---
- name: set fact change_api_password to false
  set_fact: change_api_password=false

- name: set fact manage_native_users to false
  set_fact: manage_native_users=false

- name: set fact manage_native_users to true
  set_fact: manage_native_users=true
  when: es_users is defined and es_users.native is defined and es_users.native.keys() | length > 0

- name: set fact manage_native_role to false
  set_fact: manage_native_roles=false

- name: set fact manange_native_roles to true
  set_fact: manage_native_roles=true
  when: es_roles is defined and es_roles.native is defined and es_roles.native.keys() | length > 0

#If the node has just has security installed it maybe either stopped or started 1. if stopped, we need to start to load native realms 2. if started, we need to restart to load

#List current users
- name: List Native Users
  uri:
    url: http://{{es_api_host}}:{{es_api_port}}/_xpack/security/user
    method: GET
    user: "{{es_api_basic_auth_username}}"
    password: "{{es_api_basic_auth_password}}"
    force_basic_auth: yes
    status_code: 200
  register: user_list_response
  when: manage_native_users

- name: set fact reserved_users equals user_list_response.json
  set_fact: reserved_users={{ user_list_response.json | filter_reserved }}
  when: manage_native_users

#Current users not inc. those reserved
- name: set fact current_users equals user_list_response.json.keys not including reserved
  set_fact: current_users={{ user_list_response.json.keys() | difference (reserved_users) }}
  when: manage_native_users

#We are changing the es_api_basic_auth_username password, so we need to do it first and update the param
- name: set fact native_users
  set_fact: native_users={{ es_users.native }}
  when: manage_native_users

- name: set fact change_api_password to true
  set_fact: change_api_password=true
  when: manage_native_users and es_api_basic_auth_username in native_users and native_users[es_api_basic_auth_username].password is defined

- name: Update API User Password
  uri:
    url: http://{{es_api_host}}:{{es_api_port}}/_xpack/security/user/{{es_api_basic_auth_username}}/_password
    method: POST
    body_format: json
    body: "{ \"password\":\"{{native_users[es_api_basic_auth_username].password}}\" }"
    status_code: 200
    user: "{{es_api_basic_auth_username}}"
    password: "{{es_api_basic_auth_password}}"
    force_basic_auth: yes
  when: change_api_password

- name: set fact es_api_basic_auth_password
  set_fact: es_api_basic_auth_password={{native_users[es_api_basic_auth_username].password}}
  when: change_api_password

#Identify users that are present in ES but not declared and thus should be removed
- name: set fact users_to_remove
  set_fact: users_to_remove={{ current_users | difference ( native_users.keys() ) }}
  when: manage_native_users

#Delete all non required users NOT inc. reserved
- name: Delete Native Users
  uri:
    url: http://{{es_api_host}}:{{es_api_port}}/_xpack/security/user/{{item}}
    method: DELETE
    status_code: 200
    user: "{{es_api_basic_auth_username}}"
    password: "{{es_api_basic_auth_password}}"
    force_basic_auth: yes
  when: manage_native_users
  with_items: "{{ users_to_remove | default([]) }}"

- name: set fact users_to_ignore
  set_fact: users_to_ignore={{ native_users.keys() | intersect (reserved_users) }}
  when: manage_native_users

- name: debug message
  debug:
    msg: "WARNING: YOU CAN ONLY CHANGE THE PASSWORD FOR RESERVED USERS IN THE NATIVE REALM. ANY ROLE CHANGES WILL BE IGNORED: {{users_to_ignore}}"
  when: manage_native_users and users_to_ignore | length > 0

#Update password on all reserved users
- name: Update Reserved User Passwords
  uri:
    url: http://{{es_api_host}}:{{es_api_port}}/_xpack/security/user/{{item}}/_password
    method: POST
    body_format: json
    body: "{ \"password\":\"{{native_users[item].password}}\" }"
    status_code: 200
    user: "{{es_api_basic_auth_username}}"
    password: "{{es_api_basic_auth_password}}"
    force_basic_auth: yes
  when: native_users[item].password is defined
  no_log: True
  with_items: "{{ users_to_ignore | default([]) }}"

- name: set fact users_to_modify
  set_fact: users_to_modify={{ native_users.keys() | difference (reserved_users) }}
  when: manage_native_users

#Overwrite all other users NOT inc. those reserved
- name: Update Non-Reserved Native User Details
  uri:
    url: http://{{es_api_host}}:{{es_api_port}}/_xpack/security/user/{{item}}
    method: POST
    body_format: json
    body: "{{ native_users[item] | to_json }}"
    status_code: 200
    user: "{{es_api_basic_auth_username}}"
    password: "{{es_api_basic_auth_password}}"
    force_basic_auth: yes
  when: manage_native_users
  no_log: True
  with_items: "{{ users_to_modify | default([]) }}"

## ROLE CHANGES

#List current roles not. inc those reserved
- name: List Native Roles
  uri:
    url: http://{{es_api_host}}:{{es_api_port}}/_xpack/security/role
    method: GET
    body_format: json
    user: "{{es_api_basic_auth_username}}"
    password: "{{es_api_basic_auth_password}}"
    force_basic_auth: yes
    status_code: 200
  register: role_list_response
  when: manage_native_roles

- name: set fact reserved roles
  set_fact: reserved_roles={{ role_list_response.json | filter_reserved }}
  when: manage_native_roles

- name: set fact current roles
  set_fact: current_roles={{ role_list_response.json.keys() | difference (reserved_roles) }}
  when: manage_native_roles

- name: set fact roles to ignore
  set_fact: roles_to_ignore={{ es_roles.native.keys() | intersect (reserved_roles) | default([]) }}
  when: manage_native_roles

- name: debug message
  debug:
    msg: "WARNING: YOU CANNOT CHANGE RESERVED ROLES. THE FOLLOWING WILL BE IGNORED: {{roles_to_ignore}}"
  when: manage_native_roles and roles_to_ignore | length > 0

- name: set fact roles_to_remove
  set_fact: roles_to_remove={{ current_roles | difference ( es_roles.native.keys()  ) }}
  when: manage_native_roles

#Delete all non required roles NOT inc. reserved
- name: Delete Native Roles
  uri:
    url: http://{{es_api_host}}:{{es_api_port}}/_xpack/security/role/{{item}}
    method: DELETE
    status_code: 200
    user: "{{es_api_basic_auth_username}}"
    password: "{{es_api_basic_auth_password}}"
    force_basic_auth: yes
  when: manage_native_roles
  with_items: "{{roles_to_remove | default([]) }}"

- name: set fact roles_to_modify
  set_fact: roles_to_modify={{ es_roles.native.keys() | difference (reserved_roles) }}
  when: manage_native_roles

#Update other roles - NOT inc. reserved roles
- name: Update Native Roles
  uri:
    url: http://{{es_api_host}}:{{es_api_port}}/_xpack/security/role/{{item}}
    method: POST
    body_format: json
    body: "{{ es_roles.native[item] | to_json}}"
    status_code: 200
    user: "{{es_api_basic_auth_username}}"
    password: "{{es_api_basic_auth_password}}"
    force_basic_auth: yes
  when: manage_native_roles
  with_items: "{{ roles_to_modify | default([]) }}"