Merge pull request #102 from D-VIDE/feature/review-like

리뷰 좋아요 api 구현

src/main/java/com/divide/review/Review.java

@@ -1,6 +1,7 @@
 package com.divide.review;
 
 import com.divide.post.domain.Post;
+import com.divide.post.domain.PostImage;
 import com.divide.user.User;
 import lombok.AccessLevel;
 import lombok.Builder;
@@ -50,6 +51,9 @@ public class Review {
     @NotNull
     private String content;
 
+    @OneToMany(mappedBy = "review", orphanRemoval = true, cascade = CascadeType.REMOVE)
+    private List<ReviewLike> reviewLikes = new ArrayList();
+
     @OneToMany(mappedBy = "review", orphanRemoval = true, cascade = CascadeType.ALL)
     @NotNull
     private List<ReviewImage> reviewImages = new ArrayList<>();

src/main/java/com/divide/review/ReviewController.java

@@ -2,6 +2,7 @@
 
 import com.divide.post.dto.response.Result;
 import com.divide.review.dto.request.PostReviewRequest;
+import com.divide.review.dto.response.DeleteReviewLikeResponse;
 import com.divide.review.dto.response.GetReviewsResponse;
 import com.divide.review.dto.response.PostReviewResponse;
 import lombok.RequiredArgsConstructor;
@@ -11,6 +12,8 @@
 import org.springframework.security.core.userdetails.UserDetails;
 import org.springframework.web.bind.annotation.*;
 import org.springframework.web.multipart.MultipartFile;
+import org.springframework.http.HttpStatus;
+import com.divide.review.dto.response.PostReviewLikeResponse;
 
 import java.util.List;
 
@@ -53,4 +56,32 @@ public Result getReviews(@RequestParam("longitude") double longitude, @RequestPa
                 .collect(toList());
         return new Result(collect);
     }
+
+    /**
+     * 리뷰 좋아요 생성
+     * [Post] http://localhost:8080/api/v1/review/3/like?userId=1
+     * @param reviewId : 유저가 누른 리뷰의 id
+     * @return
+     */
+    @PostMapping(value = "/review/{reviewId}/like")
+    public ResponseEntity<PostReviewLikeResponse> reviewLike( @AuthenticationPrincipal UserDetails userDetails, @PathVariable Long reviewId){
+
+        Long newReviewLikeId = reviewService.reviewLike(userDetails.getUsername(), reviewId);
+
+        return ResponseEntity.status(HttpStatus.CREATED).body( new PostReviewLikeResponse(newReviewLikeId));
+    }
+
+    /**
+     * 리뷰 좋아요 생성취소
+     * [Delete] http://localhost:8080/api/v1/review/{reviewId}/like
+     * @param userDetails : 현재 로그인 된 유저
+     * @param reviewId : 좋아요 취소를 누른 리뷰의 아이디
+     * @return
+     */
+    @DeleteMapping("/review/{reviewId}/like")
+    public ResponseEntity<DeleteReviewLikeResponse> reviewLikeCancel(@AuthenticationPrincipal UserDetails userDetails, @PathVariable Long reviewId){
+        reviewService.reviewLikeCancel(userDetails.getUsername(), reviewId);
+
+        return ResponseEntity.status(HttpStatus.OK).body(new DeleteReviewLikeResponse(reviewId));
+    }
 }

src/main/java/com/divide/review/ReviewLike.java

@@ -0,0 +1,38 @@
+package com.divide.review;
+
+import com.divide.user.User;
+import lombok.AccessLevel;
+import lombok.Builder;
+import lombok.Getter;
+import lombok.NoArgsConstructor;
+
+import javax.persistence.*;
+import javax.validation.constraints.NotNull;
+
+import static javax.persistence.FetchType.LAZY;
+
+@Getter
+@Entity
+@NoArgsConstructor(access = AccessLevel.PROTECTED)
+public class ReviewLike {
+    @Id
+    @GeneratedValue(strategy = GenerationType.IDENTITY)
+    private Long reviewLikeId;
+
+    @ManyToOne(fetch = LAZY)
+    @JoinColumn(name = "review_id")
+    @NotNull
+    private Review review;
+
+    @ManyToOne(fetch = LAZY)
+    @JoinColumn(name = "user_id")
+    @NotNull
+    private User user;
+
+    @Builder
+    public ReviewLike(Long reviewLikeId, Review review, User user) {
+        this.reviewLikeId = reviewLikeId;
+        this.review = review;
+        this.user = user;
+    }
+}

