feat: 관심 문화 토글

관심 문화가 토글되는 기능을 추가했음
이미 있을 시 -> 삭제, 없을 시 -> 추가하는 로직으로 개발

src/main/java/likelion/MZConnent/api/culture/CultureController.java

@@ -12,10 +12,9 @@
 import lombok.extern.slf4j.Slf4j;
 import org.springframework.http.ResponseEntity;
 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.RequestParam;
-import org.springframework.web.bind.annotation.RestController;
+import org.springframework.web.bind.annotation.*;
+
+import java.util.Map;
 
 @RestController
 @Slf4j
@@ -58,4 +57,16 @@ public ResponseEntity<CultureDetailResponse> getCultureDetailInfo(@PathVariable(
 
         return ResponseEntity.ok(response);
     }
+
+    // 문화 관심 토글
+    @PostMapping("/api/cultures/{cultureId}/interests")
+    public ResponseEntity<Map<String, String>> addCultureInterest(@PathVariable("cultureId") Long cultureId, @AuthenticationPrincipal UserPrinciple userPrinciple) {
+        boolean status = cultureService.toggleCultureInterest(userPrinciple.getEmail(), cultureId);
+
+        if (status) {
+            return ResponseEntity.ok(Map.of("message", "관심 문화 추가 성공"));
+        } else {
+            return ResponseEntity.ok(Map.of("message", "관심 문화 삭제 성공"));
+        }
+    }
 }

src/main/java/likelion/MZConnent/repository/culture/CultureInterestRepository.java

@@ -1,9 +1,18 @@
 package likelion.MZConnent.repository.culture;
 
+import likelion.MZConnent.domain.culture.Culture;
 import likelion.MZConnent.domain.culture.CultureInterest;
+import likelion.MZConnent.domain.member.Member;
 import org.springframework.data.jpa.repository.JpaRepository;
+import org.springframework.data.jpa.repository.Query;
 import org.springframework.stereotype.Repository;
 
+import java.util.Optional;
+
 @Repository
 public interface CultureInterestRepository extends JpaRepository<CultureInterest, Long> {
-}
+
+    boolean existsByMemberAndCulture(Member member, Culture culture);
+
+    Optional<CultureInterest> findByMemberAndCulture(Member member, Culture culture);
+}

src/main/java/likelion/MZConnent/service/culture/CultureService.java

@@ -1,12 +1,16 @@
 package likelion.MZConnent.service.culture;
 
 import likelion.MZConnent.domain.culture.Culture;
+import likelion.MZConnent.domain.culture.CultureInterest;
+import likelion.MZConnent.domain.member.Member;
 import likelion.MZConnent.domain.review.Review;
 import likelion.MZConnent.dto.culture.response.CultureDetailResponse;
 import likelion.MZConnent.dto.culture.response.CulturesSimpleResponse;
 import likelion.MZConnent.dto.paging.response.PageContentResponse;
 import likelion.MZConnent.dto.review.response.ReviewsSimpleResponse;
+import likelion.MZConnent.repository.culture.CultureInterestRepository;
 import likelion.MZConnent.repository.culture.CultureRepository;
+import likelion.MZConnent.repository.member.MemberRepository;
 import likelion.MZConnent.repository.review.ReviewRepository;
 import lombok.RequiredArgsConstructor;
 import lombok.extern.slf4j.Slf4j;
@@ -26,6 +30,9 @@
 @RequiredArgsConstructor
 public class CultureService {
     private final CultureRepository cultureRepository;
+    private final CultureInterestRepository cultureInterestRepository;
+    private final MemberRepository memberRepository;
+
     private final int PAGE_SIZE = 6;
 
     public PageContentResponse<CulturesSimpleResponse> getCulturesSimpleList(Long cultureCategoryId, int page) {
@@ -65,11 +72,55 @@ public PageContentResponse<CulturesSimpleResponse> getMyIntersetCulturesSimpleLi
     }
 
     public CultureDetailResponse getCultureDetailInfo(Long cultureId) {
+        Culture culture = getCultureById(cultureId);
+        return CultureDetailResponse.builder()
+                .culture(culture).build();
+    }
+
+
+    // 문화 관심 토글
+    public boolean toggleCultureInterest(String email, Long cultureId) {
+
+        Member member = memberRepository.findByEmail(email).orElseThrow(() -> {
+            log.info("해당 회원이 존재하지 않음.");
+            return new IllegalArgumentException("해당 회원이 존재하지 않습니다.");
+        });
+        Culture culture = getCultureById(cultureId);
+
+        boolean exists = cultureInterestRepository.existsByMemberAndCulture(member, culture);
+
+
+        if (exists) { // 이미 문화를 관심 등록 해놓은 경우 (삭제)
+            CultureInterest cultureInterest = cultureInterestRepository.findByMemberAndCulture(member, culture)
+                    .get();
+            cultureInterestRepository.delete(cultureInterest);
+
+            member.getCultureInterests().remove(cultureInterest);
+            culture.getCultureInterests().remove(cultureInterest);
+            culture.setInterestCount(culture.getInterestCount() - 1);
+            return false;
+        }
+        else { // 문화를 관심 등록 해놓지 않은 경우 (추가)
+            CultureInterest cultureInterest = cultureInterestRepository.save(CultureInterest.builder()
+                    .member(member)
+                    .culture(culture)
+                    .build());
+
+            member.getCultureInterests().add(cultureInterest);
+            culture.getCultureInterests().add(cultureInterest);
+            culture.setInterestCount(culture.getInterestCount()+1);
+
+            return true;
+        }
+
+
+    }
+
+    private Culture getCultureById(Long cultureId) {
         Culture culture = cultureRepository.findById(cultureId).orElseThrow(() -> {
-            log.info("해당 문화가 존재하지 않습니다.");
+            log.info("해당 문화가 존재하지 않음.");
             return new IllegalArgumentException("해당 문화가 존재하지 않습니다.");
         });
-        return CultureDetailResponse.builder()
-                .culture(culture).build();
+        return culture;
     }
 }