feat(#125) : product detail api 로직 틀 구현 (테스트 전)

src/main/java/trothly/trothcam/controller/web/ProductController.java

@@ -1,13 +1,15 @@
 package trothly.trothcam.controller.web;
 
 import lombok.RequiredArgsConstructor;
-import org.springframework.web.bind.annotation.GetMapping;
-import org.springframework.web.bind.annotation.RequestMapping;
-import org.springframework.web.bind.annotation.RequestParam;
-import org.springframework.web.bind.annotation.RestController;
+import org.springframework.security.core.annotation.AuthenticationPrincipal;
+import org.springframework.web.bind.annotation.*;
+import trothly.trothcam.domain.member.Member;
 import trothly.trothcam.domain.product.Product;
+import trothly.trothcam.dto.web.ProductDetailResDto;
+import trothly.trothcam.dto.web.ProductReqDto;
 import trothly.trothcam.dto.web.ProductsResDto;
 import trothly.trothcam.exception.base.BaseResponse;
+import trothly.trothcam.exception.custom.BadRequestException;
 import trothly.trothcam.service.web.ProductService;
 
 import java.util.List;
@@ -34,4 +36,14 @@ public class ProductController {
 //        return new BaseResponse<ProductsResDto>(collect);
 //    }
 
+    /* 상품 detail 화면 조회 */  // 구현은 했으나 테스트 아직 못해봄
+//    @GetMapping("/product-detail")
+//    public BaseResponse<ProductDetailResDto> findProductDetail(@RequestBody ProductReqDto req, @AuthenticationPrincipal Member member) {
+//        if(req.getProductId() == null) {
+//            throw new BadRequestException("존재하지 않는 상품 아이디 입니다.");
+//        }
+//
+//        ProductDetailResDto res = productService.findProductDetail(req, member);
+//        return BaseResponse.onSuccess(res);
+//    }
 }

src/main/java/trothly/trothcam/domain/product/Product.java

@@ -59,4 +59,8 @@ public class Product extends BaseTimeEntity {
 
     @Column(name = "created_at", nullable = false)
     private LocalDateTime createdAt;
+
+    public void updateViews(int views) {
+        this.views = views;
+    }
 }

src/main/java/trothly/trothcam/service/web/ProductService.java

@@ -32,6 +32,8 @@
 public class ProductService {
 
     private final ProductRepository productRepository;
+    private final HistoryRepository historyRepository;
+    private final LikeProductRepository likeProductRepository;
 
 //
 //    /* 공개 인증서 조회 */
@@ -44,4 +46,33 @@ public class ProductService {
 //        return findProducts;
 //    }
 
+    /* 상품 detail 화면 조회 */
+    @Transactional(readOnly = true)
+    public ProductDetailResDto findProductDetail(ProductReqDto req, Member member) {
+        Boolean liked = false;
+
+        Product product = productRepository.findById(req.getProductId()).orElseThrow(
+                () -> new BadRequestException("존재하지 않는 상품입니다.")
+        );
+
+        // 조회수 갱신
+        product.updateViews(product.getViews() + 1);
+
+        Long likes = likeProductRepository.countByProductId(req.getProductId());
+
+        //좋아요 여부
+        Optional<LikeProduct> isLiked = likeProductRepository.findByProductIdAndMemberId(req.getProductId(), member.getId());
+
+        if(isLiked.isPresent()) {
+            liked = true;
+        } else {
+            liked = false;
+        }
+
+        List<History> histories = historyRepository.findAllByProductId(req.getProductId());
+
+        return new ProductDetailResDto(req.getProductId(), product.getImage().getId(), product.getMember().getId(), product.getTitle(),
+                product.getTags(), product.getPrice(), product.getDescription(),product.getViews(), likes, product.getPublicYn(), product.getCreatedAt(),
+                product.getLastModifiedAt(), liked, histories);
+    }
 }