const puppeteer = require('puppeteer');

export async function generatePdfFromHtml(htmlContent: string): Promise<Buffer> {
  let browser;
  try {
    browser = await puppeteer.launch({
      headless: true,
      args: ['--no-sandbox', '--disable-setuid-sandbox'],
    });

    const page = await browser.newPage();
    await page.setContent(htmlContent, { waitUntil: 'networkidle0' });

    const pdfBuffer = await page.pdf({
      format: 'A4',
      margin: {
        top: '0px',
        right: '0px',
        bottom: '0px',
        left: '0px',
      },
      printBackground: true,
    });

    await browser.close();
    return Buffer.from(pdfBuffer);
  } catch (error) {
    if (browser) {
      await browser.close();
    }
    console.error('PDF generation error:', error);
    throw new Error(`PDF generation failed: ${error instanceof Error ? error.message : 'Unknown error'}`);
  }
}