def create_bookmark(bookmark: Bookmark, tag_string: str, current_user: User):
# If URL is already bookmarked, then update it
existing_bookmark: Bookmark = Bookmark.objects.filter(
owner=current_user, url=bookmark.url).first()
if existing_bookmark is not None:
_merge_bookmark_data(bookmark, existing_bookmark)
return update_bookmark(existing_bookmark, tag_string, current_user)
# Update website info
_update_website_metadata(bookmark)
# Set currently logged in user as owner
bookmark.owner = current_user
# Set dates
bookmark.date_added = timezone.now()
bookmark.date_modified = timezone.now()
bookmark.save()
# Update tag list
_update_bookmark_tags(bookmark, tag_string, current_user)
bookmark.save()
return bookmark
