from backend.app.db.models.materials import Material
from functools import lru_cache


@lru_cache(maxsize=128)
def get_materials(session):
    """
    This function will retrieve all materials from the database.
    :return: A list of Material objects if successful, an empty list otherwise.
    """

    materials = session.query(Material).filter(Material.is_active).all()

    return materials if materials else []