Hide "Get a new consent response" button

This ensures that the button is hidden if no consent response is needed
for this patient to prevent nurses from accidentally recording a consent
response when not needed.

Specifically this prevents a scenario that was found to be possible in
testing, but wouldn't occur in reality where a patient already had
consent from a parent and then the nurse could request consent from
another parent which changed the status from consent given to consent
conflicting.

Jira-Issue: MAV-1591

Author: thomasleese

app/components/app_patient_session_consent_component.html.erb

@@ -28,11 +28,13 @@
                             secondary: true %>
       <% end %>
 
-      <%= govuk_button_to "Record a new consent response",
-                          session_patient_programme_consents_path(
-                            session, patient, programme
-                          ),
-                          secondary: true %>
+      <% if can_record_new_response? %>
+        <%= govuk_button_to "Record a new consent response",
+                            session_patient_programme_consents_path(
+                              session, patient, programme
+                            ),
+                            secondary: true %>
+      <% end %>
     </div>
 
     <%= render AppGillickAssessmentComponent.new(patient_session:, programme:) %>

app/components/app_patient_session_consent_component.rb

@@ -41,6 +41,14 @@ def consents
         .order(created_at: :desc)
   end
 
+  def gillick_assessment
+    @gillick_assessment ||=
+      patient_session
+        .gillick_assessments
+        .order(created_at: :desc)
+        .find_by(programme:)
+  end
+
   def consent_status
     @consent_status ||= patient.consent_status(programme:)
   end
@@ -54,6 +62,10 @@ def can_send_consent_request?
       session.open_for_consent? && patient.parents.any?
   end
 
+  def can_record_new_response?
+    !consent_status.given? || gillick_assessment&.gillick_competent?
+  end
+
   def grouped_consents
     @grouped_consents ||= ConsentGrouper.call(consents, programme:)
   end

spec/components/app_patient_session_consent_component_spec.rb

@@ -58,5 +58,12 @@
 
     it { should have_css(".app-card--aqua-green", text: "Consent given") }
     it { should_not have_css("a", text: "Contact #{consent.parent.full_name}") }
+    it { should_not have_css("button", text: "Record a new consent response") }
+
+    context "when patient is Gillick competent" do
+      before { create(:gillick_assessment, :competent, patient_session:) }
+
+      it { should have_css("button", text: "Record a new consent response") }
+    end
   end
 end