#!/usr/bin/env python

import argparse
import json
import sys
import os.path


EXPECTED = frozenset(['far.cxx', 'bar.cc', 'foo.cpp', 'boo.c++'])


def main():
    parser = argparse.ArgumentParser()
    parser.add_argument('input', type=argparse.FileType('r'))
    args = parser.parse_args()
    # file is open, parse the json content
    input = json.load(args.input)
    # just get file names
    result = set([os.path.basename(entry['file']) for entry in input])
    return 0 if result == EXPECTED else 1


if __name__ == '__main__':
    sys.exit(main())