def find_negative_item(user_id):
db_handler = DBHandler()
all_items = db_handler.get_all_items()
items_ids = [item.id for item in all_items]
interacted_items = db_handler.get_interactions_by_id(user_id=user_id)
interacted_items_id = [item.item_id for item in interacted_items]
not_interacted_items_id = list(set(items_ids) - set(interacted_items_id))
not_interacted_items = db_handler.get_items_by_ids(not_interacted_items_id)
if not_interacted_items is None:
return None
else:
not_interacted_item = np.random.choice(not_interacted_items)
return not_interacted_item
