[SL-17 CHORE] user의 지원서 반환 시 null값 정보도 리턴하도록 수정

src/main/java/com/startlion/startlionserver/dto/response/application/ApplicationListWithSubmittedResponse.java

@@ -13,4 +13,7 @@ public class ApplicationListWithSubmittedResponse {
 
     // member의 작성 application의 List
     private List<ApplicationListGetResponse> applicationList;
+
+    // null값으로 채워진 ApplicationList
+    private ApplicationListGetResponse defaultApplicationList;
 }

src/main/java/com/startlion/startlionserver/service/UserService.java

@@ -23,12 +23,35 @@ public ApplicationListWithSubmittedResponse getApplicationList(Long userId) {
         List<Application> applications = applicationJpaRepository.findByUserUserId(userId);
 
         // applications 리스트를 순회하면서 status가 "Y"인 application이 있는지 확인
-        boolean isSubmittedExists = applications.stream()
-                .anyMatch(application -> "Y".equals(application.getStatus()));
+        boolean isSubmittedExists = checkIsSubmitted(applications);
 
         // boolean을 String으로 변환
-        String isSubmitted = isSubmittedExists ? "Y" : "N";
+        String isSubmitted = boolToString(isSubmittedExists);
+
+        // 지원서 리스트 가져오기
+        List<ApplicationListGetResponse> applicationList = loadApplicationList(applications);
+
+        // null값 지원서
+        ApplicationListGetResponse defaultApplication = ApplicationListGetResponse.of(null,null,null,null,null);
+
+
+        return new ApplicationListWithSubmittedResponse(isSubmitted, applicationList, defaultApplication);
+    }
+
+    // 제출된 지원서 있는지 체크
+    private boolean checkIsSubmitted(List<Application> applications){
+        boolean isSubmitted = applications.stream()
+                .anyMatch(application -> "Y".equals(application.getStatus()));
+        return isSubmitted;
+    }
+
+    // boolean을 String으로 변환
+    private String boolToString(boolean bool){
+        return bool ? "Y" : "N";
+    }
 
+    // 지원서 리스트 불러오기
+    private List<ApplicationListGetResponse> loadApplicationList(List<Application> applications){
         List<ApplicationListGetResponse> applicationList = applications.stream()
                 .map(application -> ApplicationListGetResponse.of(
                         application.getApplicationId(),
@@ -38,6 +61,6 @@ public ApplicationListWithSubmittedResponse getApplicationList(Long userId) {
                         application.getStatus()))
                 .collect(Collectors.toList());
 
-        return new ApplicationListWithSubmittedResponse(isSubmitted, applicationList);
+        return applicationList;
     }
 }