Set careplus dose number to 1B for second dose MMR vaccinations

Author: jf-x-dev

app/lib/reports/careplus_exporter.rb

@@ -1,6 +1,8 @@
 # frozen_string_literal: true
 
 class Reports::CareplusExporter
+  MMR_DOSE_CODES = { 1 => "1P", 2 => "1B" }.freeze
+
   def initialize(team:, programme:, academic_year:, start_date:, end_date:)
     @team = team
     @programme = programme
@@ -167,7 +169,7 @@ def vaccine_fields(vaccination_records, index)
     [
       record.vaccine.snomed_product_code, # Vaccine X
       vaccine_code(record), # Code X field
-      record.dose_sequence.present? ? "#{record.dose_sequence}P" : "", # Dose X field
+      dose_field(record), # Dose X field
       "", # Reason Not Given X
       coded_site(record.delivery_site), # Site X; Coded value
       record.vaccine.manufacturer, # Manufacturer X
@@ -216,6 +218,18 @@ def coded_site(site)
     }.fetch(site.to_sym)
   end
 
+  def dose_field(record)
+    return "" if record.dose_sequence.blank?
+
+    if record.programme.mmr?
+      MMR_DOSE_CODES.fetch(record.dose_sequence) do
+        raise "Unexpected MMR dose sequence: #{record.dose_sequence}"
+      end
+    else
+      "#{record.dose_sequence}P"
+    end
+  end
+
   def vaccine_code(vaccination_record)
     programme = vaccination_record.programme
 

spec/lib/reports/careplus_exporter_spec.rb

@@ -15,6 +15,10 @@
 
   let(:academic_year) { AcademicYear.current }
 
+  let(:parsed_csv) { CSV.parse(csv) }
+  let(:headers) { parsed_csv.first }
+  let(:data_rows) { parsed_csv[1..] }
+
   shared_examples "generates a report" do
     let(:programmes) { [programme] }
     let(:team) do
@@ -34,9 +38,6 @@
       )
     end
     let(:session) { create(:session, team:, programmes:, location:) }
-    let(:parsed_csv) { CSV.parse(csv) }
-    let(:headers) { parsed_csv.first }
-    let(:data_rows) { parsed_csv[1..] }
 
     it "includes the expected headers" do
       expect(headers).to include(
@@ -378,6 +379,25 @@
 
       include_examples "generates a report"
     end
+
+    context "with a second dose vaccination record" do
+      let(:team) { create(:team, programmes: [programme]) }
+      let(:session) { create(:session, team:, programmes: [programme]) }
+
+      it "outputs 1B for the dose field" do
+        patient = create(:patient, session:)
+        create(
+          :vaccination_record,
+          programme:,
+          vaccine: Vaccine.find_by!(brand: "Priorix"),
+          patient:,
+          session:,
+          dose_sequence: 2
+        )
+
+        expect(data_rows.first[headers.index("Dose 1")]).to eq("1B")
+      end
+    end
   end
 
   context "Td/IPV programme" do