DinerWare custom integration

We require a custom integration into the pos software [login to view URL] Attached is the flowchart dictating what we require the system to do after a transaction (Not all transactions) takes place and a customer presents their loyalty card. The loyalty card is a 13 digit barcode, it needs to be barcode scanned (scanner) or the option to enter manually, pop up box for entry. With this information a csv file needs to be created and placed within a specified folder. The flowchart shows the required information to be output to the csv file and its format. Each transaction needs its own csv file created. Email back if there are any questions