Checkin Seite erstellt

services/pdf-service.js

@@ -1,6 +1,7 @@
 // PDF-Generierung Service
 
 const PDFDocument = require('pdfkit');
+const QRCode = require('qrcode');
 const { db } = require('../database');
 const { formatDate, formatDateTime } = require('../helpers/utils');
 const { getHolidaysForDateRange } = require('./feiertage-service');
@@ -528,4 +529,72 @@ function generatePDFToBuffer(timesheetId, req) {
   });
 }
 
-module.exports = { generatePDF, generatePDFToBuffer };
+// Check-in/Check-out URL-Basis (wie im Dashboard-Frontend)
+function getCheckinBaseUrl(req) {
+  const baseUrl = `${req.protocol}://${req.get('host')}`;
+  return baseUrl.replace(/:\d+$/, ':3334');
+}
+
+// PDF mit Check-in- und Check-out-QR-Codes (A4)
+async function generateCheckinCheckoutQRPDF(req, res) {
+  const userId = req.session.userId;
+  if (!userId) {
+    return res.status(401).send('Nicht angemeldet');
+  }
+  const checkinBaseUrl = getCheckinBaseUrl(req);
+  const checkinUrl = `${checkinBaseUrl}/api/checkin/${userId}`;
+  const checkoutUrl = `${checkinBaseUrl}/api/checkout/${userId}`;
+
+  try {
+    const [checkinQRBuffer, checkoutQRBuffer] = await Promise.all([
+      QRCode.toBuffer(checkinUrl, { type: 'png', width: 400, margin: 1 }),
+      QRCode.toBuffer(checkoutUrl, { type: 'png', width: 400, margin: 1 })
+    ]);
+
+    const firstname = (req.session.firstname || '').replace(/\s+/g, '');
+    const lastname = (req.session.lastname || '').replace(/\s+/g, '');
+    const namePart = [firstname, lastname].filter(Boolean).join('_') || 'User';
+    const today = new Date();
+    const dateStr = today.getFullYear() + '-' +
+      String(today.getMonth() + 1).padStart(2, '0') + '-' +
+      String(today.getDate()).padStart(2, '0');
+    const filename = `Check-in_Check-out_QR_${namePart}_${dateStr}.pdf`;
+
+    res.setHeader('Content-Type', 'application/pdf');
+    res.setHeader('X-Content-Type-Options', 'nosniff');
+    res.setHeader('Content-Disposition', `attachment; filename="${filename}"`);
+
+    const doc = new PDFDocument({ size: 'A4', margin: 50 });
+    doc.pipe(res);
+
+    const pageWidth = 595.28 - 100;
+    const qrSize = 160;
+    const gap = 40;
+    const left1 = 50 + (pageWidth / 2 - qrSize - gap / 2);
+    const left2 = 50 + (pageWidth / 2 + gap / 2);
+
+    doc.fontSize(18).text('Check-in / Check-out – Zeiterfassung', { align: 'center' });
+    doc.moveDown(1.5);
+
+    const topY = doc.y;
+    doc.image(checkinQRBuffer, left1, topY, { width: qrSize, height: qrSize });
+    doc.image(checkoutQRBuffer, left2, topY, { width: qrSize, height: qrSize });
+
+    doc.fontSize(12).font('Helvetica-Bold');
+    doc.text('Check-in', left1, topY + qrSize + 8, { width: qrSize, align: 'center' });
+    doc.text('Check-out', left2, topY + qrSize + 8, { width: qrSize, align: 'center' });
+
+    doc.moveDown(2);
+    doc.font('Helvetica').fontSize(10);
+    doc.text('Scannen Sie den jeweiligen QR-Code zum Erfassen von Arbeitsbeginn (Check-in) bzw. Arbeitsende (Check-out).', 50, doc.y, { width: pageWidth, align: 'center' });
+
+    doc.end();
+  } catch (err) {
+    console.error('Fehler beim Generieren des QR-PDFs:', err);
+    if (!res.headersSent) {
+      res.status(500).send('Fehler beim Erstellen des PDFs');
+    }
+  }
+}
+
+module.exports = { generatePDF, generatePDFToBuffer, generateCheckinCheckoutQRPDF };