added dropdown menu

.env.template

@@ -1,27 +1,29 @@
-# === SCHICHTPLANER DOCKER COMPOSE ENVIRONMENT VARIABLES ===
-# Diese Datei wird von docker-compose automatisch geladen
+# .env.template
+# ============================================
+# DOCKER COMPOSE ENVIRONMENT TEMPLATE
+# Copy this file to .env and adjust values
+# ============================================
 
-# Security
-JWT_SECRET=${JWT_SECRET:-your-secret-key-please-change}
-NODE_ENV=${NODE_ENV:-production}
+# Application settings
+NODE_ENV=production
+JWT_SECRET=your-secret-key-please-change
+HOSTNAME=localhost
+
+# Security & Network
+TRUST_PROXY_ENABLED=false
+TRUSTED_PROXY_IPS=127.0.0.1,::1
+FORCE_HTTPS=false
 
 # Database
-DB_PATH=${DB_PATH:-/app/data/database.db}
+DATABASE_PATH=/app/data/schichtplaner.db
 
-# Server
-PORT=${PORT:-3002}
+# Optional features
+ENABLE_PRO=false
+DEBUG=false
 
-# App Configuration
-APP_TITLE="Shift Planning App"
-ENABLE_PRO=${ENABLE_PRO:-false}
+# Port configuration
+APP_PORT=3002
 
-# Trust Proxy Configuration
-TRUST_PROXY_ENABLED=false
-TRUSTED_PROXY_IPS=  # Your load balancer/reverse proxy IPs
-TRUSTED_PROXY_HEADER=x-forwarded-for
-
-# Rate Limiting Configuration  
-RATE_LIMIT_WINDOW_MS=900000
-RATE_LIMIT_MAX_REQUESTS=100
-RATE_LIMIT_SKIP_PATHS=/api/health,/api/status
-RATE_LIMIT_WHITELIST=127.0.0.1,::1
+# ============================================
+# END OF TEMPLATE
+# ============================================

.github/workflows/docker.yml

@@ -83,9 +83,13 @@ jobs:
         with:
           node-version: '20'
 
+      - name: Create package-lock.json
+        working-directory: .
+        run: npm i --package-lock-only
+
       - name: Install backend dependencies
         working-directory: ./backend
-        run: npm install
+        run: npm ci
 
       - name: Run TypeScript check
         working-directory: ./backend

.gitignore

@@ -57,6 +57,7 @@ yarn-error.log*
 # Build outputs
 dist/
 build/
+package-lock.json
 
 # Environment variables
 .env

Dockerfile

@@ -1,22 +1,17 @@
 # Single stage build for workspaces
-FROM node:20-bullseye AS builder
+FROM node:20-bookworm AS builder
 
 WORKDIR /app
 
-# Install Python + OR-Tools
-RUN apt-get update && apt-get install -y python3 python3-pip build-essential \
-  && pip install --no-cache-dir ortools
-
-# Create symlink so python3 is callable as python
-RUN ln -sf /usr/bin/python3 /usr/bin/python
-
 # Copy root package files first
 COPY package*.json ./
 COPY tsconfig.base.json ./
 COPY ecosystem.config.cjs ./
 
 # Install root dependencies
-RUN npm install --only=production
+#RUN npm install --only=production
+RUN npm i --package-lock-only
+RUN npm ci
 
 # Copy workspace files
 COPY backend/ ./backend/
@@ -30,10 +25,7 @@ RUN npm install --workspace=frontend
 RUN npm run build --only=production --workspace=backend
 
 # Build frontend
-RUN npm run build --workspace=frontend
-
-# Verify Python and OR-Tools installation
-RUN python -c "from ortools.sat.python import cp_model; print('OR-Tools installed successfully')"
+RUN npm run build --only=production --workspace=frontend
 
 # Production stage
 FROM node:20-bookworm
@@ -57,7 +49,20 @@ COPY --from=builder /app/frontend/dist/ ./frontend-build/
 COPY --from=builder /app/ecosystem.config.cjs ./
 
 COPY --from=builder /app/backend/src/database/ ./dist/database/
-COPY --from=builder /app/backend/src/database/ ./database/
+# should be obsolete with the line above
+#COPY --from=builder /app/backend/src/database/ ./database/
+
+COPY --from=builder /app/backend/src/python-scripts/ ./python-scripts/
+
+# Install Python + OR-Tools
+RUN apt-get update && apt-get install -y python3 python3-pip build-essential \
+  && pip install --no-cache-dir --break-system-packages ortools
+
+# Create symlink so python3 is callable as python
+RUN ln -sf /usr/bin/python3 /usr/bin/python
+
+# Verify Python and OR-Tools installation
+RUN python -c "from ortools.sat.python import cp_model; print('OR-Tools installed successfully')"
 
 # Copy init script and env template
 COPY docker-init.sh /usr/local/bin/

backend/package.json

@@ -16,7 +16,7 @@
   "dependencies": {
     "@types/bcrypt": "^6.0.0",
     "@types/node": "24.9.2",
-    "vite":"7.1.12",
+    "vite": "7.1.12",
     "bcrypt": "^6.0.0",
     "bcryptjs": "^2.4.3",
     "express": "^4.18.2",
@@ -25,7 +25,9 @@
     "uuid": "^9.0.0",
     "express-rate-limit": "8.1.0",
     "helmet": "8.1.0",
-    "express-validator": "7.3.0"
+    "express-validator": "7.3.0",
+    "exceljs": "4.4.0",
+    "playwright": "^1.37.0"
   },
   "devDependencies": {
     "@types/bcryptjs": "^2.4.2",

backend/src/middleware/rateLimit.ts

@@ -72,8 +72,8 @@ const getRateLimitConfig = () => {
   return {
     windowMs: parseInt(process.env.RATE_LIMIT_WINDOW_MS || '900000'), // 15 minutes default
     max: isProduction 
-      ? parseInt(process.env.RATE_LIMIT_MAX_REQUESTS || '100')  // Stricter in production
-      : parseInt(process.env.RATE_LIMIT_MAX_REQUESTS || '1000'), // More lenient in development
+      ? parseInt(process.env.RATE_LIMIT_MAX_REQUESTS || '1000')  // Stricter in production
+      : parseInt(process.env.RATE_LIMIT_MAX_REQUESTS || '5000'), // More lenient in development
     
     // Development-specific relaxations
     skip: (req: Request) => {
@@ -112,7 +112,7 @@ export const apiLimiter = rateLimit({
 // Strict limiter for auth endpoints
 export const authLimiter = rateLimit({
   windowMs: 15 * 60 * 1000,
-  max: parseInt(process.env.AUTH_RATE_LIMIT_MAX_REQUESTS || '5'),
+  max: parseInt(process.env.AUTH_RATE_LIMIT_MAX_REQUESTS || '100'),
   message: { 
     error: 'Zu viele Login-Versuche, bitte versuchen Sie es später erneut' 
   },
@@ -135,7 +135,7 @@ export const authLimiter = rateLimit({
 // Separate limiter for expensive endpoints
 export const expensiveEndpointLimiter = rateLimit({
   windowMs: 15 * 60 * 1000,
-  max: parseInt(process.env.EXPENSIVE_ENDPOINT_LIMIT || '10'),
+  max: parseInt(process.env.EXPENSIVE_ENDPOINT_LIMIT || '100'),
   message: {
     error: 'Zu viele Anfragen für diese Ressource'
   },

backend/src/routes/shiftPlans.ts

@@ -7,7 +7,9 @@ import {
   updateShiftPlan, 
   deleteShiftPlan,
   createFromPreset,
-  clearAssignments
+  clearAssignments,
+  exportShiftPlanToExcel,
+  exportShiftPlanToPDF
 } from '../controllers/shiftPlanController.js';
 import { 
   validateShiftPlan, 
@@ -30,4 +32,7 @@ router.put('/:id', validateId, validateShiftPlanUpdate, handleValidationErrors,
 router.delete('/:id', validateId, handleValidationErrors, requireRole(['admin', 'maintenance']), deleteShiftPlan);
 router.post('/:id/clear-assignments', validateId, handleValidationErrors, requireRole(['admin', 'maintenance']), clearAssignments);
 
