package id.co.koperasisyariah212.specification;

import id.co.koperasisyariah212.criteria.SearchCriteria;
import id.co.koperasisyariah212.entity.UserAdmin;
import javax.persistence.criteria.CriteriaBuilder;
import javax.persistence.criteria.CriteriaQuery;
import javax.persistence.criteria.Predicate;
import javax.persistence.criteria.Root;
import org.springframework.data.jpa.domain.Specification;

/**
 *
 * @author fariz
 */
public class UserAdministratorSpecification implements Specification<UserAdmin> {

    private final SearchCriteria criteria;

    public UserAdministratorSpecification(SearchCriteria criteria) {
        this.criteria = criteria;
    }

    @Override
    public Predicate toPredicate(Root<UserAdmin> root, CriteriaQuery<?> cq, CriteriaBuilder builder) {
        if ("email".equalsIgnoreCase(criteria.getKey())) {
            return builder.like(builder.lower(
                    root.get("user").get("email")),
                    "%" + criteria.getValue().toString().toLowerCase() + "%");
        }
        if (criteria.getOperation().equalsIgnoreCase(">")) {
            return builder.greaterThanOrEqualTo(
                    root.<String>get(criteria.getKey()), criteria.getValue().toString());
        } else if (criteria.getOperation().equalsIgnoreCase("<")) {
            return builder.lessThanOrEqualTo(
                    root.<String>get(criteria.getKey()), criteria.getValue().toString());
        } else if (criteria.getOperation().equalsIgnoreCase(":")) {
            if (root.get(criteria.getKey()).getJavaType() == String.class) {
                return builder.like(
                        root.<String>get(criteria.getKey()), "%" + criteria.getValue() + "%");
            } else {
                return builder.equal(root.get(criteria.getKey()), criteria.getValue());
            }
        }
        return null;
    }

}