Add features to an online store

I am looking for someone who can add some features to an online store. The online store is nicely built but as far as I have seen the code it’s commented in another language than English. Even so, I think it’s very intuitive so it shouldn’t be a rocket science to add some small features. What I need right now is to be able to print out a receipt trough a cash register. The online store has a backend where I can see all orders. The new feature that I am looking for is a button to print out the receipt. The receipt is the actual shopping card content in a very specific format. When I press this print button I need a file to be created locally that will be something in this form: Product,quantity,price etc. After the file is created, in order to print out the receipt we need to launch a desktop command in this form: [login to view URL] [login to view URL] and some standard parameters To summarize, I need some code added to the php online store, which will generate this file and launch the command to print out the receipt. Please let me know your quote and how you plan to do this. I will also send you an NDA that you will print and sign that you will not use or distribute the online’s store code. Thank you