[merge] 광고 상세 조회 API - #71

[FEAT] 광고 상세 조회 API - #71

dateroad-api/src/main/java/org/dateroad/advertisment/api/AdvertismentController.java

@@ -2,10 +2,13 @@
 
 import lombok.RequiredArgsConstructor;
 import org.dateroad.advertisment.dto.response.AdvGetAllRes;
+import org.dateroad.advertisment.dto.response.AdvGetDetailRes;
 import org.dateroad.advertisment.service.AdvertismentService;
 import org.springframework.http.HttpStatus;
 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.RequestHeader;
 import org.springframework.web.bind.annotation.RequestMapping;
 import org.springframework.web.bind.annotation.RestController;
 
@@ -17,8 +20,13 @@ public class AdvertismentController {
 
     @GetMapping
     public ResponseEntity<AdvGetAllRes> getAllAdvertisments(){
-        return ResponseEntity
-                .status(HttpStatus.OK)
-                .body(advertismentService.getAllAdvertisments());
+        return ResponseEntity.ok(advertismentService.getAllAdvertisments());
+    }
+
+    @GetMapping("{advId}")
+    public ResponseEntity<AdvGetDetailRes> getAllAdvertisments(
+            final @PathVariable Long advId
+    ){
+        return ResponseEntity.ok(advertismentService.getAdvertismentsDetail(advId));
     }
 }

dateroad-api/src/main/java/org/dateroad/advertisment/dto/response/AdvGetDetailRes.java

@@ -0,0 +1,39 @@
+package org.dateroad.advertisment.dto.response;
+
+import com.fasterxml.jackson.annotation.JsonFormat;
+import java.time.LocalDate;
+import java.time.LocalDateTime;
+import java.util.List;
+import lombok.AccessLevel;
+import lombok.Builder;
+
+@Builder(access = AccessLevel.PROTECTED)
+public record AdvGetDetailRes(
+        List<AdvImagesRes> images,
+        String title,
+        @JsonFormat(shape = JsonFormat.Shape.STRING, pattern = "yyyy.MM.dd", timezone = "Asia/Seoul")
+        LocalDate createAt,
+        String description
+) {
+    public static AdvGetDetailRes of(List<AdvImagesRes> images, String title, LocalDate createAt, String description) {
+        return AdvGetDetailRes.builder()
+                .images(images)
+                .title(title)
+                .createAt(createAt)
+                .description(description)
+                .build();
+    }
+
+    @Builder(access = AccessLevel.PROTECTED)
+    public record AdvImagesRes(
+            String imagesUrl,
+            int sequence
+    ) {
+        public static AdvImagesRes of(String imagesUrl, int sequence) {
+            return AdvImagesRes.builder()
+                    .imagesUrl(imagesUrl)
+                    .sequence(sequence)
+                    .build();
+        }
+    }
+}

dateroad-api/src/main/java/org/dateroad/advertisment/service/AdvertismentService.java

@@ -1,23 +1,57 @@
 package org.dateroad.advertisment.service;
 
+import java.util.List;
+import java.util.Optional;
 import java.util.stream.Collectors;
 import lombok.RequiredArgsConstructor;
+import org.dateroad.adImage.domain.AdImage;
+import org.dateroad.adImage.repository.AdImageRepository;
+import org.dateroad.advertisement.domain.Advertisment;
 import org.dateroad.advertisement.repository.AdvertismentRepository;
 import org.dateroad.advertisment.dto.response.AdvGetAllRes;
 import org.dateroad.advertisment.dto.response.AdvGetAllRes.AdvertismentDtoRes;
+import org.dateroad.advertisment.dto.response.AdvGetDetailRes;
+import org.dateroad.advertisment.dto.response.AdvGetDetailRes.AdvImagesRes;
+import org.dateroad.code.FailureCode;
+import org.dateroad.exception.EntityNotFoundException;
 import org.springframework.data.domain.PageRequest;
 import org.springframework.data.domain.Pageable;
 import org.springframework.stereotype.Service;
+import org.springframework.transaction.annotation.Transactional;
 
 @Service
 @RequiredArgsConstructor
+@Transactional(readOnly = true)
 public class AdvertismentService {
     private final AdvertismentRepository advertismentRepository;
+    private final AdImageRepository adImageRepository;
+
+    private static List<AdvImagesRes> getImages(final List<AdImage> adImages) {
+        return adImages.stream().map(
+                adImage -> AdvImagesRes.of(adImage.getImageUrl(), adImage.getSequence())
+        ).toList();
+    }
+
     public AdvGetAllRes getAllAdvertisments() {
         Pageable topFive = PageRequest.of(0, 5);
         return AdvGetAllRes.of(advertismentRepository.findTop5ByOrderByCreatedDateDesc(topFive).
                 stream()
                 .map(AdvertismentDtoRes::of)
                 .collect(Collectors.toList()));
     }
+
+    public AdvGetDetailRes getAdvertismentsDetail(final Long advId) {
+        Advertisment advertisment = getAdvertisment(advId);
+        List<AdImage> adImages = adImageRepository.findAllById(advId);
+        return AdvGetDetailRes.of(
+                getImages(adImages), advertisment.getTitle(), advertisment.getCreatedAt().toLocalDate(),
+                advertisment.getTitle()
+        );
+    }
+
+    private Advertisment getAdvertisment(final Long advId) {
+        return advertismentRepository.findById(advId).orElseThrow(
+                () -> new EntityNotFoundException(FailureCode.ADVERTISMENT_NOT_FOUND)
+        );
+    }
 }

dateroad-common/src/main/java/org/dateroad/code/FailureCode.java

@@ -62,6 +62,7 @@ public enum FailureCode {
     COURSE_TAG_NOT_FOUND(HttpStatus.NOT_FOUND, "e40410", "데이트 태그를 찾을 수 없습니다."),
     NEAREST_DATE_NOT_FOUND(HttpStatus.NOT_FOUND, "e40411", "다가오는 데이트를 찾을 수 없습니다."),
     LIKE_NOT_FOUND(HttpStatus.NOT_FOUND, "e40412", "해당 데이트 코스에 좋아요를 찾을 수 없습니다."),
+    ADVERTISMENT_NOT_FOUND(HttpStatus.NOT_FOUND, "e40413", "해당 광고를 찾을 수 없습니다."),
 
     INSUFFICIENT_USER_POINTS(HttpStatus.NOT_FOUND, "e4048", "유저의 포인트가 부족합니다."),
     /**
@@ -78,6 +79,7 @@ public enum FailureCode {
     DUPLICATE_COURSE_LIKE(HttpStatus.CONFLICT, "e4093", "해당 데이트 코스에 좋아요가 이미 존재합니다."),
 
     INTERNAL_SERVER_ERROR(HttpStatus.INTERNAL_SERVER_ERROR, "e5000", "서버 내부 오류입니다.");
+
     /**
      * 500 Internal Server Error
      */

dateroad-domain/src/main/java/org/dateroad/adImage/repository/AdImageRepository.java

@@ -8,4 +8,5 @@
 
 @Repository
 public interface AdImageRepository extends JpaRepository<AdImage, Long> {
+    List<AdImage> findAllById(Long advertismentId);
 }