class Base64Image
  attr_reader :data_uri

  def initialize(data_uri)
    @data_uri = data_uri
  end

  # Creates an instance from a given file path which is converted to a base64 data uri
  def self.from_image(path, mime_type = "image/png")
    data = Base64.encode64(File.open(path, "rb").read)
    data_uri = "data:#{mime_type};base64,#{data}"

    new(data_uri)
  end

  private

  def encoded_image
    @data_uri.split(",")[1]
  end
end