module ImageMosaic
  module Data
    class Validator
      def initialize(urls)
        @urls = urls
      end

      def items
        @items ||= create_images.compact
      end

      private

      def create_images
        @urls.map do |url|
          child = Image::Child.new(url)
          child if child.valid?
        end
      end
    end
  end
end