+router.get('/:id/export/excel', validateId, handleValidationErrors, requireRole(['admin', 'maintenance']), exportShiftPlanToExcel);
+router.get('/:id/export/pdf', validateId, handleValidationErrors, requireRole(['admin', 'maintenance']), exportShiftPlanToPDF);
+
 export default router;

backend/src/server.ts

@@ -113,6 +113,21 @@ const configureTrustProxy = (): string | string[] | boolean | number => {
 
 app.set('trust proxy', configureTrustProxy());
 
+app.use((req, res, next) => {
+  const protocol = req.headers['x-forwarded-proto'] || req.protocol;
+  const isHttps = protocol === 'https';
+  
+  // Add security warning for HTTP requests
+  if (!isHttps && process.env.NODE_ENV === 'production') {
+    res.setHeader('X-Security-Warning', 'This application is being accessed over HTTP. For secure communication, please use HTTPS.');
+    
+    // Log HTTP access in production
+    console.warn(`⚠️  HTTP access detected: ${req.method} ${req.path} from ${req.ip}`);
+  }
+  
+  next();
+});
+
 // Security headers
 app.use(helmet({
   contentSecurityPolicy: {
@@ -126,6 +141,7 @@ app.use(helmet({
       objectSrc: ["'none'"],
       mediaSrc: ["'self'"],
       frameSrc: ["'none'"],
+      upgradeInsecureRequests: process.env.FORCE_HTTPS === 'true' ? [] : null
     },
   },
   hsts: {

docker-compose.yml

@@ -6,17 +6,22 @@ services:
     image: ghcr.io/donpat1to/schichtenplaner:v1.0.0
     environment:
       - NODE_ENV=production
-      - JWT_SECRET=${JWT_SECRET:-your-secret-key-please-change}
-    ports:
-      - "3002:3002"
+      - JWT_SECRET=${JWT_SECRET}
+      - TRUST_PROXY_ENABLED=true
+      - TRUSTED_PROXY_IPS=nginx-proxy,172.0.0.0/8,10.0.0.0/8,192.168.0.0/16
+      - FORCE_HTTPS=${FORCE_HTTPS:-false}
+    networks:
+      - app-network
     volumes:
       - app_data:/app/data
     restart: unless-stopped
     healthcheck:
-      test: ["CMD", "curl", "-f", "http://localhost:3002/api/health"]
+      test: ["CMD", "wget", "--no-verbose", "--tries=1", "--spider", "http://localhost:3002/api/health"]
       interval: 30s
       timeout: 10s
       retries: 3
+    expose:
+      - "3002"
 
 volumes:
   app_data:

frontend/index.html

@@ -2,7 +2,7 @@
 <html lang="en">
   <head>
     <meta charset="UTF-8" />
-    <link rel="icon" type="image/svg+xml" href="/vite.svg" />
+    <link rel="icon" type="image/svg+xml" href="/donpat1to.svg" />
     <meta name="viewport" content="width=device-width, initial-scale=1.0" />
     <title>Shift Planning App</title>
   </head>

frontend/package.json

@@ -7,7 +7,9 @@
     "react": "^19.0.0",
     "react-dom": "^19.0.0",
     "react-router-dom": "^6.28.0",
-    "date-fns": "4.1.0"
+    "date-fns": "4.1.0",
+    "@vitejs/plugin-react": "^4.3.3",
+    "vite": "^6.0.7"
   },
   "devDependencies": {
     "@types/node": "20.19.23",
@@ -25,7 +27,9 @@
     "esbuild": "^0.21.0",
     "terser": "5.44.0",
     "babel-plugin-transform-remove-console": "6.9.4",
-    "framer-motion": "12.23.24"
+    "framer-motion": "12.23.24",
+    "file-saver": "2.0.5",
+    "@types/file-saver": "2.0.5"
   },
   "scripts": {
     "dev": "vite dev",

frontend/src/App.tsx

@@ -16,6 +16,7 @@ import Settings from './pages/Settings/Settings';
 import Help from './pages/Help/Help';
 import Setup from './pages/Setup/Setup';
 import ErrorBoundary from './components/ErrorBoundary/ErrorBoundary';
+import SecurityWarning from './components/SecurityWarning/SecurityWarning';
 
 // Free Footer Link Pages (always available)
 import FAQ from './components/Layout/FooterLinks/FAQ/FAQ';
@@ -165,6 +166,7 @@ function App() {
       <NotificationProvider>
         <AuthProvider>
           <Router>
+            <SecurityWarning />
             <NotificationContainer />
             <AppContent />
           </Router>

frontend/src/components/SecurityWarning/SecurityWarning.tsx

@@ -0,0 +1,59 @@
+// src/components/SecurityWarning/SecurityWarning.tsx
+import React, { useState, useEffect } from 'react';
+
+const SecurityWarning: React.FC = () => {
+  const [isHttp, setIsHttp] = useState(false);
+  const [isDismissed, setIsDismissed] = useState(false);
+
+  useEffect(() => {
+    // Check if current protocol is HTTP
+    const checkProtocol = () => {
+      setIsHttp(window.location.protocol === 'http:');
+    };
+
+    checkProtocol();
+    window.addEventListener('load', checkProtocol);
+    
+    return () => window.removeEventListener('load', checkProtocol);
+  }, []);
+
+  if (!isHttp || isDismissed) {
+    return null;
+  }
+
+  return (
+    <div style={{
+      position: 'fixed',
+      top: 0,
+      left: 0,
+      right: 0,
+      backgroundColor: '#ff6b35',
+      color: 'white',
+      padding: '10px 20px',
+      textAlign: 'center',
+      zIndex: 10000,
+      fontSize: '14px',
+      fontWeight: 'bold',
+      boxShadow: '0 2px 4px rgba(0,0,0,0.2)'
+    }}>
+      ⚠️ SECURITY WARNING: This site is being accessed over HTTP. 
+      For secure communication, please use HTTPS.
+      <button 
+        onClick={() => setIsDismissed(true)}
+        style={{
+          marginLeft: '15px',
+          background: 'rgba(255,255,255,0.2)',
+          border: '1px solid white',
+          color: 'white',
+          padding: '2px 8px',
+          borderRadius: '3px',
+          cursor: 'pointer'
+        }}
+      >
+        Dismiss
+      </button>
+    </div>
+  );
+};
+
+export default SecurityWarning;

frontend/src/design/DesignSystem.txt

@@ -19,6 +19,8 @@ export const designTokens = {
       9: '#cda8f0',
       10: '#ebd7fa',
     },
+
+    manager: '#CC0000',
     
     // Semantic Colors
     primary: '#51258f',

frontend/src/pages/ShiftPlans/ShiftPlanCreate.tsx

@@ -18,7 +18,7 @@ const ShiftPlanCreate: React.FC = () => {
   const [searchParams] = useSearchParams();
   const { showNotification } = useNotification();
   const { executeWithValidation, isSubmitting } = useBackendValidation();
-  
+
   const [planName, setPlanName] = useState('');
   const [startDate, setStartDate] = useState('');
   const [endDate, setEndDate] = useState('');
@@ -35,9 +35,9 @@ const ShiftPlanCreate: React.FC = () => {
       console.log('🔄 Lade verfügbare Vorlagen-Presets...');
       const data = await shiftPlanService.getTemplatePresets();
       console.log('✅ Presets geladen:', data);
-      
+
       setPresets(data);
-      
+
       // Setze das erste Preset als Standard, falls vorhanden
       if (data.length > 0) {
         setSelectedPreset(data[0].name);
@@ -75,7 +75,7 @@ const ShiftPlanCreate: React.FC = () => {
     if (!endDate) {
       showNotification({
         type: 'error',
-        title: 'Fehlende Angaben', 
+        title: 'Fehlende Angaben',
         message: 'Bitte wählen Sie ein Enddatum'
       });
       return;
@@ -115,14 +115,14 @@ const ShiftPlanCreate: React.FC = () => {
       });
 
