Automate counting of live services and orgs

Returns the data calculated by the API. Stored in Redis against a
hardcoded key so that no-one hammering the home page is directly hitting
the database.

app/main/views/index.py

@@ -12,7 +12,7 @@ from notifications_utils.international_billing_rates import (
 )
 from notifications_utils.template import HTMLEmailTemplate, LetterImageTemplate
 
-from app import email_branding_client, letter_branding_client
+from app import email_branding_client, letter_branding_client, status_api_client
 from app.main import main
 from app.main.forms import FieldWithNoneOption, SearchByNameForm
 from app.main.views.sub_navigation_dictionaries import features_nav
@@ -21,9 +21,14 @@ from app.utils import AgreementInfo, get_logo_cdn_domain
 
 @main.route('/')
 def index():
+
     if current_user and current_user.is_authenticated:
         return redirect(url_for('main.choose_account'))
-    return render_template('views/signedout.html')
+
+    return render_template(
+        'views/signedout.html',
+        counts=status_api_client.get_count_of_live_services_and_organisations(),
+    )
 
 
 @main.route('/robots.txt')

app/main/views/service_settings.py

@@ -262,12 +262,7 @@ def service_switch_live(service_id):
     )
 
     if form.validate_on_submit():
-        current_service.update(
-            # TODO This limit should be set depending on the agreement signed by
-            # with Notify.
-            message_limit=250000 if form.enabled.data else 50,
-            restricted=(not form.enabled.data)
-        )
+        current_service.update_status(live=form.enabled.data)
         return redirect(url_for('.service_settings', service_id=service_id))
 
     return render_template(