#!/usr/bin/python
# Copyright (c) 2017, Ansible Project
# GNU General Public License v3.0+ (see LICENSES/GPL-3.0-or-later.txt or https://www.gnu.org/licenses/gpl-3.0.txt)
# SPDX-License-Identifier: GPL-3.0-or-later

from __future__ import annotations

DOCUMENTATION = r"""
module: ipa_sudocmd
author: Thomas Krahn (@Nosmoht)
short_description: Manage FreeIPA sudo command
description:
  - Add, modify or delete sudo command within FreeIPA server using FreeIPA API.
attributes:
  check_mode:
    support: full
  diff_mode:
    support: none
options:
  sudocmd:
    description:
      - Sudo command.
    aliases: ['name']
    required: true
    type: str
  description:
    description:
      - A description of this command.
    type: str
  state:
    description: State to ensure.
    default: present
    choices: ['absent', 'disabled', 'enabled', 'present']
    type: str
extends_documentation_fragment:
  - community.general.ipa.documentation
  - community.general.ipa.connection_notes
  - community.general.attributes
"""

EXAMPLES = r"""
- name: Ensure sudo command exists
  community.general.ipa_sudocmd:
    name: su
    description: Allow to run su via sudo
    ipa_host: ipa.example.com
    ipa_user: admin
    ipa_pass: topsecret

- name: Ensure sudo command does not exist
  community.general.ipa_sudocmd:
    name: su
    state: absent
    ipa_host: ipa.example.com
    ipa_user: admin
    ipa_pass: topsecret
"""

RETURN = r"""
sudocmd:
  description: Sudo command as return from IPA API.
  returned: always
  type: dict
"""

import traceback

from ansible.module_utils.basic import AnsibleModule
from ansible_collections.community.general.plugins.module_utils.ipa import IPAClient, ipa_argument_spec
from ansible.module_utils.common.text.converters import to_native


class SudoCmdIPAClient(IPAClient):
    def __init__(self, module, host, port, protocol):
        super().__init__(module, host, port, protocol)

    def sudocmd_find(self, name):
        return self._post_json(method="sudocmd_find", name=None, item={"all": True, "sudocmd": name})

    def sudocmd_add(self, name, item):
        return self._post_json(method="sudocmd_add", name=name, item=item)

    def sudocmd_mod(self, name, item):
        return self._post_json(method="sudocmd_mod", name=name, item=item)

    def sudocmd_del(self, name):
        return self._post_json(method="sudocmd_del", name=name)


def get_sudocmd_dict(description=None):
    data = {}
    if description is not None:
        data["description"] = description
    return data


def get_sudocmd_diff(client, ipa_sudocmd, module_sudocmd):
    return client.get_diff(ipa_data=ipa_sudocmd, module_data=module_sudocmd)


def ensure(module, client):
    name = module.params["sudocmd"]
    state = module.params["state"]

    module_sudocmd = get_sudocmd_dict(description=module.params["description"])
    ipa_sudocmd = client.sudocmd_find(name=name)

    changed = False
    if state == "present":
        if not ipa_sudocmd:
            changed = True
            if not module.check_mode:
                client.sudocmd_add(name=name, item=module_sudocmd)
        else:
            diff = get_sudocmd_diff(client, ipa_sudocmd, module_sudocmd)
            if len(diff) > 0:
                changed = True
                if not module.check_mode:
                    data = {}
                    for key in diff:
                        data[key] = module_sudocmd.get(key)
                    client.sudocmd_mod(name=name, item=data)
    else:
        if ipa_sudocmd:
            changed = True
            if not module.check_mode:
                client.sudocmd_del(name=name)

    return changed, client.sudocmd_find(name=name)


def main():
    argument_spec = ipa_argument_spec()
    argument_spec.update(
        description=dict(type="str"),
        state=dict(type="str", default="present", choices=["present", "absent", "enabled", "disabled"]),
        sudocmd=dict(type="str", required=True, aliases=["name"]),
    )

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

    client = SudoCmdIPAClient(
        module=module,
        host=module.params["ipa_host"],
        port=module.params["ipa_port"],
        protocol=module.params["ipa_prot"],
    )
    try:
        client.login(username=module.params["ipa_user"], password=module.params["ipa_pass"])
        changed, sudocmd = ensure(module, client)
        module.exit_json(changed=changed, sudocmd=sudocmd)
    except Exception as e:
        module.fail_json(msg=to_native(e), exception=traceback.format_exc())


if __name__ == "__main__":
    main()