import jsbarcode from 'jsbarcode'
import type { QRCodeRenderersOptions } from 'qrcode'
import { toCanvas } from 'qrcode'

// const canvas = new OffscreenCanvas(0, 0);
const canvas = document.createElement('canvas')
const canvasCtx = canvas.getContext('2d')

export async function genBarcode(text: string, options: jsbarcode.Options)
{
  canvas.width = options.width
  canvas.height = options.height
  canvasCtx.clearRect(0, 0, options.width, options.height)
  try
  {
    jsbarcode(canvas, text, options)
    // return await canvas.transferToImageBitmap();
    return await createImageBitmap(canvas)
  } catch
  {
    return null
  }
}
export async function genQrcode(text: string, options: QRCodeRenderersOptions)
{
  canvas.width = options.width
  canvas.height = options.width
  canvasCtx.clearRect(0, 0, options.width, options.width)
  await toCanvas(canvas, text, options)

  // return await canvas.transferToImageBitmap();
  return await createImageBitmap(canvas)
}