Add a special page showing the latest laser usage

apiserver/apiserver/api/serializers.py

@@ -16,10 +16,15 @@ import datetime, time
 from . import models, fields, utils, utils_ldap, utils_auth, utils_stats
 from .. import settings, secrets
 
-#class UsageSerializer(serializers.ModelSerializer):
-#    class Meta:
-#        model = models.UsageTrack
-#        fields = '__all__'
+class UsageSerializer(serializers.ModelSerializer):
+    first_name = serializers.SerializerMethodField()
+
+    class Meta:
+        model = models.Usage
+        fields = '__all__'
+
+    def get_first_name(self, obj):
+        return obj.user.member.preferred_name
 
 class TransactionSerializer(serializers.ModelSerializer):
     # fields directly from old portal. replace with slugs we want

apiserver/apiserver/api/views.py

@@ -683,6 +683,33 @@ class StatsViewSet(viewsets.ViewSet, List):
 
         return Response(200)
 
+    @action(detail=False, methods=['get'])
+    def usage_data(self, request):
+        if 'device' not in request.query_params:
+            raise exceptions.ValidationError(dict(device='This field is required.'))
+
+        if not utils.is_request_from_protospace(request):
+            raise exceptions.PermissionDenied()
+
+        device = request.query_params['device']
+        last_session = models.Usage.objects.filter(device=device).last()
+
+        if not last_session:
+            raise exceptions.ValidationError(dict(device='Session not found.'))
+
+        serializer = serializers.UsageSerializer(last_session)
+
+        try:
+            track = cache.get('track', {})[device]
+        except KeyError:
+            track = False
+
+        return Response(dict(
+            track=track,
+            session=serializer.data
+        ))
+
+
     @action(detail=False, methods=['post'])
     def autoscan(self, request):
         if 'autoscan' not in request.data: