Merge pull request #59 from jisung-in/feature/57-review-like-api

[Feature] 리뷰 좋아요 API 구현

src/main/java/com/jisungin/api/reviewlike/ReviewLikeController.java

@@ -0,0 +1,35 @@
+package com.jisungin.api.reviewlike;
+
+import com.jisungin.api.ApiResponse;
+import com.jisungin.api.oauth.Auth;
+import com.jisungin.api.oauth.AuthContext;
+import com.jisungin.application.reviewlike.ReviewLikeService;
+import lombok.RequiredArgsConstructor;
+import org.springframework.web.bind.annotation.*;
+
+@RequestMapping("/v1/reviews")
+@RequiredArgsConstructor
+@RestController
+public class ReviewLikeController {
+
+    private final ReviewLikeService reviewLikeService;
+
+    @PostMapping("/{reviewId}/likes")
+    public ApiResponse<Void> likeReview(
+            @PathVariable Long reviewId,
+            @Auth AuthContext authContext
+    ) {
+        reviewLikeService.likeReview(authContext.getUserId(), reviewId);
+        return ApiResponse.ok(null);
+    }
+
+    @DeleteMapping("/{reviewId}/likes")
+    public ApiResponse<Void> unlikeReview(
+            @PathVariable Long reviewId,
+            @Auth AuthContext authContext
+    ) {
+        reviewLikeService.unlikeReview(authContext.getUserId(), reviewId);
+        return ApiResponse.ok(null);
+    }
+
+}

src/main/java/com/jisungin/application/reviewlike/ReviewLikeService.java

@@ -0,0 +1,59 @@
+package com.jisungin.application.reviewlike;
+
+import com.jisungin.domain.review.Review;
+import com.jisungin.domain.review.repository.ReviewRepository;
+import com.jisungin.domain.reviewlike.ReviewLike;
+import com.jisungin.domain.reviewlike.repository.ReviewLikeRepository;
+import com.jisungin.domain.user.User;
+import com.jisungin.domain.user.repository.UserRepository;
+import com.jisungin.exception.BusinessException;
+import lombok.RequiredArgsConstructor;
+import org.springframework.stereotype.Service;
+import org.springframework.transaction.annotation.Transactional;
+
+import static com.jisungin.exception.ErrorCode.*;
+
+@Transactional(readOnly = true)
+@RequiredArgsConstructor
+@Service
+public class ReviewLikeService {
+
+    private final ReviewLikeRepository reviewLikeRepository;
+
+    private final UserRepository userRepository;
+
+    private final ReviewRepository reviewRepository;
+
+    @Transactional
+    public void likeReview(Long userId, Long reviewId) {
+        User user = userRepository.findById(userId)
+                .orElseThrow(() -> new BusinessException(USER_NOT_FOUND));
+
+        Review review = reviewRepository.findById(reviewId)
+                .orElseThrow(() -> new BusinessException(REVIEW_NOT_FOUND));
+
+        // 좋아요가 이미 존재할 경우, 400 에러
+        if (reviewLikeRepository.findByUserAndReview(user, review).isPresent()) {
+            throw new BusinessException(LIKE_EXIST);
+        }
+
+        // 없는 경우, 리뷰 좋아요 저장
+        ReviewLike reviewLike = ReviewLike.likeReview(user, review);
+        reviewLikeRepository.save(reviewLike);
+    }
+
+    @Transactional
+    public void unlikeReview(Long userId, Long reviewId) {
+        User user = userRepository.findById(userId)
+                .orElseThrow(() -> new BusinessException(USER_NOT_FOUND));
+
+        Review review = reviewRepository.findById(reviewId)
+                .orElseThrow(() -> new BusinessException(REVIEW_NOT_FOUND));
+
+        ReviewLike reviewLike = reviewLikeRepository.findByUserAndReview(user, review)
+                .orElseThrow(() -> new BusinessException(REVIEW_LIKE_NOT_FOUND));
+
+        reviewLikeRepository.delete(reviewLike);
+    }
+
+}

src/main/java/com/jisungin/domain/reviewlike/ReviewLike.java

@@ -0,0 +1,40 @@
+package com.jisungin.domain.reviewlike;
+
+import com.jisungin.domain.review.Review;
+import com.jisungin.domain.user.User;
+import jakarta.persistence.*;
+import lombok.*;
+
+@Getter
+@NoArgsConstructor(access = AccessLevel.PROTECTED)
+@Entity
+@ToString
+public class ReviewLike {
+
+    @Id
+    @GeneratedValue(strategy = GenerationType.IDENTITY)
+    @Column(name = "review_like_id")
+    private Long id;
+
+    @ManyToOne(fetch = FetchType.LAZY)
+    @JoinColumn(name = "user_id")
+    private User user;
+
+    @ManyToOne(fetch = FetchType.LAZY)
+    @JoinColumn(name = "review_id")
+    private Review review;
+
+    @Builder
+    private ReviewLike(User user, Review review) {
+        this.user = user;
+        this.review = review;
+    }
+
+    public static ReviewLike likeReview(User user, Review review) {
+        return ReviewLike.builder()
+                .user(user)
+                .review(review)
+                .build();
+    }
+
+}

src/main/java/com/jisungin/domain/reviewlike/repository/ReviewLikeRepository.java

