History: wiederhergestellte Version anzeigen, Lösch-Bestätigung, Admin-Stats Codes

backend/src/routes/admin.js

@@ -41,12 +41,13 @@ router.get('/users', authenticate, requireAdmin, (req, res) => {
   const stats = users.map(u => {
     const archiv     = db.prepare('SELECT COUNT(*) c FROM calculations WHERE user_id=?').get(u.id).c;
     const bestellung = db.prepare('SELECT COUNT(*) c FROM orders WHERE user_id=?').get(u.id).c;
+    const snippets_c = db.prepare('SELECT COUNT(*) c FROM snippets WHERE user_id=?').get(u.id).c;
     const todos      = db.prepare('SELECT COUNT(*) c FROM todos WHERE user_id=?').get(u.id).c;
     const links      = db.prepare('SELECT COUNT(*) c FROM quick_links WHERE user_id=?').get(u.id).c;
     const files      = db.prepare('SELECT COUNT(*) c FROM files WHERE user_id=?').get(u.id).c;
     const noteLen    = (db.prepare('SELECT content FROM notes WHERE user_id=?').get(u.id)?.content || '').length;
     const icals      = db.prepare('SELECT COUNT(*) c FROM calendar_feeds WHERE user_id=?').get(u.id).c;
-    return { ...u, archiv, bestellung, todos, links, files, icals, noteLen };
+    return { ...u, archiv, bestellung, snippets_c, todos, links, files, icals, noteLen };
   });
   res.json(stats);
 });

frontend/src/App.jsx

@@ -1887,6 +1887,7 @@ function UserManagement({ toast }) {
               {[
                 ['◈ Archiv', u.archiv],
                 ['📦 Bestellungen', u.bestellung],
+                ['</> Codes', u.snippets_c],
                 ['✓ Todos', u.todos],
                 ['🔗 Links', u.links],
                 ['📁 Dateien', u.files],

frontend/src/tools/codeschnipsel.jsx

@@ -148,23 +148,25 @@ function HistoryModal({ snippet, onClose, onRestore, toast }) {
   useEffect(()=>{ load(); },[]);
 
   // Entries: [current, ...history] where index 0 = current
-  // entries[i].code, entries[i].label
   const entries = [
     { id:'current', code: snippet.code, language: snippet.language,
       saved_at: snippet.updated_at, label:'Aktuell', isCurrent: true },
     ...history.map((h,i) => ({ ...h, label:`v${history.length - i}`, isCurrent: false })),
   ];
 
+  // Check if current code matches a history entry (= was restored)
+  const restoredFromIdx = history.findIndex(h => h.code === snippet.code);
+  const restoredFromLabel = restoredFromIdx >= 0 ? `v${history.length - restoredFromIdx}` : null;
+
   const selected = entries[selectedIdx];
-  // Diff: what changed FROM previous version TO selected (selected is newer)
+  const prevEntry = entries[selectedIdx + 1];
-  const prevEntry = entries[selectedIdx + 1]; // one step older
+  const oldCode = prevEntry?.code ?? null;
-  const oldCode = prevEntry?.code ?? null;    // null = älteste, kein Diff
 
   const delHistory = async (hid) => {
+    if (!window.confirm('Diese Version wirklich löschen?')) return;
     try {
       await api(`/tools/snippets/${snippet.id}/history/${hid}`, { method:'DELETE' });
       await load();
-      // If deleted entry was selected, jump to current
       setSelectedIdx(0);
       toast('Version gelöscht');
     } catch(e) { toast(e.message,'error'); }
@@ -221,6 +223,11 @@ function HistoryModal({ snippet, onClose, onRestore, toast }) {
                       fontFamily:'monospace',fontSize:10,fontWeight: e.isCurrent?700:400}}>
                       {e.label}
                       {e.isCurrent&&<span style={{color:'rgba(78,205,196,0.5)',fontSize:8,marginLeft:4}}>●</span>}
+                      {e.isCurrent && restoredFromLabel && (
+                        <div style={{color:'rgba(255,230,109,0.7)',fontSize:8,fontWeight:400,marginTop:2}}>
+                          ↩ aus {restoredFromLabel}
+                        </div>
+                      )}
                     </div>
                     <div style={{color:'rgba(255,255,255,0.25)',fontFamily:'monospace',fontSize:8,marginTop:2}}>
                       {fmtDt(e.saved_at)}
@@ -573,7 +580,7 @@ export default function CodeSchnipsel({ toast, mobile }) {
   };
 
   const handleDelete = async id => {
-    if (!window.confirm('Schnipsel wirklich löschen?')) return;
+    if (!window.confirm('Schnipsel und alle seine Versionen wirklich löschen?')) return;
     await api(`/tools/snippets/${id}`,{method:'DELETE'});
     setOwn(p=>p.filter(s=>s.id!==id)); toast('Gelöscht');
   };