✨ Feat: 전체 강의 정보 조회 구현

src/main/java/miniproject/web02/apiPayLoad/code/status/SuccessStatus.java

@@ -16,6 +16,7 @@ public enum SuccessStatus implements BaseCode {
     // 강의 관련 응답
     SUCCESS_FETCH_LECTURE(HttpStatus.OK, "LECTURE2001", "강의 정보를 성공적으로 가져왔습니다."),
     SUCCESS_CREATE_LECTURE(HttpStatus.OK, "LECTURE2002", "강의 정보를 성공적으로 등록했습니다."),
+    SUCCESS_FETCH_LECTURES(HttpStatus.OK, "LETURE2003", "전체 강의 정보를 성공적으로 가져왔습니다."),
 
     // 리뷰 관련 응답
     SUCCESS_FETCH_REVIEW_LIST(HttpStatus.OK, "REVIEW2001", "리뷰 목록을 성공적으로 가져왔습니다."),

src/main/java/miniproject/web02/service/lectureSerivce/LectureService.java

@@ -4,10 +4,13 @@
 import miniproject.web02.web.dto.lectureDTO.LectureResponseDTO;
 import org.springframework.web.multipart.MultipartFile;
 
+import java.util.List;
+
 public interface LectureService {
     LectureResponseDTO.LectureDTO getLecture(Long lectureId);
 
     //LectureResponseDTO createLecture(LectureRequestDTO lectureRequestDto, MultipartFile image);
     //LectureResponseDTO.LectureDTO createLecture(LectureRequestDTO lectureRequestDto);
     LectureResponseDTO.LectureDTO createLecture(LectureRequestDTO lectureRequestDTO, MultipartFile image);
+    List<LectureResponseDTO.LectureDTO> getAllLectures();
 }

src/main/java/miniproject/web02/service/lectureSerivce/LectureServiceImpl.java

@@ -14,6 +14,9 @@
 import org.springframework.transaction.annotation.Transactional;
 import org.springframework.web.multipart.MultipartFile;
 
+import java.util.List;
+import java.util.stream.Collectors;
+
 @Service
 @RequiredArgsConstructor
 public class LectureServiceImpl implements LectureService {
@@ -83,4 +86,25 @@ public LectureResponseDTO.LectureDTO createLecture(LectureRequestDTO lectureRequ
                 .imageUrl(imageUrl)  // 이미지 URL 반환
                 .build();
     }
+
+    @Override
+    public List<LectureResponseDTO.LectureDTO> getAllLectures() {
+        List<Lecture> lectures = lectureRepository.findAll(); // Fetch all lectures
+
+        return lectures.stream()
+                .map(lecture -> {
+                    String imageUrl = lectureImageRepository.findFirstByLecture(lecture)
+                            .map(LectureImage::getImageUrl)
+                            .orElse(null);
+
+                    return LectureResponseDTO.LectureDTO.builder()
+                            .lectureId(lecture.getLectureID())
+                            .lectureName(lecture.getName())
+                            .platform(lecture.getPlatform().toString())
+                            .teacher(lecture.getTeacher())
+                            .imageUrl(imageUrl)
+                            .build();
+                })
+                .collect(Collectors.toList());
+    }
 }

src/main/java/miniproject/web02/web/controller/ApiController.java

@@ -46,16 +46,6 @@ public class ApiController {
     private final RatingCommandService ratingCommandService;
     private final ReviewSearchCommandService reviewSearchCommandService;
 
-    @Operation(summary = "강의 등록 API", description = "새로운 강의 정보를 등록합니다.")
-    @PostMapping(value = "/lectures", consumes = MediaType.MULTIPART_FORM_DATA_VALUE)
-    public ApiResponse<LectureResponseDTO.LectureDTO> createLecture(
-            @RequestPart("lectureRequest") @Validated LectureRequestDTO lectureRequestDTO,
-            @RequestPart(value = "image", required = false) MultipartFile image) {
-
-        // 강의 생성
-        LectureResponseDTO.LectureDTO createdLecture = lectureService.createLecture(lectureRequestDTO, image);
-        return ApiResponse.of(SuccessStatus.SUCCESS_CREATE_LECTURE, createdLecture);
-    }
 
     @Operation(summary = "총 별점 & 별점 개수 조회 API", description = "해당하는 강의의 총 별점 & 점수 대 별 별점 개수를 조회하는 API")
     @GetMapping("/rating_info/{lectureId}")
@@ -70,7 +60,7 @@ public ApiResponse<totalRatingResponseDTO.getRatingInfoDTO> RatingInfo (@PathVar
         return ApiResponse.onSuccess(TotalRatingConverter.toTotalRatigDTO(lecture,ratingCounts,lectureReviewRatingList));
     }
 
-    @Operation(summary = "강의 정보 조회 API", description = "강의 상세 페이지의 강의 정보 조회")
+    @Operation(summary = "특정 강의 정보 조회 API", description = "강의 상세 페이지의 강의 정보 조회")
     @GetMapping("/lecture_info/{lectureId}")
     public ApiResponse<LectureResponseDTO.LectureDTO> getLectureInfo (@PathVariable(name = "lectureId") Long lectureId){
         LectureResponseDTO.LectureDTO lectureDTO = lectureService.getLecture(lectureId);

src/main/java/miniproject/web02/web/controller/LectureController.java

@@ -0,0 +1,43 @@
+package miniproject.web02.web.controller;
+
+import io.swagger.v3.oas.annotations.Operation;
+import lombok.RequiredArgsConstructor;
+import miniproject.web02.apiPayLoad.ApiResponse;
+import miniproject.web02.apiPayLoad.code.status.SuccessStatus;
+import miniproject.web02.repository.LectureRepository;
+import miniproject.web02.service.lectureSerivce.LectureService;
+import miniproject.web02.web.dto.lectureDTO.LectureRequestDTO;
+import miniproject.web02.web.dto.lectureDTO.LectureResponseDTO;
+import org.springframework.http.MediaType;
+import org.springframework.validation.annotation.Validated;
+import org.springframework.web.bind.annotation.*;
+import org.springframework.web.multipart.MultipartFile;
+
+import java.util.List;
+
+@RestController
+@RequiredArgsConstructor
+@Validated
+@RequestMapping("/api")
+public class LectureController {
+    private final LectureRepository lectureRepository;
+    private final LectureService lectureService;
+
+    @Operation(summary = "강의 등록 API", description = "새로운 강의 정보를 등록합니다.")
+    @PostMapping(value = "/lectures", consumes = MediaType.MULTIPART_FORM_DATA_VALUE)
+    public ApiResponse<LectureResponseDTO.LectureDTO> createLecture(
+            @RequestPart("lectureRequest") @Validated LectureRequestDTO lectureRequestDTO,
+            @RequestPart(value = "image", required = false) MultipartFile image) {
+
+        // 강의 생성
+        LectureResponseDTO.LectureDTO createdLecture = lectureService.createLecture(lectureRequestDTO, image);
+        return ApiResponse.of(SuccessStatus.SUCCESS_CREATE_LECTURE, createdLecture);
+    }
+
+    @Operation(summary = "전체 강의 조회 API", description = "전체 강의 정보 조회")
+    @GetMapping("/lectures")
+    public ApiResponse<List<LectureResponseDTO.LectureDTO>> getLectureInfo() {
+        List<LectureResponseDTO.LectureDTO> lectures = lectureService.getAllLectures();
+        return ApiResponse.of(SuccessStatus.SUCCESS_FETCH_LECTURES, lectures);
+    }
+}