#!/usr/bin/env python3

"""Generate a feed of random (hence bogus, but syntactically correct!) SWHIDs

"""

__copyright__ = "Copyright (C) 2020  Stefano Zacchiroli"
__license__ = "GPL-3.0-or-later"

import random


HEX_DIGITS = "0123456789abcdef"
SWHID_HEX_LEN = 40
SWHID_PREFIX = "swh"
SWHID_SEP = ":"
SWHID_TYPES = ["cnt", "dir", "rev", "rel", "snp"]
SWHID_VERSION = "1"


def random_swhid() -> str:
    return SWHID_SEP.join(
        [
            SWHID_PREFIX,
            SWHID_VERSION,
            random.choice(SWHID_TYPES),
            "".join(random.choices(HEX_DIGITS, k=SWHID_HEX_LEN)),
        ]
    )


def main():
    try:
        while True:
            print(random_swhid())
    except (BrokenPipeError, KeyboardInterrupt):
        pass


if __name__ == "__main__":
    main()