remove everything from a zip from both index and database? this is a bit complex because when a zip is loaded the zip file name is not stored in ES neither database, thus it is not clear which files belong to which zip.
given a list of filenames, remove them from index and database
test to make sure they are clean from both index and database
Note: If (1) is complicated (such as if this needs to change contents to index in ES so that everything needs to be re-indexed again), just do (2).
Note: If (1) is complicated (such as if this needs to change contents to index in ES so that everything needs to be re-indexed again), just do (2).