module ParserFrontEnd

  require 'nokogiri'

  def parse_page_noko(page, site)
    i18n = {}
    Site.first.valid_locales.each do |locale|
      body = Nokogiri::HTML(page.design.layout.body)
      parse_contents(body, page, locale)
      parse_footer(body, page, site)
      parse_images(body, page)
      parse_menu(body, page)
      parse_sub_menu(body, page, site)
      i18n.merge!({locale => body.to_html})
    end
    i18n
  end

  def parse_page_content(page)
    category = params[:category_id].blank? ? page[:category] : params[:category_id]
    tag = params[:tag_id].blank? ? page[:tag] : params[:tag_id]
    body = Nokogiri::HTML(page.content)
    body.css('orbit_front').each do |front|
      ret = ''
      part = PagePart.find(front['part_id']) if front['part_id']
      ret << eval("\"#{front['path']}\"") rescue ''
      fragment = Nokogiri::HTML::DocumentFragment.new(body, "<div class='dymanic_load widget' path='#{ret}'></div>")
      front.swap(fragment)
    end
    body.to_html
  end


  # page_footer
  def parse_footer(body, page, site)
    page_footer = body.css('.page_footer').first
    if page_footer
      res = "<div id='#{page_footer['id']}', class='#{page_footer['class']}'>"
      res << "<div class='dymanic_load' path='#{front_show_footer_path}'></div>"
      res << "</div>"
      fragment = Nokogiri::HTML::DocumentFragment.new(body, res)
      page_footer.swap(fragment) rescue nil
    else
      ''
    end
  end

  # page_images
  def parse_images(body, page, edit=nil)
    body.css('.page_image').each do |page_image|
      image = page.design.images.detect{|image| image.name.eql?(File.basename(page_image['src'])) } unless image
      if image
        res = "<img src=#{image.file.url} "
        page_image.attributes.each do |l|
          res << "#{l[0]}='#{l[1]}' "
        end
        res << '>'
      end
      fragment = Nokogiri::HTML::DocumentFragment.new(body, res)
      page_image.swap(fragment)
    end
  end

  # page_menu
  def parse_menu(body, page)
    page_menu = body.css('.page_menu').first
    if page_menu
      fragment = Nokogiri::HTML::DocumentFragment.new(body, "<div class='dymanic_load' path='#{front_show_menu_path(page.id)}'></div>")
      page_menu.swap(fragment)
    else
      ''
    end
  end


  # page_sub_menu
  def parse_sub_menu(body, page, site)
    page_sub_menu = body.css('.page_sub_menu').first
    if page_sub_menu
      res = "<div id='#{page_sub_menu['id']}', class='#{page_sub_menu['class']}'>"
      res << "<div class='dymanic_load' path='#{front_show_site_sub_menu_path}'></div>"
      res << "</div>"
      fragment = Nokogiri::HTML::DocumentFragment.new(body, res)
      page_sub_menu.swap(fragment)
    else
      ''
    end
  end

  # page_contents
  def parse_contents(body, page, edit=nil, locale)
    public_r_tags = []
    body.css('.page_content').each do |content|
      ret = ''
      if (content["main"] == "true" && !page.module_app.nil?)
        url = "/panel/#{page.module_app.key}/front_end/#{page.app_frontend_url}\#{(\"/\" + params[:id]) if params[:id] && !params[:id].eql?(page.id.to_s)}?inner=true"
        options = "&page_id=#{page.id}&category_id=\#{category}&tag_id=\#{tag}&preview=\#{params[:preview]}&page_main=\#{params[:page_main]}&search_query=\#{params[:search_query]}&name=\#{params[:name]}"
        ret << "<orbit_front path='#{url + options}'></div>"
      else
        part = page.page_parts.detect{ |p| p.name.to_s == content['name'].to_s } rescue nil
        case part.kind
        when 'text'
          ret << part.content_translations[locale.to_s] rescue ''
        when 'module_widget'
          url = "/panel/\#{part.module_app.key}/widget/\#{part.widget_path}?inner=true"
          options = "&category_id=\#{!part[:category].blank? ? part[:category].blank? : category}&tag_id=\#{!part[:tag].blank? ? part[:tag] : tag}&page=\#{params[:page]}&search_query=\#{params[:search_query]}&part_title=\#{Rack::Utils.escape(part_title).gsub(\"\+\", \"\%20\") rescue nil}"
          ret << "<orbit_front path='#{url + options}' part_id=#{part.id}></div>"
        when 'public_r_tag'
          ret << send("generate_#{part.public_r_tag}s", part.public_r_tag_object_id, page)
        else
            ''
        end if part
      end
      scope = "<#{content.name}"
      content.attributes.each_pair do |key, value|
        scope << " #{key}='#{value}'"
      end
      scope << ">#{ret}</#{content.name}>"
      fragment = Nokogiri::HTML::DocumentFragment.new(body, scope)
      content.swap(fragment)
    end
  end

  # ad_banners
  def generate_ad_banners(*args)
    "<div class='dymanic_load' path='#{front_show_banner_path(args[0])}'></div>"
  end

  # sitemap
  def generate_sitemaps(*args)
    "<div class='dymanic_load' path='#{front_show_sitemap_path}'></div>"
  end

  # sub_menus
  def generate_sub_menus(*args)
    "<div class='dymanic_load' path='#{front_show_page_sub_menu_path({:menu_page_id => args[0], :page_id => args[1]})}'></div>"
  end
  
end