#!/usr/bin/python
# -*- coding: utf-8 -*-
from __future__ import (absolute_import, division, print_function)
__metaclass__ = type
#
# Copyright (C) 2017 Lenovo, Inc.
#
# This file is part of Ansible
#
# Ansible 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, either version 3 of the License, or
# (at your option) any later version.
#
# Ansible is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with Ansible.  If not, see <http://www.gnu.org/licenses/>.
#
# Module to Reset to factory settings of Lenovo Switches
# Lenovo Networking
#

ANSIBLE_METADATA = {'metadata_version': '1.1',
                    'status': ['preview'],
                    'supported_by': 'community'}


DOCUMENTATION = '''
---
module: cnos_factory
author: "Anil Kumar Muraleedharan (@amuraleedhar)"
short_description: Reset the switch startup configuration to default (factory)
 on devices running Lenovo CNOS.
description:
    - This module allows you to reset a switch's startup configuration. The
     method provides a way to reset the startup configuration to its factory
     settings. This is helpful when you want to move the switch to another
     topology as a new network device. This module uses SSH to manage network
     device configuration. The result of the operation can be viewed in results
     directory.
     For more information about this module and customizing it usage
     for your use cases, please visit
     U(http://systemx.lenovofiles.com/help/index.jsp?topic=%2Fcom.lenovo.switchmgt.ansible.doc%2Fcnos_factory.html)
version_added: "2.3"
extends_documentation_fragment: cnos
options: {}

'''
EXAMPLES = '''
Tasks : The following are examples of using the module cnos_reload. These are
 written in the main.yml file of the tasks directory.
---
- name: Test Reset to factory
  cnos_factory:
      host: "{{ inventory_hostname }}"
      username: "{{ hostvars[inventory_hostname]['ansible_ssh_user'] }}"
      password: "{{ hostvars[inventory_hostname]['ansible_ssh_pass'] }}"
      deviceType: "{{ hostvars[inventory_hostname]['deviceType'] }}"
      outputfile: "./results/test_factory_{{ inventory_hostname }}_output.txt"

'''
RETURN = '''
msg:
  description: Success or failure message
  returned: always
  type: string
  sample: "Switch Startup Config is Reset to factory settings"
'''

import sys
import time
import socket
import array
import json
import time
import re
try:
    from ansible.module_utils.network.cnos import cnos
    HAS_LIB = True
except:
    HAS_LIB = False
from ansible.module_utils.basic import AnsibleModule
from collections import defaultdict


def main():
    module = AnsibleModule(
        argument_spec=dict(
            outputfile=dict(required=True),
            host=dict(required=True),
            username=dict(required=True),
            password=dict(required=True, no_log=True),
            enablePassword=dict(required=False, no_log=True),
            deviceType=dict(required=True),),
        supports_check_mode=False)

    command = 'write erase'
    outputfile = module.params['outputfile']
    output = ''
    cmd = [{'command': command, 'prompt': '[n]', 'answer': 'y'}]
    output = output + str(cnos.run_cnos_commands(module, cmd))

    # Save it into the file
    file = open(outputfile, "a")
    file.write(output)
    file.close()

    errorMsg = cnos.checkOutputForError(output)
    if(errorMsg is None):
        module.exit_json(changed=True,
                         msg="Switch Startup Config is Reset to Factory settings")
    else:
        module.fail_json(msg=errorMsg)


if __name__ == '__main__':
    main()
