victorperin/qr-scanner-cli

import errorHandlers from '../handlers/error'
import { getBitmap } from '../infrastructure/jimp'
import { outputText } from '../handlers/flags'
import { Flags } from '../cli/flags'
import { scanFromBitmap } from './scanFromBitmap'

/**
 * This function reads a file, get it's bitmap, searches and read a qrcode from it.
 * ```javascript
 * const value = await scanFromFile('./image.jpg')
 * ```
 *
 * @param filePath A file path for an image file containing a QR Code
 * @param flags
 * @returns Value read from the QR Code inside the image
 */
export const scanFromFile = (filePath: string, flags?: Flags): Promise<string> =>
  Promise.resolve(filePath)
    .then(getBitmap)
    .then((bitmap) => scanFromBitmap(bitmap, flags))
    .catch(errorHandlers.scanFromFile(filePath))

export const scanFromFileOnCli = (filePath: string, flags: Flags): Promise<void> =>
  scanFromFile(filePath, flags).then(outputText(flags))