Add London flu service as a separate vaccine type (#412)

As an alternative to #395, this adds the London flu service eligibility
options by creating a separate vaccine type instead.

This would be technically simpler to develop, but would have the
downside of requiring pharmacies to double enter all their flu vaccine
batch numbers and expiry dates, as they use the same physical vaccines
for both the National and London flu campaigns.

## Screenshots


|  | Before | After |
|--|--------|-------|
| Adding batch | <img width="511" height="282" alt="Screenshot
2025-07-21 at 12 06 02"
src="https://github.com/user-attachments/assets/3ead6862-7491-48f8-bc2c-e40b6d0aea5f"
/> | <img width="604" height="336" alt="Screenshot 2025-07-22 at 11 49
42"
src="https://github.com/user-attachments/assets/9d537b8f-0803-4180-bab3-2d65ecb74212"
/> |
| Selecting vaccine when recording | <img width="707" height="474"
alt="Screenshot 2025-07-21 at 12 04 56"
src="https://github.com/user-attachments/assets/519747cd-27c3-44cd-9ee6-74587785babf"
/> | <img width="634" height="517" alt="Screenshot 2025-07-22 at 12 01
11"
src="https://github.com/user-attachments/assets/dac27146-4cc6-4235-aba3-1245b49edbd4"
/> |
| Eligibility | <img width="755" height="1101" alt="Screenshot
2025-07-21 at 12 06 54"
src="https://github.com/user-attachments/assets/32135198-735d-4550-8540-536e318e3766"
/> | <img width="620" height="621" alt="Screenshot 2025-07-21 at 12 07
21"
src="https://github.com/user-attachments/assets/fbace5c9-28ec-4441-9695-381beead8b08"
/> or <img width="633" height="762" alt="Screenshot 2025-07-21 at 12 07
40"
src="https://github.com/user-attachments/assets/d8dc87c8-760e-4765-97c2-19e4d9a8784f"
/> |

Author: frankieroberto

app/data/organisations.js

@@ -944,7 +944,8 @@ module.exports = [
       {name: "RSV", status: "disabled"},
       {name: "COVID-19", status: "enabled"},
       {name: "pertussis", status: "disabled"},
-      {name: "flu", status: "enabled"}
+      {name: "flu", status: "enabled"},
+      {name: "flu (London service)", status: "enabled"}
     ],
     sites: [
       {

app/data/vaccines.js

@@ -39,6 +39,29 @@ module.exports = [
       }
     ]
   },
+  {
+    name: "flu (London service)",
+    products: [
+      {
+        name: "Adjuvanted Quadrivalent Influenza Vaccine (aQIV)"
+      },
+      {
+        name: "Cell-based Quadrivalent Influenza Vaccine (QIVc)"
+      },
+      {
+        name: "Fluenz (LAIV)"
+      },
+      {
+        name: "Influenza Tetra MYL (QIVe)"
+      },
+      {
+        name: "Quadrivalent Influenza Vaccine (QIVe)"
+      },
+      {
+        name: "Quadrivalent Influenza Vaccine - High Dose (QIV-HD)"
+      }
+    ]
+  },
   {
     name: "pertussis",
     products: [

app/routes/record-vaccinations.js

@@ -777,7 +777,7 @@ module.exports = router => {
       redirectPath = "/record-vaccinations/add-batch"
     } else if (!vaccineBatch) {
       redirectPath = "/record-vaccinations/batch?showError=yes"
-    } else if (["COVID-19", "flu", "RSV", "pneumococcal"].includes(data.vaccine)) {
+    } else if (["COVID-19", "flu", "flu (London service)", "RSV", "pneumococcal"].includes(data.vaccine)) {
       redirectPath = "/record-vaccinations/eligibility"
     } else if (data.repeatPatient === "yes") {
       redirectPath = "/record-vaccinations/patient-estimated-due-date"

app/routes/vaccines.js

@@ -49,14 +49,14 @@ module.exports = (router) => {
 
     const organisationVaccines = res.locals.currentOrganisation.vaccines || []
 
-    const vaccinesEnabled = organisationVaccines
+    const vaccinesEnabledNames = organisationVaccines
       .filter((vaccine) => vaccine.status === "enabled")
-
-    const vaccinesEnabledNames = vaccinesEnabled
       .map((vaccine) => vaccine.name)
 
     const allVaccines = data.vaccines
 
+    const vaccinesEnabled = allVaccines.filter((vaccine) => vaccinesEnabledNames.includes(vaccine.name))
+
     const vaccinesDisabled = allVaccines.filter((vaccine) => !vaccinesEnabledNames.includes(vaccine.name))
 
     res.render('vaccines/choose-vaccine', {

app/views/record-vaccinations/eligibility.html

@@ -76,6 +76,8 @@
           {% set eligibilityOptions = CovidEligibilityOptions %}
         {% elif data.vaccine == "flu" %}
           {% set eligibilityOptions = NationalFluEligibilityOptions %}
+        {% elif data.vaccine == "flu (London service)" %}
+          {% set eligibilityOptions = londonFluEligibilityOptions %}
         {% elif data.vaccine == "RSV" %}
           {% set eligibilityOptions = RSVEligibilityOptions %}
         {% elif data.vaccine == "pneumococcal" %}
@@ -100,39 +102,6 @@
           }
         }) %}
 
-          {% if data.vaccine == "flu" %}
-
-            {% set londonFluItems = [] %}
-            {% for option in londonFluEligibilityOptions %}
-              {% set londonFluItems = (londonFluItems.push({
-                text: option,
-                value: option
-                }), londonFluItems) %}
-            {% endfor %}
-
-            {% set londonFluHtml %}
-              {{ radios({
-                idPrefix: "eligibility-2",
-                name: "eligibility",
-                items: londonFluItems,
-                value: data.eligibility
-              }) }}
-            {% endset %}
-
-            {% set items = (items.push({
-              divider: "or"
-            }), items) %}
-
-            {% set items = (items.push({
-              text: "London flu service",
-              value: "london-flu",
-              conditional: {
-                html: londonFluHtml
-              }
-            }), items) %}
-
-          {% endif %}
-
           {% if data.vaccine == "pneumococcal" %}
             <h2 class="nhsuk-u-font-size-19 nhsuk-u-margin-bottom-2 nhsuk-u-margin-top-3 nhsuk-u-font-weight-normal">Aged 65 and over</h2>
           {% endif %}