{{- $defaultConfig := .Site.Data.config.default.widgets.sidebar_menu -}}
{{- $configData := ( or .Site.Data.config.widgets.sidebar_menu $defaultConfig ) -}}
{{- $lang := .Site.Language.Lang -}}
{{- $config := ( ( index $configData $lang ) | default $configData ) -}}

{{- $menu := ( $config.mirror | default "sidebar" ) -}}

{{- $.Scratch.Set "menu" $menu -}}

{{- $items := ( index .Site.Menus $menu ) -}}

{{- if $items -}}

<section class='widget widget-sidebar_menu sep-after'>
  {{- with $config.title -}}
  <header>
    <h4 class='title widget-title'>
      {{- . -}}
    </h4>
  </header>
  {{- end -}}

  <nav id='sidebar-menu' class='menu sidebar-menu' aria-label='{{ i18n "sidebarMenu" }}'>
    <div class='container'>
      <ul>
      {{- range $items -}}
        {{- template "menu_item" ( dict "Item" . "Page" $ ) -}}
      {{- end -}}
      </ul>
    </div>
  </nav>

</section>

{{- end -}}

{{- define "menu_item" -}}

{{- $menu := ( .Page.Scratch.Get "menu" ) -}}

{{- $isCurrent := ( .Page.IsMenuCurrent $menu .Item ) -}}
{{- $hasCurrent := ( .Page.HasMenuCurrent $menu .Item ) -}}
{{- $hasChildren := ( .Item.HasChildren ) -}}

<li class='item
  {{- if $hasChildren }} has-children {{- end -}}
  {{- if $hasCurrent }} has-current {{- end -}}
  {{- if $isCurrent }} current {{- end -}}
'>
  <a {{ if $isCurrent -}} aria-current='page' {{ end -}} href='{{ .Item.URL }}'>
    {{- with .Item.Pre -}}{{- . -}}{{- end -}}
    {{- .Item.Name -}}
    {{- with .Item.Post -}}{{- . -}}{{- end -}}
  </a>

  {{- if $hasChildren -}}

  <button class='sub-menu-toggler'>
    <span class='screen-reader-text'>expand sub menu</span>
    <span class='sign'></span>
  </button>

  <ul class='sub-menu'>
  {{- range .Item.Children -}}
    {{- template "menu_item" ( dict "Item" . "Page" $.Page ) -}}
  {{- end -}}
  </ul>
  {{- end -}}

</li>

{{- end -}}