Doesn't track modes not associated with files

[Gleek]

The title is a speculation. I apologize if it's not the case as I haven't gone through the code yet.
Modes such as epub-mode by nov.el, org-agenda and bongo.el's Playlist mode are not reported.
All these modes don't have direct file associations. So it seems to me that file association is currently necessary.

Tracking these temporary buffers or buffers with no file associations should be possible with a blank or buffer-name

Regards.

PS: Thanks for working on and sharing this package. Was searching for some automatic tracking inside emacs in the *Packages* list and landed on this gem.

[Gleek]

Seems like that is what the case is as seen here:

activity-watch-mode/activity-watch-mode.el

Lines 253 to 254 in 789ec34

	(when (and (buffer-file-name (current-buffer))
	(not (auto-save-file-name-p (buffer-file-name (current-buffer)))))

What would be the purpose of this check?

I changed the function to only call the (activity-watch--call) and it is now pushing the data correctly. A small caveat remains, as the file name is pushed as "unknown" instead of the buffer name. That should be an easy fix as well.

This is what I did, in case someone landing on the issue wants to replicate it:

  (defun active-watch--save-override()
    (save-match-data
      (activity-watch--call)))
  (advice-add 'activity-watch--save :override 'active-watch--save-override)

Would you be willing to make this change or accept a PR in the core library unless of course you see an issue invisible to me?