module InvoiceBar
  module InvoiceBarHelper
    # Defines an active state of the navbar item according to
    # which controller is used.
    def active_for_controller(controller)
      'active' if params[:controller].include? controller
    end

    # Format Czech (and a like) 5-digit-long postcode.
    def formatted_postcode(postcode)
      return postcode unless postcode.to_s.length == 5
      postcode.to_s.gsub(/^(\d\d\d)(\d\d)$/, '\\1 \\2')
    end

    # Format money values using FormattedMoney.
    # If specified, it uses a +currency_symbol+ in front of the amount.
    def formatted_amount(cents, currency_symbol = '')
      begin
        results = FormattedMoney.amount(cents)
      rescue
        results = cents
      end

      if currency_symbol.blank?
        results
      else
        "#{currency_symbol} #{results}"
      end
    end

    def formatted_money(cents, currency_symbol = '')
      formatted_amount(cents, currency_symbol)
    end
  end
end