feat: 검색api 1차 구현

src/main/java/org/kau/kkoolbeeServer/domain/diary/controller/DiaryController.java

@@ -320,6 +320,56 @@ public ResponseEntity<?> diaryShare(@RequestParam("diaryId") Long diaryId){
 
     }
 
+    @GetMapping("/api/diary/search")
+
+    public ResponseEntity<?>diarySearch(@RequestHeader(value = "Authorization") String authHeader,@RequestBody SearchRequestDto requestDto){
+
+        try{
+            Long memberId=extractMemberIdFromRequestHeader(authHeader);
+            String searchKeyword= requestDto.getSearchKeyword();
+            List<Diary> diaries = diaryService.searchDiaries(memberId, searchKeyword);
+
+            if (diaries.isEmpty()) {
+                return ResponseEntity.status(ErrorType.REQUEST_VALIDATION_ERROR.getHttpStatus())
+                        .body(ApiResponse.error(ErrorType.REQUEST_VALIDATION_ERROR, "해당 검색어에 대한 일기가 존재하지 않습니다."));
+            }
+            List<DiarySearchResponseDto> diaryList = diaries.stream()
+                    .map(diary -> {
+                        String excerptContent = getFirstExcerpt(diary.getContent(), searchKeyword);
+
+
+
+
+                        return new DiarySearchResponseDto(diary.getId(),  diary.getWritedAt(),diary.getTitle(), diary.getImageurl(),excerptContent , searchKeyword);
+                    })
+                    .collect(Collectors.toList());
+
+            Map<String,List<DiarySearchResponseDto>> responseMap=Map.of("diaryList", diaryList);
+
+
+
+            return ResponseEntity.ok().body(ApiResponse.success(SuccessType.PROCESS_SUCCESSED,responseMap));
+
+
+
+        }  catch (IllegalArgumentException e) {
+            e.printStackTrace();
+            return ResponseEntity.status(HttpStatus.BAD_REQUEST).body(ApiResponse.error(ErrorType.INVALID_HTTP_REQUEST_ERROR));
+        }
+        catch(Exception e){
+            e.printStackTrace();
+            return ResponseEntity.status(HttpStatus.INTERNAL_SERVER_ERROR).body(ApiResponse.error(ErrorType.INTERNAL_SERVER_ERROR));
+
+
+
+
+        }
+
+
+    }
+
+
+
     public Long extractMemberIdFromRequestHeader(String authHeader) {
         if (authHeader != null && authHeader.startsWith("Bearer ")) {
             String accessToken = authHeader.substring(7);
@@ -330,6 +380,21 @@ public Long extractMemberIdFromRequestHeader(String authHeader) {
     }
 
 
+    private String getFirstExcerpt(String content, String keyword) {
+        // content에 keyword가 없을 경우 null 반환
+        if (!content.contains(keyword)) {
+            return null; // 키워드가 없으면 null 반환
+        }
+
+        int index = content.indexOf(keyword);
+        int start = Math.max(0, index - 3); // 앞쪽 3자
+        int end = Math.min(content.length(), index + keyword.length() + 3); // 키워드 끝까지 + 3자
+
+        return content.substring(start, end); // 정해진 범위의 내용 반환
+    }
+
+
+
 
 
 }

src/main/java/org/kau/kkoolbeeServer/domain/diary/dto/request/SearchRequestDto.java

@@ -0,0 +1,8 @@
+package org.kau.kkoolbeeServer.domain.diary.dto.request;
+
+import lombok.Getter;
+
+@Getter
+public class SearchRequestDto {
+    private String searchKeyword;
+}

src/main/java/org/kau/kkoolbeeServer/domain/diary/dto/response/DiarySearchResponseDto.java

@@ -0,0 +1,19 @@
+package org.kau.kkoolbeeServer.domain.diary.dto.response;
+
+import lombok.AllArgsConstructor;
+import lombok.Getter;
+
+import java.time.LocalDateTime;
+
+@AllArgsConstructor
+@Getter
+public class DiarySearchResponseDto {
+    private Long diaryId;
+    private LocalDateTime createdDate;
+    private String diaryTitle;
+    private String imageUrl;
+
+    private String diaryContent;
+
+    private String keyWord;
+}

src/main/java/org/kau/kkoolbeeServer/domain/diary/repository/DiaryRepository.java

@@ -18,4 +18,6 @@ public interface DiaryRepository extends JpaRepository<Diary,Long> {
 
     List<Diary> findByMemberIdAndFeeling(Long memberId,Feeling feeling);
 
+    List<Diary> findByMemberIdAndTitleContainingOrContentContaining(Long memberId, String titleKeyword, String contentKeyword);
+
 }

src/main/java/org/kau/kkoolbeeServer/domain/diary/service/DiaryService.java

@@ -233,6 +233,11 @@ private String formatPromptForImageGeneration(String diaryContent) {
     }
 
 
+    public List<Diary> searchDiaries(Long memberId, String searchKeyword) {
+        return diaryRepository.findByMemberIdAndTitleContainingOrContentContaining(memberId, searchKeyword, searchKeyword);
+    }
+
+
 
 
 }