module Enki
  module Admin
    class UndoItemsController < BaseController
      def index
        @undo_items = UndoItem.find(:all,
          :order => 'created_at DESC',
          :limit => 50
        )
      end

      def undo
        item = UndoItem.find(params[:id])
        begin
          object = item.process!

          respond_to do |format|
            format.html {
              flash[:notice] = item.complete_description
              redirect_to(:back)
            }
            format.json {
              render :json => {
                :message => item.complete_description,
                :obj     => object.attributes
              }
            }
          end
        rescue UndoFailed
          msg = "Could not undo, would result in an invalid state (i.e. a comment with no post)"
          respond_to do |format|
            format.html {
              flash[:notice] = msg
              redirect_to(:back)
            }
            format.json {
              render :json => { :message => msg }
            }
          end
        end
      end
    end
  end
end