#!/usr/bin/python
from __future__ import (absolute_import, division, print_function)
# Copyright: (c) 2022 Fortinet
# GNU General Public License v3.0+ (see LICENSE or https://www.gnu.org/licenses/gpl-3.0.txt)
#
# 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.

__metaclass__ = type

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

DOCUMENTATION = '''
---
module: fortios_firewall_region
short_description: Define region table in Fortinet's FortiOS and FortiGate.
description:
    - This module is able to configure a FortiGate or FortiOS (FOS) device by allowing the
      user to set and modify firewall feature and region category.
      Examples include all parameters and values need to be adjusted to datasources before usage.
      Tested with FOS v6.0.0
version_added: "2.0.0"
author:
    - Link Zheng (@chillancezen)
    - Jie Xue (@JieX19)
    - Hongbin Lu (@fgtdev-hblu)
    - Frank Shen (@frankshen01)
    - Miguel Angel Munoz (@mamunozgonzalez)
    - Nicolas Thomas (@thomnico)
notes:
    - Legacy fortiosapi has been deprecated, httpapi is the preferred way to run playbooks

requirements:
    - ansible>=2.9.0
options:
    access_token:
        description:
            - Token-based authentication.
              Generated from GUI of Fortigate.
        type: str
        required: false
    enable_log:
        description:
            - Enable/Disable logging for task.
        type: bool
        required: false
        default: false
    vdom:
        description:
            - Virtual domain, among those defined previously. A vdom is a
              virtual instance of the FortiGate that can be configured and
              used as a different unit.
        type: str
        default: root
    member_path:
        type: str
        description:
            - Member attribute path to operate on.
            - Delimited by a slash character if there are more than one attribute.
            - Parameter marked with member_path is legitimate for doing member operation.
    member_state:
        type: str
        description:
            - Add or delete a member under specified attribute path.
            - When member_state is specified, the state option is ignored.
        choices:
            - present
            - absent

    state:
        description:
            - Indicates whether to create or remove the object.
        type: str
        required: true
        choices:
            - present
            - absent
    firewall_region:
        description:
            - Define region table.
        default: null
        type: dict
        suboptions:
            city:
                description:
                    - City ID list.
                type: list
                elements: dict
                suboptions:
                    id:
                        description:
                            - City ID.
                        required: true
                        type: int
            id:
                description:
                    - Region ID.
                required: true
                type: int
            name:
                description:
                    - Region name.
                type: str
'''

EXAMPLES = '''
- hosts: fortigates
  collections:
    - fortinet.fortios
  connection: httpapi
  vars:
   vdom: "root"
   ansible_httpapi_use_ssl: yes
   ansible_httpapi_validate_certs: no
   ansible_httpapi_port: 443
  tasks:
  - name: Define region table.
    fortios_firewall_region:
      vdom:  "{{ vdom }}"
      state: "present"
      access_token: "<your_own_value>"
      firewall_region:
        city:
         -
            id:  "4"
        id:  "5"
        name: "default_name_6"

'''

RETURN = '''
build:
  description: Build number of the fortigate image
  returned: always
  type: str
  sample: '1547'
http_method:
  description: Last method used to provision the content into FortiGate
  returned: always
  type: str
  sample: 'PUT'
http_status:
  description: Last result given by FortiGate on last operation applied
  returned: always
  type: str
  sample: "200"
mkey:
  description: Master key (id) used in the last call to FortiGate
  returned: success
  type: str
  sample: "id"
name:
  description: Name of the table used to fulfill the request
  returned: always
  type: str
  sample: "urlfilter"
path:
  description: Path of the table used to fulfill the request
  returned: always
  type: str
  sample: "webfilter"
revision:
  description: Internal revision number
  returned: always
  type: str
  sample: "17.0.2.10658"
serial:
  description: Serial number of the unit
  returned: always
  type: str
  sample: "FGVMEVYYQT3AB5352"
status:
  description: Indication of the operation's result
  returned: always
  type: str
  sample: "success"
vdom:
  description: Virtual domain used
  returned: always
  type: str
  sample: "root"
version:
  description: Version of the FortiGate
  returned: always
  type: str
  sample: "v5.6.3"

