✨ [Feat] 폰트 이름 중복검사 추가

src/main/java/org/fontory/fontorybe/common/controller/GlobalExceptionHandler.java

@@ -10,6 +10,7 @@
 import org.fontory.fontorybe.file.adapter.inbound.exception.FileUploadException;
 import org.fontory.fontorybe.file.domain.exception.InvalidMultipartRequestException;
 import org.fontory.fontorybe.file.domain.exception.SingleFileRequiredException;
+import org.fontory.fontorybe.font.domain.exception.FontDuplicateNameExistsException;
 import org.fontory.fontorybe.font.domain.exception.FontNotFoundException;
 import org.fontory.fontorybe.font.domain.exception.FontOwnerMismatchException;
 import org.fontory.fontorybe.font.domain.exception.FontSQSProduceExcepetion;
@@ -34,8 +35,8 @@ public BaseErrorResponse notFoundException(Exception e) {
     }
 
     @ResponseStatus(HttpStatus.FORBIDDEN)
-    @ExceptionHandler(MemberDuplicateNameExistsException.class)
-    public BaseErrorResponse memberDuplicateNameExists(MemberDuplicateNameExistsException e) {
+    @ExceptionHandler({MemberDuplicateNameExistsException.class, FontDuplicateNameExistsException.class})
+    public BaseErrorResponse duplicateNameExists(Exception e) {
         return new BaseErrorResponse(e.getMessage());
     }
 

src/main/java/org/fontory/fontorybe/font/controller/FontController.java

@@ -307,4 +307,24 @@ public ResponseEntity<?> downloadFont(
                 .status(HttpStatus.OK)
                 .body(res);
     }
+
+    @Operation(
+            summary = "폰트 이름 중복 검사",
+            description = "이름이 중복이면 true를 반환합니다."
+    )
+    @PostMapping("/verify-name")
+    public ResponseEntity<?> verifyFontName(
+            @Login UserPrincipal userPrincipal,
+            @RequestBody FontCreateDTO fontCreateDTO
+    ) {
+        Long memberId = userPrincipal.getId();
+        log.info("Request received: Check if font name is duplicate: {}", fontCreateDTO.getName());
+
+        Boolean duplicateNameExist = fontService.isDuplicateNameExists(memberId, fontCreateDTO.getName());
+        log.info("Response sent: Font name {} is {}", fontCreateDTO.getName(), duplicateNameExist ? "duplicate" : "available");
+
+        return ResponseEntity
+                .status(HttpStatus.OK)
+                .body(duplicateNameExist);
+    }
 }

src/main/java/org/fontory/fontorybe/font/controller/port/FontService.java

@@ -26,4 +26,5 @@ public interface FontService {
     List<FontResponse> getPopularFonts(Long memberId);
     Font updateProgress(Long fontId, FontProgressUpdateDTO fontProgressUpdateDTO);
     FontResponse fontDownload(Long memberId, Long fontId);
+    Boolean isDuplicateNameExists(Long memberId, String fontName);
 }

src/main/java/org/fontory/fontorybe/font/domain/exception/FontDuplicateNameExistsException.java

@@ -0,0 +1,10 @@
+package org.fontory.fontorybe.font.domain.exception;
+
+import org.fontory.fontorybe.common.domain.SkipDiscordNotification;
+
+@SkipDiscordNotification
+public class FontDuplicateNameExistsException extends RuntimeException {
+    public FontDuplicateNameExistsException() {
+        super("Font name is duplicate");
+    }
+}

src/main/java/org/fontory/fontorybe/font/infrastructure/FontJpaRepository.java

@@ -19,4 +19,5 @@ public interface FontJpaRepository extends JpaRepository<FontEntity, Long> {
     List<FontEntity> findTop4ByMemberIdOrderByDownloadAndBookmarkCountDesc(@Param("memberId") Long memberId, Pageable pageable);
     @Query("SELECT f FROM FontEntity f ORDER BY (f.downloadCount + f.bookmarkCount) DESC")
     List<FontEntity> findTop3OrderByDownloadAndBookmarkCountDesc(Pageable pageable);
+    boolean existsByName(String fontName);
 }

src/main/java/org/fontory/fontorybe/font/infrastructure/FontRepositoryImpl.java

@@ -106,4 +106,9 @@ public List<Font> findTop3OrderByDownloadAndBookmarkCountDesc() {
                 .map(FontEntity::toModel)
                 .collect(Collectors.toList());
     }
+
+    @Override
+    public boolean existsByName(String fontName) {
+        return fontJpaRepository.existsByName(fontName);
+    }
 }

src/main/java/org/fontory/fontorybe/font/service/FontServiceImpl.java

@@ -15,6 +15,7 @@
 import org.fontory.fontorybe.font.controller.dto.FontUpdateDTO;
 import org.fontory.fontorybe.font.controller.port.FontService;
 import org.fontory.fontorybe.font.domain.Font;
+import org.fontory.fontorybe.font.domain.exception.FontDuplicateNameExistsException;
 import org.fontory.fontorybe.font.domain.exception.FontNotFoundException;
 import org.fontory.fontorybe.font.domain.exception.FontOwnerMismatchException;
 import org.fontory.fontorybe.font.service.dto.FontRequestProduceDto;
@@ -46,6 +47,10 @@ public Font create(Long memberId, FontCreateDTO fontCreateDTO, FileDetails fileD
         log.info("Service executing: Creating font for member ID: {}, font name: {}", memberId, fontCreateDTO.getName());
         Member member = memberService.getOrThrowById(memberId);
 
+        if (isDuplicateNameExists(memberId, fontCreateDTO.getName())) {
+            throw new FontDuplicateNameExistsException();
+        }
+
         Font savedFont = fontRepository.save(Font.from(fontCreateDTO, member.getId(), fileDetails));
         fontRequestProducer.sendFontRequest(FontRequestProduceDto.from(savedFont, member));
 
@@ -297,6 +302,13 @@ public FontResponse fontDownload(Long memberId, Long fontId) {
         return FontResponse.from(targetFont, isBookmarked, writer.getNickname());
     }
 
+    @Override
+    @Transactional(readOnly = true)
+    public Boolean isDuplicateNameExists(Long memberId, String fontName) {
+        Member member = memberService.getOrThrowById(memberId);
+        return fontRepository.existsByName(fontName);
+    }
+
     private void checkFontOwnership(Long requestMemberId, Long targetMemberId) {
         log.debug("Service detail: Checking font ownership: requestMemberId={}, targetMemberId={}", 
                 requestMemberId, targetMemberId);

src/main/java/org/fontory/fontorybe/font/service/port/FontRepository.java

@@ -18,4 +18,5 @@ public interface FontRepository {
     List<Font> findAllByIdIn(List<Long> ids);
     List<Font> findTop4ByMemberIdOrderByDownloadAndBookmarkCountDesc(Long memberId);
     List<Font> findTop3OrderByDownloadAndBookmarkCountDesc();
+    boolean existsByName(String fontName);
 }