Add toggle for environment banner (#203)

Author: edwardhorsford

app/data/session-data-defaults.js

@@ -61,6 +61,7 @@ try {
 
 const defaultSettings = {
   darkMode: 'false',
+  showEnvironmentBanner: 'true',
   screening: {
     confirmIdentityOnCheckIn: 'true',
     manualImageCollection: 'true',

app/views/_templates/layout-base.html

@@ -16,7 +16,7 @@
 {% endblock %}
 
 {% block header %}
-  {{ appEnvironment(environment) if environment }}
+  {{ appEnvironment(environment) if environment and data.settings.showEnvironmentBanner == 'true' }}
   {% set useMinimalNav = useMinimalNav | default(false) %}
 
   {% set rootHref = "/" %}

app/views/settings.html

@@ -46,6 +46,10 @@ <h2>General</h2>
       <a class="nhsuk-link--no-visited-state" href="./settings?settings[darkMode]={{'true' if data.settings.darkMode !== 'true' else 'false'}}&clearQuery=true">{{ 'Enable' if data.settings.darkMode=='false' else 'Disable'}} dark mode</a>
     </p>
 
+    <p>
+      <a class="nhsuk-link--no-visited-state" href="./settings?settings[showEnvironmentBanner]={{'true' if data.settings.showEnvironmentBanner !== 'true' else 'false'}}&clearQuery=true">{{ 'Show' if data.settings.showEnvironmentBanner=='false' else 'Hide'}} environment banner</a>
+    </p>
+
     <h2>Screening</h2>
     {# Confirm identity on check-in #}
     <p>