/**
 * Node.js script for PDF to image conversion
 * This would be used in the API route for actual PDF processing
 */

const fs = require("fs").promises
const path = require("path")

// Note: In a real implementation, you would use libraries like:
// - pdf-poppler
// - pdf2pic
// - pdf-lib with canvas

async function convertPdfPageToImage(pdfBuffer, pageNumber) {
  try {
    // Placeholder for actual PDF to image conversion
    // This would use a library like pdf-poppler:

    /*
    const pdf_poppler = require('pdf-poppler');
    
    const options = {
      format: 'png',
      out_dir: './temp',
      out_prefix: 'page',
      page: pageNumber
    };
    
    const result = await pdf_poppler.convert(pdfBuffer, options);
    return result;
    */

    console.log(`Converting PDF page ${pageNumber} to image`)
    console.log("PDF buffer size:", pdfBuffer.length)

    // Return placeholder for demo
    return null
  } catch (error) {
    console.error("Error converting PDF to image:", error)
    throw error
  }
}

async function setupTempDirectory() {
  const tempDir = path.join(process.cwd(), "temp")
  try {
    await fs.access(tempDir)
  } catch {
    await fs.mkdir(tempDir, { recursive: true })
  }
  return tempDir
}

module.exports = {
  convertPdfPageToImage,
  setupTempDirectory,
}
