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#!/usr/bin/env python

import os
import sys
import commands

LIST_WINDOWS = 'wmctrl -l -x | grep -i {} | grep -v grep | tail -n {}'
CHANGE_WINDOW = 'wmctrl -i -a {}'
COMMANDS_TO_WMCMD = {
    'pidgin': 'Pidgin.Pidgin',
    'emacs': 'emacs.Emacs',
    'thunar': 'Thunar.Thunar',
    'firefox': 'Navigator.Firefox',
    'terminator': 'terminator.Terminator',
}


def get_window_id(command):
    # This function is horrible but it's late at night and I just want
    # this shit working :)
    if command == 'pidgin':
        n = 2
    else:
        n = 1
    output = commands.getoutput(
        LIST_WINDOWS.format(COMMANDS_TO_WMCMD[command], n))
    if n > 1:
        if command == 'pidgin':
            lines = output.splitlines()
            for l in lines:
                if 'Lista de amigos' not in l:
                    output = l
                    break
    print(output)
    win_id = output.split(' ')[0]
    return win_id


def main():
    program = sys.argv[1]
    win_id = get_window_id(program)
    if win_id != '':
        os.system(CHANGE_WINDOW.format(win_id))
    else:
        os.system(program)


if __name__ == '__main__':
    main()