🎉 Improved session management system and logs organization 🎨

backend/app.py

@@ -1082,6 +1082,67 @@ def api_version():
         "environment": get_environment_type()
     })
 
+@app.route("/api/stats", methods=['GET'])
+@login_required
+def api_stats():
+    """
+    Allgemeine System-Statistiken API-Endpunkt.
+    
+    Stellt grundlegende Statistiken über das System zur Verfügung.
+    """
+    try:
+        from models import get_db_session, User, Printer, Job
+        
+        with get_cached_session() as db_session:
+            # Grundlegende Counts
+            total_users = db_session.query(User).count()
+            total_printers = db_session.query(Printer).count()
+            total_jobs = db_session.query(Job).count()
+            
+            # Aktive Jobs
+            active_jobs = db_session.query(Job).filter(
+                Job.status.in_(['pending', 'printing', 'paused'])
+            ).count()
+            
+            # Abgeschlossene Jobs heute
+            from datetime import date
+            today = date.today()
+            completed_today = db_session.query(Job).filter(
+                Job.status == 'completed',
+                Job.updated_at >= today
+            ).count()
+            
+            # Online-Drucker (aktive Drucker)
+            online_printers = db_session.query(Printer).filter(
+                Printer.active == True
+            ).count()
+        
+        stats = {
+            'total_users': total_users,
+            'total_printers': total_printers,
+            'total_jobs': total_jobs,
+            'active_jobs': active_jobs,
+            'completed_today': completed_today,
+            'online_printers': online_printers,
+            'timestamp': datetime.now().isoformat()
+        }
+        
+        app_logger.info(f"✅ API-Statistiken abgerufen von {current_user.username}")
+        
+        return jsonify({
+            'success': True,
+            'stats': stats,
+            'message': 'Statistiken erfolgreich geladen'
+        })
+        
+    except Exception as e:
+        app_logger.error(f"❌ Fehler beim Abrufen der API-Statistiken: {str(e)}")
+        return jsonify({
+            'success': False,
+            'error': 'Fehler beim Laden der Statistiken',
+            'details': str(e)
+        }), 500
+
 # Statische Seiten
 @app.route("/privacy")
 def privacy():