#!/usr/bin/python
# vim: tabstop=4 shiftwidth=4 softtabstop=4

# Copyright 2016-2017 Lenovo
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

import codecs
import optparse
import os
import re
import signal
import sys

try:
    signal.signal(signal.SIGPIPE, signal.SIG_DFL)
except AttributeError:
    pass
path = os.path.dirname(os.path.realpath(__file__))
path = os.path.realpath(os.path.join(path, '..', 'lib', 'python'))
if path.startswith('/opt'):
    sys.path.append(path)

import confluent.client as client

sys.stdout = codecs.getwriter('utf8')(sys.stdout)

filters = []


def pretty(text):
    if text == 'pcislot':
        return 'PCI slot'
    if text == 'partnumber':
        return 'part number'
    return text

def print_mem_info(node, prefix, meminfo):
    capacity = meminfo['capacity_mb'] / 1024
    memdescfmt = '{0}GB PC'
    if meminfo['memory_type'] == 'DDR3 SDRAM':
        memdescfmt += '3-{1} '
    elif meminfo['memory_type'] == 'DDR4 SDRAM':
        memdescfmt += '4-{1} '
    if meminfo['ecc']:
        memdescfmt += 'ECC '
    memdescfmt += meminfo['module_type']
    memdesc = memdescfmt.format(capacity, meminfo['speed'])
    print('{0}: {1} description: {2}'.format(node, prefix, memdesc))
    print('{0}: {1} manufacturer: {2}'.format(
        node, prefix, meminfo['manufacturer']))
    print('{0}: {1} model: {2}'.format(node, prefix, meminfo['model']))
    print('{0}: {1} serial number: {2}'.format(node, prefix,
                                               meminfo['serial']))
    print('{0}: {1} manufacture date: {2}'.format(node, prefix,
                                                  meminfo['manufacture_date']))
    print('{0}: {1} manufacture location: {2}'.format(
        node, prefix, meminfo['manufacture_location']))

exitcode = 0

def printerror(res, node=None):
    global exitcode
    if 'errorcode' in res:
        exitcode = res['errorcode']
    if 'error' in res:
        if node:
            sys.stderr.write('{0}: {1}\n'.format(node, res['error']))
        else:
            sys.stderr.write('{0}\n'.format(res['error']))
        if 'errorcode' not in res:
            exitcode = 1


url = '/noderange/{0}/inventory/hardware/all/all'

argparser = optparse.OptionParser(
    usage="Usage: %prog <noderange> [serial|model|uuid|mac]")
(options, args) = argparser.parse_args()
try:
    noderange = sys.argv[1]
except IndexError:
    argparser.print_help()
    sys.exit(1)
if len(args) > 1:
    if args[1] == 'firm':
        os.execlp('nodefirmware', 'nodefirmware', noderange)
    else:
        url = '/noderange/{0}/inventory/hardware/all/system'
        for arg in args:
            for arg in arg.split(','):
                if arg == 'serial':
                    filters.append(re.compile('serial number'))
                elif arg == 'model':
                    filters.append(re.compile('^model'))
                    filters.append(re.compile('product name'))
                elif arg == 'uuid':
                    filters.append(re.compile('uuid'))
                elif arg == 'mac':
                    filters.append(re.compile('mac address'))
                    url = '/noderange/{0}/inventory/hardware/all/all'
try:
    session = client.Command()
    for res in session.read(url.format(noderange)):
        printerror(res)
        if 'databynode' not in res:
            continue
        for node in res['databynode']:
            printerror(res['databynode'][node], node)
            if 'inventory' not in res['databynode'][node]:
                continue
            for inv in res['databynode'][node]['inventory']:
                prefix = inv['name']
                if not inv['present']:
                    if not filters:
                        print '{0}: {1}: Not Present'.format(node, prefix)
                    continue
                info = inv['information']
                info.pop('board_extra', None)
                info.pop('oem_parser', None)
                info.pop('chassis_extra', None)
                info.pop('product_extra', None)
                if 'memory_type' in info:
                    if not filters:
                        print_mem_info(node, prefix, info)
                    continue
                for datum in info:
                    if filters:
                        for filter in filters:
                            if filter.match(datum.lower()):
                                break
                        else:
                            continue
                    if info[datum] is None:
                        continue
                    print(u'{0}: {1} {2}: {3}'.format(node, prefix,
                                                     pretty(datum),
                                                     info[datum]))
except KeyboardInterrupt:
    print('')
sys.exit(exitcode)