class Lookbook::PreviewsController

def self.controller_path
  "lookbook/previews"
end

def example_json(example)
  {
    inspect_path: example.url_path,
    name: example.name,
    preview_path: example.preview_path,
    lookup_path: example.lookup_path
  }
end

def index
  respond_to do |format|
    format.json do
      render(
        json: Lookbook.previews.map do |preview|
          {
            name: preview.name,
            examples: preview.examples.map { |example|
              case example
              when Lookbook::PreviewExample
                example_json(example)
              when Lookbook::PreviewGroup
                {
                  name: example.name,
                  examples: example.examples.map { |ex| example_json(ex) }
                }
              end
            }
          }
        end
      )
    end
  end
end

def show
  if @target
    begin
      opts = {layout: @preview.layout}
      if params[:lookbook_embed] == "true"
        opts[:append_html] = "<script src=\"/lookbook-assets/js/embed.js?v=#{Lookbook.version}\"></script>".html_safe
      end
      preview_html = preview_controller.process(:render_in_layout_to_string, "lookbook/preview", inspector_data, **opts)
      render html: preview_html
    rescue => exception
      render_in_layout "lookbook/error",
        layout: "lookbook/standalone",
        error: prettify_error(exception)
    end
  else
    show_404 layout: "lookbook/standalone"
  end
end