---

- name: Fail if required settings not defined
  fail:
    msg: >-
      You need to define a required configuration setting (`{{ item }}`).
  when: "vars[item] == ''"
  with_items:
    - "matrix_appservice_slack_control_room_id"
    - "matrix_appservice_slack_appservice_token"
    - "matrix_appservice_slack_homeserver_url"
    - "matrix_appservice_slack_homeserver_token"
    - "matrix_appservice_slack_id_token"

- name: (Deprecation) Catch and report renamed settings
  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_slack_container_self_build', 'new': 'matrix_appservice_slack_container_image_self_build'}