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#ifndef GRPC_INTERNAL_CPP_SERVER_SECURE_SERVER_CREDENTIALS_H
#define GRPC_INTERNAL_CPP_SERVER_SECURE_SERVER_CREDENTIALS_H

#include <memory>

#include <grpc++/security/server_credentials.h>

#include <grpc/grpc_security.h>

#include "src/cpp/server/thread_pool_interface.h"

namespace grpc {

class AuthMetadataProcessorAyncWrapper GRPC_FINAL {
 public:
  static void Destroy(void* wrapper);

  static void Process(void* wrapper, grpc_auth_context* context,
                      const grpc_metadata* md, size_t num_md,
                      grpc_process_auth_metadata_done_cb cb, void* user_data);

  AuthMetadataProcessorAyncWrapper(
      const std::shared_ptr<AuthMetadataProcessor>& processor)
      : thread_pool_(CreateDefaultThreadPool()), processor_(processor) {}

 private:
  void InvokeProcessor(grpc_auth_context* context, const grpc_metadata* md,
                       size_t num_md, grpc_process_auth_metadata_done_cb cb,
                       void* user_data);
  std::unique_ptr<ThreadPoolInterface> thread_pool_;
  std::shared_ptr<AuthMetadataProcessor> processor_;
};

class SecureServerCredentials GRPC_FINAL : public ServerCredentials {
 public:
  explicit SecureServerCredentials(grpc_server_credentials* creds)
      : creds_(creds) {}
  ~SecureServerCredentials() GRPC_OVERRIDE {
    grpc_server_credentials_release(creds_);
  }

  int AddPortToServer(const grpc::string& addr,
                      grpc_server* server) GRPC_OVERRIDE;

  void SetAuthMetadataProcessor(
      const std::shared_ptr<AuthMetadataProcessor>& processor) GRPC_OVERRIDE;

 private:
  grpc_server_credentials* creds_;
  std::unique_ptr<AuthMetadataProcessorAyncWrapper> processor_;
};

}  // namespace grpc

#endif  // GRPC_INTERNAL_CPP_SERVER_SECURE_SERVER_CREDENTIALS_H