How to determine the successful completion of the printing process under linux?

Question

linux

There is a Raspberry PI in the local network, files that need to be printed fall on it from the outside into a certain folder. After printing, the files should be deleted.
The problem is that files can be either 2-3kb or 40-50Mb. The latter simply contain hundreds of sheets.
How to implement the process correctly? A new file has appeared -> we print -> we are waiting for the successful completion of printing -> we delete the file. In this case, the file should not be deleted before it is printed and the file should not be printed 2 times.

Answer 1

lp -m closest to the desired . but it's send a letter.
If on the knee, then once a minute we
transfer files from the PRINT folder to the PRINT folder,
run the print for the transferred file, the
second script runs once an hour and deletes files older than 2 hours in the PRINT folder