Separate mail template for incomplete payment notifications (#2999)

* Separate mail template for incomplete payment notifications

* Update src/pretix/base/settings.py

Co-authored-by: Richard Schreiber <wiffbi@gmail.com>

* Update src/pretix/control/forms/event.py

Co-authored-by: Richard Schreiber <wiffbi@gmail.com>

---------

Co-authored-by: Raphael Michel <mail@raphaelmichel.de>
Co-authored-by: Richard Schreiber <wiffbi@gmail.com>

src/pretix/base/email.py

@@ -394,6 +394,11 @@ def base_placeholders(sender, **kwargs):
             lambda event_or_subevent, refund_amount: LazyCurrencyNumber(refund_amount, event_or_subevent.currency),
             lambda event_or_subevent: LazyCurrencyNumber(Decimal('42.23'), event_or_subevent.currency)
         ),
+        SimpleFunctionalMailTextPlaceholder(
+            'pending_sum', ['event', 'pending_sum'],
+            lambda event, pending_sum: LazyCurrencyNumber(pending_sum, event.currency),
+            lambda event: LazyCurrencyNumber(Decimal('42.23'), event.currency)
+        ),
         SimpleFunctionalMailTextPlaceholder(
             'total_with_currency', ['event', 'order'], lambda event, order: LazyCurrencyNumber(order.total,
                                                                                                event.currency),

src/pretix/base/settings.py

@@ -2019,10 +2019,6 @@ Your {event} team"""))
         'type': LazyI18nString,
         'default': LazyI18nString.from_gettext(gettext_noop("Your order is about to expire: {code}")),
     },
-    'mail_subject_order_pending_warning': {
-        'type': LazyI18nString,
-        'default': LazyI18nString.from_gettext(gettext_noop("Your order is pending payment: {code}")),
-    },
     'mail_text_order_expire_warning': {
         'type': LazyI18nString,
         'default': LazyI18nString.from_gettext(gettext_noop("""Hello,
@@ -2037,6 +2033,10 @@ You can view the payment information and the status of your order at
 Best regards,
 Your {event} team"""))
     },
+    'mail_subject_order_pending_warning': {
+        'type': LazyI18nString,
+        'default': LazyI18nString.from_gettext(gettext_noop("Your order is pending payment: {code}")),
+    },
     'mail_text_order_pending_warning': {
         'type': LazyI18nString,
         'default': LazyI18nString.from_gettext(gettext_noop("""Hello,
@@ -2047,6 +2047,26 @@ Please keep in mind that you are required to pay before {expire_date}.
 You can view the payment information and the status of your order at
 {url}
 
+Best regards,
+Your {event} team"""))
+    },
+    'mail_subject_order_incomplete_payment': {
+        'type': LazyI18nString,
+        'default': LazyI18nString.from_gettext(gettext_noop("Incomplete payment received: {code}")),
+    },
+    'mail_text_order_incomplete_payment': {
+        'type': LazyI18nString,
+        'default': LazyI18nString.from_gettext(gettext_noop("""Hello,
+
+we received a payment for your order for {event}.
+
+Unfortunately, the received amount is less than the full amount
+required. Your order is therefore still considered unpaid, as it is
+missing additional payment of **{pending_sum}**.
+
+You can view the payment information and the status of your order at
+{url}
+
 Best regards,
 Your {event} team"""))
     },

