###
# 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 -*-
""" RawPost Command for rdmc """

import re
import sys
import json

from collections import OrderedDict

from argparse import ArgumentParser

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

class RawPostCommand():
    """ Raw form of the post command """
    def __init__(self):
        self.ident = {
            'name':'rawpost',
            'usage': None,
            'description':'Run to send a post from '
                    'the data in the input file.\n\tMultiple POSTs can be performed in sequence by'
                    ' \n\tadding more path/body key/value pairs.\n'
                    '\n\texample: rawpost rawpost.'
                    'txt\n\n\tExample input file:\n\t{\n\t    "/'
                    'redfish/v1/systems/(system ID)/Actions/ComputerSystem.'
                    'Reset":\n\t    {\n\t        "ResetType": '
                    '"ForceRestart"\n\t    }\n\t}',
            'summary':'Raw form of the POST command.',
            'aliases': [],
            'auxcommands': []
        }
        self.cmdbase = None
        self.rdmc = None
        self.auxcommands = dict()

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

        :param line: command line input
        :type line: string.
        """
        if help_disp:
            self.parser.print_help()
            return ReturnCodes.SUCCESS
        try:
            (options, _) = 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 = {}
        results = []

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

        contentsholder = None

        try:
            with open(options.path, 'r') as _if:
                contentsholder = json.loads(_if.read(), object_pairs_hook=OrderedDict)
        except IOError:
            raise InvalidFileInputError("File '%s' doesn't exist. " \
                                "Please create file by running 'save' command." % options.path)
        except (ValueError):
            raise InvalidFileFormattingError("Input file '%s' was not " \
                                                            "formatted properly." % options.path)
        if options.encode:
            if "body" in contentsholder and "UserName" in contentsholder["body"] and \
                        "Password" in contentsholder["body"] and \
                        len(list(contentsholder["body"].keys())) == 2:
                encobj = Encryption()
                contentsholder["body"]["UserName"] = encobj.decode_credentials(
                    contentsholder["body"]["UserName"])
                contentsholder["body"]["Password"] = encobj.decode_credentials(
                    contentsholder["body"]["Password"])

        if options.headers:
            extraheaders = options.headers.split(',')
            for item in extraheaders:
                header = item.split(':')

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

        if "path" in contentsholder and "body" in contentsholder:
            results.append(self.rdmc.app.post_handler(contentsholder["path"],
                                                      contentsholder["body"], headers=headers,
                                                      silent=options.silent, service=options.service))
        elif all([re.match("^\/(\S+\/?)+$", key) for key in contentsholder]):
            for path, body in contentsholder.items():
                results.append(self.rdmc.app.post_handler(path,
                                                          body, headers=headers,
                                                          silent=options.silent, service=options.service))
        else:
            raise InvalidFileFormattingError("Input file '%s' was not "\
                                             "formatted properly." % options.path)
        returnresponse = False

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

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

                if options.response:
                    if isinstance(result.ori, bytes):
                        self.rdmc.ui.printer(result.ori.decode('utf-8') + "\n")
                    else:
                        self.rdmc.ui.printer(result.ori + "\n")

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

    def postvalidation(self, options):
        """ Raw post validation function

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

    def sessionvalidation(self, options):
        """ Raw post 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.redfishinst.base_url:
                url = self.rdmc.app.redfishinst.base_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="Path to the JSON file containing the data to be patched.",
        )
        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
        )