       console.log('✅ Plan erstellt:', createdPlan);
-      
+
       // Erfolgsmeldung und Weiterleitung
       showNotification({
         type: 'success',
         title: 'Erfolg',
         message: 'Schichtplan erfolgreich erstellt!'
       });
-      
+
       setTimeout(() => {
         navigate(`/shift-plans/${createdPlan.id}`);
       }, 1500);
@@ -146,20 +146,20 @@ const ShiftPlanCreate: React.FC = () => {
     <div className={styles.container}>
       <div className={styles.header}>
         <h1>Neuen Schichtplan erstellen</h1>
-        <button 
-          onClick={() => navigate(-1)} 
+        <button
+          onClick={() => navigate(-1)}
           className={styles.backButton}
           disabled={isSubmitting}
         >
           Zurück
         </button>
       </div>
-      
+
       <div className={styles.form}>
         <div className={styles.formGroup}>
           <label>Plan Name:</label>
-          <input 
-            type="text" 
+          <input
+            type="text"
             value={planName}
             onChange={(e) => setPlanName(e.target.value)}
             placeholder="z.B. KW 42 2025"
@@ -171,8 +171,8 @@ const ShiftPlanCreate: React.FC = () => {
         <div className={styles.dateGroup}>
           <div className={styles.formGroup}>
             <label>Von:</label>
-            <input 
-              type="date" 
+            <input
+              type="date"
               value={startDate}
               onChange={(e) => setStartDate(e.target.value)}
               className={styles.input}
@@ -182,8 +182,8 @@ const ShiftPlanCreate: React.FC = () => {
 
           <div className={styles.formGroup}>
             <label>Bis:</label>
-            <input 
-              type="date" 
+            <input
+              type="date"
               value={endDate}
               onChange={(e) => setEndDate(e.target.value)}
               className={styles.input}
@@ -194,8 +194,8 @@ const ShiftPlanCreate: React.FC = () => {
 
         <div className={styles.formGroup}>
           <label>Vorlage verwenden:</label>
-          <select 
-            value={selectedPreset} 
+          <select
+            value={selectedPreset}
             onChange={(e) => setSelectedPreset(e.target.value)}
             className={`${styles.select} ${presets.length === 0 ? styles.empty : ''}`}
             disabled={isSubmitting}
@@ -207,7 +207,7 @@ const ShiftPlanCreate: React.FC = () => {
               </option>
             ))}
           </select>
-          
+
           {selectedPreset && (
             <div className={styles.presetDescription}>
               {getSelectedPresetDescription()}
@@ -222,9 +222,9 @@ const ShiftPlanCreate: React.FC = () => {
         </div>
 
         <div className={styles.actions}>
-          <button 
-            onClick={handleCreate} 
-            className={styles.createButton} 
+          <button
+            onClick={handleCreate}
+            className={styles.createButton}
             disabled={isSubmitting || !selectedPreset || !planName.trim() || !startDate || !endDate}
           >
             {isSubmitting ? 'Wird erstellt...' : 'Schichtplan erstellen'}

frontend/src/pages/ShiftPlans/ShiftPlanView.tsx

@@ -1,5 +1,5 @@
 // frontend/src/pages/ShiftPlans/ShiftPlanView.tsx
-import React, { useState, useEffect } from 'react';
+import React, { useState, useEffect, useRef } from 'react';
 import { useParams, useNavigate } from 'react-router-dom';
 import { useAuth } from '../../contexts/AuthContext';
 import { shiftPlanService } from '../../services/shiftPlanService';
@@ -10,6 +10,7 @@ import { ShiftPlan, TimeSlot, ScheduledShift } from '../../models/ShiftPlan';
 import { Employee, EmployeeAvailability } from '../../models/Employee';
 import { useNotification } from '../../contexts/NotificationContext';
 import { formatDate, formatTime } from '../../utils/foramatters';
+import { saveAs } from 'file-saver';
 
 // Local interface extensions (same as AvailabilityManager)
 interface ExtendedTimeSlot extends TimeSlot {
@@ -44,7 +45,7 @@ const ShiftPlanView: React.FC = () => {
   const navigate = useNavigate();
   const { hasRole, user } = useAuth();
   const { showNotification } = useNotification();
-  
+
   const [shiftPlan, setShiftPlan] = useState<ShiftPlan | null>(null);
   const [employees, setEmployees] = useState<Employee[]>([]);
   const [availabilities, setAvailabilities] = useState<EmployeeAvailability[]>([]);
@@ -54,19 +55,23 @@ const ShiftPlanView: React.FC = () => {
   const [scheduledShifts, setScheduledShifts] = useState<ScheduledShift[]>([]);
   const [showAssignmentPreview, setShowAssignmentPreview] = useState(false);
   const [recreating, setRecreating] = useState(false);
+  const [exporting, setExporting] = useState(false);
+  const [exportType, setExportType] = useState<'pdf' | 'excel' | null>(null);
+  const [dropdownWidth, setDropdownWidth] = useState(0);
+  const dropdownRef = useRef<HTMLDivElement>(null);
 
   useEffect(() => {
     loadShiftPlanData();
-    
+
     // Event Listener für Verfügbarkeits-Änderungen
     const handleAvailabilityChange = () => {
       console.log('📢 Verfügbarkeiten wurden geändert - lade Daten neu...');
       reloadAvailabilities();
     };
-    
+
     // Globales Event für Verfügbarkeits-Änderungen
     window.addEventListener('availabilitiesChanged', handleAvailabilityChange);
-    
+
     return () => {
       window.removeEventListener('availabilitiesChanged', handleAvailabilityChange);
     };
@@ -82,7 +87,7 @@ const ShiftPlanView: React.FC = () => {
     };
 
     document.addEventListener('visibilitychange', handleVisibilityChange);
-    
+
     return () => {
       document.removeEventListener('visibilitychange', handleVisibilityChange);
     };
@@ -97,17 +102,17 @@ const ShiftPlanView: React.FC = () => {
 
   const debugAvailabilityShiftIds = () => {
     if (!availabilities.length) return;
-    
+
     console.log('🔍 AVAILABILITY SHIFT ID ANALYSIS:');
     const uniqueShiftIds = [...new Set(availabilities.map(a => a.shiftId))];
-    
+
     console.log(`Unique shift IDs in availabilities: ${uniqueShiftIds.length}`);
     uniqueShiftIds.forEach(shiftId => {
       const count = availabilities.filter(a => a.shiftId === shiftId).length;
       const pref1 = availabilities.filter(a => a.shiftId === shiftId && a.preferenceLevel === 1).length;
       const pref2 = availabilities.filter(a => a.shiftId === shiftId && a.preferenceLevel === 2).length;
       const pref3 = availabilities.filter(a => a.shiftId === shiftId && a.preferenceLevel === 3).length;
-      
+
       console.log(`   ${shiftId}: ${count} total (✅${pref1} 🔶${pref2} ❌${pref3})`);
     });
   };
@@ -119,6 +124,12 @@ const ShiftPlanView: React.FC = () => {
     }
   }, [availabilities]);
 
