from .management.commands._ldap import ClipperLDAP


def get_ldap_infos(clipper_login):
    ldap = ClipperLDAP()
    try:
        res = ldap.search("(uid={})".format(clipper_login))
    except Exception:
        return None

    if not res:
        return None

    if len(res) != 1:
        raise RuntimeError("LDAP returned too many results: {}".format(res))
    (res,) = res
    promo, dept = ldap.parse_dept(ldap.extract_ldap_info(res, "homeDirectory"))

    return {
        "name": ldap.extract_ldap_info(res, "cn"),
        "promo": promo,
        "dept": dept,
    }