'''
from ansible.module_utils.basic import AnsibleModule
from ansible.module_utils.connection import Connection
from ansible_collections.fortinet.fortios.plugins.module_utils.fortios.fortios import FortiOSHandler
from ansible_collections.fortinet.fortios.plugins.module_utils.fortios.fortios import check_legacy_fortiosapi
from ansible_collections.fortinet.fortios.plugins.module_utils.fortios.fortios import schema_to_module_spec
from ansible_collections.fortinet.fortios.plugins.module_utils.fortios.fortios import check_schema_versioning
from ansible_collections.fortinet.fortios.plugins.module_utils.fortimanager.common import FAIL_SOCKET_MSG
from ansible_collections.fortinet.fortios.plugins.module_utils.fortios.comparison import is_same_comparison
from ansible_collections.fortinet.fortios.plugins.module_utils.fortios.comparison import serialize


def filter_firewall_region_data(json):
    option_list = ['city', 'id', 'name']
    dictionary = {}

    for attribute in option_list:
        if attribute in json and json[attribute] is not None:
            dictionary[attribute] = json[attribute]

    return dictionary


def underscore_to_hyphen(data):
    if isinstance(data, list):
        for i, elem in enumerate(data):
            data[i] = underscore_to_hyphen(elem)
    elif isinstance(data, dict):
        new_data = {}
        for k, v in data.items():
            new_data[k.replace('_', '-')] = underscore_to_hyphen(v)
        data = new_data

    return data


def firewall_region(data, fos, check_mode=False):

    vdom = data['vdom']

    state = data['state']

    firewall_region_data = data['firewall_region']
    filtered_data = underscore_to_hyphen(filter_firewall_region_data(firewall_region_data))

    # check_mode starts from here
    if check_mode:
        mkey = fos.get_mkey('firewall', 'region', filtered_data, vdom=vdom)
        current_data = fos.get('firewall', 'region', vdom=vdom, mkey=mkey)
        is_existed = current_data and current_data.get('http_status') == 200 \
            and isinstance(current_data.get('results'), list) \
            and len(current_data['results']) > 0

        # 2. if it exists and the state is 'present' then compare current settings with desired
        if state == 'present' or state is True:
            if mkey is None:
                return False, True, filtered_data

            # if mkey exists then compare each other
            # record exits and they're matched or not
            if is_existed:
                is_same = is_same_comparison(
                    serialize(current_data['results'][0]), serialize(filtered_data))
                return False, not is_same, filtered_data

            # record does not exist
            return False, True, filtered_data

        if state == 'absent':
            if mkey is None:
                return False, False, filtered_data

            if is_existed:
                return False, True, filtered_data
            return False, False, filtered_data

        return True, False, {'reason: ': 'Must provide state parameter'}

    if state == "present" or state is True:
        return fos.set('firewall',
                       'region',
                       data=filtered_data,
                       vdom=vdom)

    elif state == "absent":
        return fos.delete('firewall',
                          'region',
                          mkey=filtered_data['id'],
                          vdom=vdom)
    else:
        fos._module.fail_json(msg='state must be present or absent!')


def is_successful_status(resp):
    return 'status' in resp and resp['status'] == 'success' or \
        'http_status' in resp and resp['http_status'] == 200 or \
        'http_method' in resp and resp['http_method'] == "DELETE" and resp['http_status'] == 404


def fortios_firewall(data, fos, check_mode):

    fos.do_member_operation('firewall', 'region')
    if data['firewall_region']:
        resp = firewall_region(data, fos, check_mode)
    else:
        fos._module.fail_json(msg='missing task body: %s' % ('firewall_region'))
    if check_mode:
        return resp
    return not is_successful_status(resp), \
        is_successful_status(resp) and \
        (resp['revision_changed'] if 'revision_changed' in resp else True), \
        resp


