[Feat] 요약 기능 구현

src/main/java/com/beotkkot/qtudy/controller/auth/AuthController.java

@@ -4,7 +4,6 @@
 import com.beotkkot.qtudy.dto.auth.KakaoUserInfo;
 import com.beotkkot.qtudy.dto.auth.UserResponse;
 import com.beotkkot.qtudy.service.auth.AuthService;
-import jakarta.servlet.http.HttpSession;
 import lombok.RequiredArgsConstructor;
 import org.springframework.http.HttpStatus;
 import org.springframework.http.ResponseEntity;
@@ -22,7 +21,7 @@ public class AuthController {
 
     // 프론트로부터 인가 code를 받아와 카카오 서버로부터 토큰 얻기
     @GetMapping("")
-    public ResponseEntity<Object> kakaoLogin(@RequestParam("code") String code, HttpSession session) {
+    public ResponseEntity<Object> kakaoLogin(@RequestParam("code") String code) {
 
         System.out.println("code = " + code);
 
@@ -35,11 +34,6 @@ public ResponseEntity<Object> kakaoLogin(@RequestParam("code") String code, Http
         // 3. 로그인
         Users user = authService.login(kakaoUserInfo);
 
-        if (user.getKakaoId() != null) {
-            session.setAttribute("kakaoId", user.getKakaoId());
-            session.setAttribute("accessToken", accessToken);
-        }
-
         // 4. 유저 정보 리턴
         UserResponse userResponse = new UserResponse(
                 "SU",
@@ -54,14 +48,16 @@ public ResponseEntity<Object> kakaoLogin(@RequestParam("code") String code, Http
     }
 
     @PostMapping("/logout")
-    public ResponseEntity<Map<String,String>> logout(HttpSession session) {
+    public ResponseEntity<Map<String,String>> logout(@RequestHeader("Authorization") String header) {
+
+        System.out.println("header = " + header);
+
+        String[] authHeader = header.split(" ");
+        // 헤더에서 토큰 추출
+        String accessToken = authHeader[1];
 
-        String accessToken = (String)session.getAttribute("accessToken");
-        if (accessToken != null && !"".equals(accessToken)) {
-            authService.logout(accessToken);
-            session.removeAttribute("kakaoId");
-            session.removeAttribute("accessToken");
-        }
+        // 토큰을 사용해 로그아웃 처리
+        authService.logout(accessToken);
 
         // 로그아웃 성공 메시지 반환
         Map<String, String> response = new HashMap<>();

src/main/java/com/beotkkot/qtudy/controller/post/SummarizationController.java

@@ -0,0 +1,28 @@
+package com.beotkkot.qtudy.controller.post;
+
+import com.beotkkot.qtudy.dto.response.posts.GetSummaryResponseDto;
+import com.beotkkot.qtudy.service.posts.PostsService;
+import lombok.RequiredArgsConstructor;
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.http.ResponseEntity;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.PathVariable;
+import org.springframework.web.bind.annotation.RestController;
+
+@Slf4j
+@RestController
+@RequiredArgsConstructor
+public class SummarizationController {
+
+    private final PostsService postsService;
+
+    /**
+     * 사용자가 작성한 글에 대해 AI가 요약한 내용을 반환한다.
+     */
+    @GetMapping("summary/{postId}")
+    public ResponseEntity<? super GetSummaryResponseDto> summary(@PathVariable("postId") Long postId) {
+        // 포스트 아이디로부터 포스트 얻어오기
+        ResponseEntity<? super GetSummaryResponseDto> response = postsService.getSummary(postId);
+        return response;
+    }
+}

src/main/java/com/beotkkot/qtudy/dto/request/posts/PostsRequestDto.java

@@ -16,6 +16,7 @@ public class PostsRequestDto {
     private String content;
     private List<String> tag;
     private Long categoryId;
+    private String summary;
 
