matrix-docker-ansible-deploy/roles/custom/matrix-bot-maubot/tasks/validate_config.yml

---

- name: (Deprecation) Catch and report renamed maubot 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_bot_maubot_management_interface_port', 'new': 'matrix_bot_maubot_server_port'}
    - {'old': 'matrix_bot_maubot_management_interface_http_bind_port', 'new': 'matrix_bot_maubot_container_management_interface_http_bind_port'}
    - {'old': 'matrix_bot_maubot_registration_shared_secret', 'new': 'matrix_bot_maubot_homeserver_secret'}

- name: Fail if required maubot 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_bot_maubot_hostname', when: true}
    - {'name': 'matrix_bot_maubot_path_prefix', when: true}
    - {'name': 'matrix_bot_maubot_unshared_secret', when: true}
    - {'name': 'matrix_bot_maubot_admins', when: true}
    - {'name': 'matrix_bot_maubot_database_hostname', when: "{{ matrix_bot_maubot_database_engine == 'postgres' }}"}
    - {'name': 'matrix_bot_maubot_container_network', when: true}
    - {'name': 'matrix_bot_maubot_homeserver_name', when: true}
    - {'name': 'matrix_bot_maubot_homeserver_url', when: true}