fix: don't send pre-payment notification email

closes: https://gitea.gna.org/Hostea/dashboard/issues/49

billing/tests.py

@@ -122,17 +122,6 @@ class BillingTest(TestCase):
             True,
         )
 
-        invoice_generated_mail = mail.outbox.pop()
-        self.assertEqual(
-            all(
-                [
-                    invoice_generated_mail.to[0] == self.email,
-                    "An invoice is generated" in invoice_generated_mail.body,
-                ]
-            ),
-            True,
-        )
-
         ## payment failure page; no real functionality but user is redirected here
         # by stripe if payment is successful
         resp = c.get(reverse("billing.invoice.fail", args=(payment.public_ref,)))

billing/utils.py

@@ -98,27 +98,4 @@ def generate_invoice(instance: Instance) -> Payment:
             instance=instance,
         )
 
-        invoice_link = get_invoice_link(payment=payment)
-
-        ctx = {
-            "username": instance.owned_by.username,
-            "link": invoice_link,
-            "payment": payment,
-        }
-
-        body = render_to_string(
-            "billing/emails/payment-notification.txt",
-            context=ctx,
-        )
-
-        email = instance.owned_by.email
-        sender = settings.DEFAULT_FROM_EMAIL
-
-        send_mail(
-            subject="[Hostea] An invoice is generated for your Hostea VM",
-            message=body,
-            from_email=f"No reply Hostea<{sender}>",  # TODO read from settings.py
-            recipient_list=[email],
-        )
-
     return payment