Warnign message (#158)

This adds a example warning message if the COVID-19 interval hasn't been
reached:

![Screenshot 2025-01-10 at 16 13
17](https://github.com/user-attachments/assets/f7197d45-2b37-4f15-8302-b09d147c1f5e)

---------

Co-authored-by: Frankie Roberto <[email protected]>
Co-authored-by: Frankie Roberto <[email protected]>

Author: johnrimmer2

app/views/vaccinate/consent.html

@@ -7,7 +7,12 @@
 {% set currentSection = "consent" %}
 
 {% block beforeContent %}
-  {{ backLink({ href: "/vaccinate/patient-history" }) }}
+  {% if data.vaccine === "COVID-19" %}
+    {% set backLinkHref = "/vaccinate/warning" %}
+  {% else %}
+    {% set backLinkHref = "/vaccinate/patient-history" %}
+  {% endif %}
+  {{ backLink({ href: backLinkHref }) }}
 {% endblock %}
 
 {% block content %}

app/views/vaccinate/patient-history.html

@@ -6,7 +6,9 @@
 
 {% set currentSection = "vaccinate" %}
 
-{% if (data.eligibility | arrayOrStringIncludes("Pregnant")) or (data.vaccine == "Pertussis") %}
+{% if (data.vaccine === "COVID-19") %}
+  {% set nextPage = "/vaccinate/warning" %}
+{% elseif (data.eligibility | arrayOrStringIncludes("Pregnant")) or (data.vaccine == "Pertussis") %}
   {% set nextPage = "/vaccinate/patient-estimated-due-date" %}
 {% else %}
   {% set nextPage = "/vaccinate/consent" %}

app/views/vaccinate/warning.html

@@ -0,0 +1,37 @@
+{% extends 'layout.html' %}
+
+{% block pageTitle %}
+  Vaccines
+{% endblock %}
+
+{% set currentSection = "vaccinate" %}
+
+{% block beforeContent %}
+  {{ backLink({ href: "/vaccinate/patient-history" }) }}
+{% endblock %}
+
+{% block content %}
+  <div class="nhsuk-grid-row">
+    <div class="nhsuk-grid-column-two-thirds">
+
+      <h1 class="nhsuk-heading-l">Are you sure you want to give the vaccine?</h1>
+
+      <p>
+        {{ data.patientName }} had a COVID-19 vaccine less than 3 months ago, on 1&nbsp;December 2024.
+      </p>
+
+      <p>
+        For most people, the minimum recommended gap between COVID-19 vaccine doses is 3 months. See the section ‘Doses and schedules’ in the <a href="https://www.gov.uk/government/publications/covid-19-vaccination-programme-guidance[…]-vaccination-programme-information-for-healthcare-practitioners" target="_blank">
+UKHSA guidance on COVID-19 vaccination (opens in new tab)</a>.
+      </p>
+
+    </div>
+  </div>
+
+  {{ button({
+    "text": "Continue",
+    "href": "/vaccinate/consent"
+  }) }}
+
+{% endblock %}
+