footer lang switch

layouts/partials/commons/lang-switch.html

+{{ $page := . }}
+{{ $siteLang := "" }}
+{{ $url := "" }}
+{{ with site.Languages }}
+  <ul>
+    {{ range site.Languages }}
+      {{/*  .Lang  */}}
+      {{ $siteLang := . }}
+      {{ $url = printf "/%s/" .Lang }}
+      {{ range $page.Translations }}
+        {{ if eq .Lang $siteLang.Lang }}
+          {{ $url = .Permalink }}
+        {{ end }}
+      {{ end }}
+      <li><a href="{{ $url }}">{{ $siteLang.LanguageName }}</a></li>
+    {{ end }}
+  </ul>
+{{ end }}

layouts/partials/footer/footer-simple.html

@@ -6,6 +6,7 @@
     {{ partial "footer/site.html" }}
   </div>
 </div>
+{{ partial "footer/i18n.html" }}
 <div class="container">
   <div class="footer-social">
     {{ partial "footer/social.html" }}

layouts/partials/footer/footer.html

 <footer id="document-footer">
-  {{ partial "footer/footer-simple.html" }}
+  {{ partial "footer/footer-simple.html" . }}
 </footer>

layouts/partials/footer/i18n.html

+{{ $page := . }}
+{{ $siteLang := "" }}
+{{ $url := "" }}
+
+<div class="container">
+  <div class="footer-i18n">
+    {{ with site.Languages }}
+      <ul class="small">
+        {{ range site.Languages }}
+          {{ $siteLang := . }}
+          {{ $url = printf "/%s/" .Lang }}
+          {{ range $page.Translations }}
+            {{ if eq .Lang $siteLang.Lang }}
+              {{ $url = .Permalink }}
+            {{ end }}
+          {{ end }}
+          <li><a href="{{ $url }}">{{ $siteLang.LanguageName }}</a></li>
+        {{ end }}
+      </ul>
+    {{ end }}
+  </div>
+</div>