module Lookbook::TargetableConcern

def show_404(layout: nil)
  locals = if @preview
    {
      message: "Example not found",
      description: "The '#{@preview.label}' preview does not have an scenario named '#{path_segments.last}'."
    }
  else
    {
      message: "Not found",
      description: "Looked for '#{params[:path]}'.<br>The preview may have been renamed or deleted."
    }
  end
  render_in_layout "lookbook/404", layout: layout, **locals, status: 404
end