# prom433
# Copyright (C) 2021 Andrew Wilkinson
#
# This program 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 of the License, or
# (at your option) any later version.
#
# This program 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 this program.  If not, see <http://www.gnu.org/licenses/>.

import subprocess


def rtl433(args, callback, _popen=subprocess.Popen):
    process = _popen(["rtl_433", "-f", "json"] + args.split(" "),
                     stdout=subprocess.PIPE)
    for line in process.stdout.readlines():
        if not line.startswith("{"):
            continue
        callback(line)
