fix: 광고 API 코드 스타일 프로젝트 컨벤션에 맞게 통일

src/main/java/com/ongil/backend/domain/advertisement/controller/AdvertisementController.java

@@ -1,31 +1,31 @@
 package com.ongil.backend.domain.advertisement.controller;
 
+import java.util.List;
+
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RestController;
+
 import com.ongil.backend.domain.advertisement.dto.AdvertisementResponse;
 import com.ongil.backend.domain.advertisement.service.AdvertisementService;
 import com.ongil.backend.global.common.dto.DataResponse;
+
 import io.swagger.v3.oas.annotations.Operation;
 import io.swagger.v3.oas.annotations.tags.Tag;
 import lombok.RequiredArgsConstructor;
-import org.springframework.security.core.annotation.AuthenticationPrincipal;
-import org.springframework.web.bind.annotation.GetMapping;
-import org.springframework.web.bind.annotation.RequestMapping;
-import org.springframework.web.bind.annotation.RestController;
-
-import java.util.List;
 
 @RestController
 @RequiredArgsConstructor
 @RequestMapping("/api/advertisements")
 @Tag(name = "Advertisement", description = "광고/배너 관련 API")
 public class AdvertisementController {
 
-    private final AdvertisementService advertisementService;
+	private final AdvertisementService advertisementService;
 
-    @Operation(summary = "홈 화면 할인 광고 목록 조회", description = "메인 배너에 노출될 5개의 광고 목록을 반환합니다.")
-    @GetMapping("/home")
-    public DataResponse<List<AdvertisementResponse>> getHomeAdvertisements(
-    ) {
-        List<AdvertisementResponse> result = advertisementService.getHomeAdvertisements();
-        return DataResponse.from(result);
-    }
+	@Operation(summary = "홈 화면 할인 광고 목록 조회", description = "메인 배너에 노출될 5개의 광고 목록을 반환합니다.")
+	@GetMapping("/home")
+	public DataResponse<List<AdvertisementResponse>> getHomeAdvertisements() {
+		List<AdvertisementResponse> result = advertisementService.getHomeAdvertisements();
+		return DataResponse.from(result);
+	}
 }

src/main/java/com/ongil/backend/domain/advertisement/converter/AdvertisementConverter.java

@@ -1,18 +1,19 @@
 package com.ongil.backend.domain.advertisement.converter;
 
-import com.ongil.backend.domain.advertisement.dto.AdvertisementResponse;
 import org.springframework.stereotype.Component;
 
+import com.ongil.backend.domain.advertisement.dto.AdvertisementResponse;
+
 @Component
 public class AdvertisementConverter {
 
-    // 추후 Entity -> DTO 변환 시 사용
-    public AdvertisementResponse toResponse(Long id, String title, String description, String imageUrl) {
-        return AdvertisementResponse.builder()
-                .id(id)
-                .title(title)
-                .description(description)
-                .imageUrl(imageUrl)
-                .build();
-    }
+	// 추후 Entity -> DTO 변환 시 사용
+	public AdvertisementResponse toResponse(Long id, String title, String description, String imageUrl) {
+		return AdvertisementResponse.builder()
+			.id(id)
+			.title(title)
+			.description(description)
+			.imageUrl(imageUrl)
+			.build();
+	}
 }

src/main/java/com/ongil/backend/domain/advertisement/dto/AdvertisementResponse.java

@@ -1,12 +1,22 @@
 package com.ongil.backend.domain.advertisement.dto;
 
+import io.swagger.v3.oas.annotations.media.Schema;
 import lombok.Builder;
 
 @Builder
+@Schema(description = "할인 광고 응답")
 public record AdvertisementResponse(
-        Long id,
-        String imageUrl,
-        String title,
-        String description
+
+	@Schema(description = "광고 ID")
+	Long id,
+
+	@Schema(description = "광고 이미지 URL")
+	String imageUrl,
+
+	@Schema(description = "광고 제목")
+	String title,
+
+	@Schema(description = "광고 문구")
+	String description
 ) {
 }

src/main/java/com/ongil/backend/domain/advertisement/service/AdvertisementService.java

@@ -1,30 +1,31 @@
 package com.ongil.backend.domain.advertisement.service;
 
-import com.ongil.backend.domain.advertisement.converter.AdvertisementConverter;
-import com.ongil.backend.domain.advertisement.dto.AdvertisementResponse;
-import lombok.RequiredArgsConstructor;
+import java.util.List;
+
 import org.springframework.stereotype.Service;
 import org.springframework.transaction.annotation.Transactional;
 
-import java.util.List;
-import java.util.stream.IntStream;
+import com.ongil.backend.domain.advertisement.converter.AdvertisementConverter;
+import com.ongil.backend.domain.advertisement.dto.AdvertisementResponse;
+
+import lombok.RequiredArgsConstructor;
 
 @Service
 @RequiredArgsConstructor
 @Transactional(readOnly = true)
 public class AdvertisementService {
 
-    private final AdvertisementConverter advertisementConverter;
+	private final AdvertisementConverter advertisementConverter;
 
-     //메인 홈 화면 할인 광고 목록 조회 (Mock Data)
-    public List<AdvertisementResponse> getHomeAdvertisements() {
-        // 실제 DB 조회 대신 목데이터 5개 생성
-        return List.of(
-                advertisementConverter.toResponse(1L, "온길 새로운 파격 혜택", "홈쇼핑이 막막한 당신에게!", "https://example.com/images/ad1.jpg"),
-                advertisementConverter.toResponse(2L, "봄맞이 효도 상품 기획전", "부모님께 사랑을 전하세요", "https://example.com/images/ad2.jpg"),
-                advertisementConverter.toResponse(3L, "주말 한정 특가", "놓치면 후회할 베스트 아이템", "https://example.com/images/ad3.jpg"),
-                advertisementConverter.toResponse(4L, "신규 회원 웰컴 쿠폰", "가입 즉시 10,000원 할인", "https://example.com/images/ad4.jpg"),
-                advertisementConverter.toResponse(5L, "이달의 추천 카테고리", "가장 인기 있는 상품 모음", "https://example.com/images/ad5.jpg")
-        );
-    }
+	// 메인 홈 화면 할인 광고 목록 조회 (Mock Data)
+	public List<AdvertisementResponse> getHomeAdvertisements() {
+		// 실제 DB 조회 대신 목데이터 5개 생성
+		return List.of(
+			advertisementConverter.toResponse(1L, "온길 새로운 파격 혜택", "홈쇼핑이 막막한 당신에게!", "https://example.com/images/ad1.jpg"),
+			advertisementConverter.toResponse(2L, "봄맞이 효도 상품 기획전", "부모님께 사랑을 전하세요", "https://example.com/images/ad2.jpg"),
+			advertisementConverter.toResponse(3L, "주말 한정 특가", "놓치면 후회할 베스트 아이템", "https://example.com/images/ad3.jpg"),
+			advertisementConverter.toResponse(4L, "신규 회원 웰컴 쿠폰", "가입 즉시 10,000원 할인", "https://example.com/images/ad4.jpg"),
+			advertisementConverter.toResponse(5L, "이달의 추천 카테고리", "가장 인기 있는 상품 모음", "https://example.com/images/ad5.jpg")
+		);
+	}
 }