import argparse
import sys

import ee.tools
from ee.drawio import decompress

parser = argparse.ArgumentParser()
ee.tools.add_default_argparse_group(parser)

parser.add_argument("--in",
                    dest="in_path",
                    metavar="DRAWIO")

parser.add_argument("--out",
                    metavar="XML")

args = parser.parse_args()
ee.tools.process_default_argparse_group(args)

in_stream = out_stream = None

try:
    in_stream = open(args.in_path, "rb") if args.in_path else sys.stdin
    out_stream = open(args.out, "w") if args.out else sys.stdout

    decompress(in_stream, out_stream)
except IOError:
    if in_stream:
        in_stream.close()

    if out_stream:
        out_stream.close()