#include "Subscription.h"
#include "TCPSession.h"

namespace core {

   Subscription::Subscription(std::string id) : id(id), owner(NULL) {}

   Subscription::Subscription(std::string id, TCPSession &session) : id(id), owner(&session) {}

   Subscription::~Subscription() {
      std::stringstream out;
      out << "cancel:" << id << std::endl;
      for(auto subscriber : subscribers) {
         subscriber->write(out.str());
      }
   }

   int Subscription::subscribe(TCPSession &session) {
   	onSubscribe(session);
      subscribers.push_back(&session);
	   return 1;
   }

   int Subscription::unsubscribe(TCPSession &session) {
      for(auto subscriber = subscribers.begin(); subscriber < subscribers.end(); ++subscriber) {
         if(*subscriber == &session) {
            subscribers.erase(subscriber++);
            return 1;
         }
      }
      return 0;
   }

   int Subscription::process(coreutils::ZString &request, std::stringstream &out) {
      out << "event:" << request[1] << ":" << request[2] << std::endl;
      return 1;
   }

   int Subscription::event(std::stringstream &out) {
      for(auto subscriber = subscribers.begin(); subscriber < subscribers.end(); ++subscriber)
        (*subscriber)->write(out.str());
      return 1;
   }

	int Subscription::onSubscribe(TCPSession &session) {
      return 0;
   }
	
}