module DetailsTableHelper
  def details_html(attribute, resource = nil)
    resource_class = resource.class.name

    if attribute[:format] == :bullet && attribute[:value].length > 1
      list = attribute[:value].map { |value| "<li>#{value}</li>" }.join
      simple_format(list, { class: "govuk-list govuk-list--bullet" }, wrapper_tag: "ul")
    else
      return simple_format(attribute[:value].first.to_s, { class: "govuk-body" }, wrapper_tag: "p") if attribute[:value].is_a?(Array) && attribute[:value].any?

      value = determine_value(attribute, resource, resource_class)
      simple_format(value.to_s, { class: "govuk-body" }, wrapper_tag: "p")
    end
  end

private

  def determine_value(attribute, resource, resource_class)
    attribute[:value].presence || case resource_class
                                  when "Location"
                                    location_value(attribute, resource)
                                  when "Organisation"
                                    organisation_value(attribute, resource)
                                  when "Scheme"
                                    scheme_value(attribute, resource)
                                  else
                                    "<span class=\"app-!-colour-muted\">No answer provided</span>".html_safe
                                  end
  end

  def location_value(attribute, resource)
    LocationPolicy.new(current_user, resource).update? ? govuk_link_to(location_details_link_message(attribute), location_edit_path(resource, attribute[:attribute]), class: "govuk-link govuk-link--no-visited-state") : "<span class=\"app-!-colour-muted\">No answer provided</span>".html_safe
  end

  def organisation_value(attribute, resource)
    can_edit_org?(current_user) && attribute[:editable] ? govuk_link_to(organisation_details_link_message(attribute), edit_organisation_path(resource), class: "govuk-link govuk-link--no-visited-state") : "<span class=\"app-!-colour-muted\">No answer provided</span>".html_safe
  end

  def scheme_value(attribute, resource)
    can_change_scheme_answer?(attribute[:name], resource) ? govuk_link_to(scheme_details_link_message(attribute), scheme_edit_path(resource, attribute), class: "govuk-link govuk-link--no-visited-state") : "<span class=\"app-!-colour-muted\">No answer provided</span>".html_safe
  end
end