feat: added tpv form view

tpv/templates/tpv/form.html

@@ -0,0 +1,20 @@
+<div>
+  {% if order.status == 'PEN' %}
+  <form name="from" action="{{ redsys_target_url }}" method="POST">
+    {% csrf_token %}
+    <input type="hidden" name="Ds_SignatureVersion" value="{{ signature_version }}"/>
+    <input type="hidden" name="Ds_MerchantParameters" value="{{ merchant_parameters }}"/>
+    <input type="hidden" name="Ds_Signature" value="{{ signature }}"/>
+
+    {% if order.contact_email != '' %}
+      <input
+        class="mt-6 w-full rounded-md bg-primary-500 py-1.5 font-medium text-primary-50 hover:bg-primary-600 cursor-pointer"
+        type="submit" value="Ir a pagar">
+    {% else %}
+      <input
+        class="mt-6 w-full rounded-md bg-primary-500 py-1.5 font-medium text-primary-50 hover:bg-primary-600 cursor-pointer"
+        type="submit" value="Ir a pagar" disabled>
+    {% endif %}
+  </form>
+{% endif %}
+</div>

tpv/urls.py

@@ -1,5 +1,5 @@
 from django.urls import path
-from tpv.views import transaction_created, webhook, payment_accepted, payment_rejected
+from tpv.views import transaction_created, webhook, payment_accepted, payment_rejected, payment_form
 
 app_name = "tpv"
 
@@ -9,4 +9,5 @@ urlpatterns = [
     path("transaction/<str:transaction>/webhook/", webhook, name="webhook"),
     path("transaction/<str:transaction>/ok/", payment_accepted, name="ok"),
     path("transaction/<str:transaction>/ko/", payment_rejected, name="ko"),
+    path("transaction/<str:transaction>/form/", payment_form, name="payment_form"),
 ]

tpv/views.py

@@ -2,6 +2,7 @@ from django.urls import reverse
 from django.views.decorators.csrf import csrf_exempt
 from django.shortcuts import render, get_object_or_404, redirect
 from django.http.response import HttpResponse
+from django.views.generic import TemplateView
 
 from tpv.forms import UpdateEmailForm
 from tpv.models import PaymentTransaction
@@ -75,3 +76,24 @@ def transaction_created(request, transaction):
             "redsys_target_url": client.get_target_url(),
         },
     )
+
+
+class PaymentFormView(TemplateView):
+    template_name = "tpv/form.html"
+
+    def get_context_data(self, transaction):
+        transaction = get_object_or_404(PaymentTransaction, hash=transaction)
+        client = RedsysClient()
+        parameters = client.get_body_for_transaction(transaction)
+        target_url = client.get_target_url()
+
+        return {
+            "order": transaction,
+            "signature_version": parameters.get("Ds_SignatureVersion"),
+            "merchant_parameters": parameters.get("Ds_MerchantParameters"),
+            "signature": parameters.get("Ds_Signature"),
+            "redsys_target_url": target_url,
+        }
+
+
+payment_form = PaymentFormView.as_view()