module SimpleNavigation
  module Renderer
    class Materialize < SimpleNavigation::Renderer::Base
      def render(item_container)
        return '' if respond_to?(:skip_if_empty?) && skip_if_empty? && item_container.empty?
        config_selected_class = SimpleNavigation.config.selected_class
        SimpleNavigation.config.selected_class = 'active'
        type = options[:type] ? options[:type] : :navbar
        hide_icons = options[:hide_icons]
        list_content = item_container.items.inject([]) do |list, item|
          li_options = item.html_options.reject {|k, v| k == :link}
          if hide_icons
            li_options.delete(:icon)
            icon = nil
          else
            icon = li_options.delete(:icon)
          end
          li_content = tag_for(item, item.name, icon, type)
          if include_sub_navigation?(item)
            item.sub_navigation.dom_class = [item.sub_navigation.dom_class, type == :navbar ? 'dropdown-content' : nil].flatten.compact.join(' ')
            if type == :navbar
              item.sub_navigation.dom_id = "#{item.key.to_s}-dropdown"
            else
              item.sub_navigation.dom_id = nil
            end
            li_content << render_sub_navigation_for(item)
            li_options[:class] = [li_options[:class]].flatten.compact.join(' ')
          end
          list << content_tag(:li, li_content, li_options)
        end.join
        SimpleNavigation.config.selected_class = config_selected_class
          dom_id = item_container.dom_id ? item_container.dom_id : options[:dom_attributes][:id]
          dom_class = item_container.dom_class ? item_container.dom_class : options[:dom_attributes][:class]
          dom_attributes = {id: dom_id, class: dom_class}
        content_tag(:ul, list_content, dom_attributes)
      end

      protected

      def tag_for(item, name = '', icon = nil, type = :navbar)
        unless item.url or include_sub_navigation?(item)
          return item.name
        end
        url = item.url
        link = Array.new
        link << content_tag(:i, icon, :class => ['material-icons', 'left'].flatten.compact.join(' ')) unless icon.nil?
        link << name
        if include_sub_navigation?(item)
          item_options = item.html_options
          item_options[:link] = Hash.new if item_options[:link].nil?
          item_options[:link][:class] = Array.new if item_options[:link][:class].nil?
          if type == :navbar
            item_options[:link][:class] << 'dropdown-trigger'
            item_options[:link][:'data-target'] = "#{item.key.to_s}-dropdown"
          end
          item.html_options = item_options
        end
        link_to(link.join(" ").html_safe, url, options_for(item))
      end

    end
  end
end