ZDL-95: Integrate sending of email after order

.gitignore

@@ -145,4 +145,3 @@ dmypy.json
 .pytype/
 
 # End of https://www.toptal.com/developers/gitignore/api/django
-static

README.md

@@ -44,6 +44,11 @@ python manage.py createsuperuser
 python manage.py runserver
 ```
 
+#### Access on browser
+```
+http://localhost:8000/api-docs
+```
+
 ### Setup with Docker (Alternative)
 ```
 docker-compose up -d

orders/models.py

@@ -1,7 +1,15 @@
+from typing import Dict
+
+from django.conf import settings
+from django.core.mail import send_mail
 from django.db import models
 from django.db.models.signals import post_delete
 from django.dispatch import receiver
+from django.template.loader import render_to_string
 from django.utils import timezone
+from django.utils.html import strip_tags
+from pydantic import EmailStr
+from validate_email import validate_email
 
 from authentication.models import User
 from products.models import Product
@@ -43,6 +51,23 @@ def get_cart_items(self):
         total = sum([item.quantity for item in items])
         return total
 
+    @staticmethod
+    def send_email_notification(
+        customer_email: EmailStr, template: str, subject: str, context_data: Dict
+    ):
+        if validate_email(email_address=customer_email, check_smtp=False):
+            html_message = render_to_string(template, context_data)
+            plain_message = strip_tags(html_message)
+
+            send_mail(
+                subject,
+                plain_message,
+                settings.EMAIL_HOST_USER,
+                [customer_email, settings.EMAIL_HOST_USER],
+                fail_silently=False,
+                html_message=html_message,
+            )
+
 
 class OrderItem(models.Model):
     product = models.ForeignKey(Product, on_delete=models.SET_NULL, null=True)

orders/tests/test_orders_api.py

@@ -1,4 +1,5 @@
 from datetime import datetime
+from unittest.mock import patch
 
 import pytest
 
@@ -149,6 +150,8 @@ def test_update_cart(logged_in_client):
 
 
 @pytest.mark.django_db
+@patch("django.core.mail.send_mail", lambda **kwargs: kwargs)
+@patch("validate_email.validate_email", lambda z, x: x)
 def test_process_order(logged_in_client, logged_in_user):
     """
     Test process order

orders/views.py

@@ -1,4 +1,5 @@
-import datetime
+from datetime import datetime
+from uuid import uuid4
 
 from rest_condition import Or
 from rest_framework import mixins, status, viewsets
@@ -105,7 +106,8 @@ def update_cart(self, request):
     )
     def process_order(self, request):
         request_data = self.get_serializer(data=request.data)
-        transaction_id = datetime.datetime.now().timestamp()
+        transaction_id = str(uuid4())
+        transaction_timestamp = datetime.now().strftime("%b %d, %Y %H:%M")
         customer = request.user
         self.check_object_permissions(self.request, customer)
 
@@ -116,18 +118,37 @@ def process_order(self, request):
         order.complete = True
         order.save()
 
-        if order.shipping:
-            shipping = ShippingAddress.objects.create(
-                customer=customer,
-                order=order,
-                address=request_data.validated_data["address"],
-                city=request_data.validated_data["city"],
-                state=request_data.validated_data["state"],
-                zipcode=request_data.validated_data["zipcode"],
-            )
-            shipping.save()
-
-            return Response(
-                ShippingAddressSerializer(shipping).data, status=status.HTTP_201_CREATED
-            )
-        return Response("Order not found", status=status.HTTP_400_BAD_REQUEST)
+        if not order.shipping:
+            return Response("Order not found", status=status.HTTP_400_BAD_REQUEST)
+
+        shipping = ShippingAddress.objects.create(
+            customer=customer,
+            order=order,
+            address=request_data.validated_data["address"],
+            city=request_data.validated_data["city"],
+            state=request_data.validated_data["state"],
+            zipcode=request_data.validated_data["zipcode"],
+        )
+        shipping.save()
+
+        Order.send_email_notification(
+            customer.email,
+            "invoice_email_template.html",
+            f"Order Being Processed: {order.transaction_id}",
+            {
+                "user_first_name": customer.first_name,
+                "user_last_name": customer.last_name,
+                "shipping_address": shipping.address,
+                "shipping_city": shipping.city,
+                "shipping_state": shipping.state,
+                "shipping_zipcode": shipping.zipcode,
+                "invoice_code": transaction_id,
+                "order_items": order.order_items,
+                "order": order,
+                "date_ordered": transaction_timestamp,
+            },
+        )
+
+        return Response(
+            ShippingAddressSerializer(shipping).data, status=status.HTTP_201_CREATED
+        )

requirements.txt

@@ -5,6 +5,7 @@ attrs==19.3.0
 black==20.8b1
 certifi==2020.6.20
 chardet==3.0.4
+charset-normalizer==2.0.9
 click==7.1.2
 colorama==0.4.4
 coreapi==2.3.3
@@ -14,12 +15,14 @@ Django==3.0.8
 django-cors-headers==3.7.0
 djangorestframework==3.11.0
 djangorestframework-simplejwt==4.4.0
+dnspython==2.1.0
 drf-yasg==1.17.1
 factory-boy==3.2.0
 Faker==8.8.0
+filelock==3.4.0
 flake8==3.8.3
 gunicorn==20.0.4
-idna==2.10
+idna==3.0
 importlib-metadata==1.7.0
 inflection==0.5.1
 iniconfig==1.0.1
@@ -37,6 +40,7 @@ Pillow==7.2.0
 pluggy==0.13.1
 psycopg2-binary==2.8.6
 py==1.9.0
+py3-validate-email==1.0.5
 pycodestyle==2.6.0
 pydantic==1.6.1
 pyflakes==2.2.0
@@ -48,7 +52,7 @@ pytest-django==3.9.0
 python-dateutil==2.8.1
 pytz==2020.1
 regex==2020.7.14
-requests==2.24.0
+requests==2.26.0
 rest-condition==1.0.3
 ruamel.yaml==0.16.12
 ruamel.yaml.clib==0.2.2