- name: Checks if there is an update available from update server.
  uri:
    method: POST
    url: https://{{ item.ip }}/api/v2.0/update/check_available
    return_content: true
    validate_certs: '{{ item.validate_certs }}'
    headers:
      Content-Type: application/json
      Authorization: 'Bearer {{ item.token }}'
  register: truenas_pending_updates

- name: Downloads (if not already in cache) and apply an update.
  uri:
    method: POST
    url: https://{{ item.ip }}/api/v2.0/update/update
    return_content: true
    validate_certs: '{{ item.validate_certs }}'
    headers:
      Content-Type: application/json
      Authorization: 'Bearer {{ item.token }}'
  when: "truenas_pending_updates.json.status == 'AVAILABLE'"

- name: Wait for update to finish.
  uri:
    method: POST
    url: https://{{ item.ip }}/api/v2.0/update/check_available
    return_content: true
    validate_certs: '{{ item.validate_certs }}'
    headers:
      Content-Type: application/json
      Authorization: 'Bearer {{ item.token }}'
  register: truenas_reboot_required
  when: "truenas_pending_updates.json.status == 'AVAILABLE' or truenas_pending_updates.json.status == 'REBOOT_REQUIRED'"
  until: "(truenas_reboot_required.json|default(dict(status=WAITING))).status == 'REBOOT_REQUIRED'"
  retries: 20
  delay: 30

- name: Reboot host
  uri:
    method: POST
    url: https://{{ item.ip }}/api/v2.0/system/reboot
    return_content: true
    validate_certs: '{{ item.validate_certs }}'
    headers:
      Content-Type: application/json
      Authorization: 'Bearer {{ item.token }}'
  when: truenas_reboot_required.json.status | default (false) == 'REBOOT_REQUIRED'

- name: Returns whether the system completed boot and is ready to use.
  uri:
    method: GET
    url: https://{{ item.ip }}/api/v2.0/system/state
    return_content: true
    validate_certs: '{{ item.validate_certs }}'
    headers:
      Content-Type: application/json
      Authorization: 'Bearer {{ item.token }}'
  register: truenas_system_ready
  until: truenas_system_ready.content == '"READY"'
  retries: 20
  delay: 30