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package be.mct.actions;

import be.mct.entities.Beer;
import be.mct.entities.BeerLover;
import java.util.Map;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.annotation.Resource;
import javax.persistence.EntityManager;
import javax.persistence.PersistenceContext;
import javax.transaction.UserTransaction;

/**
 *
 * @author Tommy
 */
public class UpdateUserAction {
    private Beer favBeer;
    private Map<String, Object> context;
    @PersistenceContext
    private EntityManager em;
    @Resource
    private UserTransaction tx;

    public Map<String, Object> getContext() {
        return context;
    }

    public void setContext(Map<String, Object> context) {
        this.context = context;
    }

    public Beer getFavBeer() {
        return favBeer;
    }

    public void setFavBeer(Beer favBeer) {
        this.favBeer = favBeer;
    }
    public EntityManager getEm() {
        return em;
    }

    public void setEm(EntityManager em) {
        this.em = em;
    }

    public UserTransaction getTx() {
        return tx;
    }

    public void setTx(UserTransaction tx) {
        this.tx = tx;
    }
    private boolean NotIsFavorite(BeerLover bl) { if(bl.getFavorites().contains(favBeer)) { return false;}else{ return true; }}
    public String execute() {
        try {
            tx.begin();
            BeerLover tmp = (BeerLover)context.get("identity");
            if(NotIsFavorite(tmp)) {
                tmp.getFavorites().add(favBeer);
                em.merge(tmp);
                tx.commit();
            }else{
                return "";
            }

        } catch (Exception ex) {
            try {
                tx.rollback();
                Logger.getLogger(SignupAction.class.getName()).log(Level.SEVERE, null, ex);

            } catch (Exception exl) {
            }
            return "";
        }
        return "";
    }
}