import org.scriptonbasestar.oauth.client.*;
import org.scriptonbasestar.oauth.client.model.*;
import org.scripton.oauth.connector.naver.*;

public class NaverOAuthExample {
    public static void main(String[] args) {
        // 1. OAuth 설정
        OAuth2NaverConfig config = OAuth2NaverConfig.builder()
            .clientId("YOUR_CLIENT_ID")
            .clientSecret("YOUR_CLIENT_SECRET")
            .redirectUri("http://localhost:8080/callback")
            .scope("profile,email")
            .build();

        // 2. 인증 URL 생성
        OAuth2NaverGenerateAuthorizeEndpointFunction authFunction =
            new OAuth2NaverGenerateAuthorizeEndpointFunction(config);

        State state = new RandomStringStateGenerator().generate("NAVER");
        String authUrl = authFunction.generate(state);

        System.out.println("인증 URL: " + authUrl);

        // 3. 사용자 인증 후 받은 code로 액세스 토큰 발급
        Verifier code = new Verifier("RECEIVED_CODE_FROM_CALLBACK");

        OAuth2NaverAccesstokenFunction tokenFunction =
            new OAuth2NaverAccesstokenFunction(config, tokenExtractor, tokenStorage);

        OAuth2NaverTokenRes token = tokenFunction.issue(code, state);

        System.out.println("Access Token: " + token.getAccessToken());

        // 4. 사용자 정보 조회
        OAuth2ResourceFunction<String> resourceFunction =
            new DefaultOAuth2ResourceFunction(config.getResourceProfileUri());

        String userProfile = resourceFunction.run(token.getAccessToken());
        System.out.println("User Profile: " + userProfile);
    }
}

@Configuration
public class OAuth2Config {

    @Bean
    public OAuth2NaverConfig naverConfig() {
        return OAuth2NaverConfig.builder()
            .clientId("${oauth.naver.client-id}")
            .clientSecret("${oauth.naver.client-secret}")
            .redirectUri("${oauth.naver.redirect-uri}")
            .scope("profile,email")
            .build();
    }

    @Bean
    public OAuth2NaverAccesstokenFunction naverTokenFunction(
            OAuth2NaverConfig config,
            TokenExtractor<OAuth2NaverTokenRes> tokenExtractor,
            TokenStorage tokenStorage) {
        return new OAuth2NaverAccesstokenFunction(config, tokenExtractor, tokenStorage);
    }
}