Ensure PSD supplier is attached to vaccination record

When recording a vaccination record under the PSD protocol, we need to
attached the person who supplied the vaccine (i.e. who created the PSD)
to the vaccination record.

This also ensures that these details are included in any reports.

Author: thomasleese

app/forms/vaccinate_form.rb

@@ -152,7 +152,8 @@ def save(draft_vaccination_record:)
     draft_vaccination_record.programme = programme
     draft_vaccination_record.protocol = protocol
     draft_vaccination_record.session_id = session.id
-    draft_vaccination_record.supplied_by_user_id = supplied_by_user_id
+    draft_vaccination_record.supplied_by_user_id =
+      supplied_by_user_id || psd_created_by_user_id
 
     draft_vaccination_record.save # rubocop:disable Rails/SaveBang
   end
@@ -165,6 +166,21 @@ def administered? = vaccine_method != "none"
 
   def supplied_by_user_id_values = supplied_by_users.pluck(:id)
 
+  def psd_created_by_user_id
+    if healthcare_assistant_using_psd?
+      patient
+        .patient_specific_directions
+        .order(created_at: :desc)
+        .find_by(
+          academic_year:,
+          programme:,
+          team: current_user.selected_team,
+          vaccine_method:
+        )
+        &.created_by_user_id
+    end
+  end
+
   def vaccine_method_options
     programme.vaccine_methods + ["none"]
   end

config/locales/en.yml

@@ -262,6 +262,7 @@ en:
         protocols:
           national: National protocol
           pgd: Patient Group Direction (PGD)
+          psd: Patient Specific Direction
         sync_statuses:
           cannot_sync: Cannot sync
           not_synced: Not synced

spec/features/flu_vaccination_hca_psd_spec.rb

@@ -89,7 +89,7 @@ def given_a_flu_session_exists(user_type:, national_protocol_enabled: false)
     @programme = create(:programme, :flu)
     @programmes = [@programme]
     @team = create(:team, user_type, programmes: @programmes)
-    @nurse = create(:nurse, team: @team)
+    @user = create(:nurse, team: @team)
 
     @batch =
       create(
@@ -224,6 +224,10 @@ def then_i_am_able_to_vaccinate_them_with_nasal_via_psd
 
     choose @batch.name
     click_button "Continue"
+
+    expect(page).to have_content("ProtocolPatient Specific Direction")
+    expect(page).to have_content("Supplier#{@user.full_name}")
+
     click_on "Confirm"
 
     expect(page).to have_text("Vaccination outcome recorded for flu")