#!/usr/bin/python
# -*- encoding: utf-8; py-indent-offset: 4 -*-
# +------------------------------------------------------------------+
# |             ____ _               _        __  __ _  __           |
# |            / ___| |__   ___  ___| | __   |  \/  | |/ /           |
# |           | |   | '_ \ / _ \/ __| |/ /   | |\/| | ' /            |
# |           | |___| | | |  __/ (__|   <    | |  | | . \            |
# |            \____|_| |_|\___|\___|_|\_\___|_|  |_|_|\_\           |
# |                                                                  |
# | Copyright Mathias Kettner 2014             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.

def inventory_cmciii_lcp_fans(info):
    inventory = []
    # FAN infos have 4 elements. Split the single info line we get
    # into even sized chunks of 4 elements. In some cases there might
    # be non-fan information in the resulting data like infos about
    # water cooling. Filter them out.
    parts = [ info[0][x+1:x+4] for x in range(0, len(info[0]), 4) ]
    for i, (name, value, status) in enumerate(parts):
        if status != "off" and 'FAN' in name:
            # FIXME: Why not use the unique name? Maybe recode
            inventory.append((i+1 , None))
    return inventory

def check_cmciii_lcp_fans(item, params, info):

    lowlevel = int(re.sub(" .*$", "", info[0][0])) # global low warning

    parts = [ info[0][x+1:x+4] for x in range(0, len(info[0]), 4) ]
    for i, (name, value, status) in enumerate(parts):
        if item == i:
            rpm, unit = value.split(" ", 1)
            rpm = int(rpm)

            sym = ""
            if status == "OK" and rpm >= lowlevel:
                state = 0
            elif status == "OK" and rpm < lowlevel:
                state = 1
                sym = "(!)"
            else:
                state = 2
                sym = "(!!)"

            info_text = "%s RPM: %d%s (limit %d%s)%s, Status %s" \
                    %  (name, rpm, unit, lowlevel, unit, sym, status)

            perfdata = [ ("rpm", str(rpm)+unit, str(lowlevel)+":", 0, 0 ) ]

            return (state, info_text, perfdata)

    return (3, "no SNMP data found")

check_info['cmciii_lcp_fans'] = {
    "check_function"      : check_cmciii_lcp_fans,
    "inventory_function"  : inventory_cmciii_lcp_fans,
    "has_perfdata"        : True,
    "service_description" : "LCP Fanunit FAN %s",
    "snmp_scan_function"  : lambda oid: oid(".1.3.6.1.2.1.1.1.0").startswith("Rittal LCP") and \
                                oid(".1.3.6.1.4.1.2606.7.4.2.2.1.3.2.6").startswith("Air.Temperature.DescName"),
    "snmp_info"           : ( '.1.3.6.1.4.1.2606.7.4.2.2.1.10.2', range(34, 58)),
}
