Allow HCA's to use PGD supply with PSD and national protocols enabled

If the PSD and national protocol are enabled, but the patient only has
consent for the nasal spray, in which case we would need to ensure that
this box further up on the page shows.

Author: jhenderson

app/forms/vaccinate_form.rb

@@ -74,7 +74,8 @@ def delivery_site
   end
 
   def protocol
-    if nurse_using_pgd? || healthcare_assistant_using_pgd?
+    if nurse_using_pgd? || healthcare_assistant_using_pgd? ||
+         healthcare_assistant_psd_and_national_nasal_only_without_psd?
       "pgd"
     elsif healthcare_assistant_using_psd?
       "psd"
@@ -99,17 +100,30 @@ def healthcare_assistant_using_psd?
 
   def requires_supplied_by_user_id?
     return false if healthcare_assistant_using_psd?
+    return true if healthcare_assistant_psd_and_national_nasal_only_without_psd?
 
     user_not_designated_as_supplier?
   end
 
+  def healthcare_assistant_psd_and_national_nasal_only_without_psd?
+    healthcare_assistant_using_psd_and_national_protocol? && !psd_exists? &&
+      consented_for_nasal_only?
+  end
+
   def psd_exists?
     patient.patient_specific_directions.any? do
       it.programme_id == programme.id &&
         it.academic_year == session.academic_year
     end
   end
 
+  def consented_for_nasal_only?
+    patient.consent_status(
+      programme:,
+      academic_year: session.academic_year
+    ).vaccine_methods == ["nasal"]
+  end
+
   def healthcare_assistant_using_psd_and_national_protocol?
     current_user.is_healthcare_assistant? && session.psd_enabled? &&
       session.national_protocol_enabled?

spec/features/flu_vaccination_hca_psd_spec.rb

@@ -65,18 +65,32 @@
     and_i_am_signed_in(role: :healthcare_assistant)
 
     when_i_visit_the_session_patient_programme_page
-    and_i_record_that_the_patient_has_been_vaccinated_with_nasal_spray
+    then_i_am_able_to_vaccinate_them_with_nasal_via_psd
     and_the_vaccination_record_has_psd_as_the_protocol
   end
 
+  scenario "PSD and national protocol enabled, no PSD, but patient consented nasal spray" do
+    given_a_flu_session_exists(
+      user_type: :with_one_healthcare_assistant,
+      national_protocol_enabled: true
+    )
+    and_patients_exist
+    and_i_am_signed_in(role: :healthcare_assistant)
+
+    when_i_visit_the_session_patient_programme_page
+    then_i_am_able_to_vaccinate_them_via_pgd
+    and_the_vaccination_record_has_pdg_as_the_protocol
+  end
+
   def given_delegation_feature_flag_is_enabled
     Flipper.enable(:delegation)
   end
 
-  def given_a_flu_session_exists(user_type:)
+  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)
 
     @batch =
       create(
@@ -93,7 +107,8 @@ def given_a_flu_session_exists(user_type:)
         :requires_no_registration,
         :psd_enabled,
         team: @team,
-        programmes: @programmes
+        programmes: @programmes,
+        national_protocol_enabled:
       )
   end
 
@@ -197,7 +212,7 @@ def then_i_should_not_see_the_record_vaccination_section
     expect(page).not_to have_text("Record flu vaccination with injection")
   end
 
-  def and_i_record_that_the_patient_has_been_vaccinated_with_nasal_spray
+  def then_i_am_able_to_vaccinate_them_with_nasal_via_psd
     within all("section")[0] do
       check "I have checked that the above statements are true"
     end
@@ -214,7 +229,27 @@ def and_i_record_that_the_patient_has_been_vaccinated_with_nasal_spray
     expect(page).to have_text("Vaccination outcome recorded for flu")
   end
 
+  def then_i_am_able_to_vaccinate_them_via_pgd
+    check "I have checked that the above statements are true"
+
+    select @nurse.full_name
+    within all("section")[1] do
+      choose "Yes"
+    end
+    click_on "Continue"
+
+    choose @batch.name
+    click_on "Continue"
+
+    click_on "Confirm"
+    click_on "Record vaccinations"
+  end
+
   def and_the_vaccination_record_has_psd_as_the_protocol
     expect(@patient_nasal_only.vaccination_records.first.protocol).to eq("psd")
   end
+
+  def and_the_vaccination_record_has_pdg_as_the_protocol
+    expect(@patient_nasal_only.vaccination_records.first.protocol).to eq("pgd")
+  end
 end