Extract methods in locale switcher

app/components/layout/locale_switcher_component.html.erb

@@ -1,15 +1,13 @@
-<% if I18n.available_locales.size > 1 %>
 <div class="locale">
   <form class="locale-form">
     <label class="inline-block" for="locale-switcher">
       <%= t("layouts.header.locale") %>
     </label>
     <select class="js-location-changer locale-switcher inline-block" name="locale-switcher" id="locale-switcher">
-        <% I18n.available_locales.map do |loc| %>
+      <% locales.map do |loc| %>
         <option <%= "selected" if loc == I18n.locale %>
                 value="<%= current_path_with_query_params(locale: loc) %>"><%= name_for_locale(loc) %></option>
       <% end %>
     </select>
   </form>
 </div>
-<% end %>

app/components/layout/locale_switcher_component.rb

@@ -1,3 +1,13 @@
 class Layout::LocaleSwitcherComponent < ApplicationComponent
   delegate :name_for_locale, :current_path_with_query_params, to: :helpers
+
+  def render?
+    locales.size > 1
+  end
+
+  private
+
+    def locales
+      I18n.available_locales
+    end
 end