module XMorph
  require 'active_support'
  class Util
    def self.mediainfo_xml_to_hash(response)
      meta = {
      "Audio" => []
      }
      begin
        response_json = Hash.from_xml(response)
        response_json["Mediainfo"]["File"]["track"].each do |track|
          type = track['type']
          track = track.except("type")
          track['Encoding_settings'] = Rack::Utils.parse_nested_query(track['Encoding_settings'].split("/").map {|pair| pair.strip }.join("&")) unless track['Encoding_settings'].nil?
          (type == "Audio") ? meta["Audio"] << track : meta[type] = track
          if type == "Video"
            if track["Display_aspect_ratio"].present?
              track["Display_aspect_ratio"] = track["Display_aspect_ratio"] if track["Display_aspect_ratio"].include? (":")
            end
            if track["Original_display_aspect_ratio"].present?
              track["Display_aspect_ratio"] = track["Original_display_aspect_ratio"] if track["Original_display_aspect_ratio"].include? (":")
            end
          end
        end
        meta['audio_tracks'] = meta['Audio'].count.to_s
      rescue => ex
        puts ex
        return false, {"error" => "Failed to load mediainfo"}
      end
      return true, meta
    end 

    def self.run_cmd_with_response(cmd)
      raw_response = `#{cmd}`
      successful = true
      exit_status = $?.exitstatus
      if exit_status != 0
        successful = false
      end
      return successful, raw_response
    end

  end
end