+  useEffect(() => {
+    if (dropdownRef.current) {
+      setDropdownWidth(dropdownRef.current.offsetWidth);
+    }
+  }, [exportType]);
+
   // Create a data structure that maps days to their shifts with time slot info - SAME AS AVAILABILITYMANAGER
   const getTimetableData = () => {
     if (!shiftPlan || !shiftPlan.shifts || !shiftPlan.timeSlots) {
@@ -133,7 +144,7 @@ const ShiftPlanView: React.FC = () => {
       if (!acc[shift.dayOfWeek]) {
         acc[shift.dayOfWeek] = [];
       }
-      
+
       const timeSlot = timeSlotMap.get(shift.timeSlotId);
       const enhancedShift: ExtendedShift = {
         ...shift,
@@ -142,7 +153,7 @@ const ShiftPlanView: React.FC = () => {
         endTime: timeSlot?.endTime,
         displayName: timeSlot ? `${timeSlot.name} (${formatTime(timeSlot.startTime)}-${formatTime(timeSlot.endTime)})` : shift.id
       };
-      
+
       acc[shift.dayOfWeek].push(enhancedShift);
       return acc;
     }, {} as Record<number, ExtendedShift[]>);
@@ -202,11 +213,11 @@ const ShiftPlanView: React.FC = () => {
     }
 
     const validationErrors: string[] = [];
-    
+
     // Check for missing time slots - SAME VALIDATION AS AVAILABILITYMANAGER
     const usedTimeSlotIds = new Set(shiftPlan.shifts.map(s => s.timeSlotId));
     const availableTimeSlotIds = new Set(shiftPlan.timeSlots.map(ts => ts.id));
-    
+
     usedTimeSlotIds.forEach(timeSlotId => {
       if (!availableTimeSlotIds.has(timeSlotId)) {
         validationErrors.push(`Zeitslot ${timeSlotId} wird verwendet, existiert aber nicht in timeSlots`);
@@ -240,12 +251,45 @@ const ShiftPlanView: React.FC = () => {
     };
   };
 
+  const handleExport = async () => {
+    if (!shiftPlan || !exportType) return;
+
+    try {
+      setExporting(true);
+
+      let blob: Blob;
+      if (exportType === 'excel') {
+        blob = await shiftPlanService.exportShiftPlanToExcel(shiftPlan.id);
+        saveAs(blob, `Schichtplan_${shiftPlan.name}_${new Date().toISOString().split('T')[0]}.xlsx`);
+      } else {
+        blob = await shiftPlanService.exportShiftPlanToPDF(shiftPlan.id);
+        saveAs(blob, `Schichtplan_${shiftPlan.name}_${new Date().toISOString().split('T')[0]}.pdf`);
+      }
+
+      showNotification({
+        type: 'success',
+        title: 'Export erfolgreich',
+        message: `Der Schichtplan wurde als ${exportType === 'excel' ? 'Excel' : 'PDF'} exportiert.`
+      });
+
+    } catch (error) {
+      console.error(`Error exporting to ${exportType}:`, error);
+      showNotification({
+        type: 'error',
+        title: 'Export fehlgeschlagen',
+        message: `Der ${exportType === 'excel' ? 'Excel' : 'PDF'}-Export konnte nicht durchgeführt werden.`
+      });
+    } finally {
+      setExporting(false);
+    }
+  };
+
   const loadShiftPlanData = async () => {
     if (!id) return;
-    
+
     try {
       setLoading(true);
-      
+
       // Load plan and employees first
       const [plan, employeesData] = await Promise.all([
         shiftPlanService.getShiftPlan(id),
@@ -258,7 +302,7 @@ const ShiftPlanView: React.FC = () => {
       // CRITICAL: Load scheduled shifts and verify they exist
       const shiftsData = await shiftAssignmentService.getScheduledShiftsForPlan(id);
       console.log('📋 Loaded scheduled shifts:', shiftsData.length);
-      
+
       if (shiftsData.length === 0) {
         console.warn('⚠️ No scheduled shifts found for plan:', id);
         showNotification({
@@ -272,21 +316,21 @@ const ShiftPlanView: React.FC = () => {
 
       // Load availabilities - USING THE SAME LOGIC AS AVAILABILITYMANAGER
       console.log('🔄 LADE VERFÜGBARKEITEN FÜR PLAN:', id);
-      
+
       const availabilityPromises = employeesData
         .filter(emp => emp.isActive)
         .map(emp => employeeService.getAvailabilities(emp.id));
-      
+
       const allAvailabilities = await Promise.all(availabilityPromises);
       const flattenedAvailabilities = allAvailabilities.flat();
-      
+
       // Filter to only include availabilities for the current plan - SAME LOGIC AS AVAILABILITYMANAGER
       const planAvailabilities = flattenedAvailabilities.filter(
         availability => availability.planId === id
       );
-      
+
       console.log('✅ VERFÜGBARKEITEN FÜR DIESEN PLAN:', planAvailabilities.length);
-      
+
       setAvailabilities(planAvailabilities);
 
       // Run validation
@@ -312,7 +356,7 @@ const ShiftPlanView: React.FC = () => {
 
     try {
       setRecreating(true);
-      
+
       if (!window.confirm('Möchten Sie die aktuellen Zuweisungen wirklich zurücksetzen? Alle vorhandenen Zuweisungen werden gelöscht.')) {
         return;
       }
@@ -343,7 +387,7 @@ const ShiftPlanView: React.FC = () => {
       // STEP 4: CRITICAL - Force reload of scheduled shifts to get EMPTY assignments
       const refreshedShifts = await shiftAssignmentService.getScheduledShiftsForPlan(shiftPlan.id);
       setScheduledShifts(refreshedShifts); // Update state with EMPTY assignments
-      
+
       // STEP 5: Clear any previous assignment results
       setAssignmentResult(null);
       setShowAssignmentPreview(false);
@@ -383,9 +427,9 @@ const ShiftPlanView: React.FC = () => {
       setPublishing(true);
       setAssignmentResult(null); // Reset previous results
       setShowAssignmentPreview(false); // Reset preview
-      
+
       console.log('🔄 STARTING ASSIGNMENT PREVIEW...');
-      
+
       // FORCE COMPLETE REFRESH - don't rely on cached state
       const [refreshedEmployees, refreshedAvailabilities] = await Promise.all([
         employeeService.getEmployees().then(emps => emps.filter(emp => emp.isActive)),
@@ -399,12 +443,12 @@ const ShiftPlanView: React.FC = () => {
       console.log('- Scheduled Shifts:', scheduledShifts.length);
 
       // DEBUG: Show shift pattern IDs
-      if (shiftPlan.shifts) {
+      /*if (shiftPlan.shifts) {
         console.log('📋 SHIFT PATTERN IDs:');
         shiftPlan.shifts.forEach((shift, index) => {
           console.log(`   ${index + 1}. ${shift.id} (Day ${shift.dayOfWeek}, TimeSlot ${shift.timeSlotId})`);
         });
-      }
+      }*/
 
       const constraints = {
         enforceNoTraineeAlone: true,
@@ -414,7 +458,7 @@ const ShiftPlanView: React.FC = () => {
       };
 
       console.log('🧠 Calling shift assignment service...');
-      
+
       // Use the freshly loaded data, not the state
       const result = await shiftAssignmentService.assignShifts(
         shiftPlan,
@@ -435,7 +479,7 @@ const ShiftPlanView: React.FC = () => {
       console.log('🔍 ASSIGNMENTS BY SHIFT PATTERN:');
       Object.entries(result.assignments).forEach(([shiftId, empIds]) => {
         const shiftPattern = shiftPlan.shifts?.find(s => s.id === shiftId);
-        
+
         if (shiftPattern) {
           console.log(`   ✅ Shift Pattern: ${shiftId}`);
           console.log(`      - Day: ${shiftPattern.dayOfWeek}, TimeSlot: ${shiftPattern.timeSlotId}`);
@@ -451,7 +495,7 @@ const ShiftPlanView: React.FC = () => {
       console.log('🔄 Setting assignment result and showing preview...');
       setAssignmentResult(result);
       setShowAssignmentPreview(true);
-      
+
       console.log('✅ Assignment preview ready, modal should be visible');
 
