import requests
import pkg_resources

class Version:
    PYPI_URL = "https://pypi.python.org/pypi/hackertray/json"
    @staticmethod
    def latest():
        res = requests.get(Version.PYPI_URL).json()
        return res['info']['version']

    @staticmethod
    def current():
        return pkg_resources.require("hackertray")[0].version

    @staticmethod
    def new_available():
        latest  = Version.latest()
        current = Version.current()
        print [latest, current]
        try:
            if pkg_resources.parse_version(latest) > pkg_resources.parse_version(current):
                print "[+] New version " + latest + " is available"
                return True
            else:
                return False
        except requests.exceptions.RequestException as e:
            print "[+] There was an error in trying to fetch updates"
            return False