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

# Copyright (c) 2019 Dell EMC Inc.
# 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 absolute_import, division, print_function
__metaclass__ = type

DOCUMENTATION = '''
---
module: idrac_redfish_info
short_description: Gather PowerEdge server information through iDRAC using Redfish APIs
description:
  - Builds Redfish URIs locally and sends them to remote iDRAC controllers to
    get information back.
  - For use with Dell EMC iDRAC operations that require Redfish OEM extensions.
extends_documentation_fragment:
  - community.general.attributes
  - community.general.attributes.info_module
attributes:
  check_mode:
    version_added: 3.3.0
    # This was backported to 2.5.4 and 1.3.11 as well, since this was a bugfix
options:
  category:
    required: true
    description:
      - Category to execute on iDRAC.
    type: str
  command:
    required: true
    description:
      - List of commands to execute on iDRAC.
      - V(GetManagerAttributes) returns the list of dicts containing iDRAC,
        LifecycleController and System attributes.
    type: list
    elements: str
  baseuri:
    required: true
    description:
      - Base URI of iDRAC.
    type: str
  username:
    description:
      - Username for authenticating to iDRAC.
    type: str
  password:
    description:
      - Password for authenticating to iDRAC.
    type: str
  auth_token:
    description:
      - Security token for authenticating to iDRAC.
    type: str
    version_added: 2.3.0
  timeout:
    description:
      - Timeout in seconds for HTTP requests to iDRAC.
    default: 10
    type: int

author: "Jose Delarosa (@jose-delarosa)"
'''

EXAMPLES = '''
  - name: Get Manager attributes with a default of 20 seconds
    community.general.idrac_redfish_info:
      category: Manager
      command: GetManagerAttributes
      baseuri: "{{ baseuri }}"
      username: "{{ username }}"
      password: "{{ password }}"
      timeout: 20
    register: result

  # Examples to display the value of all or a single iDRAC attribute
  - name: Store iDRAC attributes as a fact variable
    ansible.builtin.set_fact:
      idrac_attributes: "{{ result.redfish_facts.entries | selectattr('Id', 'defined') | selectattr('Id', 'equalto', 'iDRACAttributes') | list | first }}"

  - name: Display all iDRAC attributes
    ansible.builtin.debug:
      var: idrac_attributes

  - name: Display the value of 'Syslog.1.SysLogEnable' iDRAC attribute
    ansible.builtin.debug:
      var: idrac_attributes['Syslog.1.SysLogEnable']

  # Examples to display the value of all or a single LifecycleController attribute
  - name: Store LifecycleController attributes as a fact variable
    ansible.builtin.set_fact:
      lc_attributes: "{{ result.redfish_facts.entries | selectattr('Id', 'defined') | selectattr('Id', 'equalto', 'LCAttributes') | list | first }}"

  - name: Display LifecycleController attributes
    ansible.builtin.debug:
      var: lc_attributes

  - name: Display the value of 'CollectSystemInventoryOnRestart' attribute
    ansible.builtin.debug:
      var: lc_attributes['LCAttributes.1.CollectSystemInventoryOnRestart']

  # Examples to display the value of all or a single System attribute
  - name: Store System attributes as a fact variable
    ansible.builtin.set_fact:
      system_attributes: "{{ result.redfish_facts.entries | selectattr('Id', 'defined') | selectattr('Id', 'equalto', 'SystemAttributes') | list | first }}"

  - name: Display System attributes
    ansible.builtin.debug:
      var: system_attributes

  - name: Display the value of 'PSRedPolicy'
    ansible.builtin.debug:
      var: system_attributes['ServerPwr.1.PSRedPolicy']

'''

RETURN = '''
msg:
    description: different results depending on task
    returned: always
    type: dict
    sample: List of Manager attributes
'''

from ansible.module_utils.basic import AnsibleModule
from ansible_collections.community.general.plugins.module_utils.redfish_utils import RedfishUtils
from ansible.module_utils.common.text.converters import to_native


class IdracRedfishUtils(RedfishUtils):

    def get_manager_attributes(self):
        result = {}
        manager_attributes = []
        properties = ['Attributes', 'Id']

        response = self.get_request(self.root_uri + self.manager_uri)

        if response['ret'] is False:
            return response
        data = response['data']

        # Manager attributes are supported as part of iDRAC OEM extension
        # Attributes are supported only on iDRAC9
        try:
            for members in data[u'Links'][u'Oem'][u'Dell'][u'DellAttributes']:
                attributes_uri = members[u'@odata.id']

                response = self.get_request(self.root_uri + attributes_uri)
                if response['ret'] is False:
                    return response
                data = response['data']

                attributes = {}
                for prop in properties:
                    if prop in data:
                        attributes[prop] = data.get(prop)

                if attributes:
                    manager_attributes.append(attributes)

            result['ret'] = True

        except (AttributeError, KeyError) as e:
            result['ret'] = False
            result['msg'] = "Failed to find attribute/key: " + str(e)

        result["entries"] = manager_attributes
        return result


CATEGORY_COMMANDS_ALL = {
    "Manager": ["GetManagerAttributes"]
}


def main():
    result = {}
    module = AnsibleModule(
        argument_spec=dict(
            category=dict(required=True),
            command=dict(required=True, type='list', elements='str'),
            baseuri=dict(required=True),
            username=dict(),
            password=dict(no_log=True),
            auth_token=dict(no_log=True),
            timeout=dict(type='int', default=10)
        ),
        required_together=[
            ('username', 'password'),
        ],
        required_one_of=[
            ('username', 'auth_token'),
        ],
        mutually_exclusive=[
            ('username', 'auth_token'),
        ],
        supports_check_mode=True,
    )

    category = module.params['category']
    command_list = module.params['command']

    # admin credentials used for authentication
    creds = {'user': module.params['username'],
             'pswd': module.params['password'],
             'token': module.params['auth_token']}

    # timeout
    timeout = module.params['timeout']

    # Build root URI
    root_uri = "https://" + module.params['baseuri']
    rf_utils = IdracRedfishUtils(creds, root_uri, timeout, module)

    # Check that Category is valid
    if category not in CATEGORY_COMMANDS_ALL:
        module.fail_json(msg=to_native("Invalid Category '%s'. Valid Categories = %s" % (category, list(CATEGORY_COMMANDS_ALL.keys()))))

    # Check that all commands are valid
    for cmd in command_list:
        # Fail if even one command given is invalid
        if cmd not in CATEGORY_COMMANDS_ALL[category]:
            module.fail_json(msg=to_native("Invalid Command '%s'. Valid Commands = %s" % (cmd, CATEGORY_COMMANDS_ALL[category])))

    # Organize by Categories / Commands

    if category == "Manager":
        # execute only if we find a Manager resource
        result = rf_utils._find_managers_resource()
        if result['ret'] is False:
            module.fail_json(msg=to_native(result['msg']))

        for command in command_list:
            if command == "GetManagerAttributes":
                result = rf_utils.get_manager_attributes()

    # Return data back or fail with proper message
    if result['ret'] is True:
        del result['ret']
        module.exit_json(redfish_facts=result)
    else:
        module.fail_json(msg=to_native(result['msg']))


if __name__ == '__main__':
    main()
