DestructionNotificationHub.hpp

#ifndef DESTRUCTIONNOTIFICATIONHUB_HPP
#define DESTRUCTIONNOTIFICATIONHUB_HPP

#include <set>
#include <map>
#include "DestructionObserver.hpp"

class DestructionNotifier;
class DestructionNotificationHub {
public:
    static bool registerObserver(DestructionObserver* observer, std::set<const DestructionNotifier*>&& listenedPointers = {});
    static bool registerObserver(DestructionObserver* observer, std::set<const DestructionNotifier*>& listenedPointers);

    static bool unregisterObserver(DestructionObserver* observer);

protected:
    friend DestructionNotifier;
    static void notifyDestruction(const DestructionNotifier* ptr);

private:
    static std::map<DestructionObserver*, std::set<const DestructionNotifier*>> observers;

    DestructionNotificationHub() {}
};

#endif // DESTRUCTIONNOTIFICATIONHUB_HPP