{%- if page.parent == "/" -%}
  {%- assign searchurl = page.parent -%}
{%- else -%}
  {%- assign searchurl = page.url -%}
{%- endif -%}
{%- assign col = site.collections | where: "label", page.collection | first -%}
{%- if col.navigation -%}
  {%- assign currentsubnav = col.navigation -%}
{%- else -%}
{%- for item in site.data.navigation -%}
  {%- for i in item.pages -%}
    {%- if i.url == searchurl -%}
      {%- assign currentsubnav = item -%}
    {%- else -%}
      {%- for j in i.pages -%}
        {%- if j.url == searchurl -%}
          {%- assign currentsubnav = item -%}
        {%- else -%}
          {%- for k in j.pages -%}
            {%- if k.url == searchurl -%}
              {%- assign currentsubnav = item -%}
            {%- endif -%}
          {%- endfor -%}
        {%- endif -%}
      {%- endfor -%}
    {%- endif -%}
  {%- endfor -%}
{%- endfor -%}
{%- endif -%}

{%- for i in currentsubnav.pages -%}
  {%- if forloop.first -%}
    <nav class="sidenav sn-contents" aria-label="Secondary">
      <div class="sidenav--head"><div class="sidenav--head-title"><div class="sidenav--head-subsection">{{ currentsubnav.name }}</div></div></div>
      <ul class="sidenav--list">
  {% endif %}
  {%- assign insub = false -%}
  {%- assign insubsub = false -%}
  {%- capture submenu -%}
    {%- for j in i.pages -%}
      {%- capture subsubmenu -%}
        {%- for k in j.pages -%}
          {%- if forloop.first %}<ul>{% endif -%}
            {%- if k.url == searchurl -%}
              {% assign insub = true %}
              {% assign insubsub = true %}
              {% include menuitem.html name=k.name url=k.url different=k.different hide=k.hide insub=false current=true %}
            {%- else -%}
              {% include menuitem.html name=k.name url=k.url different=k.different hide=k.hide insub=false current=false %}
            {%- endif -%}
          {%- if forloop.last %}</ul>{% endif -%}
        {%- endfor -%}
      {%- endcapture -%}
      {%- if forloop.first %}<ul>{% endif -%}
        {%- if j.url == searchurl -%}
          {% assign insub = true %}
          {% include menuitem.html name=j.name url=j.url different=j.different hide=j.hide insub=insubsub current=true submenu=subsubmenu %}
        {%- else -%}
          {% include menuitem.html name=j.name url=j.url different=j.different hide=j.hide insub=insubsub current=false submenu=subsubmenu %}
        {%- endif -%}
      {%- if forloop.last %}</ul>{% endif -%}
    {%- endfor -%}
  {%- endcapture -%}
  {%- if i.url == searchurl -%}
    {% include menuitem.html name=i.name url=i.url different=i.different hide=i.hide insub=insub current=true submenu=submenu %}
  {%- else -%}
    {% include menuitem.html name=i.name url=i.url different=i.different hide=i.hide insub=insub current=false submenu=submenu %}
  {%- endif -%}
  {%- if forloop.last %}</ul></nav>{% endif -%}
{%- endfor -%}