module LanguageHelper
  def available_language_options
    options = []
    AVAILABLE_LANGUAGES.each do |locale, language|
      options << [language, locale]
    end
    options.sort_by { |o| o[0] }
  end

  def get_javascript_strings_for(language)
    defaults = I18n.t('javascripts', :locale => DEFAULT_LANGUAGE)

    if language != DEFAULT_LANGUAGE
      translations = I18n.t('javascripts', :locale => language)
      defaults.deep_merge!(translations)
    end

    defaults['pluralization_rule'] = I18n.t('i18n.plural.js_rule', :locale => language)
    defaults['pod_name'] = pod_name
    defaults
  end

  def get_diaspora_section_strings_for(section, language)
    defaults = I18n.t(section, :locale => DEFAULT_LANGUAGE)

    if language != DEFAULT_LANGUAGE
      translations = I18n.t(section, :locale => language)
      defaults.deep_merge!(translations)
    end

    defaults
  end

  def direction_for(string)
    return '' unless string.respond_to?(:cleaned_is_rtl?)
    string.cleaned_is_rtl? ? 'rtl' : 'ltr'
  end

  def rtl?
    @rtl ||= RTL_LANGUAGES.include?(I18n.locale.to_s)
  end
end