Add endpoint

src/registrar/config/urls.py

@@ -22,7 +22,7 @@ from registrar.views.admin_views import (
 )
 
 from registrar.views.domain_request import Step
-from registrar.views.domain_requests_json import get_domain_requests_json
+from registrar.views.domain_requests_json import get_domain_requests_json, get_action_needed_email
 from registrar.views.domains_json import get_domains_json
 from registrar.views.utility import always_404
 from api.views import available, get_current_federal, get_current_full
@@ -213,6 +213,7 @@ urlpatterns = [
     ),
     path("get-domains-json/", get_domains_json, name="get_domains_json"),
     path("get-domain-requests-json/", get_domain_requests_json, name="get_domain_requests_json"),
+    path("get-domain-requests-json/<int:pk>/action-needed-email/<str:reason>", get_action_needed_email, name="get_action_needed_email"),
 ]
 
 # Djangooidc strips out context data from that context, so we define a custom error

src/registrar/models/domain_request.py

@@ -12,6 +12,7 @@ from registrar.models.federal_agency import FederalAgency
 from registrar.models.utility.generic_helper import CreateOrUpdateOrganizationTypeHelper
 from registrar.utility.errors import FSMDomainRequestError, FSMErrorCodes
 from registrar.utility.constants import BranchChoices
+from django.template.loader import get_template
 
 from .utility.time_stamped_model import TimeStampedModel
 from ..utility.email import send_templated_email, EmailSendingError
@@ -541,6 +542,29 @@ class DomainRequest(TimeStampedModel):
         blank=True,
     )
 
+
+    def get_action_needed_reason_default_email_text(self, action_needed_reason: str):
+        """Returns the default email associated with the given action needed reason"""
+        logger.info(f"reason? {action_needed_reason}")
+        if action_needed_reason is None or action_needed_reason == self.ActionNeededReasons.OTHER:
+            return {}
+
+        # Get the email body
+        template_path = f"emails/action_needed_reasons/{action_needed_reason}.txt"
+        template = get_template(template_path)
+
+        # Get the email subject
+        template_subject_path = f"emails/action_needed_reasons/{action_needed_reason}_subject.txt"
+        subject_template = get_template(template_subject_path)
+
+        # Return the content of the rendered views
+        context = {"domain_request": self}
+        return {
+            "subject_text": subject_template.render(context=context),
+            "email_body_text": template.render(context=context)
+        }
+
+
     def sync_organization_type(self):
         """
         Updates the organization_type (without saving) to match

src/registrar/views/domain_requests_json.py

@@ -1,3 +1,4 @@
+import logging
 from django.http import JsonResponse
 from django.core.paginator import Paginator
 from registrar.models import DomainRequest
@@ -5,6 +6,10 @@ from django.utils.dateformat import format
 from django.contrib.auth.decorators import login_required
 from django.urls import reverse
 from django.db.models import Q
+from django.core.exceptions import PermissionDenied
+
+
+logger = logging.getLogger(__name__)
 
 
 @login_required
@@ -97,3 +102,21 @@ def get_domain_requests_json(request):
             "unfiltered_total": unfiltered_total,
         }
     )
+
+
+
+@login_required
+def get_action_needed_email(request, pk, reason):
+    has_access = request.user.is_staff or request.user.is_superuser
+    # TODO also check the perm group 
+    if not has_access:
+        raise PermissionDenied("You do not have permission to access this resource.")
+    
+    logger.info(f"pk: {pk} reason: {reason}")
+    domain_request = DomainRequest.objects.filter(id=pk).first()
+
+    reason_dict = domain_request.get_action_needed_reason_default_email_text(reason)
+
+    return JsonResponse(
+        reason_dict
+    )