#!/usr/bin/python
#
# (c) Quentin Stafford-Fraser 2015
# GNU General Public License v3.0+ (see COPYING or https://www.gnu.org/licenses/gpl-3.0.txt)
#
# Create Webfaction domains and subdomains using Ansible and the Webfaction API

from __future__ import absolute_import, division, print_function
__metaclass__ = type


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


DOCUMENTATION = '''
---
module: webfaction_domain
short_description: Add or remove domains and subdomains on Webfaction
description:
    - Add or remove domains or subdomains on a Webfaction host. Further documentation at https://github.com/quentinsf/ansible-webfaction.
author: Quentin Stafford-Fraser (@quentinsf)
version_added: "2.0"
notes:
    - If you are I(deleting) domains by using C(state=absent), then note that if you specify subdomains, just those particular subdomains will be deleted.
      If you don't specify subdomains, the domain will be deleted.
    - >
      You can run playbooks that use this on a local machine, or on a Webfaction host, or elsewhere, since the scripts use the remote webfaction API.
      The location is not important. However, running them on multiple hosts I(simultaneously) is best avoided. If you don't specify I(localhost) as
      your host, you may want to add C(serial: 1) to the plays.
    - See `the webfaction API <https://docs.webfaction.com/xmlrpc-api/>`_ for more info.

options:

    name:
        description:
            - The name of the domain
        required: true

    state:
        description:
            - Whether the domain should exist
        choices: ['present', 'absent']
        default: "present"

    subdomains:
        description:
            - Any subdomains to create.
        default: []

    login_name:
        description:
            - The webfaction account to use
        required: true

    login_password:
        description:
            - The webfaction password to use
        required: true
'''

EXAMPLES = '''
  - name: Create a test domain
    webfaction_domain:
      name: mydomain.com
      state: present
      subdomains:
       - www
       - blog
      login_name: "{{webfaction_user}}"
      login_password: "{{webfaction_passwd}}"

  - name: Delete test domain and any subdomains
    webfaction_domain:
      name: mydomain.com
      state: absent
      login_name: "{{webfaction_user}}"
      login_password: "{{webfaction_passwd}}"

'''

from ansible.module_utils.basic import AnsibleModule
from ansible.module_utils.six.moves import xmlrpc_client


webfaction = xmlrpc_client.ServerProxy('https://api.webfaction.com/')


def main():

    module = AnsibleModule(
        argument_spec=dict(
            name=dict(required=True),
            state=dict(required=False, choices=['present', 'absent'], default='present'),
            subdomains=dict(required=False, default=[], type='list'),
            login_name=dict(required=True),
            login_password=dict(required=True, no_log=True),
        ),
        supports_check_mode=True
    )
    domain_name = module.params['name']
    domain_state = module.params['state']
    domain_subdomains = module.params['subdomains']

    session_id, account = webfaction.login(
        module.params['login_name'],
        module.params['login_password']
    )

    domain_list = webfaction.list_domains(session_id)
    domain_map = dict([(i['domain'], i) for i in domain_list])
    existing_domain = domain_map.get(domain_name)

    result = {}

    # Here's where the real stuff happens

    if domain_state == 'present':

        # Does an app with this name already exist?
        if existing_domain:

            if set(existing_domain['subdomains']) >= set(domain_subdomains):
                # If it exists with the right subdomains, we don't change anything.
                module.exit_json(
                    changed=False,
                )

        positional_args = [session_id, domain_name] + domain_subdomains

        if not module.check_mode:
            # If this isn't a dry run, create the app
            # print positional_args
            result.update(
                webfaction.create_domain(
                    *positional_args
                )
            )

    elif domain_state == 'absent':

        # If the app's already not there, nothing changed.
        if not existing_domain:
            module.exit_json(
                changed=False,
            )

        positional_args = [session_id, domain_name] + domain_subdomains

        if not module.check_mode:
            # If this isn't a dry run, delete the app
            result.update(
                webfaction.delete_domain(*positional_args)
            )

    else:
        module.fail_json(msg="Unknown state specified: {}".format(domain_state))

    module.exit_json(
        changed=True,
        result=result
    )


if __name__ == '__main__':
    main()
