request.rb

%w[annotate_image batch feature image vision].each do |serv|
  require_relative "#{serv}"
end

module Services
  module Builders
    class Request
      FEATURE_TYPES = %w(
        SAFE_SEARCH_DETECTION FACE_DETECTION
        LABEL_DETECTION TEXT_DETECTION
        LANDMARK_DETECTION LOGO_DETECTION
      ).freeze

      def initialize(image_path)
        @image_path = image_path
        @features = []
      end

      def call
        vision = Services::Builders::Vision.new.call
        FEATURE_TYPES.each { |type| @features << Services::Builders::Feature.new(type).call }
        image = Services::Builders::Image.new(@image_path).call
        annotate_image = Services::Builders::AnnotateImage.new(image, @features).call
        batch_annotate = Services::Builders::BatchAnnotateImages.new([annotate_image]).call
        vision.annotate_image(batch_annotate).to_h[:responses].first
      end
    end
  end