erp-imprimelibros/src/main/java/com/imprimelibros/erp/config/JpaAuditConfig.java

// JpaAuditConfig.java
package com.imprimelibros.erp.config;

import java.util.Optional;

import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.data.domain.AuditorAware;
import org.springframework.data.jpa.repository.config.EnableJpaAuditing;
import org.springframework.security.core.context.SecurityContextHolder;
import org.springframework.security.core.userdetails.UserDetails;

import com.imprimelibros.erp.users.User;
import com.imprimelibros.erp.users.UserDao;

@Configuration
@EnableJpaAuditing(auditorAwareRef = "auditorAware")
public class JpaAuditConfig {

    @Bean
    public AuditorAware<User> auditorAware(UserDao userDao) {
        return () -> {
            var auth = SecurityContextHolder.getContext().getAuthentication();
            if (auth == null || !auth.isAuthenticated())
                return Optional.empty();

            Object principal = auth.getPrincipal();

            if (principal instanceof User u)
                return Optional.of(u);

            if (principal instanceof UserDetails ud) {
                return userDao.findByUserNameIgnoreCase(ud.getUsername());
            }

            if (principal instanceof String username && !"anonymousUser".equals(username)) {
                return userDao.findByUserNameIgnoreCase(username);
            }

            return Optional.empty();
        };
    }
}