#!/usr/bin/python
# -*- encoding: utf-8; py-indent-offset: 4 -*-
# +------------------------------------------------------------------+
# |             ____ _               _        __  __ _  __           |
# |            / ___| |__   ___  ___| | __   |  \/  | |/ /           |
# |           | |   | '_ \ / _ \/ __| |/ /   | |\/| | ' /            |
# |           | |___| | | |  __/ (__|   <    | |  | | . \            |
# |            \____|_| |_|\___|\___|_|\_\___|_|  |_|_|\_\           |
# |                                                                  |
# | Copyright Mathias Kettner 2013             mk@mathias-kettner.de |
# +------------------------------------------------------------------+
#
# This file is part of Check_MK.
# The official homepage is at http://mathias-kettner.de/check_mk.
#
# check_mk 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 in version 2.  check_mk is  distributed
# in the hope that it will be useful, but WITHOUT ANY WARRANTY;  with-
# out even the implied warranty of  MERCHANTABILITY  or  FITNESS FOR A
# PARTICULAR PURPOSE. See the  GNU General Public License for more de-
# tails. You should have  received  a copy of the  GNU  General Public
# License along with GNU Make; see the file  COPYING.  If  not,  write
# to the Free Software Foundation, Inc., 51 Franklin St,  Fifth Floor,
# Boston, MA 02110-1301 USA.

# Example output
#<<<win_wmi_updates:sep(44):cached(1494868004,3600)>>>
#Node,Description,HotFixID,InstalledOn^M
#S050MWSIZ001,Update,KB2849697,5/10/2017^M
#S050MWSIZ001,Update,KB2849697,5/10/2017^M
#S050MWSIZ001,Update,KB2849696,5/10/2017^M
#S050MWSIZ001,Update,KB2849696,5/10/2017^M
#S050MWSIZ001,Update,KB2841134,5/10/2017^M
# Microsoft Office Professional Plus 2010|Microsoft Corporation|14.0.7015.1000

# InstalledOn may have different formats, see
# https://docs.microsoft.com/de-de/windows/desktop/CIMWin32Prov/win32-quickfixengineering
# Examples:
# - 20170523
# - 23-10-2013
# - 5/23/2017
# - 01ce83596afd20a7


def _parse_install_date(install_date_str):
    for format_ in ["%Y%m%d", "%m/%d/%Y", "%d-%m-%Y"]:
        try:
            return time.mktime(time.strptime(install_date_str, format_))
        except ValueError:
            pass
    # However, some systems may return a 64-bit hexidecimal value in the Win32
    # FILETIME format:
    # Contains a 64-bit value representing the number of 100-nanosecond intervals
    # since January 1, 1601 (UTC).
    try:
        return 1.0 * int(install_date_str, 16) / 10**7
    except ValueError:
        pass
    return


def inv_win_wmi_updates(info):
    parsed_packages = []
    for line in info:
        if len(line) != 4 or line == ["Node", "Description", "HotFixID", "InstalledOn"]:
            continue

        _id, description, knowledge_base, install_date_str = line
        parsed_packages.append({
            "name"          : "Windows Update " + knowledge_base,
            "version"       : knowledge_base,
            "vendor"        : "Microsoft " + description,
            "install_date"  : _parse_install_date(install_date_str),
            "package_type"  : "wmi",
        })

    paclist = inv_tree_list("software.packages:")
    paclist.extend(sorted(parsed_packages, key=lambda r: r.get('name')))


inv_info['win_wmi_updates'] = {
    "inv_function": inv_win_wmi_updates,
}
