// Last edited on 2014-12-15 14:45:06 by stolfilocal

package quack;

import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;

public class SessionTableImpl implements SessionTable {

    List<Session> sessions;

    public SessionTable initialize() {
        this.sessions = new ArrayList<Session>();
        return this;
    }

    @Override
    public void add(Session session) {
        Iterator<Session> it = sessions.iterator();
        while (it.hasNext()) {
            Session currentSession = (Session) it.next();
            // se nome de usuario ja existir, remove
            if (currentSession.getUser().getLoginName().equals(session.getUser().getLoginName())){
                it.remove();
            }
        }
        sessions.add(session);
    }

    @Override
    public void delete(Session session) {
        for (int i=0 ; i<sessions.size() ; i++) {
            Session currentSession = sessions.get(i);
            if (currentSession.getCookie().equals(session.getCookie())){
                sessions.remove(i);
                break;
            }
        }
    }

    @Override
    public Session getSessionByUser(User user) {
                
        Session session = null;
                
        for (int i=0 ; i<sessions.size() ; i++) {
            Session currentSession = sessions.get(i);
            if (currentSession.getUser() == user) {
                session = currentSession;
                break;
            }
        }
        return session;
    }

    @Override
    public Session getSessionByCookie(String cookie) {
                
        Session session = null;
        for (int i=0 ; i<sessions.size() ; i++) {
            Session currentSession = sessions.get(i);
            if (currentSession.getCookie().equals(cookie)) {
                session = currentSession;
                break;
            }
        }
        return session;
    }

    @Override
    public int getSessionCount() {
        return sessions.size();
    }
}