🚀 2단계 - 리팩터링(메뉴)

src/main/java/kitchenpos/menus/tobe/application/DefaultProfanityChecker.java

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+package kitchenpos.menus.tobe.application;
+
+import kitchenpos.menus.tobe.domain.ProfanityChecker;
+import org.springframework.stereotype.Component;
+
+@Component("tobeMenuContextProfanityChecker")
+public class DefaultProfanityChecker implements ProfanityChecker {
+
+    private final PurgomalumClient purgomalumClient;
+
+    public DefaultProfanityChecker(final PurgomalumClient purgomalumClient) {
+        this.purgomalumClient = purgomalumClient;
+    }
+
+    @Override
+    public boolean containsProfanity(final String text) {
+        return purgomalumClient.containsProfanity(text);
+    }
+}

src/main/java/kitchenpos/menus/tobe/application/MenuCreateRequest.java

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+package kitchenpos.menus.tobe.application;
+
+import java.math.BigDecimal;
+import java.util.List;
+import java.util.UUID;
+
+public record MenuCreateRequest(
+        BigDecimal price,
+        String name,
+        boolean displayed,
+        UUID menuGroupId,
+        List<MenuProductRequest> menuProducts
+) {
+    public List<UUID> productIds() {
+        return menuProducts.stream()
+                .map(MenuProductRequest::productId)
+                .toList();
+    }
+}

src/main/java/kitchenpos/menus/tobe/application/MenuFacade.java

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+package kitchenpos.menus.tobe.application;
+
+import kitchenpos.menus.tobe.domain.*;
+import org.springframework.stereotype.Component;
+import org.springframework.transaction.annotation.Transactional;
+
+import java.util.UUID;
+
+@Component
+public class MenuFacade {
+    private final MenuService menuService;
+    private final MenuGroupService menuGroupService;
+    private final ProductClient productClient;
+    private final ProfanityChecker profanityChecker;
+
+
+    public MenuFacade(MenuService menuService, MenuGroupService menuGroupService, ProductClient productClient, ProfanityChecker profanityChecker) {
+        this.menuService = menuService;
+        this.menuGroupService = menuGroupService;
+        this.productClient = productClient;
+        this.profanityChecker = profanityChecker;
+    }
+
+    @Transactional
+    public Menu create(MenuCreateRequest request) {
+        final MenuName name = new MenuName(request.name(), profanityChecker);
+        final MenuPrice price = new MenuPrice(request.price());
+        final MenuGroup menuGroup = menuGroupService.findById(request.menuGroupId());
+        final ProductInfos productInfos = productClient.listByIds(request.productIds());
+        final MenuProductCatalog menuProductCatalog = new MenuProductCatalog(request.menuProducts(), productInfos);
+        return menuService.create(name, price, menuGroup, request.displayed(), menuProductCatalog);
+    }
+
+    @Transactional
+    public Menu changePrice(UUID menuId, MenuPriceChangeRequest request) {
+        final MenuPrice price = new MenuPrice(request.price());
+        final Menu menu = menuService.findById(menuId);
+        final ProductInfos productInfos = productClient.listByIds(menu.findProductIds());
+        return menuService.changePrice(menuId, price, productInfos);
+    }
+
+    @Transactional
+    public Menu display(UUID menuId) {
+        final Menu menu = menuService.findById(menuId);
+        final ProductInfos productInfos = productClient.listByIds(menu.findProductIds());
+        return menuService.display(menuId, productInfos);
+    }
+}

src/main/java/kitchenpos/menus/tobe/application/MenuGroupCreateRequest.java

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+package kitchenpos.menus.tobe.application;
+
+public record MenuGroupCreateRequest(String name) {
+}

