feat: add trusted ticket intake backend

backend/apps/tickets/api.py

@@ -24,7 +24,13 @@ from apps.tickets.schemas import (
     TicketStatusIn,
     TicketUpdateIn,
 )
-from apps.tickets.services import TicketStatusError, transition_requires_remark, transition_ticket
+from apps.tickets.services import (
+    TicketDataError,
+    TicketStatusError,
+    create_ticket_from_fields,
+    transition_requires_remark,
+    transition_ticket,
+)
 
 router = Router(tags=["tickets"])
 
@@ -101,37 +107,10 @@ def serialize_ticket_event(event: TicketEvent) -> dict:
 @router.post("", response=TicketOut)
 def create_ticket(request, payload: TicketIn):
     require_permission(request, "ticket.create")
-    assignee = None
-    if payload.assignee_id:
-        assignee = get_user_model().objects.filter(id=payload.assignee_id).first()
-    category = None
-    if payload.category_code:
-        category = TicketCategory.objects.filter(code=payload.category_code, enabled=True).first()
-        if category is None:
-            raise HttpError(400, "Unknown ticket category")
-    ticket = Ticket.objects.create(
-        ticket_no=next_ticket_no(),
-        title=payload.title,
-        description=payload.description,
-        category=category,
-        priority=payload.priority,
-        problem_performance=payload.problem_performance,
-        problem_object=payload.problem_object,
-        submitter_name=payload.submitter_name,
-        submitter_org=payload.submitter_org,
-        impact_scope=payload.impact_scope,
-        environment=payload.environment,
-        related_system=payload.related_system,
-        assignee=assignee,
-        requester=request.user if request.user.is_authenticated else None,
-        created_by=request.user if request.user.is_authenticated else None,
-    )
-    TicketEvent.objects.create(
-        ticket=ticket,
-        event_type="created",
-        to_value={"status": ticket.status, "category_code": payload.category_code},
-        operator=request.user if request.user.is_authenticated else None,
-    )
+    try:
+        ticket = create_ticket_from_fields(payload.dict(), request.user)
+    except TicketDataError as error:
+        raise HttpError(400, str(error)) from error
     return serialize_ticket(ticket)