Merge pull request #3916 from nhsuk/personalisation-vaccine-method

Add `vaccine_is_injection` and `vaccine_is_nasal`

Author: thomasleese

app/lib/govuk_notify_personalisation.rb

@@ -2,8 +2,8 @@
 
 class GovukNotifyPersonalisation
   include Rails.application.routes.url_helpers
-  include PhoneHelper
 
+  include PhoneHelper
   include VaccinationRecordsHelper
 
   def initialize(
@@ -66,6 +66,8 @@ def to_h
       team_phone:,
       today_or_date_of_vaccination:,
       vaccination:,
+      vaccine_is_injection:,
+      vaccine_is_nasal:,
       vaccine_side_effects:
     }.compact
   end
@@ -288,6 +290,30 @@ def vaccination
     ].join(" ")
   end
 
+  def vaccine_is_injection = vaccine_is?("injection")
+
+  def vaccine_is_nasal = vaccine_is?("nasal")
+
+  def vaccine_is?(method)
+    if vaccination_record
+      vaccination_record.vaccine&.method == method ? "yes" : "no"
+    elsif programmes.present?
+      any_vaccines_with_method =
+        if patient
+          programmes.any? do |programme|
+            # We pick the first method as it's the one most likely to be used
+            # to vaccinate the patient. For example, in the case of Flu, the
+            # parents will approve nasal (and then optionally injection).
+            patient.approved_vaccine_methods(programme:).first == method
+          end
+        else
+          Vaccine.where(programme: programmes, method:).exists?
+        end
+
+      any_vaccines_with_method ? "yes" : "no"
+    end
+  end
+
   def vaccine_side_effects
     side_effects =
       if vaccination_record
@@ -299,7 +325,6 @@ def vaccine_side_effects
             # to vaccinate the patient. For example, in the case of Flu, the
             # parents will approve nasal (and then optionally injection).
             method = patient.approved_vaccine_methods(programme:).first
-
             Vaccine.where(programme:, method:).flat_map(&:side_effects)
           end
         else

spec/lib/govuk_notify_personalisation_spec.rb

@@ -74,6 +74,8 @@
         team_name: "Organisation",
         team_phone: "01234 567890 (option 1)",
         vaccination: "HPV vaccination",
+        vaccine_is_injection: "no",
+        vaccine_is_nasal: "no",
         vaccine_side_effects: ""
       }
     )
@@ -243,6 +245,64 @@
     end
   end
 
+  context "with vaccine methods" do
+    context "and an injection-only programme" do
+      before do
+        create(
+          :patient_consent_status,
+          :given,
+          patient:,
+          programme: programmes.first
+        )
+      end
+
+      it { should include(vaccine_is_injection: "yes", vaccine_is_nasal: "no") }
+    end
+
+    context "and a nasal spray programme" do
+      let(:programmes) { [create(:programme, :flu)] }
+
+      before do
+        create(
+          :patient_consent_status,
+          :given,
+          patient:,
+          programme: programmes.first,
+          vaccine_methods: %w[nasal injection]
+        )
+      end
+
+      it { should include(vaccine_is_injection: "no", vaccine_is_nasal: "yes") }
+    end
+
+    context "and multiple programmes" do
+      let(:programmes) { [create(:programme, :hpv), create(:programme, :flu)] }
+
+      before do
+        create(
+          :patient_consent_status,
+          :given,
+          patient:,
+          programme: programmes.first,
+          vaccine_methods: %w[nasal injection]
+        )
+        create(
+          :patient_consent_status,
+          :given,
+          patient:,
+          programme: programmes.second
+        )
+      end
+
+      it do
+        expect(to_h).to include(
+          vaccine_is_injection: "yes",
+          vaccine_is_nasal: "yes"
+        )
+      end
+    end
+  end
+
   context "with vaccine side effects" do
     before do
       programmes.first.vaccines.first.update!(side_effects: %w[swelling unwell])