#pragma once

#include <cstdint>

#include <string>

#include "envoy/grpc/status.h"

namespace Envoy {

namespace Grpc {

/**

 * Grpc::Status utilities.

 */

class Utility {

public:

  /**

   * Returns the gRPC status code from a given HTTP response status code. Ordinarily, it is expected

   * that a 200 response is provided, but gRPC defines a mapping for intermediaries that are not

   * gRPC aware, see https://github.com/grpc/grpc/blob/master/doc/http-grpc-status-mapping.md.

   * @param http_response_status HTTP status code.

   * @return Status::GrpcStatus corresponding gRPC status code.

   */

  static Status::GrpcStatus httpToGrpcStatus(uint64_t http_response_status);

  /**

   * @param grpc_status gRPC status from grpc-status header.

   * @return uint64_t the canonical HTTP status code corresponding to a gRPC status code.

   */

  static uint64_t grpcToHttpStatus(Status::GrpcStatus grpc_status);

  /**

   * @param grpc_status gRPC status from grpc-status header.

   * @return gRPC status string converted from grpc-status.

   */

  static std::string grpcStatusToString(Status::GrpcStatus grpc_status);

};

} // namespace Grpc

} // namespace Envoy