Merge pull request #2128 from mkllnk/2113-i18n-config

2113 Display only selected languages in switcher

lib/open_food_network/i18n_config.rb

@@ -0,0 +1,27 @@
+module OpenFoodNetwork
+  # Provides access to the language settings.
+  # Currently, language settings are read from the environment.
+  # See: config/application.yml
+  class I18nConfig
+    # Locales that can be selected by users.
+    def self.selectable_locales
+      ENV["AVAILABLE_LOCALES"].andand.split(/[\s,]+/) || []
+    end
+
+    # All locales that can be accessed by the application, including fallbacks.
+    def self.available_locales
+      (selectable_locales + [default_locale, source_locale]).uniq
+    end
+
+    # The default locale that is used when the user doesn't have a preference.
+    def self.default_locale
+      ENV["LOCALE"] || ENV["I18N_LOCALE"] || source_locale
+    end
+
+    # This locale is changed with the code and should always be complete.
+    # All translations are done from this locale.
+    def self.source_locale
+      "en"
+    end
+  end
+end