package stirling.software.SPDF.config.security;

import java.util.Collection;
import java.util.Set;
import java.util.stream.Collectors;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.autoconfigure.condition.ConditionalOnProperty;
import org.springframework.security.core.GrantedAuthority;
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 stirling.software.SPDF.model.Authority;
import stirling.software.SPDF.model.User;
import stirling.software.SPDF.repository.UserRepository;

@Service
public class CustomUserDetailsService implements UserDetailsService {

    @Autowired
    private UserRepository userRepository;

    @Override
    public UserDetails loadUserByUsername(String username) throws UsernameNotFoundException {
        User user = userRepository.findByUsername(username)
            .orElseThrow(() -> new UsernameNotFoundException("No user found with username: " + username));

        return new org.springframework.security.core.userdetails.User(
            user.getUsername(),
            user.getPassword(),
            user.isEnabled(),
            true, true, true,
            getAuthorities(user.getAuthorities())
        );
    }

    private Collection<? extends GrantedAuthority> getAuthorities(Set<Authority> authorities) {
        return authorities.stream()
            .map(authority -> new SimpleGrantedAuthority(authority.getAuthority()))
            .collect(Collectors.toList());
    }
}