package com.sonymusic.dx.dxadvsearchservice.service;

import java.util.List;

import org.springframework.stereotype.Service;

import com.sonymusic.dx.dxadvsearchservice.dto.ConfigurationDTO;
import com.sonymusic.dx.persistence.gras.Configuration;

import jakarta.persistence.EntityManager;
import jakarta.persistence.PersistenceContext;
import jakarta.persistence.TypedQuery;
import jakarta.persistence.criteria.CriteriaBuilder;
import jakarta.persistence.criteria.CriteriaQuery;
import jakarta.persistence.criteria.Root;

@Service
public class ConfigurationService {

    @PersistenceContext(name = "dx-gras-persistence")
    private  EntityManager em;

    public  List<ConfigurationDTO> getConfigurationList() {

        CriteriaBuilder cb = em.getCriteriaBuilder();
        CriteriaQuery<ConfigurationDTO> cq=cb.createQuery(ConfigurationDTO.class);
        Root<Configuration> root =cq.from(Configuration.class);
        cq.select(cb.construct(
                ConfigurationDTO.class,
                root.get("configKey"),
                root.get("configName")
        ));
        cq.orderBy(cb.asc(root.get("configName")));
        cq.distinct(true);
        TypedQuery<ConfigurationDTO> query = em.createQuery(cq);

        List<ConfigurationDTO> resultSet = query.getResultList();

        return resultSet;

    }
}