#include "HTTPSessions.h"
#include "HTTPSession.h"
#include "Log.h"
#include <uuid/uuid.h>

namespace http {

   HTTPSession * HTTPSessions::findSessionByHeader(core::Header &header, core::Response &response) {   
      std::string sessionId = header.getCookie("sessionId");
      HTTPSession *session = findSessionById(sessionId, response);      
      return session;
   }

   HTTPSession * HTTPSessions::findSessionById(std::string sessionId, core::Response &response) {   
      HTTPSession *httpSession;
      if(sessionId.length() > 0) {
         httpSession = (HTTPSession *)sessions.find(sessionId)->second;
      } else {
         httpSession = createHTTPSession();
         response.setCookie("sessionId", httpSession->getSessionId());
      }      
      return httpSession;
   }

   HTTPSession * HTTPSessions::createHTTPSession() {
      HTTPSession *httpSession = new HTTPSession(generateSessionId());
      sessions.insert(std::make_pair(httpSession->getSessionId(), httpSession));
      return httpSession;
   }

   std::string HTTPSessions::generateSessionId() {
      uuid_t uuid;
      uuid_generate_random(uuid);
      char uuid_s[37];
      uuid_unparse(uuid, uuid_s);
      return uuid_s;
   }
   
}