Package indesign file automatically using extended script

Sure, there is!
Do you want to write a script yourself, or are you looking for a 'ready-to-use' script?

Here's a script I wrote for CS3 and used for years to make archives of completed issues of our magazine. However, it's a bit outdated since it doesn't use the new features available in newer versions: e.g. creating idml, pdf.

Recently, I wrote a new script which supports all possible versions -- from CS to CC 2018 -- on both platforms. I tested it at work and it did the job very well for me. It is supposed to be triggered from my new batch processor (I haven't posted it on my site yet because I'm still polishing it up), and it can package files in thousands starting from the selected folder and processing all subfolders. I usually run it before leaving the office so it would work when I am away. When I come back, I read the log looking for issues: e.g. missing fonts.

— Kas

Yes.

If you are looking for some code search the forum first.
Some hints, examples and step stones here:

[CC2018] [JS] DOM change

Regards,
Uwe