feat: travel 스크랩 API

src/main/java/com/projectX/projectX/domain/tour/entity/Tour.java

@@ -1,8 +1,10 @@
 package com.projectX.projectX.domain.tour.entity;
 
+import com.projectX.projectX.domain.member.entity.Member;
 import com.projectX.projectX.global.common.BaseEntity;
 import com.projectX.projectX.global.common.ContentType;
 import com.projectX.projectX.global.common.JejuRegion;
+import jakarta.persistence.CascadeType;
 import jakarta.persistence.Column;
 import jakarta.persistence.Entity;
 import jakarta.persistence.EnumType;
@@ -13,6 +15,7 @@
 import jakarta.persistence.OneToMany;
 import java.util.ArrayList;
 import java.util.List;
+import java.util.Objects;
 import lombok.AccessLevel;
 import lombok.Builder;
 import lombok.Getter;
@@ -86,6 +89,10 @@ public class Tour extends BaseEntity {
     @Comment("카카오맵 URL")
     private String kakaoMapUrl;
 
+    @Comment("user 스크랩 정보")
+    @OneToMany(mappedBy = "tour", cascade = CascadeType.ALL, orphanRemoval = true)
+    private List<UserScrapTour> scraps;
+
     @Builder
     public Tour(Long id, String address, String spec_address, Long zipCode, Long contentId,
         ContentType contentType, JejuRegion jejuRegion, String imageUrl, float mapX, float mapY,
@@ -119,4 +126,23 @@ public void updatePhone(String phone) {
     public void updateKakaoMapUrl(String kakaoMapUrl){
         this.kakaoMapUrl = kakaoMapUrl;
     }
+
+    public Boolean updateScrap(Tour tour, Member member) {
+        UserScrapTour forRemove = null;
+        for (UserScrapTour scrap : this.scraps) {
+            if (Objects.equals(scrap.getTour(), tour) && Objects.equals(scrap.getMember(),
+                member)) {
+                forRemove = scrap;
+                break;
+            }
+        }
+
+        if (Objects.nonNull(forRemove)) {
+            this.scraps.remove(forRemove);
+            return false;
+        }
+
+        this.scraps.add(new UserScrapTour(tour, member));
+        return true;
+    }
 }

src/main/java/com/projectX/projectX/domain/tour/entity/UserScrapTour.java

@@ -0,0 +1,38 @@
+package com.projectX.projectX.domain.tour.entity;
+
+import com.projectX.projectX.domain.member.entity.Member;
+import jakarta.persistence.Entity;
+import jakarta.persistence.FetchType;
+import jakarta.persistence.GeneratedValue;
+import jakarta.persistence.GenerationType;
+import jakarta.persistence.Id;
+import jakarta.persistence.JoinColumn;
+import jakarta.persistence.ManyToOne;
+import lombok.AccessLevel;
+import lombok.Builder;
+import lombok.Getter;
+import lombok.NoArgsConstructor;
+
+@Entity
+@Getter
+@NoArgsConstructor(access = AccessLevel.PROTECTED)
+public class UserScrapTour {
+
+    @Id
+    @GeneratedValue(strategy = GenerationType.IDENTITY)
+    private Long id;
+
+    @ManyToOne(fetch = FetchType.EAGER)
+    @JoinColumn(name = "tour_id")
+    private Tour tour;
+
+    @ManyToOne(fetch = FetchType.EAGER)
+    @JoinColumn(name = "member_id")
+    private Member member;
+
+    @Builder
+    public UserScrapTour(Tour tour, Member member) {
+        this.tour = tour;
+        this.member = member;
+    }
+}

src/main/java/com/projectX/projectX/domain/travel/controller/TravelRestController.java

@@ -5,15 +5,18 @@
 import com.projectX.projectX.domain.travel.service.TravelService;
 import com.projectX.projectX.global.common.JejuRegion;
 import com.projectX.projectX.global.common.ResponseDTO;
+import com.projectX.projectX.global.security.dto.CustomOAuth2User;
 import io.swagger.v3.oas.annotations.Operation;
 import io.swagger.v3.oas.annotations.tags.Tag;
 import jakarta.validation.constraints.NotBlank;
 import jakarta.validation.constraints.NotNull;
 import java.util.List;
 import lombok.RequiredArgsConstructor;
 import org.springframework.http.HttpStatus;
+import org.springframework.security.core.annotation.AuthenticationPrincipal;
 import org.springframework.web.bind.annotation.GetMapping;
 import org.springframework.web.bind.annotation.PathVariable;
+import org.springframework.web.bind.annotation.PostMapping;
 import org.springframework.web.bind.annotation.RequestMapping;
 import org.springframework.web.bind.annotation.RequestParam;
 import org.springframework.web.bind.annotation.ResponseStatus;
@@ -59,4 +62,15 @@ public ResponseDTO<?> getRecommdTravelInfo(
         return ResponseDTO.res(travelService.getTravelRecommd(jejuRegion), "travel 추천 조회에 성공했습니다.");
     }
 
+    @PostMapping("/{travel_id}/scrap")
+    @ResponseStatus(HttpStatus.CREATED)
+    @Operation(summary = "travel 스크랩 API", description = "travel 게시물을 스크랩하는 API입니다.")
+    public ResponseDTO<?> postTravelScrapInfo(
+        @PathVariable("travel_id") @NotNull Long travelId,
+        @AuthenticationPrincipal CustomOAuth2User user
+    ) {
+        String result = travelService.postTravelScrapInfo(travelId, user.getEmail());
+        return ResponseDTO.res(result);
+    }
+
 }

src/main/java/com/projectX/projectX/domain/travel/service/TravelService.java

@@ -1,5 +1,8 @@
 package com.projectX.projectX.domain.travel.service;
 
+import com.projectX.projectX.domain.member.entity.Member;
+import com.projectX.projectX.domain.member.exception.InvalidMemberException;
+import com.projectX.projectX.domain.member.repository.MemberRepository;
 import com.projectX.projectX.domain.tour.entity.Tour;
 import com.projectX.projectX.domain.tour.entity.TourImage;
 import com.projectX.projectX.domain.tour.repository.TourRepository;
@@ -33,6 +36,7 @@
 public class TravelService {
 
     private final TourRepository tourRepository;
+    private final MemberRepository memberRepository;
     private static final int RECOMMEND_WORK_SIZE = 3;
 
     @Transactional(readOnly = true)
@@ -82,6 +86,14 @@ private Tour getTour(long tourId) {
             .orElseThrow(() -> new TravelNotFoundException(ErrorCode.TRAVEL_NOT_FOUND));
     }
 
+    private Member getMember(String userEmail) {
+        Member member = memberRepository.findByUserEmail(userEmail).orElseThrow(
+            () -> new InvalidMemberException(ErrorCode.INVALID_MEMBER_EXCEPTION)
+        );
+
+        return member;
+    }
+
     private List<String> getTravelImageUrlList(List<TourImage> tourImageList) {
         if (tourImageList.isEmpty()) {
             return null;
@@ -113,5 +125,13 @@ public List<TravelGetRecommdResponse> getTravelRecommd(JejuRegion jejuRegion) {
         return TravelMapper.toTravelGetRecommendResponse(tours);
     }
 
+    @Transactional
+    public String postTravelScrapInfo(Long travelId, String userEmail) {
+        Tour tour = getTour(travelId);
+        Member member = getMember(userEmail);
+
+        Boolean result = tour.updateScrap(tour, member);
+        return result ? "travel 정보를 스크랩했습니다." : "travel 스크랩을 취소했습니다.";
+    }
 
 }