src/main/java/com/dalab/autocompliance/config/SpringSecurityAuditorAware.java

package com.dalab.autocompliance.config;

import org.springframework.data.domain.AuditorAware;
import org.springframework.security.core.Authentication;
import org.springframework.security.core.context.SecurityContextHolder;
import org.springframework.security.core.userdetails.User;
import org.springframework.stereotype.Component;

import java.util.Optional;

@Component("auditorProvider")
public class SpringSecurityAuditorAware implements AuditorAware<String> {

    @Override
    public Optional<String> getCurrentAuditor() {
        Authentication authentication = SecurityContextHolder.getContext().getAuthentication();

        if (authentication == null || !authentication.isAuthenticated() || authentication.getPrincipal() instanceof String && "anonymousUser".equals(authentication.getPrincipal())) {
            return Optional.of("system"); // Default to system if no user or anonymous
        }

        Object principal = authentication.getPrincipal();
        if (principal instanceof User) {
            return Optional.of(((User) principal).getUsername());
        } else if (principal instanceof String) {
            return Optional.of((String) principal);
        }
        // For other principal types, you might need custom logic or return a default
        return Optional.of("system"); 
    }
}