#!/bin/sh
#
#  This file is part of TALER
#  Copyright (C) 2014-2024 Taler Systems SA
#
#  TALER is free software; you can redistribute it and/or modify it under the
#  terms of the GNU General Public License as published by the Free Software
#  Foundation; either version 3, or (at your option) any later version.
#
#  TALER is distributed in the hope that it will be useful, but WITHOUT ANY
#  WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
#  A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
#
#  You should have received a copy of the GNU General Public License along with
#  TALER; see the file COPYING.  If not, If not, see <http://www.gnu.org/license>
#

# This is a converter that takes the output of an
# OAuth2 service which is expected to yield a full_name
# and a birthdate.
#
# The converter doesn't actually do anything, it
# just restricts the output to exactly these values.


# Hard error reporting on.
set -eu

echo "Running $0" 1>&2

# FIXME: use getopt properly here, also support
# -h, -v, -V, ...

if [ "${1:-no}" = "-o" ]
then
    # This converter produces a full name and birthdate.
    echo "full_name"
    echo "birthdate"
    exit 0
fi

# First, check everything we expect is in stdin.
J=$(jq -r 'def get($k):
             if has($k)
               then .[$k]
               else error("attribute missing")
           end;
           {"full_name":get("full_name"),
            "birthdate":get("birthdate")}')

# Return the restricted values.
echo "$J"

exit 0