module Mail
  class Message

    def set_content_type(*args)
      message = 'Message#set_content_type is deprecated, please just call ' <<
                'Message#content_type with the same arguments'
      ActiveSupport::Deprecation.warn(message, caller[0,2])
      content_type(*args)
    end

    alias :old_transfer_encoding :transfer_encoding
    def transfer_encoding(value = nil)
      if value
        message = 'Message#transfer_encoding is deprecated, ' <<
                  'please call Message#content_transfer_encoding with the same arguments'
        ActiveSupport::Deprecation.warn(message, caller[0,2])
        content_transfer_encoding(value)
      else
        old_transfer_encoding
      end
    end

    def transfer_encoding=(value)
      message = 'Message#transfer_encoding= is deprecated, ' <<
                'please call Message#content_transfer_encoding= with the same arguments'
      ActiveSupport::Deprecation.warn(message, caller[0,2])
      self.content_transfer_encoding = value
    end

    def original_filename
      message = 'Message#original_filename is deprecated, please call Message#filename'
      ActiveSupport::Deprecation.warn(message, caller[0,2])
      filename
    end

  end
end