package com.aigeo.common.security;

import com.aigeo.company.repository.UserRepository;
import lombok.RequiredArgsConstructor;
import lombok.extern.slf4j.Slf4j;
import org.springframework.security.core.userdetails.UserDetails;
import org.springframework.security.core.userdetails.UserDetailsService;
import org.springframework.security.core.userdetails.UsernameNotFoundException;
import org.springframework.stereotype.Service;

/**
 * Spring Security UserDetailsService 实现
 *
 * @author AIGEO Team
 * @since 1.0.0
 */
@Slf4j
@Service
@RequiredArgsConstructor
public class UserDetailsServiceImpl implements UserDetailsService {

    private final UserRepository userRepository;

    @Override
    public UserDetails loadUserByUsername(String username) throws UsernameNotFoundException {
        log.debug("正在加载用户: {}", username);
        
        return userRepository.findByUsername(username)
                .orElseThrow(() -> {
                    log.warn("用户不存在: {}", username);
                    return new UsernameNotFoundException("用户不存在: " + username);
                });
    }
}