from datetime import datetime


def timestamp_zip(string: str) -> str:
    """
    Adds the current date and a .zip ending to the given string.
    Example:
    > timestamp("foo")
    "foo-1997-09-14-1253.zip"
    """
    timestamp = datetime.today().strftime("%Y-%m-%d-%H%M")
    return f"{string}-{timestamp}.zip"