package etunicorn;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.Primary;
import org.springframework.security.authentication.AuthenticationManager;
import org.springframework.security.config.annotation.web.builders.HttpSecurity;
import org.springframework.security.oauth2.config.annotation.configurers.ClientDetailsServiceConfigurer;
import org.springframework.security.oauth2.config.annotation.web.configuration.AuthorizationServerConfigurerAdapter;
import org.springframework.security.oauth2.config.annotation.web.configuration.EnableAuthorizationServer;
import org.springframework.security.oauth2.config.annotation.web.configuration.EnableResourceServer;
import org.springframework.security.oauth2.config.annotation.web.configuration.ResourceServerConfigurerAdapter;
import org.springframework.security.oauth2.config.annotation.web.configurers.AuthorizationServerEndpointsConfigurer;
import org.springframework.security.oauth2.config.annotation.web.configurers.ResourceServerSecurityConfigurer;
import org.springframework.security.oauth2.provider.token.DefaultTokenServices;
import org.springframework.security.oauth2.provider.token.TokenStore;
import org.springframework.security.oauth2.provider.token.store.InMemoryTokenStore;

/**
 * Created by geoffrey on 29/01/17.
 */
@Configuration
public class OAuth2ServerConfiguration {
    private static final String RESOURCE_ID = "etunicornservice";

    @Configuration
    @EnableResourceServer
    protected static class ResourceServerConfiguration extends ResourceServerConfigurerAdapter {

        @Override
        public void configure(ResourceServerSecurityConfigurer resources) {
            resources.resourceId(RESOURCE_ID);
        }

        @Override
        public void configure(HttpSecurity http) throws Exception {
            http.authorizeRequests()
                    .antMatchers("/personne").authenticated();
        }
    }

    @Configuration
    @EnableAuthorizationServer
    protected static class AuthorizationServerConfiguration extends AuthorizationServerConfigurerAdapter {

        private TokenStore tokenStore = new InMemoryTokenStore();

        @Autowired
        @Qualifier("authenticationManagerBean")
        private AuthenticationManager authenticationManager;

        @Autowired
        private CustomUserDetailsService userDetailsService;

        @Override
        public void configure(ClientDetailsServiceConfigurer clients) throws Exception {
            clients
                    .inMemory()
                        .withClient("clientapp")
                            .authorizedGrantTypes("password", "refresh_token")
                            .authorities("USER")
                            .scopes("read", "write")
                            .resourceIds(RESOURCE_ID)
                            .secret("123456");
        }

        @Override
        public void configure(AuthorizationServerEndpointsConfigurer endpoints) throws Exception {
            endpoints
                    .tokenStore(this.tokenStore)
                    .authenticationManager(this.authenticationManager)
                    .userDetailsService(userDetailsService);
        }

        @Bean
        @Primary
        public DefaultTokenServices tokenServices() {
                DefaultTokenServices tokenServices = new DefaultTokenServices();
                tokenServices.setSupportRefreshToken(true);
                tokenServices.setTokenStore(this.tokenStore);
                return tokenServices;
        }
    }

}