#!/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.

# .1.3.6.1.4.1.674.10892.5.5.1.20.130.4.1.2.1 Physical Disk 0:1:0 --> IDRAC-MIB::physicalDiskName.1
# .1.3.6.1.4.1.674.10892.5.5.1.20.130.4.1.2.2 Physical Disk 0:1:1 --> IDRAC-MIB::physicalDiskName.2
# .1.3.6.1.4.1.674.10892.5.5.1.20.130.4.1.4.1 8 --> IDRAC-MIB::physicalDiskState.1
# .1.3.6.1.4.1.674.10892.5.5.1.20.130.4.1.4.2 8 --> IDRAC-MIB::physicalDiskState.2
# .1.3.6.1.4.1.674.10892.5.5.1.20.130.4.1.11.1 1144064 --> IDRAC-MIB::physicalDiskCapacityInMB.1
# .1.3.6.1.4.1.674.10892.5.5.1.20.130.4.1.11.2 1144064 --> IDRAC-MIB::physicalDiskCapacityInMB.2
# .1.3.6.1.4.1.674.10892.5.5.1.20.130.4.1.22.1 1 --> IDRAC-MIB::physicalDiskSpareState.1
# .1.3.6.1.4.1.674.10892.5.5.1.20.130.4.1.22.2 1 --> IDRAC-MIB::physicalDiskSpareState.2
# .1.3.6.1.4.1.674.10892.5.5.1.20.130.4.1.24.1 3 --> IDRAC-MIB::physicalDiskComponentStatus.1
# .1.3.6.1.4.1.674.10892.5.5.1.20.130.4.1.24.2 3 --> IDRAC-MIB::physicalDiskComponentStatus.2
# .1.3.6.1.4.1.674.10892.5.5.1.20.130.4.1.31.1 0 --> IDRAC-MIB::physicalDiskSmartAlertIndication.1
# .1.3.6.1.4.1.674.10892.5.5.1.20.130.4.1.31.2 0 --> IDRAC-MIB::physicalDiskSmartAlertIndication.2
# .1.3.6.1.4.1.674.10892.5.5.1.20.130.4.1.55.1 Disk 0 in Backplane 1 of Integrated RAID Controller 1 --> IDRAC-MIB::physicalDiskDisplayName.1
# .1.3.6.1.4.1.674.10892.5.5.1.20.130.4.1.55.2 Disk 1 in Backplane 1 of Integrated RAID Controller 1 --> IDRAC-MIB::physicalDiskDisplayName.2


def inventory_dell_idrac_disks(info):
    inventory = []
    for line in info:
        inventory.append((line[0], None))
    return inventory


def check_dell_idrac_disks(item, _no_params, info):
    map_states = {
        "disk_states": {
            "1": (1, "unknown"),
            "2": (0, "ready"),
            "3": (0, "online"),
            "4": (1, "foreign"),
            "5": (2, "offline"),
            "6": (2, "blocked"),
            "7": (2, "failed"),
            "8": (0, "non-raid"),
            "9": (0, "removed"),
        },
        "component_states": {
            "1": (0, "other"),
            "2": (1, "unknown"),
            "3": (0, "OK"),
            "4": (0, "non-critical"),
            "5": (2, "critical"),
            "6": (1, "non-recoverable"),
        },
        "diskpower_states": {
            "1": (0, "no-operation"),
            "2": (1, "REBUILDING"),
            "3": (1, "data-erased"),
            "4": (1, "COPY-BACK"),
        },
    }

    map_spare_state_info = {
        "1": "not a spare",
        "2": "dedicated hotspare",
        "3": "global hotspare",
    }

    for disk_name, disk_state, capacity_MB, spare_state, \
        component_state, smart_alert, diskpower_state, display_name in info:
        if disk_name == item:
            yield 0, "[%s] Size: %s" % \
                (display_name, get_bytes_human_readable(int(capacity_MB) * 1024 * 1024))

            for what, what_key, what_text in [(disk_state, "disk_states", "Disk state"),
                                              (component_state, "component_states",
                                               "Component state")]:
                state, state_readable = map_states[what_key][what]
                yield state, "%s: %s" % (what_text, state_readable)

            if smart_alert != "0":
                yield 2, "Smart alert on disk"

            if spare_state != "1":
                yield 0, map_spare_state_info[spare_state]

            if diskpower_state != "1":
                state, state_readable = map_states["diskpower_states"][diskpower_state]
                yield state, "%s" % (state_readable)


check_info["dell_idrac_disks"] = {
    "check_function": check_dell_idrac_disks,
    "inventory_function": inventory_dell_idrac_disks,
    "service_description": "Disk %s",
    "snmp_scan_function": lambda oid: oid('.1.3.6.1.2.1.1.2.0') == ".1.3.6.1.4.1.674.10892.5",
    "snmp_info": (
        ".1.3.6.1.4.1.674.10892.5.5.1.20.130.4.1",
        [
            "2",  # physicalDiskName
            "4",  # physicalDiskState
            "11",  # physicalDiskCapacityInMB
            "22",  # physicalDiskSpareState
            "24",  # physicalDiskComponentStatus
            "31",  # physicalDiskSmartAlertIndication
            "50",  # physicalDiskPowerState
            "55",  # physicalDiskDisplayName
        ]),
}
