Barcode Scanner Plugin for Jigoshop

I am looking for someone to build a Jigoshop Plugin or Hack, to enable me to reduce stock in my Jigoshop inventory, once a barcode is scanned. The plugin should work as follows. Barcode will be SKU field. Once barcode is scanned the plugin will remove one item from stock based on the SKU. I don't really think any other functions are required.