###
# Copyright 2016-2021 Hewlett Packard Enterprise, Inc. All rights reserved.
#
# 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.
###

# -*- coding: utf-8 -*-
""" Reboot Command for rdmc """

import sys
import time

from argparse import ArgumentParser, SUPPRESS
from six.moves import input

from ilorest.rdmc_helper import ReturnCodes, InvalidCommandLineError, Encryption, \
                InvalidCommandLineErrorOPTS, NoContentsFoundForOperationError

class RebootCommand():
    """ Reboot server that is currently logged in """
    def __init__(self):
        self.ident = {
            'name':'reboot',
            'usage': None,
            'description':'Remotely control system power state commands such as, '
                    '\n\t1. Turning the system on.\n\t2. Turning the system off.\n\t3. Power '
                    'cycling/rebooting.\n\t4. Issuing a Non-Maskable Interrupt (NMI).\n\t5. Any '
                    'number of pre-defined operations through virtual power-button presses.'
                    '\n\n\tNote: By default a force '
                    'restart will occur, if the system is in an applicable power state.\n\texample: '
                    'reboot On\n\n\tOPTIONAL PARAMETERS AND DESCRIPTIONS:'
                    '\n\tOn \t\t(Turns the system on.)\n\tForceOff  '
                    '\t(Performs an immediate non-graceful shutdown.)'
                    '\n\tForceRestart \t(DEFAULT) (Performs'
                    ' an immediate non-graceful shutdown,\n\t\t\t'
                    ' followed by a restart of the system.)\n\tNmi  '
                    '\t\t(Generates a Non-Maskable Interrupt to cause'
                    ' an\n\t\t\t immediate system halt.)\n\tPushPowerButton '
                    '(Simulates the pressing of the physical power '
                    'button\n\t\t\t on this system.)\n\n\tOEM PARAMETERS AND'
                    ' DESCRIPTIONS:\n\tPress\t\t(Simulates the pressing of the'
                    ' physical power button\n\t\t\t on this system.)\n\t'
                    'PressAndHold\t(Simulates pressing and holding of the power'
                    ' button\n\t\t\t on this systems.)\n\tColdBoot\t(Immidiately'
                    ' Removes power from the server,\n\t\t\tfollowed by a restart'
                    ' of the system)',
            'summary':'Reboot operations for the current logged in server.',
            'aliases': [],
            'auxcommands': []
        }
        self.cmdbase = None
        self.rdmc = None
        self.auxcommands = dict()

    def run(self, line, help_disp=False):
        """ Main reboot worker function

        :param line: string of arguments passed in
        :type line: str.
        """
        if help_disp:
            self.parser.print_help()
            return ReturnCodes.SUCCESS
        try:
            (options, args) = self.rdmc.rdmc_parse_arglist(self, line)
        except (InvalidCommandLineErrorOPTS, SystemExit):
            if ("-h" in line) or ("--help" in line):
                # self.rdmc.ui.printer(self.ident['usage'])
                return ReturnCodes.SUCCESS
            else:
                raise InvalidCommandLineErrorOPTS("")

        if len(args) < 2:
            self.rebootvalidation(options)
        else:
            raise InvalidCommandLineError("Invalid number of parameters."
                                          " Reboot takes a maximum of 1 parameter.")

        if not args:
            self.rdmc.ui.warn('\nAfter the server is rebooted the session will be terminated.'
                              '\nPlease wait for the server to boot completely before logging in '
                              'again.\nRebooting server in 3 seconds...\n')
            time.sleep(3)
        else:
            self.printreboothelp(args[0])
            time.sleep(3)

        select = "ComputerSystem."
        results = self.rdmc.app.select(selector=select)
        oemlist = ['press', 'pressandhold', 'coldboot']

        try:
            results = results[0]
        except:
            pass

        if results:
            put_path = results.resp.request.path
        else:
            raise NoContentsFoundForOperationError("Unable to find %s" % select)

        if args and args[0].lower() in oemlist:
            bodydict = results.resp.dict['Oem'][self.rdmc.app.typepath.defs.oemhp]

            if args[0].lower() == 'coldboot':
                resettype = 'SystemReset'
            else:
                resettype = 'PowerButton'
        else:
            bodydict = results.resp.dict
            resettype = 'Reset'

        try:
            for item in bodydict['Actions']:
                if resettype in item:
                    if self.rdmc.app.typepath.defs.isgen10:
                        action = item.split('#')[-1]
                    else:
                        action = resettype