     } catch (error) {
@@ -465,18 +509,18 @@ const ShiftPlanView: React.FC = () => {
       setPublishing(false);
     }
   };
-  
+
   const handlePublish = async () => {
     if (!shiftPlan || !assignmentResult) return;
 
     try {
       setPublishing(true);
-      
+
       console.log('🔄 Starting to publish assignments...');
-      
+
       // Get fresh scheduled shifts
       const updatedShifts = await shiftAssignmentService.getScheduledShiftsForPlan(shiftPlan.id);
-      
+
       if (!updatedShifts || updatedShifts.length === 0) {
         throw new Error('No scheduled shifts found in the plan');
       }
@@ -486,19 +530,19 @@ const ShiftPlanView: React.FC = () => {
 
       const updatePromises = updatedShifts.map(async (scheduledShift) => {
         const dayOfWeek = getDayOfWeek(scheduledShift.date);
-        
+
         // Find the corresponding shift pattern for this day and time slot
-        const shiftPattern = shiftPlan?.shifts?.find(shift => 
-          shift.dayOfWeek === dayOfWeek && 
+        const shiftPattern = shiftPlan?.shifts?.find(shift =>
+          shift.dayOfWeek === dayOfWeek &&
           shift.timeSlotId === scheduledShift.timeSlotId
         );
-        
+
         let assignedEmployees: string[] = [];
-        
+
         if (shiftPattern) {
           assignedEmployees = assignmentResult.assignments[shiftPattern.id] || [];
           console.log(`📝 Updating scheduled shift ${scheduledShift.id} (Day ${dayOfWeek}, TimeSlot ${scheduledShift.timeSlotId}) with`, assignedEmployees, 'employees');
-          
+
           if (assignedEmployees.length === 0) {
             console.warn(`⚠️ No assignments found for shift pattern ${shiftPattern.id}`);
             console.log('🔍 Available assignment keys:', Object.keys(assignmentResult.assignments));
@@ -506,13 +550,13 @@ const ShiftPlanView: React.FC = () => {
         } else {
           console.warn(`⚠️ No shift pattern found for scheduled shift ${scheduledShift.id} (Day ${dayOfWeek}, TimeSlot ${scheduledShift.timeSlotId})`);
         }
-        
+
         try {
           // Update the scheduled shift with assigned employees
           await shiftAssignmentService.updateScheduledShift(scheduledShift.id, {
             assignedEmployees
           });
-          
+
           console.log(`✅ Successfully updated scheduled shift ${scheduledShift.id}`);
         } catch (error) {
           console.error(`❌ Failed to update shift ${scheduledShift.id}:`, error);
@@ -550,12 +594,12 @@ const ShiftPlanView: React.FC = () => {
 
     } catch (error) {
       console.error('❌ Error publishing shift plan:', error);
-      
+
       let message = 'Unbekannter Fehler';
       if (error instanceof Error) {
         message = error.message;
       }
-      
+
       showNotification({
         type: 'error',
         title: 'Fehler',
@@ -569,7 +613,7 @@ const ShiftPlanView: React.FC = () => {
   const refreshAllAvailabilities = async (): Promise<EmployeeAvailability[]> => {
     try {
       console.log('🔄 Force refreshing ALL availabilities with error handling...');
-      
+
       if (!id) {
         console.error('❌ No plan ID available');
         return [];
@@ -585,20 +629,20 @@ const ShiftPlanView: React.FC = () => {
             return []; // Return empty array instead of failing entire operation
           }
         });
-      
+
       const allAvailabilities = await Promise.all(availabilityPromises);
       const flattenedAvailabilities = allAvailabilities.flat();
-      
+
       // More robust filtering
       const planAvailabilities = flattenedAvailabilities.filter(
         availability => availability && availability.planId === id
       );
-      
+
       console.log(`✅ Successfully refreshed ${planAvailabilities.length} availabilities for plan ${id}`);
-      
+
       // IMMEDIATELY update state
       setAvailabilities(planAvailabilities);
-      
+
       return planAvailabilities;
     } catch (error) {
       console.error('❌ Critical error refreshing availabilities:', error);
@@ -609,21 +653,21 @@ const ShiftPlanView: React.FC = () => {
 
   const debugShiftMatching = () => {
     if (!shiftPlan || !scheduledShifts.length) return;
-    
+
     console.log('🔍 DEBUG: Shift Pattern to Scheduled Shift Matching');
     console.log('==================================================');
-    
+
     shiftPlan.shifts?.forEach(shiftPattern => {
       const matchingScheduledShifts = scheduledShifts.filter(scheduled => {
         const dayOfWeek = getDayOfWeek(scheduled.date);
-        return dayOfWeek === shiftPattern.dayOfWeek && 
-              scheduled.timeSlotId === shiftPattern.timeSlotId;
+        return dayOfWeek === shiftPattern.dayOfWeek &&
+          scheduled.timeSlotId === shiftPattern.timeSlotId;
       });
-      
+
       console.log(`📅 Shift Pattern: ${shiftPattern.id}`);
       console.log(`   - Day: ${shiftPattern.dayOfWeek}, TimeSlot: ${shiftPattern.timeSlotId}`);
       console.log(`   - Matching scheduled shifts: ${matchingScheduledShifts.length}`);
-      
+
       if (assignmentResult) {
         const assignments = assignmentResult.assignments[shiftPattern.id] || [];
         console.log(`   - Assignments: ${assignments.length} employees`);
@@ -640,7 +684,7 @@ const ShiftPlanView: React.FC = () => {
 
   const canPublish = () => {
     if (!shiftPlan || shiftPlan.status === 'published') return false;
-    
+
     // Check if all active employees have set their availabilities
     const employeesWithoutAvailabilities = employees.filter(emp => {
       const empAvailabilities = availabilities.filter(avail => avail.employeeId === emp.id);
@@ -650,6 +694,20 @@ const ShiftPlanView: React.FC = () => {
     return employeesWithoutAvailabilities.length === 0;
   };
 
+  const canPublishAssignment = (): boolean => {
+    if (!assignmentResult) return false;
+
+    // Check if assignment was successful
+    if (assignmentResult.success === false) return false;
+
+    // Check if there are any critical violations
+    const hasCriticalViolations = assignmentResult.violations.some(v =>
+      v.includes('ERROR:') || v.includes('KRITISCH:')
+    );
+
+    return !hasCriticalViolations;
+  };
+
   const getAvailabilityStatus = () => {
     const totalEmployees = employees.length;
     const employeesWithAvailabilities = new Set(
@@ -666,23 +724,23 @@ const ShiftPlanView: React.FC = () => {
   const reloadAvailabilities = async () => {
     try {
       console.log('🔄 Lade Verfügbarkeiten neu...');
-      
+
       // Load availabilities for all employees
       const availabilityPromises = employees
         .filter(emp => emp.isActive)
         .map(emp => employeeService.getAvailabilities(emp.id));
-      
+
       const allAvailabilities = await Promise.all(availabilityPromises);
       const flattenedAvailabilities = allAvailabilities.flat();
-      
+
       // Filter availabilities to only include those for the current shift plan
       const planAvailabilities = flattenedAvailabilities.filter(
         availability => availability.planId === id
       );
-      
+
       setAvailabilities(planAvailabilities);
       console.log('✅ Verfügbarkeiten neu geladen:', planAvailabilities.length);
-      
+
     } catch (error) {
       console.error('❌ Fehler beim Neuladen der Verfügbarkeiten:', error);
     }
@@ -690,26 +748,26 @@ const ShiftPlanView: React.FC = () => {
 
   const getAssignmentsForScheduledShift = (scheduledShift: ScheduledShift): string[] => {
     if (!assignmentResult) return [];
-    
+
     const dayOfWeek = getDayOfWeek(scheduledShift.date);
-    
+
     // Find the corresponding shift pattern for this day and time slot
-    const shiftPattern = shiftPlan?.shifts?.find(shift => 
-      shift.dayOfWeek === dayOfWeek && 
+    const shiftPattern = shiftPlan?.shifts?.find(shift =>
+      shift.dayOfWeek === dayOfWeek &&
       shift.timeSlotId === scheduledShift.timeSlotId
     );
-    
+
     if (shiftPattern && assignmentResult.assignments[shiftPattern.id]) {
       console.log(`✅ Found assignments for shift pattern ${shiftPattern.id}:`, assignmentResult.assignments[shiftPattern.id]);
       return assignmentResult.assignments[shiftPattern.id];
     }
-    
+
     // Fallback: Check if there's a direct match with scheduled shift ID (unlikely)
     if (assignmentResult.assignments[scheduledShift.id]) {
       console.log(`⚠️ Using direct scheduled shift assignment for ${scheduledShift.id}`);
       return assignmentResult.assignments[scheduledShift.id];
     }
-    
+
     console.warn(`❌ No assignments found for scheduled shift ${scheduledShift.id} (Day ${dayOfWeek}, TimeSlot ${scheduledShift.timeSlotId})`);
     return [];
   };
@@ -820,13 +878,10 @@ const ShiftPlanView: React.FC = () => {
                     <div style={{ fontSize: '14px', color: '#666' }}>
                       {formatTime(timeSlot.startTime)} - {formatTime(timeSlot.endTime)}
                     </div>
-                    <div style={{ fontSize: '11px', color: '#999', marginTop: '4px' }}>
-                      ID: {timeSlot.id.substring(0, 8)}...
-                    </div>
                   </td>
                   {days.map(weekday => {
                     const shift = timeSlot.shiftsByDay[weekday.id];
-                    
+
                     if (!shift) {
                       return (
                         <td key={weekday.id} style={{
@@ -844,65 +899,115 @@ const ShiftPlanView: React.FC = () => {
 
