package com.petshop.backend.security;

import com.petshop.backend.entity.User;
import com.petshop.backend.repository.UserRepository;
import org.springframework.security.authentication.DisabledException;
import org.springframework.security.core.authority.SimpleGrantedAuthority;
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;

import java.util.Collections;

@Service
public class UserDetailsServiceImpl implements UserDetailsService {

    private final UserRepository userRepository;

    public UserDetailsServiceImpl(UserRepository userRepository) {
        this.userRepository = userRepository;
    }

    @Override
    public UserDetails loadUserByUsername(String username) throws UsernameNotFoundException {
        User user = userRepository.findByUsername(username)
                .orElseThrow(() -> new UsernameNotFoundException("User not found: " + username));

        if (user.getActive() == null || !user.getActive()) {
            throw new DisabledException("User account is inactive");
        }

        return new org.springframework.security.core.userdetails.User(
                user.getUsername(),
                user.getPassword(),
                Collections.singletonList(new SimpleGrantedAuthority("ROLE_" + user.getRole().name()))
        );
    }
}
