rename benutzer to users

add role management to media page

dashboard/src/media.tsx

@@ -1,4 +1,4 @@
-import React, { useState, useRef } from 'react';
+import React, { useState, useRef, useMemo } from 'react';
 import CustomMediaInfoPanel from './components/CustomMediaInfoPanel';
 import {
   FileManagerComponent,
@@ -7,10 +7,13 @@ import {
   DetailsView,
   Toolbar,
 } from '@syncfusion/ej2-react-filemanager';
+import { useAuth } from './useAuth';
 
 const hostUrl = '/api/eventmedia/filemanager/'; // Dein Backend-Endpunkt für FileManager
 
 const Media: React.FC = () => {
+  const { user } = useAuth();
+  const isSuperadmin = useMemo(() => user?.role === 'superadmin', [user]);
   // State für die angezeigten Dateidetails
   const [fileDetails] = useState<null | {
     name: string;
@@ -43,6 +46,25 @@ const Media: React.FC = () => {
     }
   }, [viewMode]);
 
+  type FileItem = { name: string; isFile: boolean };
+  type ReadSuccessArgs = { action: string; result?: { files?: FileItem[] } };
+  type FileOpenArgs = { fileDetails?: FileItem; cancel?: boolean };
+
+  // Hide "converted" for non-superadmins after data load
+  const handleSuccess = (args: ReadSuccessArgs) => {
+    if (isSuperadmin) return;
+    if (args && args.action === 'read' && args.result && Array.isArray(args.result.files)) {
+      args.result.files = args.result.files.filter((f: FileItem) => !(f.name === 'converted' && !f.isFile));
+    }
+  };
+
+  // Prevent opening the "converted" folder for non-superadmins
+  const handleFileOpen = (args: FileOpenArgs) => {
+    if (!isSuperadmin && args && args.fileDetails && args.fileDetails.name === 'converted' && !args.fileDetails.isFile) {
+      args.cancel = true;
+    }
+  };
+
   return (
     <div>
       <h2 className="text-xl font-bold mb-4">Medien</h2>
@@ -65,6 +87,9 @@ const Media: React.FC = () => {
       {/* Debug-Ausgabe entfernt, da ReactNode erwartet wird */}
       <FileManagerComponent
         ref={fileManagerRef}
+        cssClass="e-bigger media-icons-xl"
+        success={handleSuccess}
+        fileOpen={handleFileOpen}
         ajaxSettings={{
           url: hostUrl + 'operations',
           getImageUrl: hostUrl + 'get-image',