#pragma once

#include "envoy/network/filter.h"

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

namespace Envoy {

namespace Extensions {

namespace NetworkFilters {

namespace Echo {

/**

 * Implementation of a basic echo filter.

 */

class EchoFilter : public Network::ReadFilter, Logger::Loggable<Logger::Id::filter> {

public:

  // Network::ReadFilter

  Network::FilterStatus onData(Buffer::Instance& data, bool end_stream) override;

  Network::FilterStatus onNewConnection() override { return Network::FilterStatus::Continue; }

  void initializeReadFilterCallbacks(Network::ReadFilterCallbacks& callbacks) override {

    read_callbacks_ = &callbacks;

  }

private:

  Network::ReadFilterCallbacks* read_callbacks_{};

};

} // namespace Echo

} // namespace NetworkFilters

} // namespace Extensions

} // namespace Envoy