module CatalogHelper

  include DisplayHelper
  include ManageProductsHelper

  def catalog_load_index options = {:page => params[:page], :show_categories => true}
    if options[:show_categories]
      @category = params[:level] ? ProductCategory.find(params[:level]) : nil
      @categories = ProductCategory.on_level(params[:level]).order(:name)
    end

    @products = profile.products.from_category(@category).paginate(:order => 'available desc, highlighted desc, name asc', :per_page => 9, :page => options[:page])
  end

  def breadcrumb(category)
    start = link_to(_('Start'), {:controller => :catalog, :action => 'index'})
    ancestors = category.ancestors.map { |c| link_to(c.name, {:controller => :catalog, :action => 'index', :level => c.id}) }.reverse
    current_level = content_tag('strong', category.name)
    all_items = [start] + ancestors + [current_level]
    content_tag('div', all_items.join(' → '), :id => 'breadcrumb')
  end

  def category_link(category, sub = false)
    count = profile.products.from_category(category).count
    name = truncate(category.name, :length => 22 - count.to_s.size)
    link_name = sub ? name : content_tag('strong', name)
    link = link_to(link_name, {:controller => :catalog, :action => 'index', :level => category.id}, :title => category.name)
    content_tag('li', "#{link} (#{count})") if count > 0
  end

  def category_sub_links(category)
    sub_categories = []
    category.children.order(:name).each do |sub_category|
      sub_categories << category_link(sub_category, true)
    end
    content_tag('ul', sub_categories) if sub_categories.size > 1
  end

end