#pragma once

#include "envoy/extensions/formatter/file_content/v3/file_content.pb.h"

#include "envoy/formatter/substitution_formatter_base.h"

#include "envoy/server/factory_context.h"

namespace Envoy {

namespace Extensions {

namespace Formatter {

/**

 * CommandParserFactory for the %FILE_CONTENT(/path/to/file)% formatter.

 *

 * Reads the contents of the specified file and watches for changes on disk,

 * so that updates are automatically reflected in subsequent format calls.

 */

class FileContentFormatterFactory : public Envoy::Formatter::CommandParserFactory {

public:

  Envoy::Formatter::CommandParserPtr

  createCommandParserFromProto(const Protobuf::Message& config,

                               Server::Configuration::GenericFactoryContext& context) override;

  ProtobufTypes::MessagePtr createEmptyConfigProto() override;

  std::string name() const override;

};

} // namespace Formatter

} // namespace Extensions

} // namespace Envoy