Merge pull request #161 from dnd-side-project/dev

feat(UsersController): 회원 탈퇴 기능

Author: gzhan0226

main-server/src/main/java/com/example/demo/domain/user/controller/UsersController.java

@@ -13,10 +13,7 @@
 import lombok.RequiredArgsConstructor;
 import org.springframework.http.ResponseEntity;
 import org.springframework.security.core.annotation.AuthenticationPrincipal;
-import org.springframework.web.bind.annotation.ModelAttribute;
-import org.springframework.web.bind.annotation.PatchMapping;
-import org.springframework.web.bind.annotation.RequestMapping;
-import org.springframework.web.bind.annotation.RestController;
+import org.springframework.web.bind.annotation.*;
 
 import java.io.IOException;
 
@@ -36,10 +33,23 @@ public class UsersController {
     @ApiResponse(content = @Content(schema = @Schema(implementation = UpdateProfileResponse.class)))
     @PatchMapping("/profile")
     public ResponseEntity<UpdateProfileResponse> updateProfile(
-            @AuthenticationPrincipal CustomUserDetails userDetails,
+            @AuthenticationPrincipal CustomUserDetails me,
             @ModelAttribute UpdateProfileRequest request // MultipartFile + String 같이 받기 위해 @ModelAttribute
     ) throws IOException {
-        UpdateProfileResponse response = usersService.updateProfile(userDetails.getId(), request);
+        UpdateProfileResponse response = usersService.updateProfile(me.getId(), request);
         return ResponseEntity.ok(response);
     }
+
+    @Operation(
+            summary = "계정 탈퇴",
+            description = "계정 정보를 삭제하고, 서비스에서 탈퇴합니다"
+    )
+    @ApiResponse(content = @Content(schema = @Schema(implementation = String.class)))
+    @DeleteMapping("/account")
+    public ResponseEntity<String> deleteMyAccount(
+            @AuthenticationPrincipal CustomUserDetails me
+    ) {
+        usersService.deleteAccount(me.getId());
+        return ResponseEntity.ok("서비스에서 탈퇴하였습니다");
+    }
 }

main-server/src/main/java/com/example/demo/domain/user/service/UsersService.java

@@ -57,4 +57,17 @@ public UpdateProfileResponse updateProfile(String userId, UpdateProfileRequest r
 
         return new UpdateProfileResponse(user.getId(), user.getUsername(), user.getProfileUrl());
     }
+
+    @Transactional
+    public void deleteAccount(String userId) {
+        Users user = usersRepository.findById(userId)
+                .orElseThrow(() -> new UserException(UserErrorCode.USER_NOT_FOUND));
+
+        String imageKey = r2Service.extractKey(user.getProfileUrl());
+        if (imageKey != null && !imageKey.isBlank()) {
+            r2Service.delete(imageKey);
+        }
+
+        usersRepository.delete(user);
+    }
 }