# Copyright (C) 2017  Kouhei Sutou <kou@clear-code.com>
#
# This library is free software; you can redistribute it and/or
# modify it under the terms of the GNU Lesser General Public
# License as published by the Free Software Foundation; either
# version 2.1 of the License, or (at your option) any later version.
#
# This library is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
# Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public
# License along with this library; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA

module ChupaText
  class Screenshot
    # @return [String] The MIME type of the screenshot.
    attr_reader :mime_type

    # @return [String] The data of the screenshot.
    attr_reader :data

    # @return [String, nil] The encoding of the screenshot data.
    #   `nil` means that the data is raw data. It's used for SVG data
    #   because it's text data. `"base64"` means that the data is encoded
    #   by Base64. It's used for PNG data because it's binary data.
    attr_reader :encoding

    def initialize(mime_type, data, encoding=nil)
      @mime_type = mime_type
      @data = data
      @encoding = encoding
    end

    def decoded_data
      case @encoding
      when "base64"
        @data.unpack("m*")[0]
      else
        @data
      end
    end
  end
end