src/main/java/com/divide/review/ReviewLikeRepository.java

@@ -0,0 +1,25 @@
+package com.divide.review;
+
+import lombok.RequiredArgsConstructor;
+import org.springframework.stereotype.Repository;
+
+import javax.persistence.EntityManager;
+
+@Repository
+@RequiredArgsConstructor
+public class ReviewLikeRepository {
+    private final EntityManager em;
+
+    public void save(ReviewLike reviewLike) {
+        em.persist(reviewLike);}
+
+    public void delete(ReviewLike reviewLike){
+        em.remove(reviewLike);
+    }
+
+    public ReviewLike findById(Long reviewLikeId){
+        ReviewLike reviewLike = em.find(ReviewLike.class, reviewLikeId);
+        return reviewLike;
+    }
+
+}

src/main/java/com/divide/review/ReviewRepository.java

@@ -26,4 +26,9 @@ public List<Review> findReviewsAll(Integer first, String pointFormat) {
         return reviewLists;
     }
 
+    public Review findById(Long reviewId){
+        Review review = em.find(Review.class, reviewId);
+        return review;
+    }
+
 }

src/main/java/com/divide/review/ReviewService.java

@@ -26,6 +26,7 @@
 @RequiredArgsConstructor
 public class ReviewService {
     private final ReviewRepository reviewRepository;
+    private final ReviewLikeRepository reviewLikeRepository;
     private final UserRepository userRepository;
     private final PostRepository postRepository;
 
@@ -93,4 +94,34 @@ private String getPointFormat(Double longitude, Double latitude, Double distance
         return pointFormat;
     }
 
+    //리뷰 좋아요
+    @Transactional
+    public Long reviewLike(String userEmail, Long reviewId){
+        //엔티티 조회
+        User currentUser = userRepository.findByEmail(userEmail).orElseThrow(() -> new UsernameNotFoundException(""));
+        Review review = reviewRepository.findById(reviewId);
+
+        //리뷰 좋아요 생성
+        ReviewLike reviewLike = ReviewLike.builder()
+                .user(currentUser)
+                .review(review)
+                .build();
+
+        reviewLikeRepository.save(reviewLike);
+        return reviewLike.getReviewLikeId();
+    }
+
+    @Transactional
+    public void reviewLikeCancel(String userEmail, Long reviewId){
+        //게시글 좋아요 조회
+        Review review = reviewRepository.findById(reviewId);
+        List<ReviewLike> reviewLikes = review.getReviewLikes();
+//        reviewLikes.removeIf(reviewLike -> reviewLike.getUser().getEmail().equals(userEmail));
+
+        for(ReviewLike reviewLike: reviewLikes){
+            if ( reviewLike.getUser().getEmail().equals(userEmail) ){
+                reviewLikeRepository.delete(reviewLike);
+            }
+        }
+    }
 }

src/main/java/com/divide/review/dto/response/DeleteReviewLikeResponse.java

@@ -0,0 +1,12 @@
+package com.divide.review.dto.response;
+
+import lombok.AllArgsConstructor;
+import lombok.Getter;
+import lombok.Setter;
+
+@Getter
+@Setter
+@AllArgsConstructor
+public class DeleteReviewLikeResponse {
+    private Long ReviewId;
+}

src/main/java/com/divide/review/dto/response/PostReviewLikeResponse.java

@@ -0,0 +1,12 @@
+package com.divide.review.dto.response;
+import lombok.AllArgsConstructor;
+import lombok.Data;
+import lombok.Getter;
+import lombok.Setter;
+
+@Getter
+@Setter
+@AllArgsConstructor
+public class PostReviewLikeResponse {
+    private Long reviewLikeId;
+}