refactor: 🔧 지출 카테고리 유즈케이스 리팩토링 (#114)

* fix: 배포 파이프라인 이미지 빌드 버전 추가

* refactor: spending_category create 유즈케이스 리팩토링

* refactor: get_spending_categories usecase 리팩토링

pennyway-app-external-api/src/main/java/kr/co/pennyway/api/apis/ledger/mapper/SpendingCategoryMapper.java

@@ -0,0 +1,21 @@
+package kr.co.pennyway.api.apis.ledger.mapper;
+
+import kr.co.pennyway.api.apis.ledger.dto.SpendingCategoryDto;
+import kr.co.pennyway.common.annotation.Mapper;
+import kr.co.pennyway.domain.domains.spending.domain.SpendingCustomCategory;
+import kr.co.pennyway.domain.domains.spending.dto.CategoryInfo;
+
+import java.util.List;
+
+@Mapper
+public class SpendingCategoryMapper {
+    public static SpendingCategoryDto.Res toResponse(SpendingCustomCategory category) {
+        return SpendingCategoryDto.Res.from(CategoryInfo.of(category.getId(), category.getName(), category.getIcon()));
+    }
+
+    public static List<SpendingCategoryDto.Res> toResponses(List<SpendingCustomCategory> categories) {
+        return categories.stream()
+                .map(SpendingCategoryMapper::toResponse)
+                .toList();
+    }
+}

pennyway-app-external-api/src/main/java/kr/co/pennyway/api/apis/ledger/service/SpendingCategorySaveService.java

@@ -0,0 +1,28 @@
+package kr.co.pennyway.api.apis.ledger.service;
+
+import kr.co.pennyway.domain.domains.spending.domain.SpendingCustomCategory;
+import kr.co.pennyway.domain.domains.spending.service.SpendingCustomCategoryService;
+import kr.co.pennyway.domain.domains.spending.type.SpendingCategory;
+import kr.co.pennyway.domain.domains.user.domain.User;
+import kr.co.pennyway.domain.domains.user.exception.UserErrorCode;
+import kr.co.pennyway.domain.domains.user.exception.UserErrorException;
+import kr.co.pennyway.domain.domains.user.service.UserService;
+import lombok.RequiredArgsConstructor;
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.stereotype.Service;
+import org.springframework.transaction.annotation.Transactional;
+
+@Slf4j
+@Service
+@RequiredArgsConstructor
+public class SpendingCategorySaveService {
+    private final UserService userService;
+    private final SpendingCustomCategoryService spendingCustomCategoryService;
+
+    @Transactional
+    public SpendingCustomCategory execute(Long userId, String categoryName, SpendingCategory icon) {
+        User user = userService.readUser(userId).orElseThrow(() -> new UserErrorException(UserErrorCode.NOT_FOUND));
+
+        return spendingCustomCategoryService.createSpendingCustomCategory(SpendingCustomCategory.of(categoryName, icon, user));
+    }
+}

pennyway-app-external-api/src/main/java/kr/co/pennyway/api/apis/ledger/service/SpendingCategorySearchService.java

@@ -0,0 +1,22 @@
+package kr.co.pennyway.api.apis.ledger.service;
+
+import kr.co.pennyway.domain.domains.spending.domain.SpendingCustomCategory;
+import kr.co.pennyway.domain.domains.spending.service.SpendingCustomCategoryService;
+import lombok.RequiredArgsConstructor;
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.stereotype.Service;
+import org.springframework.transaction.annotation.Transactional;
+
+import java.util.List;
+
+@Slf4j
+@Service
+@RequiredArgsConstructor
+public class SpendingCategorySearchService {
+    private final SpendingCustomCategoryService spendingCustomCategoryService;
+
+    @Transactional(readOnly = true)
+    public List<SpendingCustomCategory> readSpendingCustomCategories(Long userId) {
+        return spendingCustomCategoryService.readSpendingCustomCategories(userId);
+    }
+}

pennyway-app-external-api/src/main/java/kr/co/pennyway/api/apis/ledger/usecase/SpendingCategoryUseCase.java

@@ -1,15 +1,12 @@
 package kr.co.pennyway.api.apis.ledger.usecase;
 
 import kr.co.pennyway.api.apis.ledger.dto.SpendingCategoryDto;
+import kr.co.pennyway.api.apis.ledger.mapper.SpendingCategoryMapper;
+import kr.co.pennyway.api.apis.ledger.service.SpendingCategorySaveService;
+import kr.co.pennyway.api.apis.ledger.service.SpendingCategorySearchService;
 import kr.co.pennyway.common.annotation.UseCase;
 import kr.co.pennyway.domain.domains.spending.domain.SpendingCustomCategory;
-import kr.co.pennyway.domain.domains.spending.dto.CategoryInfo;
-import kr.co.pennyway.domain.domains.spending.service.SpendingCustomCategoryService;
 import kr.co.pennyway.domain.domains.spending.type.SpendingCategory;
-import kr.co.pennyway.domain.domains.user.domain.User;
-import kr.co.pennyway.domain.domains.user.exception.UserErrorCode;
-import kr.co.pennyway.domain.domains.user.exception.UserErrorException;
-import kr.co.pennyway.domain.domains.user.service.UserService;
 import lombok.RequiredArgsConstructor;
 import lombok.extern.slf4j.Slf4j;
 import org.springframework.transaction.annotation.Transactional;
@@ -20,24 +17,20 @@
 @UseCase
 @RequiredArgsConstructor
 public class SpendingCategoryUseCase {
-    private final UserService userService;
-    private final SpendingCustomCategoryService spendingCustomCategoryService;
+    private final SpendingCategorySaveService spendingCategorySaveService;
+    private final SpendingCategorySearchService spendingCategorySearchService;
 
     @Transactional
     public SpendingCategoryDto.Res createSpendingCategory(Long userId, String categoryName, SpendingCategory icon) {
-        User user = userService.readUser(userId).orElseThrow(() -> new UserErrorException(UserErrorCode.NOT_FOUND));
+        SpendingCustomCategory category = spendingCategorySaveService.execute(userId, categoryName, icon);
 
-        SpendingCustomCategory category = spendingCustomCategoryService.createSpendingCustomCategory(SpendingCustomCategory.of(categoryName, icon, user));
-
-        return SpendingCategoryDto.Res.from(CategoryInfo.of(category.getId(), category.getName(), category.getIcon()));
+        return SpendingCategoryMapper.toResponse(category);
     }
 
     @Transactional(readOnly = true)
     public List<SpendingCategoryDto.Res> getSpendingCategories(Long userId) {
-        List<SpendingCustomCategory> categories = spendingCustomCategoryService.readSpendingCustomCategories(userId);
+        List<SpendingCustomCategory> categories = spendingCategorySearchService.readSpendingCustomCategories(userId);
 
-        return categories.stream()
-                .map(category -> SpendingCategoryDto.Res.from(CategoryInfo.of(category.getId(), category.getName(), category.getIcon())))
-                .toList();
+        return SpendingCategoryMapper.toResponses(categories);
     }
 }