---

- name: Fail if required Element Web settings not defined
  ansible.builtin.fail:
    msg: >
      You need to define a required configuration setting (`{{ item }}`) for using Element Web.
  when: "item.when | bool and vars[item.name] == ''"
  with_items:
    - {'name': 'matrix_client_element_default_hs_url', when: true}
    - {'name': 'matrix_client_element_container_network', when: true}
    - {'name': 'matrix_client_element_container_labels_traefik_compression_middleware_name', when: "{{ matrix_client_element_container_labels_traefik_compression_middleware_enabled }}"}

- name: Fail if Element location sharing enabled, but no tile server defined
  ansible.builtin.fail:
    msg: >-
      You need to define at least one map tile server in matrix_client_element_location_sharing_map_style_content_sources_localsource_tiles list
  when:
    - matrix_client_element_location_sharing_enabled | bool
    - matrix_client_element_location_sharing_map_style_content_sources_localsource_tiles | length == 0

- name: (Deprecation) Catch and report riot-web variables
  ansible.builtin.fail:
    msg: >-
      Riot has been renamed to Element (https://element.io/blog/welcome-to-element/).
      The playbook will migrate your existing configuration and data automatically, but you need to adjust variable names.
      Please change your configuration (vars.yml) to rename all riot-web variables (`{{ item.old }}` -> `{{ item.new }}`).
      Also note that DNS configuration changes may be necessary.
  when: "vars | dict2items | selectattr('key', 'match', item.old) | list | items2dict"
  with_items:
    - {'old': 'matrix_riot_web_.*', 'new': 'matrix_client_element_.*'}

- name: (Deprecation) Catch and report renamed element-web settings
  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_client_element_showLabsSettings', 'new': 'matrix_client_element_show_lab_settings'}
    - {'old': 'matrix_client_element_permalinkPrefix', 'new': 'matrix_client_element_permalink_prefix'}
    - {'old': 'matrix_client_element_roomdir_servers', 'new': 'matrix_client_element_room_directory_servers'}
    - {'old': 'matrix_client_element_settingDefaults_custom_themes', 'new': 'matrix_client_element_setting_defaults_custom_themes'}
    - {'old': 'matrix_client_element_branding_authFooterLinks', 'new': 'matrix_client_element_branding_auth_footer_links'}
    - {'old': 'matrix_client_element_branding_authHeaderLogoUrl', 'new': 'matrix_client_element_branding_auth_header_logo_url'}
    - {'old': 'matrix_client_element_branding_welcomeBackgroundUrl', 'new': 'matrix_client_element_branding_welcome_background_url'}
    - {'old': 'matrix_client_element_jitsi_preferredDomain', 'new': 'matrix_client_element_jitsi_preferred_domain'}
    - {'old': 'matrix_client_element_welcome_user_id', 'new': '<removed>'}

- when: matrix_client_element_container_labels_traefik_enabled | bool
  block:
    - name: Fail if required matrix-client-element Traefik settings not defined
      ansible.builtin.fail:
        msg: >-
          You need to define a required configuration setting (`{{ item }}`).
      when: "vars[item] == ''"
      with_items:
        - matrix_client_element_container_labels_traefik_hostname
        - matrix_client_element_container_labels_traefik_path_prefix

    # We ensure it doesn't end with a slash, because we handle both (slash and no-slash).
    # Knowing that `matrix_client_element_container_labels_traefik_path_prefix` does not end with a slash
    # ensures we know how to set these routes up without having to do "does it end with a slash" checks elsewhere.
    - name: Fail if matrix_client_element_container_labels_traefik_path_prefix ends with a slash
      ansible.builtin.fail:
        msg: >-
          matrix_client_element_container_labels_traefik_path_prefix (`{{ matrix_client_element_container_labels_traefik_path_prefix }}`) must either be `/` or not end with a slash (e.g. `/element`).
      when: "matrix_client_element_container_labels_traefik_path_prefix != '/' and matrix_client_element_container_labels_traefik_path_prefix[-1] == '/'"