- raise ArgumentError unless defined? item
- raise ArgumentError unless defined? trades
- raise ArgumentError unless defined? current_subpage

%header.item-header
  .item-header-main
    = image_tag item.thumbnail_url, class: 'item-thumbnail'
    %h2.item-name= item.name
    %nav.item-links
      - if item.nc?
        .nc-or-np{'data-type' => 'nc', title: 'Purchaseable with Neocash'}
          NC
      - else
        .nc-or-np{'data-type' => 'np', title: 'Purchaseable with Neopoints'}
          NP

      = link_to t('items.show.resources.jn_items'), jn_items_url_for(item)
      - if item.nc_trade_value
        = link_to t('items.show.resources.owls', value: item.nc_trade_value.value_text),
          "https://www.neopets.com/~owls",
          title: nc_trade_value_updated_at_text(item.nc_trade_value)
      - unless item.nc?
        = link_to t('items.show.resources.shop_wizard'), shop_wizard_url_for(item)
        = link_to t('items.show.resources.super_shop_wizard'), super_shop_wizard_url_for(item)
        = link_to t('items.show.resources.trading_post'), trading_post_url_for(item)
        = link_to t('items.show.resources.auction_genie'), auction_genie_url_for(item)

  %p.item-description= @item.description

  %nav.item-subpages-nav
    = link_to t('items.show.subpages_nav.preview'), item,
      class: ['preview-link'], 'data-is-current' => current_subpage == 'preview'
    .trades-section
      %header= t('items.show.subpages_nav.trades.header')
      %ul
        %li
          = link_to t('items.show.subpages_nav.trades.offering',
              count: trades[:offering].size),
            item_trades_path(item, type: 'offering'),
            'data-is-current' => current_subpage == 'trades_offering'
        %li
          = link_to t('items.show.subpages_nav.trades.seeking',
              count: trades[:offering].size),
            item_trades_path(item, type: 'seeking'),
            'data-is-current' => current_subpage == 'trades_seeking'