import pathlib
import datetime

def get_file_extension(file):
    return pathlib.Path(file.name).suffix


def generate_filename_for_storage(file):
    ext = get_file_extension(file)
    filename = datetime.datetime.now().strftime("%Y%m%d%H%M%S")
    return f"{filename}{ext}"


def get_bank_logo_file_path(self, _):
    filename = generate_filename_for_storage(self.logo)
    return f"images/bank/{self.pk}/logo/{filename}"