#!/usr/bin/env python3
# -*- coding: utf-8 -*-

# Copyright (C) 2018 Andy Stewart
#
# Author:     Andy Stewart <lazycat.manatee@gmail.com>
# Maintainer: Andy Stewart <lazycat.manatee@gmail.com>
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program.  If not, see <http://www.gnu.org/licenses/>.

from PyQt5 import QtCore
import functools
import os

class PostGui(QtCore.QObject):

    through_thread = QtCore.pyqtSignal(object, object)

    def __init__(self, inclass=True):
        super(PostGui, self).__init__()
        self.through_thread.connect(self.on_signal_received)
        self.inclass = inclass

    def __call__(self, func):
        self._func = func

        @functools.wraps(func)
        def obj_call(*args, **kwargs):
            self.emit_signal(args, kwargs)
        return obj_call

    def emit_signal(self, args, kwargs):
        self.through_thread.emit(args, kwargs)

    def on_signal_received(self, args, kwargs):
        if self.inclass:
            obj, args = args[0], args[1:]
            self._func(obj, *args, **kwargs)
        else:
            self._func(*args, **kwargs)

def touch(path):
    if not os.path.exists(path):
        basedir = os.path.dirname(path)

        if not os.path.exists(basedir):
            os.makedirs(basedir)

        with open(path, 'a'):
            os.utime(path)