Delete folder structures

[bedhub]

As a user, I want to be able to delete a whole folder hierarchy so I don't have to delete each subfolder one by one .

As a user, I want the deleted folder to appear as-is in the trash folder until the 30 day period is over so I can restore the hierarchy if I made a mistake or change my mind.

AC

• Deletion is just moving to trash (any deleted item becomes a direct child of the trash, preserving the rest of the hierarchy)
• Folders and contents are deleted recursively after the 30 days grace period
• When the folder is empty (no subfolder no mails) we delete it directly
• Move and cleanup rules apply to the spam folder

Implementation hints

Folder Cleanup works as follows:

• we have to store the move (or creation) time on each folder.
• Adapt batch job (CleanupOldMailsBatchJob.java) to inspect every folder that is a descendant of the trash for its move time
• if that is >30 days (folder deletion time), delete all mail inside that also has a move time of >30 days (it was here in the trash for at least 30 days)
• remove folder if it's empty now. (no mails no sub folders)

Notes

• consider inbox rules that target the deleted folders.
• consider mails that are moved to a deleted folder

Test Notes

• Selecting delete on custom folder that isn't in trash folder moves folder to trash
  • any empty folders in the trashed folder get removed
• Selecting delete on custom folder that is in trash folder deletes folder