module PagesHelper

  def parse_pp_tags(file)
    opened_file =  File.open(file)
    doc = Nokogiri::HTML(opened_file, nil, "UTF-8")
    opened_file.close
    pps = doc.css("*[data-pp]")
    pps.each do |pp|
      pp.content = "<p class='add-ps'></p>"
    end
    doc.to_html
  end

  def render_widget_for_frontend(controller_name, widget_method, widget_file)
    def parsing_repeats_again(elements,d,level)
        newhtml = []
        oldhtml = []
        elements.each do |el|
          html_to_render = ""
          data_name = el.attr("data-list")
          wrap_elements = el.css("*[data-list][data-level='#{level}']")
          if d["#{data_name}"]
            d["#{data_name}"].each_with_index do |item,i|
              element = el.inner_html
              if wrap_elements.count > 0
                htmls = parsing_repeats_again(wrap_elements,d["#{data_name}"][i], level + 1)
                htmls[0].each_with_index do |html,i|
                  element = element.gsub(html,htmls[1][i])      
                end
              end
              item.each do |key,value|
                if !value.kind_of?(Array)
                  value = value.nil? ? "" : value
                  element = element.gsub("{{#{key}}}",value.to_s.html_safe)
                  element = element.gsub("%7B%7B#{key}%7D%7D",value.to_s)
                end
              end
              html_to_render = html_to_render + element
            end
            temp = el.to_s
            oldhtml << temp
            temp = temp.gsub(el.inner_html, html_to_render)
            newhtml << temp
          end
        end
        [oldhtml,newhtml]
      end
    controller_name = controller_name.downcase.singularize
    f = File.join(Rails.root, 'app', 'templates', "#{@key}", 'modules', "#{controller_name}", "_#{widget_file}.html.erb");
    if !File.exists?f
      f = File.join('../templates', "#{@key}", 'modules', "#{controller_name}", "_widget.html.erb");
    else
      f = File.join('../templates', "#{@key}", 'modules', "#{controller_name}", "_#{widget_file}.html.erb");
    end
    s = render_to_string(f)
    doc = Nokogiri::HTML(s, nil, "UTF-8")
    wrap_elements = doc.css("*[data-repeat]")
    controller = "#{controller_name.capitalize.pluralize}_controller".classify.constantize.new
    OrbitHelper.set_current_widget_module controller_name
    data = controller.send("#{widget_method}")
    keys = data.keys
    wrap_elements = doc.css("*[data-list][data-level='0']")
    htmls = parsing_repeats_again(wrap_elements,data,1)
    html = doc.to_s
    htmls[0].each_with_index do |h,i|
      html = html.gsub(h,htmls[1][i])
    end
    if keys[1]
      (data[keys[1]].kind_of?(Array) ?  data[keys[0]] : data[keys[1]]).each do |key,value|
        html = html.gsub("{{#{key}}}",value.to_s.html_safe)
        html = html.gsub("%7B%7B#{key}%7D%7D",value.to_s)
      end
    end
    html.html_safe
  end

end