/*
 * This file is part of the Owl Positioning System (OwlPS).
 * OwlPS is a project of the University of Franche-Comté
 * (Université de Franche-Comté), France.
 */


#ifndef _OWLPS_POSITIONING_OUTPUTNETWORKSOCKET_HH_
#define _OWLPS_POSITIONING_OUTPUTNETWORKSOCKET_HH_

#include "outputmedium.hh"

#include <string>
#include <stdint.h> // <cstdint> is not C++ 98 compliant
#include <arpa/inet.h>
#include <netinet/in.h>

/// Parent class for all output media that use network sockets
class OutputNetworkSocket: public OutputMedium
{
protected:
  int sockfd ;
  std::string remote_host ;
  uint_fast16_t remote_port ;

  struct sockaddr_in server_info ;
  struct sockaddr_in client_info ;

  /** @name Operations */
  //@{
  /// Initialises the socket
  /**
   * You are required to call this function from the constructor of any
   * derived class.
   */
  virtual bool init_socket(void) = 0 ;
  /// Sends a string through the socket
  virtual bool send_data(const std::string &data) const = 0 ;
  //@}

public:
  OutputNetworkSocket(const std::string &_remote_host,
                      const uint_fast16_t _remote_port):
    sockfd(-1), remote_host(_remote_host), remote_port(_remote_port) {}
  ~OutputNetworkSocket(void) ;

  /** @name Operations */
  //@{
  /// Sends a list of results through the socket
  void write(const ResultList &results) ;
  /// Sends a single result through the socket
  void write(const Result &result) ;
  /// Closes the socket
  bool close_socket(void) ;
  //@}
} ;

#endif // _OWLPS_POSITIONING_OUTPUTNETWORKSOCKET_HH_