@Service
public class UserDetailServiceImpl implements UserDetailsService {

    @Autowired
    private ClientEntityRepository clientEntityRepository;

    @Override
    public UserDetails loadUserByUsername(String userName) throws UsernameNotFoundException {
        ClientEntity clientEntity = clientEntityRepository.findByUsername(userName);
        if(clientEntity == null){
            throw new UsernameNotFoundException("UserName "+userName+" not found");
        }
        return new UserDetailImpl(clientEntity);

    }

}

@Configuration
@EnableWebSecurity
@EnableGlobalMethodSecurity(prePostEnabled = true)
public class SecurityConfig extends WebSecurityConfigurerAdapter {

    @Autowired
    private ClientDetailsService clientDetailsService;

    @Autowired
    private ClientEntityWithUserDetailServiceImpl clientEntityWithUserDetailServiceImpl;

    @Override
    protected void configure(AuthenticationManagerBuilder auth) throws Exception {
        auth.userDetailsService(clientEntityWithUserDetailServiceImpl)
                .passwordEncoder(passwordEncoder());
    }


    @Bean
    public PasswordEncoder passwordEncoder() {
        return new BCryptPasswordEncoder(8);
    }


    @Override
    @Order(Ordered.HIGHEST_PRECEDENCE)
    protected void configure(HttpSecurity http) throws Exception {
        http
                .sessionManagement()
                .sessionCreationPolicy(SessionCreationPolicy.STATELESS)
                .and()
                .authorizeRequests()
                .formLogin().defaultSuccessUrl("/hi").permitAll();
    }

    @Override
    @Bean
    public AuthenticationManager authenticationManagerBean() throws Exception {
        return super.authenticationManagerBean();
    }

    @Autowired
    private DataSource dataSource;
    @Bean
    public JdbcTokenStore tokenStore() {
        return new JdbcTokenStore(dataSource);
    }


    @Bean
    @Autowired
    public TokenStoreUserApprovalHandler userApprovalHandler(TokenStore tokenStore){
        TokenStoreUserApprovalHandler handler = new TokenStoreUserApprovalHandler();
        handler.setTokenStore(tokenStore);
        handler.setRequestFactory(new DefaultOAuth2RequestFactory(clientDetailsService));
        handler.setClientDetailsService(clientDetailsService);
        return handler;
    }

    @Bean
    @Autowired
    public ApprovalStore approvalStore(TokenStore tokenStore) throws Exception {
        TokenApprovalStore store = new TokenApprovalStore();
        store.setTokenStore(tokenStore);
        return store;
    }
}