feat: business card generator engine

Adds react-pdf business card components and a ghostscript CMYK converter script

scripts/generate-business-cards.ts

@@ -0,0 +1,101 @@
+#!/usr/bin/env ts-node
+/**
+ * Generate PDF Business Cards and convert to CMYK
+ */
+
+import * as fs from 'fs';
+import * as path from 'path';
+import * as React from 'react';
+import { renderToBuffer } from '@react-pdf/renderer';
+import { execSync } from 'child_process';
+import { PDFBusinessCard, PersonData } from '../lib/pdf-business-card';
+
+const CONFIG = {
+  outputDir: path.join(process.cwd(), 'public/downloads/business-cards'),
+};
+
+const PEOPLE: PersonData[] = [
+  {
+    name: 'Michael Bodemer',
+    position: 'Owner & Managing Director',
+    phone: '+49 151 462 467 98',
+    email: 'michael.bodemer@klz-cables.com',
+    website: 'www.klz-cables.com',
+  },
+  {
+    name: 'Klaus Mintel',
+    position: 'Managing Director',
+    phone: '+49 151 1775 2873',
+    email: 'klaus.mintel@klz-cables.com',
+    website: 'www.klz-cables.com',
+  },
+];
+
+async function ensureOutputDir() {
+  if (!fs.existsSync(CONFIG.outputDir)) {
+    fs.mkdirSync(CONFIG.outputDir, { recursive: true });
+  }
+}
+
+/**
+ * Konvertiert ein RGB PDF zu CMYK via Ghostscript.
+ */
+function convertToCMYK(inputPath: string, outputPath: string) {
+  console.log(`- Converting to CMYK via Ghostscript...`);
+  try {
+    // Basic CMYK conversion via Ghostscript.
+    // -dSAFER -dBATCH -dNOPAUSE
+    // -sDEVICE=pdfwrite
+    // -sColorConversionStrategy=CMYK
+    // -dProcessColorModel=/DeviceCMYK
+    const gsCommand = `gs -dSAFER -dBATCH -dNOPAUSE -dNOCACHE -sDEVICE=pdfwrite -sColorConversionStrategy=CMYK -dProcessColorModel=/DeviceCMYK -dAutoFilterColorImages=false -dColorImageFilter=/FlateEncode -sOutputFile="${outputPath}" "${inputPath}"`;
+
+    execSync(gsCommand, { stdio: 'pipe' });
+    console.log(`✓ CMYK Print File generated: ${path.basename(outputPath)}`);
+  } catch (err: any) {
+    console.error(`❌ Ghostscript CMYK conversion failed! Is ghostscript (gs) installed?`);
+    console.error(err.message);
+  }
+}
+
+async function generateBusinessCards() {
+  await ensureOutputDir();
+
+  for (const person of PEOPLE) {
+    console.log(`\nGenerating Business Card for: ${person.name}`);
+
+    const safeName = person.name.replace(/\s+/g, '_');
+    const rgbFileName = `KLZ_BusinessCard_${safeName}_RGB.pdf`;
+    const cmykFileName = `KLZ_BusinessCard_${safeName}_CMYK_Print.pdf`;
+
+    const rgbPath = path.join(CONFIG.outputDir, rgbFileName);
+    const cmykPath = path.join(CONFIG.outputDir, cmykFileName);
+
+    console.log(`- Rendering React-PDF layout...`);
+    const buffer = await renderToBuffer(
+      React.createElement(PDFBusinessCard, {
+        person,
+      }),
+    );
+
+    fs.writeFileSync(rgbPath, buffer);
+    console.log(`✓ RGB Master generated: ${rgbFileName}`);
+
+    convertToCMYK(rgbPath, cmykPath);
+  }
+}
+
+async function main() {
+  console.log('--- KLZ Business Card Generator ---');
+  const start = Date.now();
+
+  try {
+    await generateBusinessCards();
+    console.log(`\n✅ Finished in ${((Date.now() - start) / 1000).toFixed(2)}s`);
+  } catch (error) {
+    console.error('\\n❌ Fatal error:', error);
+    process.exit(1);
+  }
+}
+
+main().catch(console.error);