src/main/java/kitchenpos/menus/tobe/application/MenuGroupService.java

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+package kitchenpos.menus.tobe.application;
+
+import kitchenpos.menus.tobe.domain.MenuGroup;
+import kitchenpos.menus.tobe.domain.MenuGroupName;
+import kitchenpos.menus.tobe.domain.MenuGroupRepository;
+import org.springframework.stereotype.Service;
+import org.springframework.transaction.annotation.Transactional;
+
+import java.util.List;
+import java.util.NoSuchElementException;
+import java.util.UUID;
+
+@Service("tobeMenuGroupService")
+public class MenuGroupService {
+    private final MenuGroupRepository menuGroupRepository;
+
+    public MenuGroupService(final MenuGroupRepository menuGroupRepository) {
+        this.menuGroupRepository = menuGroupRepository;
+    }
+
+    @Transactional
+    public MenuGroup create(final MenuGroupCreateRequest request) {
+        final MenuGroupName name = new MenuGroupName(request.name());
+        final MenuGroup menuGroup = new MenuGroup(UUID.randomUUID(), name);
+        return menuGroupRepository.save(menuGroup);
+    }
+
+    @Transactional(readOnly = true)
+    public List<MenuGroup> findAll() {
+        return menuGroupRepository.findAll();
+    }
+
+    @Transactional(readOnly = true)
+    public MenuGroup findById(UUID menuGroupId) {
+        return menuGroupRepository.findById(menuGroupId)
+                .orElseThrow(NoSuchElementException::new);
+    }
+}

src/main/java/kitchenpos/menus/tobe/application/MenuPriceChangeRequest.java

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+package kitchenpos.menus.tobe.application;
+
+import java.math.BigDecimal;
+
+public record MenuPriceChangeRequest(BigDecimal price) {
+}

src/main/java/kitchenpos/menus/tobe/application/MenuProductRequest.java

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+package kitchenpos.menus.tobe.application;
+
+import java.util.UUID;
+
+public record MenuProductRequest(UUID productId, long quantity) {
+
+}

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

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+package kitchenpos.menus.tobe.application;
+
+import kitchenpos.menus.tobe.domain.*;
+import org.springframework.stereotype.Service;
+import org.springframework.transaction.annotation.Transactional;
+
+import java.util.List;
+import java.util.NoSuchElementException;
+import java.util.UUID;
+
+@Service("tobeMenuService")
+public class MenuService {
+
+    private final MenuRepository menuRepository;
+
+    public MenuService(final MenuRepository menuRepository) {
+        this.menuRepository = menuRepository;
+    }
+
+    @Transactional
+    public Menu create(final MenuName name, final MenuPrice price, final MenuGroup menuGroup, final boolean displayed, final MenuProductCatalog menuProductCatalog) {
+        final Menu menu = new Menu(UUID.randomUUID(), name, price, menuGroup, displayed, menuProductCatalog);
+        return menuRepository.save(menu);
+    }
+
+    @Transactional
+    public Menu changePrice(final UUID menuId, final MenuPrice price, final ProductInfos productInfos) {
+        final Menu menu = menuRepository.findById(menuId)
+                .orElseThrow(NoSuchElementException::new);
+        menu.changePrice(price, productInfos);
+        return menu;
+    }
+
+    @Transactional
+    public Menu display(final UUID menuId, final ProductInfos productInfos) {
+        final Menu menu = menuRepository.findById(menuId)
+                .orElseThrow(NoSuchElementException::new);
+        menu.display(productInfos);
+        return menu;
+    }
+
+    @Transactional
+    public Menu hide(final UUID menuId) {
+        final Menu menu = menuRepository.findById(menuId)
+                .orElseThrow(NoSuchElementException::new);
+        menu.hide();
+        return menu;
+    }
+
+    @Transactional(readOnly = true)
+    public List<Menu> findAll() {
+        return menuRepository.findAll();
+    }
+
+    @Transactional(readOnly = true)
+    public Menu findById(UUID menuId) {
+        return menuRepository.findById(menuId)
+                .orElseThrow(NoSuchElementException::new);
+    }
+}

src/main/java/kitchenpos/menus/tobe/application/ProductClient.java

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+package kitchenpos.menus.tobe.application;
+
+import kitchenpos.menus.tobe.domain.ProductInfos;
+
+import java.util.List;
+import java.util.UUID;
+
+public interface ProductClient {
+    ProductInfos listByIds(List<UUID> productIds);
+}

src/main/java/kitchenpos/menus/tobe/application/PurgomalumClient.java

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+package kitchenpos.menus.tobe.application;
+
+public interface PurgomalumClient {
+
+    boolean containsProfanity(String text);
+}

