bugfix metricprovider

app/Libs/Metrics/MyMetricProvider.php

@@ -86,19 +86,19 @@ class MyMetricProvider implements ProviderInterface
                     foreach ($mailboxes as $mailboxe) {
                         switch($mailboxe['consumedSize']['units']) {
                             case 'Bytes' :
-                                $usage = $mailboxe['consumedSize']['value']/1024/1024;
+                                $consumed = $mailboxe['consumedSize']['value']/1024/1024;
                                 break;
                             case 'KiloBytes' :
-                                $usage = $mailboxe['consumedSize']['value']/1024;
+                                $consumed = $mailboxe['consumedSize']['value']/1024;
                                 break;
                             case 'MegaBytes' :
-                                $usage = $mailboxe['consumedSize']['value'];
+                                $consumed = $mailboxe['consumedSize']['value'];
                                 break;
                             case 'GigaBytes' :
-                                $usage = $mailboxe['consumedSize']['value']*1024;
+                                $consumed = $mailboxe['consumedSize']['value']*1024;
                                 break;
                         }
-                        $totalUsage += $usage;
+                        $totalUsage += $consumed;
                     }
                 }
                $storage = $totalUsage == 0 ? 0 : round($totalUsage);