#! /usr/bin/python3
#
# Copyright (c) 2005-2009 Canonical Ltd
#
# AUTHOR:
# Michael Vogt <mvo@ubuntu.com>
#
# This file is part of GDebi
#
# GDebi 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.
#
# GDebi 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 GDebi; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
#

# silly py3 compat, py3.3 should make this unneeded
try:
    unicode
except NameError:
    unicode = lambda *args: args[0]

import sys
import os.path
import gettext
from gettext import gettext as _
from re import findall

from optparse import OptionParser
from GDebi.GDebiCli import GDebiCli
from GDebi.Version import VERSION

# FIXME: - add "--assume-yes" option
#        - add check for removal of essential packages

if __name__ == "__main__":
    localesApp="gdebi"
    localesDir="/usr/share/locale"
    gettext.bindtextdomain(localesApp, localesDir)
    gettext.textdomain(localesApp)

    usage = unicode(_("usage: %prog [options] filename\n"
                      "For a graphical version run gdebi-gtk\n"),"UTF-8")
    parser = OptionParser(usage=usage, version = VERSION)
    parser.add_option("-n", "--non-interactive",
                      action="store_true", dest="non_interactive",
                      default=False,
                      help=unicode(_("Run non-interactive (dangerous!)"),"UTF-8"))
    parser.add_option("-o", "--option",
                      action="append", dest="apt_opts",
                      default=[],
                      help=unicode(_("Set an APT configuration option"),"UTF-8"))
    parser.add_option("-q", "--quiet",
                      action="store_true", dest="quiet",
                      default=False,
                      help=unicode(_("Do not show progress information"),"UTF-8"))
    parser.add_option("--apt-line",
                      action="store_true", dest="apt_line",
                      default=False,
                      help=unicode(_("Simulate only and print a apt-get install compatible line to stderr"), "UTF-8"))
    parser.add_option("--root", dest="rootdir", default="/",
                      help=unicode(_("Use alternative root dir"), "UTF-8"))
    (options, args) = parser.parse_args()

    if len(args) == 0:
        parser.print_help()
        sys.exit(1)

    if not os.path.exists(args[0]):
        sys.stderr.write(_("gdebi error, file not found: %s\n" % args[0]))
        sys.exit(1)

    try:
        debi = GDebiCli(options)
    except SystemError as e:
        print("Error opening the cache:\n%s" % e)
        sys.exit(1)
    if not debi.open(args[0]):
        sys.exit(1)

    if options.apt_line == True:
        (install, remove, unauthenticated) = debi._deb.required_changes
        print(" ".join(install))
        print(" ".join([pkg+"-" for pkg in remove]))
        sys.exit(0)

    if options.non_interactive == True:
        if os.getuid() != 0:
            print(_("Need to be root to install packages"))
            sys.exit(1)
        sys.exit(debi.install())

    # show information
    debi.show_dependencies()
    debi.show_description()
    # check if we actually can install it
    if os.getuid() != 0:
        print(_("Need to be root to install packages"))
        sys.exit(1)
    msg =  _("Do you want to install the software package? [y/N]:")
    sys.stdout.write(msg)
    sys.stdout.flush()
    res = sys.stdin.readline()
    try:
        c = findall("[[(](\S+)/\S+[])]", msg)[0].lower()
    except IndexError:
        c = "y"
    if res.lower().startswith(c):
        sys.exit(debi.install())