apply: skip create seeker steps when job_seeker GET param is filled

itou/www/apply/views/submit_views.py

@@ -245,6 +245,37 @@ def get(self, request, *args, **kwargs):
             else:
                 self.apply_session.init({"selected_jobs": [job_description.pk]})
 
+        # Go directly to step ApplicationJobsView if we're carrying the job seeker public id with us.
+        if job_seeker_public_id := request.GET.get("job_seeker"):
+            job_description_id = request.GET.get("job_description_id", None)
+            default_url = reverse(
+                "apply:start",
+                kwargs={"company_pk": self.company.pk},
+            ) + (f"?job_description_id={job_description_id}" if job_description_id else "")
+
+            try:
+                job_seeker = (
+                    User.objects.filter(kind=UserKind.JOB_SEEKER, public_id=job_seeker_public_id)
+                    .select_related("jobseeker_profile")
+                    .first()
+                )
+            except (User.DoesNotExist, ValueError, ValidationError):
+                return HttpResponseRedirect(default_url)
+            if (
+                self.request.user.is_authenticated
+                and job_seeker
+                and self.request.user.can_view_personal_information(job_seeker)
+            ):
+                return HttpResponseRedirect(
+                    reverse(
+                        "apply:application_jobs",
+                        kwargs={"company_pk": self.company.pk, "job_seeker_public_id": job_seeker.public_id},
+                    )
+                    + (f"?job_description_id={job_description_id}" if job_description_id else "")
+                )
+            else:
+                return HttpResponseRedirect(default_url)
+
         # Warn message if prescriber's authorization is pending
         if (
             request.user.is_prescriber
@@ -902,7 +933,6 @@ class ApplicationJobsView(ApplicationBaseView):
 
     def __init__(self):
         super().__init__()
-
         self.form = None
 
     def get_initial(self):