#!/usr/bin/python
# -*- coding: utf-8 -*-

# Copyright: (c) <year>, <Name> (@<github id>)
# GNU General Public License v3.0+ (see LICENSE or https://www.gnu.org/licenses/gpl-3.0.txt)

from __future__ import absolute_import, division, print_function
__metaclass__ = type

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

DOCUMENTATION = r'''
---
module: aci_dhcp_relay
short_description: Manage DHCP relay policies.
description:
- Manage DHCP relay policy (dhcpRelayP) configuration on Cisco ACI fabrics.
options:
  tenant:
    description:
    - Name of an existing tenant.
    type: str
  name:
    description:
    - Name of the DHCP relay policy
    type: str
    aliases: [ relay_policy ]
  description:
    description:
    - Description of the relay policy
    type: str
  state:
    description:
    - Use C(present) or C(absent) for adding or removing.
    - Use C(query) for listing an object or multiple objects.
    type: str
    choices: [ absent, present, query ]
    default: present
extends_documentation_fragment:
- cisco.aci.aci

notes:
- The C(tenant) must exist before using this module in your playbook.
  The M(cisco.aci.aci_tenant) modules can be used for this.
seealso:
- name: APIC Management Information Model reference
  description: More information about the internal APIC class B(dhcpRelayP).
  link: https://developer.cisco.com/docs/apic-mim-ref/
author:
- Tim Cragg (@timcragg)
'''

EXAMPLES = r'''
- name: Add a new DHCP relay policy
  cisco.aci.aci_dhcp_relay:
    host: apic
    username: admin
    password: SomeSecretPassword
    tenant: Auto-Demo
    name: my_dhcp_relay
    description: via Ansible
    state: present
  delegate_to: localhost

- name: Remove a DHCP relay policy
  cisco.aci.aci_dhcp_relay:
    host: apic
    username: admin
    password: SomeSecretPassword
    tenant: Auto-Demo
    name: my_dhcp_relay
    state: absent
  delegate_to: localhost

- name: Query a DHCP relay policy
  cisco.aci.aci_dhcp_relay:
    host: apic
    username: admin
    password: SomeSecretPassword
    tenant: Auto-Demo
    name: my_dhcp_relay
    state: query
  delegate_to: localhost
  register: query_result

- name: Query all DHCP relay policies in a specific tenant
  cisco.aci.aci_dhcp_relay:
    host: apic
    username: admin
    password: SomeSecretPassword
    tenant: Auto-Demo
    state: query
  delegate_to: localhost
  register: query_result
'''

RETURN = r'''
   current:
     description: The existing configuration from the APIC after the module has finished
     returned: success
     type: list
     sample:
       [
           {
               "fvTenant": {
                   "attributes": {
                       "descr": "Production environment",
                       "dn": "uni/tn-production",
                       "name": "production",
                       "nameAlias": "",
                       "ownerKey": "",
                       "ownerTag": ""
                   }
               }
           }
       ]
   error:
     description: The error information as returned from the APIC
     returned: failure
     type: dict
     sample:
       {
           "code": "122",
           "text": "unknown managed object class foo"
       }
   raw:
     description: The raw output returned by the APIC REST API (xml or json)
     returned: parse error
     type: str
     sample: '<?xml version="1.0" encoding="UTF-8"?><imdata totalCount="1"><error code="122" text="unknown managed object class "/></imdata>'
   sent:
     description: The actual/minimal configuration pushed to the APIC
     returned: info
     type: list
     sample:
       {
           "fvTenant": {
               "attributes": {
                   "descr": "Production environment"
               }
           }
       }
   previous:
     description: The original configuration from the APIC before the module has started
     returned: info
     type: list
     sample:
       [
           {
               "fvTenant": {
                   "attributes": {
                       "descr": "Production",
                       "dn": "uni/tn-production",
                       "name": "production",
                       "nameAlias": "",
                       "ownerKey": "",
                       "ownerTag": ""
                   }
               }
           }
       ]
   proposed:
     description: The assembled configuration from the user-provided parameters
     returned: info
     type: dict
     sample:
       {
           "fvTenant": {
               "attributes": {
                   "descr": "Production environment",
                   "name": "production"
               }
           }
       }
   filter_string:
     description: The filter string used for the request
     returned: failure or debug
     type: str
     sample: ?rsp-prop-include=config-only
   method:
     description: The HTTP method used for the request to the APIC
     returned: failure or debug
     type: str
     sample: POST
   response:
     description: The HTTP response from the APIC
     returned: failure or debug
     type: str
     sample: OK (30 bytes)
   status:
     description: The HTTP status from the APIC
     returned: failure or debug
     type: int
     sample: 200
   url:
     description: The HTTP url used for the request to the APIC
     returned: failure or debug
     type: str
     sample: https://10.11.12.13/api/mo/uni/tn-production.json
   '''

from ansible.module_utils.basic import AnsibleModule
from ansible_collections.cisco.aci.plugins.module_utils.aci import ACIModule, aci_argument_spec


def main():
    argument_spec = aci_argument_spec()
    argument_spec.update(
        name=dict(type='str', aliases=['relay_policy']),
        description=dict(type='str'),
        state=dict(type='str', default='present', choices=['absent', 'present', 'query']),
        tenant=dict(type='str'),
    )

    module = AnsibleModule(
        argument_spec=argument_spec,
        supports_check_mode=True,
        required_if=[
            ['state', 'absent', ['name', 'tenant']],
            ['state', 'present', ['name', 'tenant']],
        ],
    )

    name = module.params.get('name')
    description = module.params.get('description')
    state = module.params.get('state')
    tenant = module.params.get('tenant')
    child_classes = ['dhcpRsProv']

    aci = ACIModule(module)
    aci.construct_url(
        root_class=dict(
            aci_class='fvTenant',
            aci_rn='tn-{0}'.format(tenant),
            module_object=tenant,
            target_filter={'name': tenant},
        ),
        subclass_1=dict(
            aci_class='dhcpRelayP',
            aci_rn='relayp-{0}'.format(name),
            module_object=name,
            target_filter={'name': name},
        ),
        child_classes=child_classes,
    )

    aci.get_existing()

    if state == 'present':
        aci.payload(
            aci_class='dhcpRelayP',
            class_config=dict(
                name=name,
                descr=description,
                owner='tenant'
            ),
        )

        aci.get_diff(aci_class='dhcpRelayP')

        aci.post_config()

    elif state == 'absent':
        aci.delete_config()

    aci.exit_json()


if __name__ == "__main__":
    main()