module RailsConnector

  class ObjsController < WebserviceController
    before_filter :load_object, only: [:update, :destroy, :create_widget]

    def create
      created_obj = CmsRestApi.post(
        "revisions/#{Workspace.current.revision_id}/objs",
        {obj: obj_params}
      )
      render json: created_obj
    end

    def update
      changed_obj = CmsRestApi.put(
        "revisions/#{Workspace.current.revision_id}/objs/#{params[:id]}",
        {obj: obj_params}
      )
      render json: changed_obj
    end

    def destroy
      @obj.destroy
      render json: {}
    end

    def page_class_selection
      thumbnails = {}
      obj_classes = CmsRestApi.get("revisions/#{Workspace.current.revision_id}/obj_classes")
      obj_classes['results'].each do |obj_class|
        begin
          name = obj_class['name']
          thumbnails[name] = render_to_string("#{name.underscore}/thumbnail")
        rescue ActionView::MissingTemplate
        end
      end
      render json: thumbnails
    end

    def widget_class_selection
      widgets = {}
      Dir[Rails.root + 'app/widgets/*'].each do |widget_path|
        widget_dir = File.basename(widget_path)
        widget_class_name = widget_dir.camelize
        widgets[widget_class_name] = WidgetRenderer.new(request).process('thumbnail', widget_dir)
      end
      render json: widgets
    end

    def create_widget
      widget = CmsRestApi.post("revisions/#{Workspace.current.revision_id}/objs", {obj: {
        _path: "/_widgets/#{@obj.id}/#{SecureRandom.hex}",
        _obj_class: params[:obj_class],
      }})

      @widget = Obj.find(widget['id'])
      @current_page = Obj.find(params[:current_page_id]) if params[:current_page_id].present?

      render json: {markup: render_to_string(layout: false)}
    end

    private

    def load_object
      @obj = Obj.find(params[:id])
    end

    def obj_params
      params[:obj].tap do |p|
        raise "Required parameter 'obj' is missing." unless p.present?
        raise "Parameter 'obj' is not a hash." unless p.is_a?(Hash)

        if @obj
          convert_html_keys = p.keys.select do |key|
            @obj.type_of_attribute(key.to_s) == 'html'
          end

          convert_html_keys.each do |key|
            p[key] = ContentConversion.convert_html_links(p[key], request.host, request.port)
          end
        end
      end
    end
  end

end