# Copyright 2020, Red Hat, Inc.
#
# 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.

from __future__ import absolute_import, division, print_function
__metaclass__ = type

from ansible.module_utils.basic import AnsibleModule
try:
    from ansible.module_utils.ca_common import exit_module, generate_ceph_cmd, is_containerized
except ImportError:
    from module_utils.ca_common import exit_module, generate_ceph_cmd, is_containerized
import datetime


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

DOCUMENTATION = '''
---
module: ceph_mgr_module
short_description: Manage Ceph MGR module
version_added: "2.8"
description:
    - Manage Ceph MGR module
options:
    name:
        description:
            - name of the ceph MGR module.
        required: true
    cluster:
        description:
            - The ceph cluster name.
        required: false
        default: ceph
    state:
        description:
            - If 'enable' is used, the module enables the MGR module.
            If 'absent' is used, the module disables the MGR module.
        required: false
        choices: ['enable', 'disable']
        default: enable
author:
    - Dimitri Savineau <dsavinea@redhat.com>
'''

EXAMPLES = '''
- name: enable dashboard mgr module
  ceph_mgr_module:
    name: dashboard
    state: enable

- name: disable multiple mgr modules
  ceph_mgr_module:
    name: '{{ item }}'
    state: disable
  loop:
    - 'dashboard'
    - 'prometheus'
'''

RETURN = '''#  '''


def main():
    module = AnsibleModule(
        argument_spec=dict(
            name=dict(type='str', required=True),
            cluster=dict(type='str', required=False, default='ceph'),
            state=dict(type='str', required=False, default='enable', choices=['enable', 'disable']),
        ),
        supports_check_mode=True,
    )

    name = module.params.get('name')
    cluster = module.params.get('cluster')
    state = module.params.get('state')

    startd = datetime.datetime.now()

    container_image = is_containerized()

    cmd = generate_ceph_cmd(['mgr', 'module'], [state, name], cluster=cluster, container_image=container_image)

    if module.check_mode:
        exit_module(
            module=module,
            out='',
            rc=0,
            cmd=cmd,
            err='',
            startd=startd,
            changed=False
        )
    else:
        rc, out, err = module.run_command(cmd)
        if out == "module '{}' is already enabled".format(name):
            changed = False
        else:
            changed = True
        exit_module(
            module=module,
            out=out,
            rc=rc,
            cmd=cmd,
            err=err,
            startd=startd,
            changed=changed
        )


if __name__ == '__main__':
    main()