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

# Copyright: Ansible Project
# GNU General Public License v3.0+ (see COPYING or https://www.gnu.org/licenses/gpl-3.0.txt)

DOCUMENTATION = r"""
---
module: wafv2_web_acl_info
version_added: 1.5.0
author:
  - "Markus Bergholz (@markuman)"
short_description: wafv2_web_acl
description:
  - Info about web acl
options:
  name:
    description:
      - The name of the web acl.
    required: true
    type: str
  scope:
    description:
      - Scope of wafv2 web acl.
    required: true
    choices: ["CLOUDFRONT", "REGIONAL"]
    type: str

extends_documentation_fragment:
  - amazon.aws.common.modules
  - amazon.aws.region.modules
  - amazon.aws.boto3
"""

EXAMPLES = r"""
- name: get web acl
  community.aws.wafv2_web_acl_info:
    name: test05
    scope: REGIONAL
  register: out
"""

RETURN = r"""
arn:
  description: web acl arn
  sample: arn:aws:wafv2:eu-central-1:11111111:regional/webacl/test05/318c1ab9-fa74-4b3b-a974-f92e25106f61
  type: str
  returned: Always, as long as the web acl exists
description:
  description: Description of the web acl
  sample: Some web acl description
  returned: Always, as long as the web acl exists
  type: str
capacity:
  description: Current capacity of the web acl
  sample: 140
  returned: Always, as long as the web acl exists
  type: int
name:
  description: Web acl name
  sample: test02
  returned: Always, as long as the web acl exists
  type: str
rules:
  description: Current rules of the web acl
  returned: Always, as long as the web acl exists
  type: list
  sample:
    - name: admin_protect
      override_action:
        none: {}
      priority: 1
      statement:
        managed_rule_group_statement:
          name: AWSManagedRulesAdminProtectionRuleSet
          vendor_name: AWS
      visibility_config:
        cloud_watch_metrics_enabled: true
        metric_name: admin_protect
        sampled_requests_enabled: true
visibility_config:
  description: Visibility config of the web acl
  returned: Always, as long as the web acl exists
  type: dict
  sample:
    cloud_watch_metrics_enabled: true
    metric_name: blub
    sampled_requests_enabled: false
"""

try:
    from botocore.exceptions import BotoCoreError
    from botocore.exceptions import ClientError
except ImportError:
    pass  # caught by AnsibleAWSModule

from ansible.module_utils.common.dict_transformations import camel_dict_to_snake_dict

from ansible_collections.community.aws.plugins.module_utils.modules import AnsibleCommunityAWSModule as AnsibleAWSModule
from ansible_collections.community.aws.plugins.module_utils.wafv2 import describe_wafv2_tags
from ansible_collections.community.aws.plugins.module_utils.wafv2 import wafv2_list_web_acls


def get_web_acl(wafv2, name, scope, acl_id, fail_json_aws):
    try:
        response = wafv2.get_web_acl(Name=name, Scope=scope, Id=acl_id)
    except (BotoCoreError, ClientError) as e:
        fail_json_aws(e, msg="Failed to get wafv2 web acl.")
    return response


def main():
    arg_spec = dict(
        name=dict(type="str", required=True),
        scope=dict(type="str", required=True, choices=["CLOUDFRONT", "REGIONAL"]),
    )

    module = AnsibleAWSModule(
        argument_spec=arg_spec,
        supports_check_mode=True,
    )

    name = module.params.get("name")
    scope = module.params.get("scope")

    wafv2 = module.client("wafv2")
    # check if web acl exists
    response = wafv2_list_web_acls(wafv2, scope, module.fail_json_aws)

    acl_id = None
    arn = None
    retval = {}

    for item in response.get("WebACLs"):
        if item.get("Name") == name:
            acl_id = item.get("Id")
            arn = item.get("ARN")

    if acl_id:
        existing_acl = get_web_acl(wafv2, name, scope, acl_id, module.fail_json_aws)
        retval = camel_dict_to_snake_dict(existing_acl.get("WebACL"))
        tags = describe_wafv2_tags(wafv2, arn, module.fail_json_aws)
        retval["tags"] = tags

    module.exit_json(**retval)


if __name__ == "__main__":
    main()