import { PDFDocumentProxy, PDFPageProxy, getDocument } from 'npm:pdfjs-dist';

export async function parsePDF(pdfPath: string): Promise<string> {
  // Load the PDF file
  const loadingTask = getDocument(pdfPath);
  const pdf: PDFDocumentProxy = await loadingTask.promise;

  const numPages = pdf.numPages;
  const textContent: string[] = [];

  // Iterate over each page and extract text content
  for (let i = 1; i <= numPages; i++) {
    const page: PDFPageProxy = await pdf.getPage(i);
    const pageContent = await page.getTextContent();
    
    // Extract text from the content items
    const pageText = pageContent.items.map(item => item.str).join(' ');
    textContent.push(pageText);
  }

  // Combine the text content from all pages
  return textContent.join('\n');
}