/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
/*
 * Copyright (c) 2013-2022 Regents of the University of California.
 *
 * This file is part of ndn-cxx library (NDN C++ library with eXperimental eXtensions).
 *
 * ndn-cxx library is free software: you can redistribute it and/or modify it under the
 * terms of the GNU Lesser General Public License as published by the Free Software
 * Foundation, either version 3 of the License, or (at your option) any later version.
 *
 * ndn-cxx library is distributed in the hope that it will be useful, but WITHOUT ANY
 * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
 * PARTICULAR PURPOSE.  See the GNU Lesser General Public License for more details.
 *
 * You should have received copies of the GNU General Public License and GNU Lesser
 * General Public License along with ndn-cxx, e.g., in COPYING.md file.  If not, see
 * <http://www.gnu.org/licenses/>.
 *
 * See AUTHORS.md for complete list of ndn-cxx authors and contributors.
 */

#ifndef NDN_CXX_TRANSPORT_TCP_TRANSPORT_HPP
#define NDN_CXX_TRANSPORT_TCP_TRANSPORT_HPP

#include "ndn-cxx/transport/transport.hpp"

#include <boost/asio/ip/tcp.hpp>

namespace ndn {

namespace detail {

template<typename BaseTransport, typename Protocol>
class StreamTransportImpl;

template<typename BaseTransport, typename Protocol>
class StreamTransportWithResolverImpl;

} // namespace detail

/** \brief A transport using TCP socket.
 */
class TcpTransport : public Transport
{
public:
  explicit
  TcpTransport(const std::string& host, const std::string& port = "6363");

  ~TcpTransport() override;

  void
  connect(boost::asio::io_service& ioService, ReceiveCallback receiveCallback) override;

  void
  close() override;

  void
  pause() override;

  void
  resume() override;

  void
  send(const Block& wire) override;

  /** \brief Create transport with parameters defined in URI.
   *  \throw Transport::Error incorrect URI or unsupported protocol is specified
   */
  static shared_ptr<TcpTransport>
  create(const std::string& uri);

NDN_CXX_PUBLIC_WITH_TESTS_ELSE_PRIVATE:
  static std::pair<std::string, std::string>
  getSocketHostAndPortFromUri(const std::string& uri);

private:
  std::string m_host;
  std::string m_port;

  using Impl = detail::StreamTransportWithResolverImpl<TcpTransport, boost::asio::ip::tcp>;
  friend class detail::StreamTransportImpl<TcpTransport, boost::asio::ip::tcp>;
  friend Impl;
  shared_ptr<Impl> m_impl;
};

} // namespace ndn

#endif // NDN_CXX_TRANSPORT_TCP_TRANSPORT_HPP