#!/usr/bin/python3
# -*- coding: utf-8 -*-
#
# «oem-config-remove-gtk» - remove-oem-config after completing
#
# Copyright (C) 2010, Mario Limonciello
# Copyright (C) 2010, Sebastian Heinlein
#
#
# Ubiquity 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 2 of the License, or at your option)
# 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 application; if not, write to the Free Software Foundation, Inc.,
# 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA

import glob
import os
import sys

from aptdaemon import client, enums
from aptdaemon.gtk3widgets import AptProgressDialog
from gi.repository import GLib, Gtk


loop = GLib.MainLoop()


def _on_failure(error):
    dia = Gtk.MessageDialog(type=Gtk.MessageType.ERROR,
                            buttons=Gtk.ButtonsType.CLOSE,
                            message_format=error.message)
    dia.run()
    dia.hide()
    loop.quit()
    sys.exit(1)


def _on_finished(dia):
    loop.quit()
    if dia._transaction.exit == enums.EXIT_SUCCESS:
        sys.exit(0)
    else:
        sys.exit(1)


def _on_transaction(trans):
    apt_dialog = AptProgressDialog(trans)
    theme = Gtk.IconTheme.get_default()
    apt_dialog.set_icon(theme.load_icon("update-manager", 16, 0))
    apt_dialog.set_position(Gtk.WindowPosition.CENTER_ALWAYS)
    apt_dialog.run()
    apt_dialog.connect("finished", _on_finished)


def using_cryptsetup():
    if os.path.exists("/home/.ecryptfs"):
        return True

    try:
        with open("/etc/crypttab") as crypttab:
            for line in crypttab:
                if not line.startswith("#"):
                    return True
    except IOError:
        pass

    return False


def main():
    purge = []
    for pkg in ('ubiquity', 'ubiquity-casper',
                'ubiquity-ubuntu-artwork', 'ubiquity-slideshow-ubuntu',
                'oem-config-slideshow-ubuntu', 'ubiquity-frontend-gtk'):
        if glob.glob('/var/lib/dpkg/info/%s.list' % pkg):
            purge.append(pkg)

    if not using_cryptsetup():
        purge.append("cryptsetup")

    ac = client.AptClient()
    ac.commit_packages(
        install=[], reinstall=[], remove=[], purge=purge, upgrade=[],
        downgrade=[], error_handler=_on_failure, reply_handler=_on_transaction)
    loop.run()


if __name__ == "__main__":
    main()