#!/usr/bin/python
# -*- coding: utf-8 -*-
# Copyright (c) 2018 OpenStack Foundation
# 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.

import yaml

from ansible.module_utils import tripleo_common_utils as tc
from ansible.module_utils.basic import AnsibleModule
from ansible.module_utils.openstack import openstack_full_argument_spec
from ansible.module_utils.openstack import openstack_module_kwargs
from ansible.module_utils.openstack import openstack_cloud_from_module

from tripleo_common.utils import overcloudrc as rc_utils

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

DOCUMENTATION = '''
---
module: tripleo_generate_overcloudrc

short_description: Generate overcloudrc

version_added: "2.8"

description:
    - "Generate overcloudrc."

options:
    container:
        description:
            - Overcloud plan container name
        type: str
        default: overcloud
    no_proxy:
        description:
            - Comma-separated string of hosts that shouldn't be proxied
        type: str
        default: ''
author:
    - Rabi Mishra (@ramishra)
requirements: ["openstacksdk", "tripleo-common"]
'''

EXAMPLES = '''
- name: Generate overcloudrc
  tripleo_generate_overcloudrc:
      container: overcloud
      no_proxy: 'myhost'
'''

RETURN = '''
overcloudrc:
    description: overcloudrc string
    returned: always
    type: str
    no_log: true
    sample:
# Clear any old environment that may conflict.
for key in $( set | awk '{FS="="}  /^OS_/ {print $1}' ); do unset $key ; done
export OS_USERNAME=admin
export OS_PROJECT_NAME=admin
export OS_USER_DOMAIN_NAME=Default
export OS_PROJECT_DOMAIN_NAME=Default
export OS_NO_CACHE=True
export OS_CLOUDNAME=overcloud-0
export no_proxy=,10.20.1.38,192.168.24.14
export PYTHONWARNINGS='ignore:Certificate has no, ignore:A true SSLContext object is not available'
export OS_AUTH_TYPE=password
export OS_PASSWORD=xxxxxxxxxx
export OS_AUTH_URL=http://x.x.x.x:5000
export OS_IDENTITY_API_VERSION=3
export OS_COMPUTE_API_VERSION=2.latest
export OS_IMAGE_API_VERSION=2
export OS_VOLUME_API_VERSION=3
export OS_REGION_NAME=regionOne
'''


def run_module():
    result = dict(
        success=False,
        error="",
        overcloudrc=""
    )

    argument_spec = openstack_full_argument_spec(
        **yaml.safe_load(DOCUMENTATION)['options']
    )

    module = AnsibleModule(
        argument_spec,
        supports_check_mode=True,
        **openstack_module_kwargs()
    )

    try:
        container = module.params.get('container')
        no_proxy = module.params.get('no_proxy')

        _, conn = openstack_cloud_from_module(module)
        tripleo = tc.TripleOCommon(session=conn.session)

        # if the user is working with this module in only check mode we do not
        # want to make any changes to the environment, just return the current
        # state with no modifications
        if module.check_mode:
            module.exit_json(**result)
        swift = tripleo.get_object_client()
        heat = tripleo.get_orchestration_client()

        overcloudrc = rc_utils.create_overcloudrc(swift, heat,
                                                  container, no_proxy)
        result['overcloudrc'] = overcloudrc['overcloudrc']
        result['success'] = True
    except Exception as err:
        result['error'] = str(err)
        result['msg'] = ("Error generating overcloudrc for plan %s: %s" % (
            container, err))
        module.fail_json(**result)

    # in the event of a successful module execution, you will want to
    # simple AnsibleModule.exit_json(), passing the key/value results
    module.exit_json(**result)


def main():
    run_module()


if __name__ == '__main__':
    main()