matrix-docker-ansible-deploy/roles/custom/matrix-bridge-appservice-irc/tasks/validate_config.yml

---

- name: Fail if required settings not defined
  ansible.builtin.fail:
    msg: >-
      You need to define a required configuration setting (`{{ item.name }}`).      
  when: "item.when | bool and vars[item.name] == ''"
  with_items:
    - {'name': 'matrix_appservice_irc_appservice_token', when: true}
    - {'name': 'matrix_appservice_irc_homeserver_token', when: true}
    - {'name': 'matrix_appservice_irc_database_hostname', when: "{{ matrix_appservice_irc_database_engine == 'postgres' }}"}

# Our base configuration (`matrix_appservice_irc_configuration_yaml`) is not enough to
# let the playbook run without errors.
#
# Unless the final configuration (`matrix_appservice_irc_configuration`) contains an `ircService` definition,
# we'd fail generating the registration.yaml file with a non-helpful error.
#
# This is a safety check to ensure we fail earlier and in a nicer way.
- name: Fail if no additional configuration provided
  ansible.builtin.fail:
    msg: >-
      Your Appservice IRC configuration is incomplete (lacking an `ircService.servers` configuration).
      You need to define one or more servers by either using `matrix_appservice_irc_ircService_servers`
      or by extending the base configuration with additional configuration in `matrix_appservice_irc_configuration_extension_yaml`.
      Overriding the whole bridge's configuration (`matrix_appservice_irc_configuration`) is yet another possibility.      
  when: "matrix_appservice_irc_configuration.ircService.servers | length == 0"

- name: (Deprecation) Catch and report renamed appservice-irc variables
  ansible.builtin.fail:
    msg: >-
      Your configuration contains a variable, which now has a different name.
      Please change your configuration to rename the variable (`{{ item.old }}` -> `{{ item.new }}`).      
  when: "item.old in vars"
  with_items:
    - {'old': 'matrix_appservice_irc_container_expose_client_server_api_port', 'new': '<superseded by matrix_appservice_irc_container_http_host_bind_port>'}
    - {'old': 'matrix_appservice_irc_container_self_build', 'new': 'matrix_appservice_irc_container_image_self_build'}