Only show the filters if they will have an effect

If you never create any API keys we shouldn’t give you the option to see
API-related events – it will only confuse things.

And since there’s (currently) only one type of event left once you take
API key events out of the picture it doesn’t make sense to show the
filters at all.

app/main/views/history.py

@@ -4,17 +4,21 @@ from flask import render_template, request
 
 from app import current_service, format_date_numeric
 from app.main import main
-from app.models.event import APIKeyEvents, ServiceEvents
+from app.models.event import APIKeyEvent, APIKeyEvents, ServiceEvents
 from app.utils import user_has_permissions
 
 
 @main.route("/services/<service_id>/history")
 @user_has_permissions('manage_service')
 def history(service_id):
+
+    events = _get_events(current_service.id, request.args.get('selected'))
+
     return render_template(
         'views/temp-history.html',
-        days=_chunk_events_by_day(
-            _get_events(current_service.id, request.args.get('selected'))
+        days=_chunk_events_by_day(events),
+        show_navigation=request.args.get('selected') or any(
+            isinstance(event, APIKeyEvent) for event in events
         )
     )
 

app/templates/views/temp-history.html

@@ -11,15 +11,19 @@
 
   {{ page_header("Audit events") }}
 
-  {{ pill(
-    [
-      ('All', None, url_for('main.history', service_id=current_service.id), None),
-      ('Service', 'service', url_for('main.history', service_id=current_service.id, selected='service'), None),
-      ('API keys', 'api', url_for('main.history', service_id=current_service.id, selected='api'), None),
-    ],
-    request.args.get('selected'),
-    show_count=False
-  ) }}
+  {% if show_navigation %}
+    <div class="bottom-gutter">
+      {{ pill(
+        [
+          ('All', None, url_for('main.history', service_id=current_service.id), None),
+          ('Service settings', 'service', url_for('main.history', service_id=current_service.id, selected='service'), None),
+          ('API keys', 'api', url_for('main.history', service_id=current_service.id, selected='api'), None),
+        ],
+        request.args.get('selected'),
+        show_count=False
+      ) }}
+    </div>
+  {% endif %}
 
   {% for day, events in days %}
     <h2 class="heading-small top-gutter">