src/pretix/control/forms/event.py

@@ -1072,6 +1072,18 @@ class MailSettingsForm(SettingsForm):
         required=False,
         widget=I18nTextInput,
     )
+    mail_subject_order_incomplete_payment = I18nFormField(
+        label=_("Subject"),
+        required=False,
+        widget=I18nTextInput,
+    )
+    mail_text_order_incomplete_payment = I18nFormField(
+        label=_("Text"),
+        required=False,
+        widget=I18nTextarea,
+        help_text=_("This email only applies to payment methods that can receive incomplete payments, "
+                    "such as bank transfer."),
+    )
     mail_subject_waiting_list = I18nFormField(
         label=_("Subject"),
         required=False,
@@ -1202,6 +1214,8 @@ class MailSettingsForm(SettingsForm):
         'mail_text_order_expire_warning': ['event', 'order'],
         'mail_subject_order_expire_warning': ['event', 'order'],
         'mail_subject_order_pending_warning': ['event', 'order'],
+        'mail_text_order_incomplete_payment': ['event', 'order'],
+        'mail_subject_order_incomplete_payment': ['event', 'order'],
         'mail_text_order_custom_mail': ['event', 'order'],
         'mail_text_download_reminder': ['event', 'order'],
         'mail_subject_download_reminder': ['event', 'order'],

src/pretix/control/templates/pretixcontrol/event/mail.html

@@ -103,7 +103,7 @@
                     {% include "pretixcontrol/event/mail_settings_fragment.html" with pid="order_changed" title=title_order_changed items="mail_subject_order_changed,mail_text_order_changed" %}
 
                     {% blocktrans asvar title_payment_reminder %}Payment reminder{% endblocktrans %}
-                    {% include "pretixcontrol/event/mail_settings_fragment.html" with pid="order_expirew" title=title_payment_reminder items="mail_days_order_expire_warning,mail_subject_order_expire_warning,mail_text_order_expire_warning,mail_subject_order_pending_warning,mail_text_order_pending_warning" exclude="mail_days_order_expire_warning" %}
+                    {% include "pretixcontrol/event/mail_settings_fragment.html" with pid="order_expirew" title=title_payment_reminder items="mail_days_order_expire_warning,mail_subject_order_expire_warning,mail_text_order_expire_warning,mail_subject_order_pending_warning,mail_text_order_pending_warning,mail_subject_order_incomplete_payment,mail_text_order_incomplete_payment" exclude="mail_days_order_expire_warning" %}
 
                     {% blocktrans asvar title_waiting_list_notification %}Waiting list notification{% endblocktrans %}
                     {% include "pretixcontrol/event/mail_settings_fragment.html" with pid="waiting_list" title=title_waiting_list_notification items="mail_subject_waiting_list,mail_text_waiting_list" %}

src/pretix/plugins/banktransfer/tasks.py

@@ -42,7 +42,7 @@ from django.conf import settings
 from django.db import transaction
 from django.db.models import Max, Min, Q
 from django.db.models.functions import Length
-from django.utils.translation import gettext, gettext_noop
+from django.utils.translation import gettext_noop
 from django_scopes import scope, scopes_disabled
 
 from pretix.base.email import get_email_context
@@ -64,9 +64,9 @@ logger = logging.getLogger(__name__)
 
 def notify_incomplete_payment(o: Order):
     with language(o.locale, o.event.settings.region):
-        email_template = o.event.settings.mail_text_order_expire_warning
+        email_template = o.event.settings.mail_text_order_incomplete_payment
-        email_context = get_email_context(event=o.event, order=o)
+        email_context = get_email_context(event=o.event, order=o, pending_sum=o.pending_sum)
-        email_subject = gettext('Your order received an incomplete payment: %(code)s') % {'code': o.code}
+        email_subject = o.event.settings.mail_subject_order_incomplete_payment
 
         try:
             o.send_mail(

src/tests/plugins/banktransfer/test_import.py

@@ -174,7 +174,8 @@ def test_underpaid(env, job):
         assert env[2].pending_sum == Decimal('0.50')
 
     assert len(djmail.outbox) == 1
-    assert djmail.outbox[0].subject == 'Your order received an incomplete payment: 1Z3AS'
+    assert djmail.outbox[0].subject == 'Incomplete payment received: 1Z3AS'
+    assert '€0.50' in djmail.outbox[0].body
 
 
 @pytest.mark.django_db