#!/usr/bin/env python2.7
# -*- coding: UTF-8 -*-

import re
import json
import subprocess

from collections import defaultdict


def fetch_nodejs_version():
    lines = []

    cmd = "node --version"
    args = cmd.split(" ")

    try:
        proc = subprocess.check_output(
            args, stderr=subprocess.STDOUT, universal_newlines=True)
        proc = proc.splitlines()
        for line in proc:
            lines.append(line.rstrip())

        exp = re.compile(r"(\d+(\.\d+){1,})")
        version = exp.search(lines[0]).group()

    except Exception:
        raise

    return version


def main():
    result = defaultdict(dict)

    try:
        version = fetch_nodejs_version()
        result.update(version=version)
        result.update(error=False)
    except OSError:
        result.update(version="0.0.0")
        result.update(error=False)
    except Exception as e:
        result.update(error=True)
        result.update(message=str(e))

    print(json.dumps(result))


if __name__ == "__main__":
    main()