Create App/Automation to auto append filename with barcode reader data - Mac OS 10.10

OVERVIEW: I am a sports photographer who needs a better way to ingest photos from my camera and associate them with the individual athlete and teams I just shot. My current workflow is as follows: 1) Take a photo of an athlete 2) on a form have an assistant write the photo numbers from the camera 3) download photos from camera to Adobe Lightroom 5 4) modify file names for each athlete in Lightroom 5 I would like to change my workflow to utilize a barcode reader and wireless tethered camera to a Macbook. I have the wireless tether already, which allows me to shoot a photo and it will be deposited in a temporary folder on my computer. That folder in monitored by Lightroom, and is auto-imported into Lightroom and into a final directory. Files are moved out of the temp folder as they imported. I would like an intermediary step added that will see files enter an initial temp directory from camera, the file name is then modified based on the information from a barcode scan, and moved to a second directory monitored by Lightroom that will import the photos. It is this intermediary step I need an app or automation to complete. SOLUTION The overall workflow looks like this. 1) Athletes are given a custom card with barcode that has the following information - Name, Group/Team Number) (example John_Doe_M1) 2) Athlete arrives for photo, gives card to photographer who scans the card (should beep, and display on the screen of the Macbook - large enough to see from a distance) 3) Photographer sees that barcode registered, and takes pictures of Athlete. 4) Photos wirelessly copy from camera to Macbook temporary folder. I use a Camranger ([login to view URL]) for this. 5) App/Automation monitors temporary folder and as photos come in it appends the file name to include the Barcode data (example: original camera file name: [login to view URL], barcode data: John_Doe_M1 = new file name: [login to view URL] (note the removal of the img from file name) 6) App/Automation moves appended file to finished directory, monitored by Lightroom for import. 7) Next athlete arrives, when his card is scanned the data is updated to the screen, and the next photos use the new bar code data. at the end of the session, I should have all photos imported to Lightroom each with the name and team number of each athlete attached to their file names. The App/Automation I need should do steps 2, 5, & 7 I do not have a bar code machine or reader as of yet, i would rather the machine be wired to the Macbook. ISSUE Sometimes it can take time for RAW files to download from camera, and if a file is late getting to computer, and a new barcode is scanned, the wrong name is appended to the late arriving photo. Possible solution: note the time of the bar scan, and apply the appropriate code to any photo with a photo timestamp before the photo was taken. This would require the camera and computer to have identical clock times. and the app would have to read the DateTimeDigitized from the photo's EXIF data. Another Possible solution is that on the Macbook screen - where the Barcode reader data is displayed, each time a file is appended, it displays a message to let the photographer know what the last file appended was. I am open to other solutions provided they meet to overall end result. UI If this can be accomplished with an Mac Automation, that would be fine. But in that case a UI screen to display the Barcode information and file processing is required.