🚀 1단계 - 리팩터링(상품)

src/main/java/kitchenpos/global/exception/GlobalRestControllerAdvice.java

@@ -0,0 +1,23 @@
+package kitchenpos.global.exception;
+
+import kitchenpos.global.exception.dto.ErrorCode;
+import kitchenpos.global.exception.dto.ExceptionResponse;
+import org.springframework.web.bind.annotation.ExceptionHandler;
+import org.springframework.web.bind.annotation.ResponseBody;
+import org.springframework.web.bind.annotation.RestControllerAdvice;
+
+import java.util.NoSuchElementException;
+
+@RestControllerAdvice
+public class GlobalRestControllerAdvice {
+
+    @ResponseBody
+    @ExceptionHandler(NoSuchElementException.class)
+    public ExceptionResponse noSuchElementExceptionHandler(NoSuchElementException exception) {
+        return new ExceptionResponse(
+                ErrorCode.NO_SUCH_ELEMENT.getCode(),
+                ErrorCode.NO_SUCH_ELEMENT.getMessage()
+        );
+    }
+
+}

src/main/java/kitchenpos/global/exception/custom/NotFoundProductException.java

@@ -0,0 +1,8 @@
+package kitchenpos.global.exception.custom;
+
+import java.util.NoSuchElementException;
+
+public class NotFoundProductException extends NoSuchElementException {
+    public NotFoundProductException() {
+    }
+}

src/main/java/kitchenpos/global/exception/dto/ErrorCode.java

@@ -0,0 +1,22 @@
+package kitchenpos.global.exception.dto;
+
+public enum ErrorCode {
+
+    NO_SUCH_ELEMENT("E001", "데이터를 찾지 못했습니다.");
+
+    private final String code;
+    private final String message;
+
+    ErrorCode(String code, String message) {
+        this.code = code;
+        this.message = message;
+    }
+
+    public String getCode() {
+        return code;
+    }
+
+    public String getMessage() {
+        return message;
+    }
+}

src/main/java/kitchenpos/global/exception/dto/ExceptionResponse.java

@@ -0,0 +1,20 @@
+package kitchenpos.global.exception.dto;
+
+public class ExceptionResponse {
+
+    private final String code;
+    private final String message;
+
+    public ExceptionResponse(String code, String message) {
+        this.code = code;
+        this.message = message;
+    }
+
+    public String getCode() {
+        return code;
+    }
+
+    public String getMessage() {
+        return message;
+    }
+}

src/main/java/kitchenpos/menus/application/MenuEventListener.java

@@ -0,0 +1,20 @@
+package kitchenpos.menus.application;
+
+import kitchenpos.menus.application.dto.MenuEvent;
+import org.springframework.context.event.EventListener;
+import org.springframework.stereotype.Component;
+
+@Component
+public class MenuEventListener {
+
+    private final MenuService menuService;
+
+    public MenuEventListener(MenuService menuService) {
+        this.menuService = menuService;
+    }
+
+    @EventListener
+    public void changeMenuDisplayStatus(final MenuEvent menuEvent) {
+        menuService.changeMenuDisplayStatus(menuEvent.getProductId());
+    }
+}

src/main/java/kitchenpos/menus/application/MenuService.java

@@ -1,8 +1,8 @@
 package kitchenpos.menus.application;
 
 import kitchenpos.menus.domain.*;
-import kitchenpos.products.domain.Product;
-import kitchenpos.products.domain.ProductRepository;
+import kitchenpos.products.tobe.domain.Product;
+import kitchenpos.products.tobe.domain.ProductRepository;
 import kitchenpos.products.infra.PurgomalumClient;
 import org.springframework.stereotype.Service;
 import org.springframework.transaction.annotation.Transactional;
@@ -12,6 +12,7 @@
 import java.util.stream.Collectors;
 
 @Service
+@Transactional
 public class MenuService {
     private final MenuRepository menuRepository;
     private final MenuGroupRepository menuGroupRepository;
@@ -30,7 +31,6 @@ public MenuService(
         this.purgomalumClient = purgomalumClient;
     }
 
-    @Transactional
     public Menu create(final Menu request) {
         final BigDecimal price = request.getPrice();
         if (Objects.isNull(price) || price.compareTo(BigDecimal.ZERO) < 0) {
@@ -61,6 +61,7 @@ public Menu create(final Menu request) {
                 .orElseThrow(NoSuchElementException::new);
             sum = sum.add(
                 product.getPrice()
+                        .getProductPrice()
                     .multiply(BigDecimal.valueOf(quantity))
             );
             final MenuProduct menuProduct = new MenuProduct();
@@ -85,7 +86,6 @@ public Menu create(final Menu request) {
         return menuRepository.save(menu);
     }
 
-    @Transactional
     public Menu changePrice(final UUID menuId, final Menu request) {
         final BigDecimal price = request.getPrice();
         if (Objects.isNull(price) || price.compareTo(BigDecimal.ZERO) < 0) {
@@ -98,6 +98,7 @@ public Menu changePrice(final UUID menuId, final Menu request) {
             sum = sum.add(
                 menuProduct.getProduct()
                     .getPrice()
+                        .getProductPrice()
                     .multiply(BigDecimal.valueOf(menuProduct.getQuantity()))
             );
         }
@@ -108,7 +109,6 @@ public Menu changePrice(final UUID menuId, final Menu request) {
         return menu;
     }
 
-    @Transactional
     public Menu display(final UUID menuId) {
         final Menu menu = menuRepository.findById(menuId)
             .orElseThrow(NoSuchElementException::new);
@@ -117,6 +117,7 @@ public Menu display(final UUID menuId) {
             sum = sum.add(
                 menuProduct.getProduct()
                     .getPrice()
+                        .getProductPrice()
                     .multiply(BigDecimal.valueOf(menuProduct.getQuantity()))
             );
         }
@@ -127,14 +128,26 @@ public Menu display(final UUID menuId) {
         return menu;
     }
 
-    @Transactional
     public Menu hide(final UUID menuId) {
         final Menu menu = menuRepository.findById(menuId)
             .orElseThrow(NoSuchElementException::new);
         menu.setDisplayed(false);
         return menu;
     }
 
+    public void changeMenuDisplayStatus(final UUID productId) {
+        menuRepository.findAllByProductId(productId)
+                .forEach(menu -> {
+                    BigDecimal sum = menu.getMenuProducts().stream()
+                            .map(menuProduct -> menuProduct.getProduct().getPrice().getProductPrice().multiply(BigDecimal.valueOf(menuProduct.getQuantity())))
+                            .reduce(BigDecimal.ZERO, BigDecimal::add);
+
+                    if (menu.getPrice().compareTo(sum) > 0) {
+                        menu.setDisplayed(false);
+                    }
+                });
+    }
+
     @Transactional(readOnly = true)
     public List<Menu> findAll() {
         return menuRepository.findAll();

src/main/java/kitchenpos/menus/application/dto/MenuEvent.java

@@ -0,0 +1,9 @@
+package kitchenpos.menus.application.dto;
+
+import java.util.UUID;
+
+public abstract class MenuEvent {
+
+    public abstract UUID getProductId();
+
+}

src/main/java/kitchenpos/menus/domain/MenuProduct.java

@@ -1,6 +1,6 @@
 package kitchenpos.menus.domain;
 
-import kitchenpos.products.domain.Product;
+import kitchenpos.products.tobe.domain.Product;
 
 import javax.persistence.*;
 import java.util.UUID;