#!/usr/bin/python
import os
import sys
import json


def get_node_version():
    try:
        p = os.popen('node -v').next().strip()
        return p
    except StopIteration:
        return None


def get_mongo_version():
    try:
        p = os.popen('mongo -version').next().split(':')[1].strip()
        return p
    except StopIteration:
        return None


def get_sbt_version():
    try:
        p = os.popen('sbt --version').next().split('version')[1].strip()
        return p
    except StopIteration:
        return None

def get_go_version():
    try:
        p = os.popen('go version').next().split('go version')[1].strip().split(' ')[0].split('go')[1]
        return p
    except StopIteration:
        return None

print json.dumps({
    "ansible_facts": {
        "installed_node_version": get_node_version(),
        "installed_mongo_version": get_mongo_version(),
        "installed_sbt_version": get_sbt_version(),
        "installed_go_version": get_go_version()
    }
})