Unarchive 3 days before due date

gistfile1.txt

function setDueWhenArchived(notification)
{
  new Notification(notification).archivedCard().setDue(Trellinator.now().addDays(7));
}

function scheduleUnArchive(notification,signature)
{
  new Notification(notification).actionOnDueDateAdded("unArchiveCard",signature,function(date)
  {
    date.minusDays(3);
  });
}

function unArchiveCard(notification)
{
  new Notification(notification).card().unArchive();
}