#!/usr/bin/env python

import os
import sys

from Window import *

PROGRAM_NAME = 'PyGTK IMAP Checker'

def get_config(fname):
    conf = {}
    if os.path.isfile(fname):
        try:
            f = open(fname, 'r')
            contents = f.read()
            f.close()
            exec(contents, conf)
        except:
            pass
    return conf

def save_config(fname, conf):
    if os.path.isfile(fname):
        fh = open(fname, 'r')
        old_config = fh.read()
        fh.close()
    else:
        old_config = ''
    new_config = ''
    conf_ents = filter(lambda x: not x.startswith('_'), conf)
    conf_ents.sort()
    for s in map(lambda x: x + ' = ' + repr(conf[x]) + '\n', conf_ents):
        new_config += s
    if old_config != new_config:
        fh = open(fname, 'w')
        fh.write(new_config)
        fh.close()

def main(argv):
    if len(argv) < 2:
        sys.stderr.write('Specify config file as an argument\n')
        return 2

    config_fname = argv[1]

    conf = get_config(config_fname)
    if not ('server' in conf
            and 'port' in conf
            and 'user' in conf
            and 'password' in conf):
        sys.stderr.write(
                'Must specify server, port, user, and password'
                ' in configuration file\n')
        return 1

    window = Window(PROGRAM_NAME, conf)
    window.run()

    save_config(config_fname, window.conf)

if __name__ == "__main__":
    sys.exit(main(sys.argv))