package <%= packageName %>.config;

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.Authentication;
import org.springframework.security.core.context.SecurityContextHolder;

import java.util.Optional;

/**
 * Configures JPA Auditing so that @CreatedBy / @LastModifiedBy fields are
 * automatically populated with the currently authenticated user's email.
 */
@Configuration
@EnableJpaAuditing(auditorAwareRef = "auditorProvider")
public class AuditingConfig {

    @Bean
    public AuditorAware<String> auditorProvider() {
        return () -> Optional.ofNullable(SecurityContextHolder.getContext().getAuthentication())
                .filter(Authentication::isAuthenticated)
                .filter(auth -> !"anonymousUser".equals(auth.getPrincipal()))
                .map(Authentication::getName);
    }
}