                    put_path = bodydict['Actions'][item]['target']
                    break
        except:
            action = resettype

        if args and not args[0].lower() == "forcerestart":
            if args[0].lower() == "on":
                body = {"Action": action, "ResetType": "On"}
            elif args[0].lower() == "forceoff":
                body = {"Action": action, "ResetType": "ForceOff"}
            elif args[0].lower() == "nmi":
                body = {"Action": action, "ResetType": "Nmi"}
            elif args[0].lower() == "pushpowerbutton":
                body = {"Action": action, "ResetType": "PushPowerButton"}
            elif args[0].lower() == "press":
                body = {"Action": action, "PushType": "Press"}
            elif args[0].lower() == "pressandhold":
                body = {"Action": action, "PushType": "PressAndHold"}
            elif args[0].lower() == "coldboot":
                body = {"Action": action, "ResetType": "ColdBoot"}
        else:
            body = {"Action": action, "ResetType": "ForceRestart"}

        if options.confirm is True:
            count = 0
            while True:
                count = count+1
                confirmation = input("Rebooting system, type yes to confirm or no to abort:")
                if confirmation.lower() in ('no', 'n') or count > 3:
                    self.rdmc.ui.printer('Aborting reboot.\n')
                    return ReturnCodes.SUCCESS
                elif confirmation.lower() in ('yes', 'y'):
                    break

        self.rdmc.app.post_handler(put_path, body)

        self.cmdbase.logout_routine(self, options)
        #Return code
        return ReturnCodes.SUCCESS

    def printreboothelp(self, flag):
        """helper print function for reboot function

        :param flag: command line option
        :type flag: str
        """
        if flag.upper() == "ON":
            self.rdmc.ui.warn('\nThe server is powering on. Note, the current session will be '
                              'terminated.\nPlease wait for the server to boot completely before logging in '
                              'again.\nTurning on the server in 3 seconds...\n')
        elif flag.upper() == "FORCEOFF":
            self.rdmc.ui.warn('\nThe server is powering off. Note, the current session will be '
                              'terminated.\nPlease wait for the server to power off completely before logging '
                              'in again.\nPowering off the server in 3 seconds...\n')
        elif flag.upper() == "FORCERESTART":
            self.rdmc.ui.warn('\nForcing a server restart. Note, the current session will be '
                              'terminated.\nPlease wait for the server to boot completely before logging in '
                              'again.\nRebooting the server in 3 seconds...\n')
        elif flag.upper() == "NMI":
            self.rdmc.ui.warn('\nA non-maskable interrupt will be issued to this server. Note, the '
                              'current session will be terminated.\nIssuing interrupt in 3 seconds...\n')
        elif flag.upper() == "PUSHPOWERBUTTON" or flag.upper() == "PRESS":
            self.rdmc.ui.warn('\nThe server power button will be virtually pushed; the reaction '
                              'will be dependent on the current system power and boot state. Note the current '
                              'session will be terminated.\nVirtual push in 3 seconds...\n')
        elif flag.upper() == "COLDBOOT":
            self.rdmc.ui.warn('\nThe server will be cold boot, power cycled. Note, the current '
                              'session will be terminated.\nPlease wait for the server to boot completely '
                              'before logging in again.\nCold Booting server in 3 seconds...\n')
        elif flag.upper() == "PRESSANDHOLD":
            self.rdmc.ui.warn('\nThe server will be forcefully powered off. Note, the current '
                              'session will be terminated.\nPlease wait for the server to power off '
                              'completely before logging in again.\nPressing and holding the power button in '
                              '3 seconds...\n')
        else:
            raise InvalidCommandLineError("Invalid parameter: '%s'. Please run"\
                                                        " 'help reboot' for parameters." % flag)

    def rebootvalidation(self, options):
        """ reboot method validation function

        :param options: command line options
        :type options: list.
        """
        self.cmdbase.login_select_validation(self, options)

    def definearguments(self, customparser):
        """ Wrapper function for new command main function

        :param customparser: command line input
        :type customparser: parser.
        """
        if not customparser:
            return

        self.cmdbase.add_login_arguments_group(customparser)

        customparser.add_argument(
            '--confirm',
            dest='confirm',
            action="store_true",
            help="Optionally include to request user confirmation for reboot.",
            default=False,
        )