@@ -0,0 +1,16 @@
+package com.jisungin.domain.reviewlike.repository;
+
+import com.jisungin.domain.review.Review;
+import com.jisungin.domain.reviewlike.ReviewLike;
+import com.jisungin.domain.user.User;
+import org.springframework.data.jpa.repository.JpaRepository;
+import org.springframework.stereotype.Repository;
+
+import java.util.Optional;
+
+@Repository
+public interface ReviewLikeRepository extends JpaRepository<ReviewLike, Long> {
+
+    Optional<ReviewLike> findByUserAndReview(User user, Review review);
+
+}

src/main/java/com/jisungin/exception/ErrorCode.java

@@ -21,7 +21,8 @@ public enum ErrorCode {
     TALK_ROOM_LIKE_NOT_FOUND(404, "토크방 좋아요를 찾을 수 없습니다."),
     LIKE_EXIST(400, "이미 좋아요를 눌렀습니다."),
     REQUEST_TIME_OUT(408, "요청 시간이 만료 되었습니다."),
-    COMMENT_LIKE_NOT_FOUND(404, "의견 좋아요를 찾을 수 없습니다.");
+    COMMENT_LIKE_NOT_FOUND(404, "의견 좋아요를 찾을 수 없습니다."),
+    REVIEW_LIKE_NOT_FOUND(404, "리뷰 좋아요를 찾을 수 없습니다.");
 
 
     private final int code;

src/test/java/com/jisungin/ControllerTestSupport.java

@@ -6,6 +6,7 @@
 import com.jisungin.api.commentlike.CommentLikeController;
 import com.jisungin.api.oauth.AuthContext;
 import com.jisungin.api.review.ReviewController;
+import com.jisungin.api.reviewlike.ReviewLikeController;
 import com.jisungin.api.talkroom.TalkRoomController;
 import com.jisungin.api.talkroomlike.TalkRoomLikeController;
 import com.jisungin.api.user.UserController;
@@ -14,6 +15,7 @@
 import com.jisungin.application.comment.CommentService;
 import com.jisungin.application.commentlike.CommentLikeService;
 import com.jisungin.application.review.ReviewService;
+import com.jisungin.application.reviewlike.ReviewLikeService;
 import com.jisungin.application.talkroom.TalkRoomService;
 import com.jisungin.application.talkroomlike.TalkRoomLikeService;
 import com.jisungin.application.user.UserService;
@@ -29,7 +31,8 @@
         TalkRoomLikeController.class,
         CommentLikeController.class,
         UserController.class,
-        BookController.class
+        BookController.class,
+        ReviewLikeController.class
 })
 public abstract class ControllerTestSupport {
 
@@ -66,4 +69,7 @@ public abstract class ControllerTestSupport {
     @MockBean
     protected BestSellerService bestSellerService;
 
+    @MockBean
+    protected ReviewLikeService reviewLikeService;
+
 }

src/test/java/com/jisungin/api/reviewlike/ReviewLikeControllerTest.java

@@ -0,0 +1,44 @@
+package com.jisungin.api.reviewlike;
+
+import com.jisungin.ControllerTestSupport;
+import org.junit.jupiter.api.DisplayName;
+import org.junit.jupiter.api.Test;
+
+import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.*;
+import static org.springframework.test.web.servlet.result.MockMvcResultHandlers.*;
+import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.jsonPath;
+import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.status;
+
+class ReviewLikeControllerTest extends ControllerTestSupport {
+
+    @DisplayName("유저가 리뷰 좋아요를 누른다.")
+    @Test
+    void likeReview() throws Exception {
+        //given
+        Long reviewId = 1L;
+
+        //when //then
+        mockMvc.perform(post("/v1/reviews/{reviewId}/likes", reviewId))
+                .andExpect(status().isOk())
+                .andExpect(jsonPath("$.code").value("200"))
+                .andExpect(jsonPath("$.status").value("OK"))
+                .andExpect(jsonPath("$.message").value("OK"))
+                .andDo(print());
+    }
+
+    @DisplayName("유저가 리뷰 좋아요를 취소한다.")
+    @Test
+    void unlikeReview() throws Exception {
+        //given
+        Long reviewId = 1L;
+
+        //when //then
+        mockMvc.perform(delete("/v1/reviews/{reviewId}/likes", reviewId))
+                .andExpect(status().isOk())
+                .andExpect(jsonPath("$.code").value("200"))
+                .andExpect(jsonPath("$.status").value("OK"))
+                .andExpect(jsonPath("$.message").value("OK"))
+                .andDo(print());
+    }
+
+}