###
# 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 -*-
""" RawDelete Command for rdmc """

import sys
import json

from argparse import ArgumentParser

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

class RawDeleteCommand():
    """ Raw form of the delete command """
    def __init__(self):
        self.ident = {
            'name':'rawdelete',
            'usage': None,
            'description':'Run to to delete data from'
                    ' the passed in path.\n\texample: rawdelete "/redfish/v1/'
                    'Sessions/(session ID)"',
            'summary':'Raw form of the DELETE command.',
            'aliases': [],
            'auxcommands': []
        }
        self.cmdbase = None
        self.rdmc = None
        self.auxcommands = dict()

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

        :param line: command line input
        :type line: string.
        """
        if help_disp:
            self.parser.print_help()
            return ReturnCodes.SUCCESS
        try:
            (options, args) = self.rdmc.rdmc_parse_arglist(self, line)
            if not line or line[0] == "help":
                self.parser.print_help()
                return ReturnCodes.SUCCESS
        except (InvalidCommandLineErrorOPTS, SystemExit):
            if ("-h" in line) or ("--help" in line):
                # self.rdmc.ui.printer(self.ident['usage'])
                return ReturnCodes.SUCCESS
            else:
                raise InvalidCommandLineErrorOPTS("")

        url = None
        headers = {}

        if hasattr(options, 'sessionid') and options.sessionid:
            url = self.sessionvalidation(options)
        else:
            self.deletevalidation(options)

        if options.path.startswith('"') and options.path.endswith('"'):
            options.path = options.path[1:-1]

        if options.expand:
            options.path = options.path + '?$expand=.'

        try:
            currentsess = self.rdmc.app.current_client.session_location
        except:
            currentsess = None

        if options.headers:
            extraheaders = options.headers.split(',')

            for item in extraheaders:
                header = item.split(':')

                try:
                    headers[header[0]] = header[1]
                except:
                    InvalidCommandLineError("Invalid format for --headers option.")

        if currentsess and (options.path in currentsess):
            self.rdmc.app.logout()
            self.rdmc.ui.printer("Your session has been terminated (deleted).\nPlease log "
                                 "back in if you wish to continue.\n")
        else:
            returnresponse = False

            if options.response or options.getheaders:
                returnresponse = True

            results = self.rdmc.app.delete_handler(options.path,
                                                   headers=headers, silent=options.silent, service=options.service)

            if returnresponse and results:
                if options.getheaders:
                    self.rdmc.ui.print_out_json(dict(results.getheaders()))

                if options.response:
                    sys.stdout.write(results.read)
            elif results.status == 404:
                return ReturnCodes.NO_CONTENTS_FOUND_FOR_OPERATION
            elif results.status != 200:
                return ReturnCodes.UI_CLI_USAGE_EXCEPTION

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

    def deletevalidation(self, options):
        """ Raw delete validation function

        :param options: command line options
        :type options: list.
        """
        self.rdmc.login_select_validation(self, options, skipbuild=True)

    def sessionvalidation(self, options):
        """ Raw delete session validation function

        :param options: command line options
        :type options: list.
        """

        url = None
        if options.user or options.password or options.url:
            if options.url:
                url = options.url
        else:
            if self.rdmc.app.config.get_url():
                url = self.rdmc.app.config.get_url()
        if url and not "https://" in url:
            url = "https://" + url

        return url

    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(
            'path',
            help="Uri on iLO to be deleted.",
        )
        customparser.add_argument(
            '--response',
            dest='response',
            action="store_true",
            help="Use this flag to return the iLO response body.",
            default=False
        )
        customparser.add_argument(
            '--getheaders',
            dest='getheaders',
            action="store_true",
            help="Use this flag to return the iLO response headers.",
            default=False
        )
        customparser.add_argument(
            '--headers',
            dest='headers',
            help="Use this flag to add extra headers to the request."\
            "\t\t\t\t\t Usage: --headers=HEADER:VALUE,HEADER:VALUE",
            default=None,
        )
        customparser.add_argument(
            '--silent',
            dest='silent',
            action="store_true",
            help="""Use this flag to silence responses""",
            default=False,
        )
        customparser.add_argument(
            '--service',
            dest='service',
            action="store_true",
            help="""Use this flag to enable service mode and increase the function speed""",
            default=False,
        )
        customparser.add_argument(
            '--expand',
            dest='expand',
            action="store_true",
            help="""Use this flag to expand the path specified using the """\
                                            """expand notation '?$expand=.'""",
            default=False,
        )
