module Pageflow
  module Panorama
    class S3Bucket
      attr_reader :bucket

      def initialize(bucket)
        @bucket = bucket
      end

      def write(name:, input_stream:, content_length:, content_type:)
        object = bucket.object(name)

        object.put(body: StreamWithSize.new(input_stream, content_length),
                   acl: 'public-read',
                   content_type: content_type,
                   content_length: content_length)
      end

      class StreamWithSize < SimpleDelegator
        attr_reader :size

        def initialize(stream, size)
          super(stream)
          @size = size
        end
      end

      class Factory
        def from_attachment(attachment)
          S3Bucket.new(attachment.s3_bucket)
        end
      end
    end
  end
end