feat: Implement PDF receipt generation and email sending for purchases

tienda/tasks.py

@@ -1,9 +1,11 @@
 from celery import shared_task
 from django.conf import settings
 from django.template.loader import render_to_string
+from django.core.mail import EmailMessage
 from .utilities import send_email, send_hemail
 from .vars import login_message, verify_message
 import random, string
+from . import pdf
 
 from .models import User, VerificationCode
 @shared_task
@@ -51,3 +53,24 @@ def enviar_correo_recuperacion(email: str):
         )
 
         send_hemail(email, "Reset de Contraseña", html_content, "Estas reseteando la contraseña...")
+
+
+# Purchased items should be a list of dictionary, the dictionary must follow this tags: amount, product name, price (each)
+@shared_task
+def process_purchase(user_id: int, purchased_items: list, payment_method: str):
+    user = User.objects.get(id=user_id)
+    total = 0
+    for i in purchased_items:
+        total += i["price"]*i["amount"]
+    pdf_data = pdf.generar_recibo(user.get_full_name(), total, purchased_items, payment_method)
+    
+    email = EmailMessage(
+        subject="Tu recibo de compra",
+        body = "Hola, adjunto encontrarás el recibo de tu reciente transacción",
+        from_email = settings.DEFAULT_FROM_EMAIL,
+        to = [user.email]
+    )
+
+    email.attach("recibo.pdf", pdf_data, "application/pdf")
+
+    email.send()