06b3e; transform: translateY(-2px); box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1); }
+    .filter-btn.active {
+        background-color: #c06b3e; color: white; border-color: #c06b3e; 
+        box-shadow: 0 4px 12px rgba(192, 107, 62, 0.2);
+    }
+
+    /* --- ESTILOS DE TABLAS DE REPORTE --- */
+    .report-table-container {
+        margin-top: 20px;
+        padding: 25px;
+        background: white;
+        border-radius: 12px;
+        box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
+        border: 1px solid #eee;
+        overflow-x: auto;
+    }
+    .report-table { width: 100%; border-collapse: collapse; min-width: 650px; }
+    .report-table th, .report-table td { padding: 12px 15px; text-align: left; border-bottom: 1px solid #f0f0f0; font-size: 0.95rem; }
+    .report-table th { background-color: #f8f8f8; color: #555; font-weight: 700; text-transform: uppercase; letter-spacing: 0.5px; }
+    .report-table tr:hover { background-color: #fffaf7; }
+    .total-row { background-color: #fff5e8; font-weight: 800; color: #c06b3e; }
+
+    @media (max-width: 768px) {
+        .filters { flex-direction: column; align-items: stretch; }
+        .filter-btn { justify-content: center; }
+    }
+</style>
+{% endblock %}
+
+{% block content %}
+<div class="page-container-reports">
+
+    <div class="page-header">
+        <h1>Reportes Administrativos</h1>
+        <p>{{ report_title|default:"Selecciona un reporte de ventas" }}</p>
+    </div>
+
+    {% include 'info/reports_nav.html' %}
+
+    <div id="report-content">
+        {% include template_name %} 
+    </div>
+</div>
+{% endblock %}

essenza/templates/info/reports_nav.html

@@ -0,0 +1,9 @@
+{% load static %}
+<div class="filters">
+    {% for nav_item in reports_nav %}
+        <a href="{{ nav_item.url }}" 
+           class="filter-btn {% if current_report == nav_item.id %}active{% endif %}" >
+            {{ nav_item.name }}
+        </a>
+    {% endfor %}
+</div>

essenza/templates/info/sales_history.html

@@ -0,0 +1,29 @@
+<div class="report-table-container">
+    <h2>Listado de Ventas</h2>
+    <table class="report-table">
+        <thead>
+            <tr>
+                <th>ID Venta</th>
+                <th>Cliente</th>
+                <th>Email</th>
+                <th>Fecha</th>
+                <th>Total (€)</th>
+            </tr>
+        </thead>
+        <tbody>
+            {% for order in orders %} 
+            <tr>
+                <td>#{{ order.id }}</td>
+                <td>{{ order.user.username|default:"Anónimo" }}</td>
+                <td>{{ order.email }}</td>
+                <td>{{ order.placed_at|date:"d M Y, H:i" }}</td>
+                <td>{{ order.total_price|floatformat:2 }} €</td>
+            </tr>
+            {% empty %}
+            <tr>
+                <td colspan="5" style="text-align: center; color: #999;">No hay ventas para mostrar.</td>
+            </tr>
+            {% endfor %}
+        </tbody>
+    </table>
+</div>

essenza/templates/info/user_sales.html

@@ -0,0 +1,27 @@
+<div class="report-table-container">
+    <h2>Resumen por Cliente</h2>
+    <table class="report-table">
+        <thead>
+            <tr>
+                <th>ID Usuario</th>
+                <th>Nombre de Usuario</th>
+                <th>Correo Electrónico</th>
+                <th>Total Gastado (€)</th>
+            </tr>
+        </thead>
+        <tbody>
+            {% for sale in sales_data %} 
+            <tr>
+                <td>{{ sale.user__id }}</td>
+                <td>{{ sale.user__first_name }}</td>
+                <td>{{ sale.user__email }}</td>
+                <td>{{ sale.total_spent|floatformat:2 }} €</td>
+            </tr>
+            {% empty %}
+            <tr>
+                <td colspan="4" style="text-align: center; color: #999;">No hay datos de ventas por usuario.</td>
+            </tr>
+            {% endfor %}
+        </tbody>
+    </table>
+</div>