#!/usr/bin/python

# -*- coding: utf-8 -*-

# Authors:

#   Thomas Woerner <twoerner@redhat.com>

#

# Copyright (C) 2019 Red Hat

# see file 'COPYING' for use and warranty information

#

# This program is free software; you can redistribute it and/or modify

# it under the terms of the GNU General Public License as published by

# the Free Software Foundation, either version 3 of the License, or

# (at your option) any later version.

#

# This program is distributed in the hope that it will be useful,

# but WITHOUT ANY WARRANTY; without even the implied warranty of

# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

# GNU General Public License for more details.

#

# You should have received a copy of the GNU General Public License

# along with this program.  If not, see <http://www.gnu.org/licenses/>.

ANSIBLE_METADATA = {

    "metadata_version": "1.0",

    "supported_by": "community",

    "status": ["preview"],

}

DOCUMENTATION = """

---

module: ipahbacsvc

short description: Manage FreeIPA HBAC Services

description: Manage FreeIPA HBAC Services

options:

  ipaadmin_principal:

    description: The admin principal

    default: admin

  ipaadmin_password:

    description: The admin password

    required: false

  name:

    description: The group name

    required: false

    aliases: ["cn", "service"]

  description:

    description: The HBAC Service description

    required: false

  state:

    description: State to ensure

    default: present

    choices: ["present", "absent"]

author:

    - Thomas Woerner

"""

EXAMPLES = """

# Ensure HBAC Service for http is present

- ipahbacsvc:

    ipaadmin_password: SomeADMINpassword

    name: http

    description: Web service

# Ensure HBAC Service for tftp is absent

- ipahbacsvc:

    ipaadmin_password: SomeADMINpassword

    name: tftp

    state: absent

"""

RETURN = """

"""

from ansible.module_utils.basic import AnsibleModule

from ansible.module_utils._text import to_text

from ansible.module_utils.ansible_freeipa_module import temp_kinit, \

    temp_kdestroy, valid_creds, api_connect, api_command, compare_args_ipa

def find_hbacsvc(module, name):

    _args = {

        "all": True,

        "cn": to_text(name),

    }

    _result = api_command(module, "hbacsvc_find", to_text(name), _args)

    if len(_result["result"]) > 1:

        module.fail_json(

            msg="There is more than one hbacsvc '%s'" % (name))

    elif len(_result["result"]) == 1:

        return _result["result"][0]

    else:

        return None

def gen_args(description):

    _args = {}

    if description is not None:

        _args["description"] = to_text(description)

    return _args

def main():

    ansible_module = AnsibleModule(

        argument_spec=dict(

            # general

            ipaadmin_principal=dict(type="str", default="admin"),

            ipaadmin_password=dict(type="str", required=False, no_log=True),

            name=dict(type="list", aliases=["cn", "service"], default=None,

                      required=True),

            # present

            description=dict(type="str", default=None),

            # state

            state=dict(type="str", default="present",

                       choices=["present", "absent"]),

        ),

        supports_check_mode=True,

    )

    ansible_module._ansible_debug = True

    # Get parameters

    # general

    ipaadmin_principal = ansible_module.params.get("ipaadmin_principal")

    ipaadmin_password = ansible_module.params.get("ipaadmin_password")

    names = ansible_module.params.get("name")

    # present

    description = ansible_module.params.get("description")

    # state

    state = ansible_module.params.get("state")

    # Check parameters

    if state == "present":

        if len(names) != 1:

            ansible_module.fail_json(

                msg="Only one hbacsvc can be set at a time.")

    if state == "absent":

        if len(names) < 1:

            ansible_module.fail_json(

                msg="No name given.")

        invalid = ["description"]

        for x in invalid:

            if vars()[x] is not None:

                ansible_module.fail_json(

                    msg="Argument '%s' can not be used with state '%s'" %

                    (x, state))

    # Init

    changed = False

    exit_args = {}

    ccache_dir = None

    ccache_name = None

    try:

        if not valid_creds(ansible_module, ipaadmin_principal):

            ccache_dir, ccache_name = temp_kinit(ipaadmin_principal,

                                                 ipaadmin_password)

        api_connect()

        commands = []

        for name in names:

            # Try to find hbacsvc

            res_find = find_hbacsvc(ansible_module, name)

            # Create command

            if state == "present":

                # Generate args

                args = gen_args(description)

                # Found the hbacsvc

                if res_find is not None:

                    # For all settings is args, check if there are

                    # different settings in the find result.

                    # If yes: modify

                    if not compare_args_ipa(ansible_module, args,

                                            res_find):

                        commands.append([name, "hbacsvc_mod", args])

                else:

                    commands.append([name, "hbacsvc_add", args])

            elif state == "absent":

                if res_find is not None:

                    commands.append([name, "hbacsvc_del", {}])

            else:

                ansible_module.fail_json(msg="Unkown state '%s'" % state)

        # Execute commands

        for name, command, args in commands:

            try:

                api_command(ansible_module, command, to_text(name), args)

                changed = True

            except Exception as e:

                ansible_module.fail_json(msg="%s: %s: %s" % (command, name,

                                                             str(e)))

    except Exception as e:

        ansible_module.fail_json(msg=str(e))

    finally:

        temp_kdestroy(ccache_dir, ccache_name)

    # Done

    ansible_module.exit_json(changed=changed, **exit_args)

if __name__ == "__main__":

    main()