Noosfero/noosfero

module AccountHelper
  def validation_classes
    "available unavailable valid validated invalid checking"
  end

  def checking_message(key)
    case key
    when :url
      _("Checking availability of login name...")
    when :email
      _("Checking if e-mail address is already taken...")
    end
  end

  def suggestion_based_on_username(requested_username = "")
    return "" if requested_username.empty?

    requested_username = requested_username.downcase.tr("^#{Profile::IDENTIFIER_FORMAT}", "")
    usernames = []
    tries = 0
    3.times do
      begin
        valid_name = requested_username + rand(1000).to_s
        tries += 1
        invalid = usernames.include?(valid_name) || !Person.is_available?(valid_name, environment)
      end while tries <= 10 && invalid
      usernames << valid_name unless invalid
    end
    usernames
  end
end