#!/usr/bin/env python

"""
Encode/decode url strings in stdin or the given file(s).
"""

import argparse
import fileinput
try:
    from urllib.parse import quote_plus, quote, unquote_plus, unquote
except ImportError:
    from urllib import quote_plus, quote, unquote_plus, unquote


def main():
    opts = argparse.ArgumentParser(description="Make text URI-safe by encoding/decoding input")
    opts.add_argument('file', type=str, nargs='*', help='File(s) to encode/decode')
    opts.add_argument('-e', '--encode', action='store_true', help='Use encoder')
    opts.add_argument('-E', '--encode-plus', action='store_true', help='Use encoder, but encode spaces as pluses')
    opts.add_argument('-d', '--decode', action='store_true', help='Use decoder')
    opts.add_argument('-D', '--decode-plus', action='store_true', help='Use decoder, but decode pluses as spaces')
    args = opts.parse_args()

    action = quote
    if args.decode:
        action = unquote
    elif args.decode_plus:
        action = unquote_plus
    elif args.encode_plus:
        action = quote_plus

    text = [line for line in fileinput.input(args.file)]
    print(action("\n".join(text).strip()))


if __name__ == '__main__':
    main()