package org.openstack.atlas.service.domain.repository;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.openstack.atlas.service.domain.entities.LoadBalancerStatusHistory;
import org.openstack.atlas.service.domain.entities.UserPages;
import org.springframework.stereotype.Repository;
import org.springframework.transaction.annotation.Transactional;

import javax.persistence.EntityManager;
import javax.persistence.PersistenceContext;
import javax.persistence.Query;
import java.util.ArrayList;
import java.util.List;

@Repository
@Transactional
public class LoadBalancerStatusHistoryRepository {

    final Log LOG = LogFactory.getLog(LoadBalancerStatusHistoryRepository.class);
    @PersistenceContext(unitName = "loadbalancing")
    private EntityManager entityManager;
    private final Integer PAGE_SIZE = 10;
    private final int MAX_SERVICE_EVENT = 20;

    public LoadBalancerStatusHistoryRepository() {
    }

    public LoadBalancerStatusHistoryRepository(EntityManager em) {
        this.entityManager = em;
    }

    public LoadBalancerStatusHistory save(LoadBalancerStatusHistory loadBalancerStatusHistory) {
        entityManager.persist(loadBalancerStatusHistory);
        return loadBalancerStatusHistory;
    }

    public List<LoadBalancerStatusHistory> getStateHistoryForAccount(int accountId) {
        List<LoadBalancerStatusHistory> lbshlist = new ArrayList<LoadBalancerStatusHistory>();
        String qStr = "FROM LoadBalancerStatusHistory u where u.accountId = :aid";
        Query q = entityManager.createQuery(qStr).setParameter("aid", accountId);
        lbshlist = q.getResultList();
        if (lbshlist.size() <= 0) {
            return new ArrayList<LoadBalancerStatusHistory>() ;
        } else {
            return lbshlist;
        }
    }
}