Sum up usage for an whole organisation

We invoice on a per organisation basis, so it’s useful to know the per
organisation figures without needing to do any spreadsheet-fu.

app/main/views/organisations.py

@@ -125,10 +125,14 @@ def add_organisation_from_nhs_local_service(service_id):
 @main.route("/organisations/<uuid:org_id>", methods=['GET'])
 @user_has_permissions()
 def organisation_dashboard(org_id):
-    services = current_organisation.services_and_usage()
+    services = current_organisation.services_and_usage()['services']
     return render_template(
         'views/organisations/organisation/index.html',
-        services=services
+        services=services,
+        **{
+            f'total_{key}': sum(service[key] for service in services)
+            for key in ('emails_sent', 'sms_cost', 'letter_cost')
+        }
     )
 
 

app/templates/views/organisations/organisation/index.html

@@ -11,8 +11,34 @@
     Usage
   </h1>
 
+  <div class="grid-row">
+    <div class="column-one-third">
+      {{ big_number(
+        total_emails_sent,
+        label='emails sent',
+        smaller=True
+      ) }}
+    </div>
+    <div class="column-one-third">
+      {{ big_number(
+        total_sms_cost,
+        'spent on text messages',
+        currency="£",
+        smaller=True
+      ) }}
+    </div>
+    <div class="column-one-third">
+      {{ big_number(
+        total_letter_cost,
+        'spent on letters',
+        currency="£",
+        smaller=True
+      ) }}
+    </div>
+  </div>
+
   <ul>
-  {% for service in services['services'] %}
+  {% for service in services %}
     <li class="browse-list-item">
       <a href="{{ url_for('main.usage', service_id=service.service_id) }}" class="govuk-link govuk-link--no-visited-state browse-list-link">{{ service.service_name  }}</a>
     </li>