Style MediaWiki internal link based on last revision date of a page

[Pete Stenger]

I have a large wiki with a lot of pages, many of which are stale. I want to apply custom CSS to each link based on the age of the page it links to.

I have been digging into the source code of MediaWiki, and for each link, I can get the DBKey starting from a LinkTarget. See the source code here.

I am looking for a process which is essentially:

$dbKey = $target->getDBkey();
$page = find_page_by_title($dbKey);
$last_revision = get_last_revision($page);
// Additional processing based on the date of $last_revision

Alternatively, if there is a way to fetch this information from the API, I could add a JS snippet to recolor the links.

Could anyone point me at resources I could look at to do this?

Edited July 17, 2023 by Pete Stenger (see edit history)