Feat : 개별 개념 학습 조회 추가 (#25)

IT-Cotato · Jan 23, 2025 · e75ebac · e75ebac
1 parent 3c7d3b4
commit e75ebac
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diff --git a/src/main/java/com/ripple/BE/learning/controller/ConceptController.java b/src/main/java/com/ripple/BE/learning/controller/ConceptController.java
@@ -1,7 +1,9 @@
 package com.ripple.BE.learning.controller;
 
 import com.ripple.BE.global.dto.response.ApiResponse;
+import com.ripple.BE.learning.dto.ConceptDTO;
 import com.ripple.BE.learning.dto.ConceptListDTO;
+import com.ripple.BE.learning.dto.response.ConceptDetailResponse;
 import com.ripple.BE.learning.dto.response.ConceptListResponse;
 import com.ripple.BE.learning.service.concept.ConceptService;
 import com.ripple.BE.user.domain.CustomUserDetails;
@@ -59,4 +61,15 @@ public ResponseEntity<ApiResponse<?>> scrapConcept(
         conceptService.scrapConcept(currentUser.getId(), conceptId);
         return ResponseEntity.status(HttpStatus.OK).body(ApiResponse.EMPTY_RESPONSE);
     }
+
+    @Operation(summary = "개별 개념 학습 조회", description = "개별 개념 학습을 조회합니다.")
+    @GetMapping("/learning/{conceptId}")
+    public ResponseEntity<ApiResponse<Object>> getConcept(
+            final @PathVariable("conceptId") long conceptId) {
+
+        ConceptDTO concept = conceptService.getConcept(conceptId);
+
+        return ResponseEntity.status(HttpStatus.OK)
+                .body(ApiResponse.from(ConceptDetailResponse.toConceptDetailResponse(concept)));
+    }
 }
diff --git a/src/main/java/com/ripple/BE/learning/dto/response/ConceptDetailResponse.java b/src/main/java/com/ripple/BE/learning/dto/response/ConceptDetailResponse.java
@@ -0,0 +1,15 @@
+package com.ripple.BE.learning.dto.response;
+
+import com.ripple.BE.learning.dto.ConceptDTO;
+
+public record ConceptDetailResponse(
+        long id, String name, String explanation, String level, String learningSetName) {
+    public static ConceptDetailResponse toConceptDetailResponse(ConceptDTO conceptDTO) {
+        return new ConceptDetailResponse(
+                conceptDTO.conceptId(),
+                conceptDTO.name(),
+                conceptDTO.explanation(),
+                conceptDTO.level().name(),
+                conceptDTO.learningSetName());
+    }
+}
diff --git a/src/main/java/com/ripple/BE/learning/service/concept/ConceptService.java b/src/main/java/com/ripple/BE/learning/service/concept/ConceptService.java
@@ -4,6 +4,7 @@
 import com.ripple.BE.learning.domain.concept.ConceptScrap;
 import com.ripple.BE.learning.domain.learningset.LearningSet;
 import com.ripple.BE.learning.domain.learningset.UserLearningSet;
+import com.ripple.BE.learning.dto.ConceptDTO;
 import com.ripple.BE.learning.dto.ConceptListDTO;
 import com.ripple.BE.learning.exception.LearningException;
 import com.ripple.BE.learning.exception.errorcode.LearningErrorCode;
@@ -23,6 +24,7 @@
 @RequiredArgsConstructor
 @Service
 @Slf4j
+@Transactional(readOnly = true)
 public class ConceptService {
 
     private final LearningSetService learningSetService;
@@ -91,4 +93,19 @@ public void scrapConcept(final long userId, final long conceptId) {
 
         conceptScrapRepository.save(ConceptScrap.builder().user(user).concept(concept).build());
     }
+
+    /**
+     * 개별 개념 조회
+     *
+     * @param conceptId
+     * @return 개념 반환
+     */
+    public ConceptDTO getConcept(final long conceptId) {
+        Concept concept =
+                conceptRepository
+                        .findById(conceptId)
+                        .orElseThrow(() -> new LearningException(LearningErrorCode.CONCEPT_NOT_FOUND));
+
+        return ConceptDTO.toScrapConceptDTO(concept);
+    }
 }