     public Posts toEntity(Long uid) {
         Date now = Date.from(Instant.now());
@@ -27,11 +28,13 @@ public Posts toEntity(Long uid) {
                 .userUid(uid)
                 .title(title)
                 .content(content)
+                .aiScript(summary)
                 .tag(tagString)
                 .createdAt(writeDatetime)
                 .commentCount(0)
                 .scrapCount(0)
                 .categoryId(categoryId)
                 .build();
     }
+
 }

src/main/java/com/beotkkot/qtudy/dto/response/posts/GetSummaryResponseDto.java

@@ -0,0 +1,34 @@
+package com.beotkkot.qtudy.dto.response.posts;
+
+import com.beotkkot.qtudy.common.ResponseCode;
+import com.beotkkot.qtudy.common.ResponseMessage;
+import com.beotkkot.qtudy.dto.response.ResponseDto;
+import lombok.Builder;
+import lombok.Getter;
+import org.springframework.http.HttpStatus;
+import org.springframework.http.ResponseEntity;
+
+@Getter
+public class GetSummaryResponseDto extends ResponseDto {
+    private Long postId;
+    private String summary;
+
+    @Builder
+    private GetSummaryResponseDto(Long postId, String summary) {
+        super(ResponseCode.SUCCESS, ResponseMessage.SUCCESS);
+
+        this.postId = postId;
+        this.summary = summary;
+    }
+
+    public static ResponseEntity<GetSummaryResponseDto> success(Long postId, String summary) {
+
+        GetSummaryResponseDto result = new GetSummaryResponseDto(postId, summary);
+        return ResponseEntity.status(HttpStatus.OK).body(result);
+    }
+
+    public static ResponseEntity<ResponseDto> noExistPost() {
+        ResponseDto result = new ResponseDto(ResponseCode.NOT_EXISTED_POST, ResponseMessage.NOT_EXISTED_POST);
+        return ResponseEntity.status(HttpStatus.BAD_REQUEST).body(result);
+    }
+}

src/main/java/com/beotkkot/qtudy/service/posts/PostsService.java

@@ -7,14 +7,11 @@
 import com.beotkkot.qtudy.dto.object.PostListItem;
 import com.beotkkot.qtudy.dto.request.posts.PostsRequestDto;
 import com.beotkkot.qtudy.dto.response.*;
+import com.beotkkot.qtudy.dto.response.posts.*;
 import com.beotkkot.qtudy.repository.posts.PostsRepository;
 import com.beotkkot.qtudy.repository.scrap.ScrapRepository;
 import com.beotkkot.qtudy.repository.tags.TagsRepository;
 import com.beotkkot.qtudy.repository.user.UserRepository;
-import com.beotkkot.qtudy.dto.response.posts.GetPostsAllResponseDto;
-import com.beotkkot.qtudy.dto.response.posts.GetPostsResponseDto;
-import com.beotkkot.qtudy.dto.response.posts.PostsResponseDto;
-import com.beotkkot.qtudy.dto.response.posts.PutScrapResponseDto;
 import lombok.RequiredArgsConstructor;
 import lombok.extern.slf4j.Slf4j;
 import org.springframework.http.ResponseEntity;
@@ -34,13 +31,15 @@ public class PostsService {
     private final UserRepository userRepo;
     private final TagsRepository tagRepo;
     private final ScrapRepository scrapRepo;
+    private final SummaryService summaryService;
 //    private final CommentsRepository commentsRepo; (댓글 기능 구현 시 주석 제거)
 
     @Transactional
     public ResponseEntity<? super PostsResponseDto> savePost(Long kakao_uid, PostsRequestDto dto) {
         try {
 
             if (userRepo.findByKakaoId(kakao_uid) != null) {
+
                 // 포스트 엔티티 생성
                 Posts post = dto.toEntity(kakao_uid);
 
