#!/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.
#
# Example Output:
# .1.3.6.1.4.1.5951.4.1.1.53.1.1.0  13
# .1.3.6.1.4.1.5951.4.1.1.53.1.2.0  11

factory_settings["netscaler_dnsrates_default_levels"] = {
    "query": (1500.0, 2000.0),
    "answer": (1500.0, 2000.0),
}


def inventory_netscaler_dnsrates(info):
    if info:
        return [(None, 'netscaler_dnsrates_default_levels')]


def check_netscaler_dnsrates(_no_item, params, info):
    queries, answers = map(int, info[0])

    now = time.time()
    for name, counter in [("query", queries), ("answer", answers)]:

        rate = get_rate(name, now, counter)
        warn, crit = params[name]
        infotext = "%s rate %.1f/sec" % (name, rate)
        perfdata = [(name + "_rate", rate, warn, crit, 0)]

        state = 0
        if rate >= crit:
            state = 2
        elif rate >= warn:
            state = 1
        if state > 0:
            infotext += " (warn/crit at %.1f/%.1f /sec)" % (warn, crit)

        yield state, infotext, perfdata


check_info["netscaler_dnsrates"] = {
    "check_function": check_netscaler_dnsrates,
    "inventory_function": inventory_netscaler_dnsrates,
    "service_description": "DNS rates",
    "has_perfdata": True,
    "group": "netscaler_dnsrates",
    "snmp_info": (
        ".1.3.6.1.4.1.5951.4.1.1.53.1",
        [  # nsDnsServerStatsGroup
            1,  # dnsTotQueries
            2,  # dnsTotAnswers
        ]),
    "snmp_scan_function": lambda oid: oid(".1.3.6.1.2.1.1.2.0").startswith(".1.3.6.1.4.1.5951.1"),
    "default_levels_variable": "netscaler_dnsrates_default_levels",
}
