module Ecm::CmsHelper
  def cms_render_navigation(name, options = {})
    options.reverse_merge! renderer: :bootstrap, expand_all: true, level: 1

    level               = options.delete(:level)
    expand_all          = options.delete(:expand_all)
    container_css_class = options.delete(:container_css_class)
    renderer            = options.delete(:renderer)

    level_as_array = (level).is_a?(Range) ? level.to_a : [level]

    navigation = Ecm::Cms::Navigation.where(name: name.to_s, locale: I18n.locale.to_s).first
    if navigation.nil? && (locale = Ecm::Cms::Configuration.navigation_locale_fallback.call(name, I18n.locale))
      navigation = Ecm::Cms::Navigation.where(name: name.to_s, locale: locale).first
    end
    unless navigation
      return I18n.t('ecm.cms.navigation.messages.not_found', lang: I18n.locale.to_s, name: name.to_s)
    end

    roots = navigation.ecm_cms_navigation_items.roots.all
    if roots.empty?
      return I18n.t('ecm.cms.navigation.messages.empty', lang: I18n.locale.to_s, name: name)
    end

    render_navigation(level: level, expand_all: expand_all, renderer: renderer) do |navigation|
      navigation.dom_class = container_css_class
      roots.each do |navigation_item|
        build_navigation_item(navigation, navigation_item, container_css_class)
      end
    end
  end

  def build_navigation_item(navigation, item, container_css_class)
    options = {}
    options[:highlights_on] = /#{item.highlights_on}/ if item.highlights_on.present?
    options = item.li_attributes.marshal_dump.delete_if { |_key, value| value.blank? }

    navigation.dom_class = container_css_class
    if item.children.present?
      navigation.item item.key, item.name, item.url, options do |sub_navigation|
        item.children.each do |sub_item|
          build_navigation_item(sub_navigation, sub_item, container_css_class)
        end
      end
    else
      navigation.item item.key, item.name, item.url, options
    end
  end

  def link_to_top
    render partial: '/ecm/cms/link_to_top'
  end

  def cms_page?
    params[:action] == 'respond' && params.has_key?(:page)
  end
end