#pragma once

#include <cstdint>

#include <string>

#include <vector>

#include "envoy/access_log/access_log.h"

#include "envoy/runtime/runtime.h"

#include "source/common/access_log/access_log_impl.h"

#include "source/common/http/header_utility.h"

#include "source/common/protobuf/protobuf.h"

namespace Envoy {

namespace Extensions {

namespace AccessLoggers {

namespace Common {

/**

 * Base implementation of Accesslog::Instance handles common filter logic.

 */

class ImplBase : public AccessLog::Instance {

public:

  /**

   * Log a completed request if the underlying AccessLog `filter_` allows it.

   */

  void log(const Formatter::Context& log_context,

           const StreamInfo::StreamInfo& stream_info) override;

private:

  /**

   * Log a completed request.

   * @param context supplies the necessary context to log.

   * @param stream_info supplies additional information about the request not

   * contained in the request headers.

   */

  virtual void emitLog(const Formatter::Context& context,

                       const StreamInfo::StreamInfo& stream_info) PURE;

  AccessLog::FilterPtr filter_;

};

} // namespace Common

} // namespace AccessLoggers

} // namespace Extensions

} // namespace Envoy