                     // Validation: Check if shift has correct timeSlotId and dayOfWeek - SAME AS AVAILABILITYMANAGER
                     const isValidShift = shift.timeSlotId === timeSlot.id && shift.dayOfWeek === weekday.id;
-                    
+
                     let assignedEmployees: string[] = [];
-                    let displayText = '';
+                    let displayContent: React.ReactNode = null;
+
+                    // Helper function to create employee boxes
+                    const createEmployeeBoxes = (employeeIds: string[]) => {
+                      return employeeIds.map(empId => {
+                        const employee = employees.find(emp => emp.id === empId);
+                        if (!employee) return null;
+
+                        // Determine background color based on employee role
+                        let backgroundColor = '#642ab5'; // Default: non-trainee personnel (purple)
+
+                        if (employee.isTrainee) {
+                          backgroundColor = '#cda8f0'; // Trainee
+                        } else if (employee.employeeType === 'manager') {
+                          backgroundColor = '#CC0000'; // Manager
+                        }
+
+                        return (
+                          <div
+                            key={empId}
+                            style={{
+                              backgroundColor,
+                              color: 'white',
+                              padding: '4px 8px',
+                              borderRadius: '4px',
+                              marginBottom: '2px',
+                              fontSize: '12px',
+                              textAlign: 'center',
+                              whiteSpace: 'nowrap',
+                              overflow: 'hidden',
+                              textOverflow: 'ellipsis'
+                            }}
+                            title={`${employee.firstname} ${employee.lastname}${employee.isTrainee ? ' (Trainee)' : ''}`}
+                          >
+                            {employee.firstname} {employee.lastname}
+                          </div>
+                        );
+                      }).filter(Boolean);
+                    };
+
+                    // Helper function to get fallback content
+                    const getFallbackContent = () => {
+                      const shiftsForSlot = shiftPlan?.shifts?.filter(s =>
+                        s.dayOfWeek === weekday.id &&
+                        s.timeSlotId === timeSlot.id
+                      ) || [];
+                      const totalRequired = shiftsForSlot.reduce((sum, s) => sum + s.requiredEmployees, 0);
+                      return totalRequired === 0 ? '-' : `0/${totalRequired}`;
+                    };
 
                     if (shiftPlan?.status === 'published') {
                       // For published plans, use actual assignments from scheduled shifts
                       const scheduledShift = scheduledShifts.find(scheduled => {
                         const scheduledDayOfWeek = getDayOfWeek(scheduled.date);
-                        return scheduledDayOfWeek === weekday.id && 
-                              scheduled.timeSlotId === timeSlot.id;
+                        return scheduledDayOfWeek === weekday.id &&
+                          scheduled.timeSlotId === timeSlot.id;
                       });
-                      
+
                       if (scheduledShift) {
                         assignedEmployees = scheduledShift.assignedEmployees || [];
-                        
-                        // DEBUG: Log if we're still seeing old data
+
+                        // Log if we're still seeing old data
                         if (assignedEmployees.length > 0) {
                           console.warn(`⚠️ Found non-empty assignments for ${weekday.name} ${timeSlot.name}:`, assignedEmployees);
                         }
-                        
-                        displayText = assignedEmployees.map(empId => {
-                          const employee = employees.find(emp => emp.id === empId);
-                          return employee ? `${employee.firstname} ${employee.lastname}` : 'Unbekannt';
-                        }).join(', ');
+
+                        const employeeBoxes = createEmployeeBoxes(assignedEmployees);
+                        displayContent = employeeBoxes.length > 0 ? (
+                          <div style={{ display: 'flex', flexDirection: 'column', gap: '2px' }}>
+                            {employeeBoxes}
+                          </div>
+                        ) : (
+                          <div style={{ color: '#666', fontStyle: 'italic' }}>
+                            {getFallbackContent()}
+                          </div>
+                        );
                       }
                     } else if (assignmentResult) {
                       // For draft with preview, use assignment result
                       const scheduledShift = scheduledShifts.find(scheduled => {
                         const scheduledDayOfWeek = getDayOfWeek(scheduled.date);
-                        return scheduledDayOfWeek === weekday.id && 
-                              scheduled.timeSlotId === timeSlot.id;
+                        return scheduledDayOfWeek === weekday.id &&
+                          scheduled.timeSlotId === timeSlot.id;
                       });
-                      
+
                       if (scheduledShift) {
                         assignedEmployees = getAssignmentsForScheduledShift(scheduledShift);
-                        displayText = assignedEmployees.map(empId => {
-                          const employee = employees.find(emp => emp.id === empId);
-                          return employee ? `${employee.firstname} ${employee.lastname}` : 'Unbekannt';
-                        }).join(', ');
+                        const employeeBoxes = createEmployeeBoxes(assignedEmployees);
+                        displayContent = employeeBoxes.length > 0 ? (
+                          <div style={{ display: 'flex', flexDirection: 'column', gap: '2px' }}>
+                            {employeeBoxes}
+                          </div>
+                        ) : (
+                          <div style={{ color: '#666', fontStyle: 'italic' }}>
+                            {getFallbackContent()}
+                          </div>
+                        );
                       }
                     }
 
-                    // If no assignments yet, show empty or required count
-                    if (!displayText) {
-                      const shiftsForSlot = shiftPlan?.shifts?.filter(s => 
-                        s.dayOfWeek === weekday.id && 
-                        s.timeSlotId === timeSlot.id
-                      ) || [];
-                      
-                      const totalRequired = shiftsForSlot.reduce((sum, s) => 
-                        sum + s.requiredEmployees, 0);
-                      
-                      // Show "0/2" instead of just "0" to indicate it's empty
-                      displayText = `0/${totalRequired}`;
-                      
-                      // Optional: Show empty state more clearly
-                      if (totalRequired === 0) {
-                        displayText = '-';
-                      }
+                    // If no display content set yet, use fallback
+                    if (!displayContent) {
+                      displayContent = (
+                        <div style={{ color: '#666', fontStyle: 'italic' }}>
+                          {getFallbackContent()}
+                        </div>
+                      );
                     }
 
                     return (
@@ -931,24 +1036,22 @@ const ShiftPlanView: React.FC = () => {
                             alignItems: 'center',
                             justifyContent: 'center'
                           }}
-                          title={`Shift Validierung: timeSlotId=${shift.timeSlotId}, dayOfWeek=${shift.dayOfWeek}`}
+                            title={`Shift Validierung: timeSlotId=${shift.timeSlotId}, dayOfWeek=${shift.dayOfWeek}`}
                           >
                             ⚠️
                           </div>
                         )}
 
