/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set et sw=2 ts=2: */
/***************************************************************************
 *            session.cc
 *
 *  Tue Dec 15 13:36:49 CET 2009
 *  Copyright 2009 Bent Bisballe Nyeng
 *  deva@aasimon.org
 ****************************************************************************/

/*
 *  This file is part of Pracro.
 *
 *  Pracro is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2 of the License, or
 *  (at your option) any later version.
 *
 *  Pracro is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with Pracro; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA.
 */
#include "session.h"

#include <stdlib.h>

#include "journal_commit.h"

static std::string newSessionID(std::map<std::string, Session *> &sessions)
{
  char sid[32];
  do {
    snprintf(sid, sizeof(sid)-1, "%d", rand());
  } while(sessions.find(sid) != sessions.end());
  return sid;
}


Session::Session(std::string sessionid)
{
  _id = sessionid;
  journal = NULL;
}

std::string Session::id()
{
  return _id;
}

Sessions::Sessions()
{
}

Session *Sessions::newSession()
{
  Session *session = new Session(newSessionID(sessions));
  sessions[session->id()] = session;
  return session;
}

Session *Sessions::session(std::string sessionid)
{
  if(sessions.find(sessionid) == sessions.end()) return NULL;
  return sessions[sessionid];
}

Session *Sessions::takeSession(std::string sessionid)
{
  Session *s = session(sessionid);
  if(s) {
    sessions.erase(sessionid);
  }
  return s;
}

void Sessions::deleteSession(std::string sessionid)
{
  Session *s = takeSession(sessionid);
  if(s) delete s;
}

#ifdef TEST_SESSION
//deps:
//cflags:
//libs:
#include <test.h>

TEST_BEGIN;
Sessions sessions;

srand(0);
Session *s1 = sessions.newSession();
srand(0);
Session *s2 = sessions.newSession();

TEST_NOTEQUAL(s1->id(), s2->id(), "Testing if IDs are unique.");

TEST_END;

#endif/*TEST_SESSION*/