/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */

package ee.tlu.htk.dippler.managers;

import ee.tlu.htk.dippler.entities.Client;
import javax.ejb.Stateless;
import javax.persistence.Query;
import javax.persistence.EntityManager;
import javax.persistence.NoResultException;
import javax.persistence.NonUniqueResultException;
import javax.persistence.PersistenceContext;

/**
 *
 * @author metz
 */
@Stateless
public class ClientManager implements ClientManagerLocal {

    @PersistenceContext
    private EntityManager em;

    @Override
    public Long validate(String username, String password) {
        Query q = em.createNamedQuery("Client.findClient");
        q.setParameter("username", username);
        q.setParameter("password", password);
        try {
            Client client = (Client) q.getSingleResult();
            // post validate
            if (client.getUsername().equals(username) && client.getPassword().equals(password)) {
                return client.getId();
            }
        } catch (NoResultException nre) {
            nre.printStackTrace(System.err);
        } catch (NonUniqueResultException nur) {
            nur.printStackTrace(System.err);
        } catch (Exception e) {
            e.printStackTrace(System.err);
        }
        return null;
    }

    @Override
    public Client getClient(Long id) {
        if ( id > 0 ) {
            return em.find(Client.class, id);
        }
        return null;
    }

    @Override
    public String getOrganization(Client client) {
        return client.getOrganization().getName();
    }

    @Override
    public boolean isTrusted(Long id) {
        Client client = getClient(id);
        if ( client != null ) {
            return client.getTrusted();
        }
        return Boolean.FALSE;
    }
 
}