-                        {displayText}
+                        {displayContent}
 
                         {/* Shift debug info - SAME AS AVAILABILITYMANAGER */}
-                        <div style={{ 
-                          fontSize: '10px', 
-                          color: '#666', 
+                        <div style={{
+                          fontSize: '10px',
+                          color: '#666',
                           marginTop: '4px',
                           textAlign: 'left',
                           fontFamily: 'monospace'
                         }}>
-                          <div>Shift: {shift.id.substring(0, 6)}...</div>
-                          <div>Day: {shift.dayOfWeek}</div>
                           {!isValidShift && (
                             <div style={{ color: '#e74c3c', fontWeight: 'bold' }}>
                               VALIDATION ERROR
@@ -963,7 +1066,6 @@ const ShiftPlanView: React.FC = () => {
             </tbody>
           </table>
         </div>
-
       </div>
     );
   };
@@ -978,20 +1080,20 @@ const ShiftPlanView: React.FC = () => {
   return (
     <div style={{ padding: '20px' }}>
       {/* Header with Plan Information and Actions */}
-      <div style={{ 
-        display: 'flex', 
-        justifyContent: 'space-between', 
+      <div style={{
+        display: 'flex',
+        justifyContent: 'space-between',
         alignItems: 'flex-start',
         marginBottom: '20px'
       }}>
         <div>
           <h1>{shiftPlan.name}</h1>
           <p style={{ color: '#666', margin: 0 }}>
-            {shiftPlan.startDate && shiftPlan.endDate && 
+            {shiftPlan.startDate && shiftPlan.endDate &&
               `Zeitraum: ${formatDate(shiftPlan.startDate)} - ${formatDate(shiftPlan.endDate)}`
             }
           </p>
-          <div style={{ 
+          <div style={{
             display: 'inline-block',
             padding: '4px 12px',
             backgroundColor: shiftPlan.status === 'published' ? '#2ecc71' : '#f1c40f',
@@ -1004,8 +1106,9 @@ const ShiftPlanView: React.FC = () => {
             {shiftPlan.status === 'published' ? 'Veröffentlicht' : 'Entwurf'}
           </div>
         </div>
-          <div style={{ display: 'flex', gap: '10px', alignItems: 'center' }}>
-            {shiftPlan.status === 'published' && hasRole(['admin', 'maintenance']) && (
+        <div style={{ display: 'flex', gap: '10px', alignItems: 'center' }}>
+          {/* "Zuweisungen neu berechnen" button */}
+          {shiftPlan.status === 'published' && hasRole(['admin', 'maintenance']) && (
             <button
               onClick={handleRecreateAssignments}
               disabled={recreating}
@@ -1022,7 +1125,7 @@ const ShiftPlanView: React.FC = () => {
               {recreating ? 'Lösche Zuweisungen...' : 'Zuweisungen neu berechnen'}
             </button>
           )}
-          
+
           <button
             onClick={() => navigate('/shift-plans')}
             style={{
@@ -1057,15 +1160,15 @@ const ShiftPlanView: React.FC = () => {
               <div style={{ fontSize: '18px', fontWeight: 'bold' }}>
                 {availabilityStatus.completed} / {availabilityStatus.total} Mitarbeiter
               </div>
-              <div style={{ 
-                width: '200px', 
-                height: '8px', 
-                backgroundColor: '#e0e0e0', 
+              <div style={{
+                width: '200px',
+                height: '8px',
+                backgroundColor: '#e0e0e0',
                 borderRadius: '4px',
                 marginTop: '5px',
                 overflow: 'hidden'
               }}>
-                <div 
+                <div
                   style={{
                     width: `${availabilityStatus.percentage}%`,
                     height: '100%',
@@ -1075,7 +1178,7 @@ const ShiftPlanView: React.FC = () => {
                 />
               </div>
             </div>
-            
+
             {hasRole(['admin', 'maintenance']) && (
               <div>
                 <button
@@ -1093,11 +1196,11 @@ const ShiftPlanView: React.FC = () => {
                 >
                   {publishing ? 'Berechne...' : 'Automatisch zuweisen'}
                 </button>
-                
+
                 {!canPublish() && (
                   <div style={{ fontSize: '12px', color: '#666', marginTop: '5px' }}>
-                    {availabilityStatus.percentage === 100 
-                      ? 'Bereit zur Berechnung' 
+                    {availabilityStatus.percentage === 100
+                      ? 'Bereit zur Berechnung'
                       : `${availabilityStatus.total - availabilityStatus.completed} Mitarbeiter müssen noch Verfügbarkeit eintragen`}
                   </div>
                 )}
@@ -1142,7 +1245,7 @@ const ShiftPlanView: React.FC = () => {
             width: '90%'
           }}>
             <h2>Wochenmuster-Zuordnung</h2>
-            
+
             {/* Detaillierter Reparatur-Bericht anzeigen */}
             {assignmentResult?.resolutionReport && (
               <div style={{
@@ -1158,15 +1261,15 @@ const ShiftPlanView: React.FC = () => {
                 <h4 style={{ color: '#2c3e50', marginTop: 0, display: 'flex', alignItems: 'center', gap: '10px' }}>
                   <span>📋</span> Detaillierter Reparatur-Bericht
                 </h4>
-                <div style={{ 
-                  fontFamily: 'monospace', 
+                <div style={{
+                  fontFamily: 'monospace',
                   fontSize: '12px',
                   lineHeight: '1.4'
                 }}>
                   {assignmentResult.resolutionReport.map((line, index) => {
                     let color = '#2c3e50';
                     let fontWeight = 'normal';
-                    
+
                     if (line.includes('✅') || line.includes('ALLES KRITISCHEN PROBLEME BEHOBEN')) {
                       color = '#2ecc71';
                       fontWeight = 'bold';
@@ -1181,9 +1284,9 @@ const ShiftPlanView: React.FC = () => {
                     } else if (line.startsWith('   •') || line.startsWith('   -')) {
                       color = '#7f8c8d';
                     }
-                    
+
                     return (
-                      <div key={index} style={{ 
+                      <div key={index} style={{
                         color,
                         fontWeight,
                         marginBottom: line === '' ? '5px' : '2px',
@@ -1196,16 +1299,14 @@ const ShiftPlanView: React.FC = () => {
                 </div>
               </div>
             )}
-              
-            {/* KORRIGIERTE ZUSAMMENFASSUNG */}
+
+            {/* ZUSAMMENFASSUNG */}
             {assignmentResult && (
               <div style={{ marginBottom: '20px' }}>
                 <h4>Zusammenfassung:</h4>
-                
+
                 {/* Entscheidung basierend auf tatsächlichen kritischen Problemen */}
-                {assignmentResult.violations.filter(v => 
-                  v.includes('ERROR:') || v.includes('❌ KRITISCH:')
-                ).length === 0 ? (
+                {(assignmentResult.violations.length === 0) || assignmentResult.success == true ? (
                   <div style={{
                     padding: '15px',
                     backgroundColor: '#d4edda',
@@ -1243,7 +1344,7 @@ const ShiftPlanView: React.FC = () => {
                     </ul>
                   </div>
                 )}
-                
+
                 {/* Warnungen separat anzeigen - NUR wenn welche vorhanden sind */}
                 {assignmentResult.violations.some(v => v.includes('WARNING:') || v.includes('⚠️')) && (
                   <div style={{
@@ -1287,34 +1388,26 @@ const ShiftPlanView: React.FC = () => {
               >
                 Abbrechen
               </button>
-              
-              {/* KORRIGIERTER BUTTON MIT TYPESCRIPT-FIX */}
+
+              {/* BUTTON zum publishen */}
               <button
                 onClick={handlePublish}
-                disabled={publishing || (assignmentResult ? assignmentResult.violations.filter(v => 
-                  v.includes('ERROR:') || v.includes('❌ KRITISCH:')
-                ).length > 0 : true)}
+                disabled={publishing || !canPublishAssignment()}
                 style={{
                   padding: '10px 20px',
-                  backgroundColor: assignmentResult ? (assignmentResult.violations.filter(v => 
-                    v.includes('ERROR:') || v.includes('❌ KRITISCH:')
-                  ).length === 0 ? '#2ecc71' : '#95a5a6') : '#95a5a6',
+                  backgroundColor: canPublishAssignment() ? '#2ecc71' : '#95a5a6',
                   color: 'white',
                   border: 'none',
                   borderRadius: '4px',
-                  cursor: assignmentResult ? (assignmentResult.violations.filter(v => 
-                    v.includes('ERROR:') || v.includes('❌ KRITISCH:')
-                  ).length === 0 ? 'pointer' : 'not-allowed') : 'not-allowed',
+                  cursor: canPublishAssignment() ? 'pointer' : 'not-allowed',
                   fontWeight: 'bold',
                   fontSize: '16px'
                 }}
               >
                 {publishing ? 'Veröffentliche...' : (
                   assignmentResult ? (
-                    assignmentResult.violations.filter(v => 
-                      v.includes('ERROR:') || v.includes('❌ KRITISCH:')
-                    ).length === 0 
-                      ? 'Schichtplan veröffentlichen' 
+                    canPublishAssignment()
+                      ? 'Schichtplan veröffentlichen'
                       : 'Kritische Probleme müssen behoben werden'
                   ) : 'Lade Zuordnungen...'
                 )}
@@ -1322,7 +1415,7 @@ const ShiftPlanView: React.FC = () => {
             </div>
           </div>
         </div>
-      )}     
+      )}
 
