UserDetailsServiceImpl.java

package com.flogin.backend.service.auth;

import com.flogin.backend.entity.User;
import com.flogin.backend.repository.UserRepository;
import lombok.RequiredArgsConstructor;
import org.springframework.security.core.userdetails.UserDetails;
import org.springframework.security.core.userdetails.UsernameNotFoundException;
import org.springframework.stereotype.Service;

@Service
@RequiredArgsConstructor
public class UserDetailsServiceImpl implements IUserDetailService {

    private final UserRepository userRepository;

    @Override
    public UserDetails loadUserByUsername(String username) throws UsernameNotFoundException {
        User user = userRepository.findByUsername(username)
            .orElseThrow(() -> new UsernameNotFoundException("User not found: " + username));
        return org.springframework.security.core.userdetails.User.builder()
            .username(user.getUsername())
            .password(user.getPassword())
            .disabled(!user.getActive())
            .authorities("ROLE_" + user.getRole().toString())
            .build();
    }
}