#!/usr/bin/env python
# -*- encoding:utf-8 -*-

import os
from time import sleep
import sys
import commands
import Growl

def get_mtime(f):
    return os.stat(f).st_mtime

def notify(dirname):
    g = Growl.GrowlNotifier(
        applicationName='PEP8 Notify', notifications=['Error'])
    g.register()

    pyfiles = [f for f in os.listdir(dirname) if ".py" in f]
    pystat = dict([[pyfile, get_mtime(pyfile)] for pyfile in pyfiles])

    while 1:
        sleep(1)
        for f in pyfiles:
            new_mtime = get_mtime(f)
            if pystat[f] != new_mtime:
                pystat[f] = new_mtime
                result = commands.getoutput("pep8 %s" % os.path.abspath(f))
                if result == '':
                    result = 'pep8 OK!!!'
                g.notify(
                    noteType='Error',
                    title='PEP8',
                    description=result,
                    sticky=False
                    )

if __name__ == '__main__':
    dirname = os.path.abspath(os.curdir)
    if len(sys.argv) > 2:
        dirname = sys.argv[1]
    notify(dirname)