//
//  rtsp_include.hpp
//
//  Copyright (c) 2019 2020 Andrea Bondavalli. All rights reserved.
//
//  This program is free software: you can redistribute it and/or modify
//  it under the terms of the GNU General Public License as published by
//  the Free Software Foundation, either version 3 of the License, or
//  any later version.
//
//  This program 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 General Public License for more details.
//
//  You should have received a copy of the GNU General Public License
//  along with this program.  If not, see <http://www.gnu.org/licenses/>.
//

#ifndef _RTSP_CLIENT_HPP_
#define _RTSP_CLIENT_HPP_

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

struct RtspSource {
  std::string id;
  std::string source;
  std::string address;
  std::string sdp;
};

class RtspClient {
 public:
  constexpr static uint16_t max_body_length = 4096;  // byte
  constexpr static uint16_t client_timeout = 10;     // sec
  constexpr static const char dft_port[] = "554";

  using Observer = std::function<void(const std::string& name,
                                      const std::string& domain,
                                      const RtspSource& source)>;

  static std::pair<bool, RtspSource> process(Observer callback,
                                             const std::string& name,
                                             const std::string& domain,
                                             const std::string& path,
                                             const std::string& address,
                                             const std::string& port = dft_port,
                                             bool wait_for_updates = true);

  static bool is_active(const std::string& name, const std::string& domain);
  static void stop(const std::string& name, const std::string& domain);
  static void stop_all();
  static std::pair<bool, RtspSource> describe(
      const std::string& path,
      const std::string& address,
      const std::string& port = dft_port);

  inline static std::atomic<uint16_t> g_seq_number{0};
  inline static std::map<
      std::pair<std::string /*name*/, std::string /*domain*/>,
      boost::asio::ip::tcp::iostream* /*stream*/>
      g_active_clients;
  inline static std::mutex g_mutex;
};

#endif