       {/* Timetable */}
       <div style={{
@@ -1332,13 +1425,72 @@ const ShiftPlanView: React.FC = () => {
         boxShadow: '0 2px 4px rgba(0,0,0,0.1)'
       }}>
         <h3>
-          Schichtplan 
+          Schichtplan
           {shiftPlan.status === 'published' && ' (Aktuelle Zuweisungen)'}
           {assignmentResult && shiftPlan.status === 'draft' && ' (Exemplarische Woche)'}
         </h3>
-        
+
         {renderTimetable()}
 
+        {shiftPlan.status === 'published' && hasRole(['admin', 'maintenance']) && (
+          <div style={{
+            display: 'flex',
+            alignItems: 'center',
+            position: 'relative',
+            marginLeft: '10px'
+          }}>
+            {/* Export Dropdown */}
+            <div
+              ref={dropdownRef}
+              style={{
+                transform: exportType ? `translateX(-${dropdownWidth}px)` : 'translateX(0)',
+                transition: 'transform 0.3s ease-in-out',
+                position: exportType ? 'absolute' : 'relative',
+                right: exportType ? `-${dropdownWidth}px` : '0'
+              }}
+            >
+              <select
+                value={exportType || ''}
+                onChange={(e) => setExportType(e.target.value as 'pdf' | 'excel' | null)}
+                style={{
+                  padding: '10px 20px',
+                  backgroundColor: 'white',
+                  border: '1px solid #ddd',
+                  borderRadius: '4px',
+                  cursor: 'pointer',
+                  minWidth: '120px'
+                }}
+              >
+                <option value="">Export</option>
+                <option value="pdf">PDF</option>
+                <option value="excel">Excel</option>
+              </select>
+            </div>
+
+            {/* Export Button */}
+            {exportType && (
+              <button
+                onClick={handleExport}
+                disabled={exporting}
+                style={{
+                  padding: '10px 20px',
+                  backgroundColor: '#51258f',
+                  color: 'white',
+                  border: 'none',
+                  borderRadius: '4px',
+                  cursor: exporting ? 'not-allowed' : 'pointer',
+                  fontWeight: 'bold',
+                  marginLeft: '10px',
+                  opacity: exporting ? 0.7 : 1,
+                  transition: 'opacity 0.2s ease'
+                }}
+              >
+                {exporting ? '🔄 Exportiert...' : 'EXPORT'}
+              </button>
+            )}
+          </div>
+        )}
+
         {/* Summary */}
         {days.length > 0 && (
           <div style={{
@@ -1350,11 +1502,11 @@ const ShiftPlanView: React.FC = () => {
             fontSize: '14px'
           }}>
             <strong>Legende:</strong> {
-              shiftPlan.status === 'published' 
+              shiftPlan.status === 'published'
                 ? 'Angezeigt werden die aktuell zugewiesenen Mitarbeiter'
                 : assignmentResult
-                ? 'Angezeigt werden die vorgeschlagenen Mitarbeiter für eine exemplarische Woche'
-                : 'Angezeigt wird "zugewiesene/benötigte Mitarbeiter" pro Schicht und Wochentag'
+                  ? 'Angezeigt werden die vorgeschlagenen Mitarbeiter für eine exemplarische Woche'
+                  : 'Angezeigt wird "zugewiesene/benötigte Mitarbeiter" pro Schicht und Wochentag'
             }
           </div>
         )}

frontend/src/services/apiClient.ts

@@ -26,7 +26,7 @@ export class ApiClient {
     return token ? { 'Authorization': `Bearer ${token}` } : {};
   }
 
-  private async handleApiResponse<T>(response: Response): Promise<T> {
+  private async handleApiResponse<T>(response: Response, responseType: 'json' | 'blob' = 'json'): Promise<T> {
     if (!response.ok) {
       let errorData;
       
@@ -61,7 +61,12 @@ export class ApiClient {
       );
     }
 
-    // For successful responses, try to parse as JSON
+    // Handle blob responses (for file downloads)
+    if (responseType === 'blob') {
+      return response.blob() as Promise<T>;
+    }
+
+    // For successful JSON responses, try to parse as JSON
     try {
       const responseText = await response.text();
       return responseText ? JSON.parse(responseText) : {} as T;
@@ -71,7 +76,7 @@ export class ApiClient {
     }
   }
 
-  async request<T>(endpoint: string, options: RequestInit = {}): Promise<T> {
+  async request<T>(endpoint: string, options: RequestInit = {}, responseType: 'json' | 'blob' = 'json'): Promise<T> {
     const url = `${this.baseURL}${endpoint}`;
     
     const config: RequestInit = {
@@ -85,7 +90,7 @@ export class ApiClient {
 
     try {
       const response = await fetch(url, config);
-      return await this.handleApiResponse<T>(response);
+      return await this.handleApiResponse<T>(response, responseType);
     } catch (error) {
       // Re-throw the error to be caught by useBackendValidation
       if (error instanceof ApiError) {

frontend/src/services/shiftPlanService.ts

@@ -126,4 +126,60 @@ export const shiftPlanService = {
       throw error;
     }
   },
+
+  async exportShiftPlanToExcel(planId: string): Promise<Blob> {
+    try {
+      console.log('📊 Exporting shift plan to Excel:', planId);
+      
+      // Use the apiClient with blob response handling
+      const blob = await apiClient.request<Blob>(`/shift-plans/${planId}/export/excel`, {
+        method: 'GET',
+      }, 'blob');
+      
+      console.log('✅ Excel export successful');
+      return blob;
+    } catch (error: any) {
+      console.error('❌ Error exporting to Excel:', error);
+      
+      if (error.statusCode === 401) {
+        localStorage.removeItem('token');
+        localStorage.removeItem('employee');
+        throw new Error('Nicht authorisiert - bitte erneut anmelden');
+      }
+      
+      if (error.statusCode === 404) {
+        throw new Error('Schichtplan nicht gefunden');
+      }
+      
+      throw new Error('Fehler beim Excel-Export des Schichtplans');
+    }
+  },
+
+  async exportShiftPlanToPDF(planId: string): Promise<Blob> {
+    try {
+      console.log('📄 Exporting shift plan to PDF:', planId);
+      
+      // Use the apiClient with blob response handling
+      const blob = await apiClient.request<Blob>(`/shift-plans/${planId}/export/pdf`, {
+        method: 'GET',
+      }, 'blob');
+      
+      console.log('✅ PDF export successful');
+      return blob;
+    } catch (error: any) {
+      console.error('❌ Error exporting to PDF:', error);
+      
+      if (error.statusCode === 401) {
+        localStorage.removeItem('token');
+        localStorage.removeItem('employee');
+        throw new Error('Nicht authorisiert - bitte erneut anmelden');
+      }
+      
+      if (error.statusCode === 404) {
+        throw new Error('Schichtplan nicht gefunden');
+      }
+      
+      throw new Error('Fehler beim PDF-Export des Schichtplans');
+    }
+  },
 };