#pragma once

#include <cstdint>

#include <string>

#include "envoy/network/connection.h"

#include "envoy/network/transport_socket.h"

#include "envoy/secret/secret_callbacks.h"

#include "envoy/ssl/handshaker.h"

#include "envoy/ssl/private_key/private_key_callbacks.h"

#include "envoy/ssl/ssl_socket_extended_info.h"

#include "envoy/ssl/ssl_socket_state.h"

#include "envoy/stats/scope.h"

#include "envoy/stats/stats_macros.h"

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

#include "source/common/network/transport_socket_options_impl.h"

#include "source/common/tls/context_impl.h"

#include "source/common/tls/ssl_handshaker.h"

#include "source/common/tls/ssl_socket.h"

#include "source/common/tls/utility.h"

#include "absl/container/node_hash_map.h"

#include "absl/synchronization/mutex.h"

#include "absl/types/optional.h"

#include "openssl/ssl.h"

namespace Envoy {

namespace Extensions {

namespace TransportSockets {

namespace Tls {

class ClientSslSocketFactory : public Network::CommonUpstreamTransportSocketFactory,

                               public Secret::SecretCallbacks,

                               Logger::Loggable<Logger::Id::config> {

public:

  static absl::StatusOr<std::unique_ptr<ClientSslSocketFactory>>

  create(Envoy::Ssl::ClientContextConfigPtr config, Envoy::Ssl::ContextManager& manager,

         Stats::Scope& stats_scope);

  ~ClientSslSocketFactory() override;

  Network::TransportSocketPtr

  createTransportSocket(Network::TransportSocketOptionsConstSharedPtr options,

                        Upstream::HostDescriptionConstSharedPtr) const override;

  bool implementsSecureTransport() const override;

  // Secret::SecretCallbacks

  absl::Status onAddOrUpdateSecret() override;

  Envoy::Ssl::ClientContextSharedPtr sslCtx() override;

protected:

  ClientSslSocketFactory(Envoy::Ssl::ClientContextConfigPtr config,

                         Envoy::Ssl::ContextManager& manager, Stats::Scope& stats_scope,

                         absl::Status& creation_status);

private:

  Envoy::Ssl::ContextManager& manager_;

  Stats::Scope& stats_scope_;

  SslSocketFactoryStats stats_;

  Envoy::Ssl::ClientContextConfigPtr config_;

  mutable absl::Mutex ssl_ctx_mu_;

  Envoy::Ssl::ClientContextSharedPtr ssl_ctx_ ABSL_GUARDED_BY(ssl_ctx_mu_);

};

} // namespace Tls

} // namespace TransportSockets

} // namespace Extensions

} // namespace Envoy