versioned_schema = {
    "elements": "dict",
    "type": "list",
    "children": {
        "city": {
            "elements": "dict",
            "type": "list",
            "children": {
                "id": {
                    "type": "integer",
                    "revisions": {
                        "v7.0.3": True,
                        "v7.0.2": True,
                        "v7.0.1": True,
                        "v7.0.0": True,
                        "v7.0.5": True,
                        "v7.0.4": True,
                        "v6.4.4": True,
                        "v6.4.0": True,
                        "v6.4.1": True
                    }
                }
            },
            "revisions": {
                "v7.0.3": True,
                "v7.0.2": True,
                "v7.0.1": True,
                "v7.0.0": True,
                "v7.0.5": True,
                "v7.0.4": True,
                "v6.4.4": True,
                "v6.4.0": True,
                "v6.4.1": True
            }
        },
        "id": {
            "type": "integer",
            "revisions": {
                "v7.0.3": True,
                "v7.0.2": True,
                "v7.0.1": True,
                "v7.0.0": True,
                "v7.0.5": True,
                "v7.0.4": True,
                "v6.4.4": True,
                "v6.4.0": True,
                "v6.4.1": True
            }
        },
        "name": {
            "type": "string",
            "revisions": {
                "v7.0.3": True,
                "v7.0.2": True,
                "v7.0.1": True,
                "v7.0.0": True,
                "v7.0.5": True,
                "v7.0.4": True,
                "v6.4.4": True,
                "v6.4.0": True,
                "v6.4.1": True
            }
        }
    },
    "revisions": {
        "v7.0.3": True,
        "v7.0.2": True,
        "v7.0.1": True,
        "v7.0.0": True,
        "v7.0.5": True,
        "v7.0.4": True,
        "v6.4.4": True,
        "v6.4.0": True,
        "v6.4.1": True
    }
}


def main():
    module_spec = schema_to_module_spec(versioned_schema)
    mkeyname = 'id'
    fields = {
        "access_token": {"required": False, "type": "str", "no_log": True},
        "enable_log": {"required": False, "type": 'bool', "default": False},
        "vdom": {"required": False, "type": "str", "default": "root"},
        "member_path": {"required": False, "type": "str"},
        "member_state": {
            "type": "str",
            "required": False,
            "choices": ["present", "absent"]
        },
        "state": {"required": True, "type": "str",
                  "choices": ["present", "absent"]},
        "firewall_region": {
            "required": False, "type": "dict", "default": None,
            "options": {
            }
        }
    }
    for attribute_name in module_spec['options']:
        fields["firewall_region"]['options'][attribute_name] = module_spec['options'][attribute_name]
        if mkeyname and mkeyname == attribute_name:
            fields["firewall_region"]['options'][attribute_name]['required'] = True

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

    versions_check_result = None
    if module._socket_path:
        connection = Connection(module._socket_path)
        if 'access_token' in module.params:
            connection.set_option('access_token', module.params['access_token'])

        if 'enable_log' in module.params:
            connection.set_option('enable_log', module.params['enable_log'])
        else:
            connection.set_option('enable_log', False)
        fos = FortiOSHandler(connection, module, mkeyname)
        versions_check_result = check_schema_versioning(fos, versioned_schema, "firewall_region")

        is_error, has_changed, result = fortios_firewall(module.params, fos, module.check_mode)

    else:
        module.fail_json(**FAIL_SOCKET_MSG)

    if versions_check_result and versions_check_result['matched'] is False:
        module.warn("Ansible has detected version mismatch between FortOS system and your playbook, see more details by specifying option -vvv")

    if not is_error:
        if versions_check_result and versions_check_result['matched'] is False:
            module.exit_json(changed=has_changed, version_check_warning=versions_check_result, meta=result)
        else:
            module.exit_json(changed=has_changed, meta=result)
    else:
        if versions_check_result and versions_check_result['matched'] is False:
            module.fail_json(msg="Error in repo", version_check_warning=versions_check_result, meta=result)
        else:
            module.fail_json(msg="Error in repo", meta=result)


if __name__ == '__main__':
    main()