sigit.io/src/utils/file.ts

import { Meta } from '../types'
import { extractMarksFromSignedMeta } from './mark.ts'
import { addMarks, convertToPdfBlob, groupMarksByFileNamePage } from './pdf.ts'
import JSZip from 'jszip'
import { PdfFile } from '../types/drawing.ts'

const getZipWithFiles = async (
  meta: Meta,
  files: { [filename: string]: PdfFile | File }
): Promise<JSZip> => {
  const zip = new JSZip()
  const marks = extractMarksFromSignedMeta(meta)
  const marksByFileNamePage = groupMarksByFileNamePage(marks)

  for (const [fileName, file] of Object.entries(files)) {
    let blob: Blob
    if ('pages' in file) {
      // Handle PDF Files
      const pages = await addMarks(file.file, marksByFileNamePage[fileName])
      blob = await convertToPdfBlob(pages)
    } else {
      // Handle other files
      blob = new Blob([file], { type: file.type })
    }

    zip.file(`files/${fileName}`, blob)
  }

  return zip
}

export { getZipWithFiles }