Presence.hpp

#ifndef _DITTO_PRESENCE_MANAGER_
#define _DITTO_PRESENCE_MANAGER_
 
#include "DittoHandleWrapper.hpp"
#include "PresenceGraph.hpp"
 
#include <memory>
#include <string>
 
namespace ditto {
class DittoHandleWrapper;
 
typedef std::function<void(PresenceGraph)> PresenceCallback;
 
typedef std::weak_ptr<PresenceCallback> PresenceObserverInternal;
typedef std::shared_ptr<PresenceCallback> PresenceObserver;
 
class Presence {
  friend class Ditto;
 
public:
  PresenceObserver observe(PresenceCallback presence_cb);
  PresenceGraph exec();
 
private:
  Presence(std::shared_ptr<DittoHandleWrapper> ditto_handle_wrapper);
  static void on_event(void *ctx, const char *graph);
 
  void on_presence(PresenceGraph presence_graph);
 
  std::shared_ptr<DittoHandleWrapper> ditto_handle_wrapper;
  std::vector<PresenceObserverInternal> observers;
  bool registered;
};
} // namespace ditto
#endif