package be.mct.model;

import be.mct.entities.Beer;
import be.mct.entities.BeerLover;
import java.util.List;
import java.util.Map;
import javax.persistence.EntityManager;
import javax.persistence.PersistenceContext;

public class BeerFacade {
    @PersistenceContext
    private EntityManager em;
    private String qry;
    private List<Beer> beers;
    private Beer detailsBeer;
    private int offset = 0;
    private int maxResults = 3;
    private Map<String, Object> context;

    public List<Beer> getBeers(){

        qry = "SELECT b FROM Beer b ORDER BY b.id DESC";

        beers = em
                .createQuery(qry)
                .setFirstResult(offset)
                .setMaxResults(maxResults)
                .getResultList();
        return beers;
    }

    public List<Beer> getOwnBeers(){
        BeerLover identity = (BeerLover) context.get("identity");
        qry = "SELECT b FROM Beer b WHERE b.owner.id = " + identity.getId();

        beers = em
                .createQuery(qry)
                .setFirstResult(offset)
                .setMaxResults(maxResults)
                .getResultList();
        return beers;
    }

    public int getMaxResults() {
        return maxResults;
    }

    public void setMaxResults(int maxResults) {
        this.maxResults = maxResults;
    }

    public int getOffset() {
        return offset;
    }

    public void setOffset(int offset) {
        this.offset = offset;
    }

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

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

    public Beer getDetailsBeer() {
        return detailsBeer;
    }

    public void setDetailsBeer(Beer detailsBeer) {
        this.detailsBeer = detailsBeer;
    }
}