const fs = require('fs');
const path = require('path');
const { generatePdf } = require('../src/utils/pdf/pdfGenerator');
const { generatePoHtml } = require('../src/utils/pdf/templates/po.template');
const { generateGrnHtml } = require('../src/utils/pdf/templates/grn.template');
const { generateAssetHtml } = require('../src/utils/pdf/templates/asset.template');
const { generateAmcHtml } = require('../src/utils/pdf/templates/amc.template');

const OUTPUT_DIR = path.join(__dirname, '..', 'uploads', 'pdf-previews');

const templates = [
  { name: 'purchase-order', html: generatePoHtml() },
  { name: 'grn', html: generateGrnHtml() },
  { name: 'asset', html: generateAssetHtml() },
  { name: 'amc', html: generateAmcHtml() },
];

const run = async () => {
  fs.mkdirSync(OUTPUT_DIR, { recursive: true });

  for (const template of templates) {
    const outputPath = path.join(OUTPUT_DIR, `${template.name}.pdf`);
    const pdfBuffer = await generatePdf(template.html);
    fs.writeFileSync(outputPath, pdfBuffer);
    console.log(`Generated: ${outputPath}`);
  }
};

run().catch((error) => {
  console.error('PDF preview generation failed:', error.message);
  process.exit(1);
});