Self-service refund form (#1135)

* Auto-refund

* Add missing template

* Notification for requested refund

* Model-level tests

* Add front-end tests

* Default to notify

src/pretix/presale/templates/pretixpresale/event/order.html

@@ -168,7 +168,7 @@
                             {% for i in invoices %}
                                 <li>
                                     <a href="{% eventurl event "presale:event.invoice.download" invoice=i.pk secret=order.secret order=order.code %}">
-                                        {% if i.is_cancellation %}{% trans "Cancellation" %}{% else %}{% trans "Invoice" %}{% endif %}
+                                        {% if i.is_cancellation %}{% trans "Cancellation" context "invoice" %}{% else %}{% trans "Invoice" %}{% endif %}
                                         {{ i.number }}</a> ({{ i.date|date:"SHORT_DATE_FORMAT" }})
                                 </li>
                             {% endfor %}
@@ -245,16 +245,57 @@
         {% endif %}
         <div class="clearfix"></div>
     </div>
-    {% if order.can_user_cancel %}
-        <div class="row">
-            <div class="col-md-12 text-right">
-                <p>
-                    <a href="{% eventurl event 'presale:event.order.cancel' secret=order.secret order=order.code %}"
+    {% if order.cancel_allowed %}
+        <div class="panel panel-primary cart">
+            <div class="panel-heading">
+                <h3 class="panel-title">
+                    {% trans "Cancellation" context "action" %}
+                </h3>
+            </div>
+            <div class="panel-body">
+                {% if order.user_cancel_allowed %}
+                    {% if order.status == "p" and order.total != 0 %}
+                        {% if order.user_cancel_fee %}
+                            <p>
+                                {% blocktrans trimmed with fee=order.user_cancel_fee|money:request.event.currency %}
+                                    You can cancel this order. In this case, a cancellation fee of <strong>{{ fee }}</strong>
+                                    will be kept and you will receive a refund of the remainder to your original payment method.
+                                {% endblocktrans %}
+                                {% trans "This will invalidate all of your tickets." %}
+                            </p>
+                        {% else %}
+                            <p>
+                                {% blocktrans trimmed %}
+                                    You can cancel this order and receive a full refund to your original payment method.
+                                {% endblocktrans %}
+                                {% trans "This will invalidate all of your tickets." %}
+                            </p>
+                        {% endif %}
+                        <a href="{% eventurl event 'presale:event.order.cancel' secret=order.secret order=order.code %}"
+                           class="btn btn-danger">
+                            <span class="fa fa-remove"></span>
+                            {% trans "Cancel order" %}
+                        </a>
+                    {% else %}
+                        <p>
+                            {% blocktrans trimmed %}
+                                You can cancel this order using the following button.
+                            {% endblocktrans %}
+                            {% trans "This will invalidate all of your tickets." %}
+                        </p>
+                        <a href="{% eventurl event 'presale:event.order.cancel' secret=order.secret order=order.code %}"
                             class="btn btn-danger">
-                        <span class="fa fa-remove"></span>
-                        {% trans "Cancel order" %}
-                    </a>
-                </p>
+                            <span class="fa fa-remove"></span>
+                            {% trans "Cancel order" %}
+                        </a>
+                    {% endif %}
+                {% else %}
+                    <p>
+                        {% blocktrans trimmed %}
+                            You can not cancel this order yourself. Please contact the event organizer for more information.
+                        {% endblocktrans %}
+                    </p>
+                {% endif %}
             </div>
         </div>
     {% endif %}

src/pretix/presale/templates/pretixpresale/event/order_cancel.html

@@ -1,5 +1,6 @@
 {% extends "pretixpresale/event/base.html" %}
 {% load i18n %}
+{% load money %}
 {% load eventurl %}
 {% block title %}{% trans "Cancel order" %}{% endblock %}
 {% block content %}
@@ -8,9 +9,29 @@
             Cancel order: {{ code }}
         {% endblocktrans %}
     </h2>
-    <p>{% blocktrans trimmed %}
-        Do you really want to cancel this order? You cannot revert this action.
-    {% endblocktrans %}</p>
+    <p>
+        {% blocktrans trimmed %}
+            Do you really want to cancel this order? You cannot revert this action.
+        {% endblocktrans %}
+        {% trans "This will invalidate all of your tickets." %}
+    </p>
+    {% if can_auto_refund %}
+        <p>
+            <strong>
+                {% blocktrans trimmed with amount=refund_amount|money:request.event.currency %}
+                    The refund amount of {{ amount }} will automatically be sent back to your original payment method. Depending on the payment method,
+                    please allow for up to two weeks before this appears on your statement.
+                {% endblocktrans %}
+            </strong>
+        </p>
+    {% else %}
+        <div class="alert alert-warning">
+            {% blocktrans trimmed with amount=refund_amount|money:request.event.currency %}
+                With to the payment method you used, the refund amount of {{ amount }} <strong>can not be sent back to you automatically</strong>. Instead, the
+                event organizer will need to initiate the transfer manually. Please be patient as this might take a bit longer.
+            {% endblocktrans %}
+        </div>
+    {% endif %}
 
     <form method="post" action="{% eventurl request.event "presale:event.order.cancel.do" secret=order.secret order=order.code %}" data-asynctask>
         {% csrf_token %}

src/pretix/presale/views/order.py

@@ -566,7 +566,7 @@ class OrderCancel(EventViewMixin, OrderDetailMixin, TemplateView):
         self.kwargs = kwargs
         if not self.order:
             raise Http404(_('Unknown order code or not authorized to access this order.'))
-        if not self.order.can_user_cancel:
+        if not self.order.user_cancel_allowed:
             messages.error(request, _('You cannot cancel this order.'))
             return redirect(self.get_order_url())
         return super().dispatch(request, *args, **kwargs)
@@ -577,6 +577,10 @@ class OrderCancel(EventViewMixin, OrderDetailMixin, TemplateView):
     def get_context_data(self, **kwargs):
         ctx = super().get_context_data(**kwargs)
         ctx['order'] = self.order
+        refund_amount = self.order.total - self.order.user_cancel_fee
+        proposals = self.order.propose_auto_refunds(refund_amount)
+        ctx['refund_amount'] = refund_amount
+        ctx['can_auto_refund'] = sum(proposals.values()) == refund_amount
         return ctx
 
 
@@ -594,10 +598,13 @@ class OrderCancelDo(EventViewMixin, OrderDetailMixin, AsyncAction, View):
     def post(self, request, *args, **kwargs):
         if not self.order:
             raise Http404(_('Unknown order code or not authorized to access this order.'))
-        if not self.order.can_user_cancel:
+        if not self.order.user_cancel_allowed:
             messages.error(request, _('You cannot cancel this order.'))
             return redirect(self.get_order_url())
-        return self.do(self.order.pk)
+        fee = None
+        if self.order.status == Order.STATUS_PAID and self.order.total != Decimal('0.00'):
+            fee = self.order.user_cancel_fee
+        return self.do(self.order.pk, cancellation_fee=fee, try_auto_refund=True)
 
     def get_context_data(self, **kwargs):
         ctx = super().get_context_data(**kwargs)