tulios/nightcrawler_swift

module NightcrawlerSwift
  class Upload < Command

    def execute path, file, opts = {}
      if path.nil? or path.empty?
        raise Exceptions::ValidationError.new "Upload command requires a path parameter"
      end

      body = file.read
      headers = {etag: etag(body), content_type: content_type(file)}

      max_age = opts[:max_age] || options.max_age
      headers.merge!(cache_control: "public, max-age=#{max_age}") if max_age

      expires = opts[:expires]
      headers.merge!(expires: CGI.rfc1123_date(expires)) if expires

      content_encoding = opts[:content_encoding] || options.content_encoding
      headers.merge!(content_encoding: content_encoding.to_s) if content_encoding

      custom_headers = opts[:custom_headers]
      headers.merge!(custom_headers) if custom_headers

      response = put "#{connection.upload_url}/#{path}", body: body, headers: headers
      response.code >= 200 && response.code < 300
    end

    private

    def content_type file
      MultiMime.by_file(file).content_type
    end

    def etag content
      Digest::MD5.hexdigest(content)
    end

  end
end