#!/data/data/com.termux/files/usr/bin/python3

import datetime
import json
import os
import pytz
import subprocess
import sys
import yaml


def to_iso6801_basic(dt):
    return dt.isoformat().replace(':', '').replace('-', '') \
        .replace('+0000', 'Z')


def compute(target_dir_path):
    loc_json = subprocess.check_output(['termux-location', '-p', 'network']) \
        .decode(sys.stdout.encoding)
    req_time = datetime.datetime.now(pytz.utc)
    loc_attr = yaml.load(loc_json)
    target_path = os.path.join(
        target_dir_path,
        '{}.yml'.format(to_iso6801_basic(req_time)),
    )
    with open(target_path, 'w') as f:
        f.write(yaml.dump(
            loc_attr,
            default_flow_style=False,
        ))


def _init_argparser():
    import argparse
    argparser = argparse.ArgumentParser(description=None)
    argparser.add_argument(
        '--target-dir',
        metavar='PATH',
        dest='target_dir_path',
        default='.',
    )
    return argparser


def main(argv):
    argparser = _init_argparser()
    try:
        import argcomplete
        argcomplete.autocomplete(argparser)
    except ImportError:
        pass
    args = argparser.parse_args(argv)
    compute(**vars(args))
    return 0

if __name__ == "__main__":
    sys.exit(main(sys.argv[1:]))