module GoSocial
  module Like
    include GoSocial::Assistant

    LIKE_BUTTON_CLASS = "fb-like"
    LIKE_BOX_CLASS = "fb-like-box"
    COMMENT_CLASS = "fb-comments"
    
    # Facebook Like Button
    def like_button(app_id, options = {})
      clazz = GoSocial::Like
      params = clazz.options_to_data(clazz.default_options_like_button.merge(options))
      params.merge!(class: LIKE_BUTTON_CLASS)

      html = "".html_safe
      html << content_tag(:div, nil, id: "fb-root")
      html << clazz.script(app_id)
      html << content_tag(:div, nil, params)
      html
    end

    # Facebook Like Box
    def like_box(app_id, options = {})
      clazz = GoSocial::Like
      params = clazz.options_to_data(clazz.default_options_like_box.merge(options))
      params.merge!(class: LIKE_BOX_CLASS)

      html = "".html_safe
      html << content_tag(:div, nil, id: "fb-root")
      html << clazz.script(app_id)
      html << content_tag(:div, nil, params)
      html
    end

    # Facebook Comment Box
    def comment_box(app_id, options = {})
      clazz = GoSocial::Like
      params = clazz.options_to_data(clazz.default_options_comment_box.merge(options))
      params.merge!(class: COMMENT_CLASS)

      html = "".html_safe
      html << content_tag(:div, nil, id: "fb-root")
      html << clazz.script(app_id)
      html << content_tag(:div, nil, params)
      html
    end

    # To avoid polluting namespace in like button
    class << self
      def default_options_like_button
        @default_options ||= {	  
          send: "false",
          layout: "box_count",
          width: "250",
          action: "like",
          font: "arial",
          colorscheme: "light"
        }.merge("show-faces" => "false")
      end

     # To avoid polluting namespace in like box
       def default_options_like_box
         @default_options ||= {	  
           send: "false",
           stream: "true",
           width: "250",
           show-border: "true",
           header: "true",
           colorscheme: "light"
         }.merge("show-faces" => "true")
       end

      # To avoid polluting namespace in comment box
       def default_options_comment_box
         @default_options ||= {	
           width: "250",         
           colorscheme: "light"
         }.merge("num-posts" => "2")
       end

      def script(app_id)
        return blank_content if scriptized?
        @scriptized = true
       # "<script src=#{js_sdk(app_id)} type='text/javascript'></script>".html_safe
        '<script>  
      (function(d, s, id) {
        var js, fjs = d.getElementsByTagName(s)[0];
        if (d.getElementById(id)) return;
        js = d.createElement(s); js.id = id;
        js.src = "//connect.facebook.net/en_US/all.js#xfbml=1";
        fjs.parentNode.insertBefore(js, fjs);
      }(document, "script", "facebook-jssdk"));
    </script>'.html_safe
      end

      #def js_sdk app_id
      #  "https://connect.facebook.net/en_US/all.js#xfbml=1&appId=#{app_id}"
      #end
    end
  end
end