@@ -71,8 +70,16 @@ public ResponseEntity<? super PostsResponseDto> savePost(Long kakao_uid, PostsRe
                 String tagString = String.join(",", savedTags);
                 post.setTag(tagString);
 
+                /**
+                 * postRepo에 해당 유저가 작성한 글에 대한 요약본 저장하는 부분 추가
+                 */
+                String summary = summaryService.summary(dto.getContent());
+                post.setContent(dto.getContent());
+                post.setAiScript(summary);
+
                 // 포스트 저장
                 postsRepo.save(post);
+
             } else {
                 return PostsResponseDto.notExistUser();
             }
@@ -102,6 +109,25 @@ public ResponseEntity<? super GetPostsResponseDto> getPost(Long postId) {
         return GetPostsResponseDto.success(post, user);
     }
 
+    @Transactional
+    public ResponseEntity<? super GetSummaryResponseDto> getSummary(Long postId) {
+        Posts post;
+        String summary;
+        try {
+            if (postsRepo.existsById(postId)) {
+                post = postsRepo.findByPostId(postId);
+                summary = post.getAiScript();
+            } else {
+                return GetSummaryResponseDto.noExistPost();
+            }
+        } catch (Exception exception) {
+            exception.printStackTrace();
+            return ResponseDto.databaseError();
+        }
+
+        return GetSummaryResponseDto.success(postId, summary);
+    }
+
     @Transactional
     public ResponseEntity<? super GetPostsAllResponseDto> getAllPost() {
         List<PostListItem> postListItems = new ArrayList<>();

src/main/java/com/beotkkot/qtudy/service/posts/SummaryService.java

@@ -0,0 +1,62 @@
+package com.beotkkot.qtudy.service.posts;
+
+import com.google.gson.JsonElement;
+import com.google.gson.JsonParser;
+import lombok.RequiredArgsConstructor;
+import org.springframework.http.HttpEntity;
+import org.springframework.http.HttpHeaders;
+import org.springframework.http.HttpMethod;
+import org.springframework.http.ResponseEntity;
+import org.springframework.stereotype.Service;
+import org.springframework.web.client.RestTemplate;
+
+import java.util.HashMap;
+import java.util.Map;
+
+@RequiredArgsConstructor
+@Service
+public class SummaryService {
+
+    // 텍스트 데이터 받아와서 요약
+    public String summary(String content) {
+
+        String requestURL = "https://naveropenapi.apigw.ntruss.com/text-summary/v1/summarize";
+
+        RestTemplate rt = new RestTemplate();
+
+        // HTTPHeader
+        HttpHeaders headers = new HttpHeaders();
+        headers.add("Content-Type", "application/json;UTF-8");
+        headers.add("X-NCP-APIGW-API-KEY-ID", "m099ib4o3p");
+        headers.add("X-NCP-APIGW-API-KEY", "lNTRtcRh3AIVZfCysWBmO73eoRHnEF0NVyJTYoSx");
+
+        // HTTPBody
+        Map<String, Object> document = new HashMap<>();
+        document.put("content", content);
+
+        Map<String, Object> option = new HashMap<>();
+        option.put("language", "ko");
+        option.put("model", "general");
+        option.put("tone", 2);
+
+        Map<String, Object> params = new HashMap<>();
+        params.put("document", document);
+        params.put("option", option);
+
+        System.out.println("params = " + params);
+
+        HttpEntity<Map<String, Object>> summaryTextRequest = new HttpEntity<>(params, headers);
+        ResponseEntity<String> response = rt.exchange(requestURL, HttpMethod.POST, summaryTextRequest, String.class);
+
+        String responseBody = response.getBody();
+
+        JsonParser parser = new JsonParser();
+        JsonElement element = parser.parse(responseBody);
+        String summaryText = element.getAsJsonObject().get("summary").getAsString();
+
+        System.out.println("원본 = " + content);
+        System.out.println("요약본 = " + summaryText);
+
+        return summaryText;
+    }
+}