src/main/java/kitchenpos/menus/tobe/domain/JpaMenuGroupRepository.java

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+package kitchenpos.menus.tobe.domain;
+
+import org.springframework.data.jpa.repository.JpaRepository;
+import org.springframework.stereotype.Repository;
+
+import java.util.UUID;
+
+@Repository("menuGroupToBeRepository")
+public interface JpaMenuGroupRepository extends MenuGroupRepository, JpaRepository<MenuGroup, UUID> {
+}

src/main/java/kitchenpos/menus/tobe/domain/JpaMenuRepository.java

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+package kitchenpos.menus.tobe.domain;
+
+import org.springframework.data.jpa.repository.JpaRepository;
+import org.springframework.data.jpa.repository.Query;
+import org.springframework.data.repository.query.Param;
+import org.springframework.stereotype.Repository;
+
+import java.util.List;
+import java.util.UUID;
+
+@Repository("menuToBeRepository")
+public interface JpaMenuRepository extends MenuRepository, JpaRepository<Menu, UUID> {
+    @Query("select m from Menu m join m.menuProducts mp where mp.product.id = :productId")
+    @Override
+    List<Menu> findAllByProductId(@Param("productId") UUID productId);
+}

src/main/java/kitchenpos/menus/tobe/domain/Menu.java

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+package kitchenpos.menus.tobe.domain;
+
+import jakarta.persistence.*;
+
+import java.math.BigDecimal;
+import java.util.List;
+import java.util.UUID;
+
+@Table(name = "menu")
+@Entity(name = "tobeMenu")
+public class Menu {
+    @Column(name = "id", columnDefinition = "binary(16)")
+    @Id
+    private UUID id;
+
+    @Embedded
+    private MenuName name;
+
+    @Embedded
+    private MenuPrice price;
+
+    @ManyToOne(optional = false)
+    @JoinColumn(
+            name = "menu_group_id",
+            columnDefinition = "binary(16)",
+            foreignKey = @ForeignKey(name = "fk_menu_to_menu_group")
+    )
+    private MenuGroup menuGroup;
+
+    @Column(name = "displayed", nullable = false)
+    private boolean displayed;
+
+    @Embedded
+    private MenuProducts menuProducts;
+
+    @Transient
+    private UUID menuGroupId;
+
+    protected Menu() {
+    }
+
+    public Menu(UUID id, MenuName name, MenuPrice price, MenuGroup menuGroup, boolean displayed, MenuProductCatalog menuProductCatalog) {
+        validatePrice(price, menuProductCatalog.calculateTotalPrice());
+        this.id = id;
+        this.name = name;
+        this.price = price;
+        this.menuGroup = menuGroup;
+        this.displayed = displayed;
+        this.menuProducts = new MenuProducts(menuProductCatalog);
+    }
+
+    private void validatePrice(MenuPrice price, BigDecimal total) {
+        if (!price.isGreaterThan(total)) {
+            throw new IllegalArgumentException("메뉴 가격이 전체 메뉴 상품의 가격 합보다 같거나 작아야 한다");
+        }
+    }
+
+    public UUID getId() {
+        return id;
+    }
+
+    public void changePrice(MenuPrice price, ProductInfos productInfos) {
+        validatePrice(price, menuProducts.calculateTotalPrice(productInfos));
+        this.price = price;
+    }
+
+    public List<UUID> findProductIds() {
+        return menuProducts.getProductIds();
+    }
+
+    public void display(ProductInfos productInfos) {
+        validatePrice(price, menuProducts.calculateTotalPrice(productInfos));
+        this.displayed = true;
+    }
+
+    public void hide() {
+        this.displayed = false;
+    }
+
+    public MenuPrice getPrice() {
+        return price;
+    }
+}

src/main/java/kitchenpos/menus/tobe/domain/MenuGroup.java

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+package kitchenpos.menus.tobe.domain;
+
+import jakarta.persistence.*;
+
+import java.util.UUID;
+
+@Table(name = "menu_group")
+@Entity(name = "tobeMenuGroup")
+public class MenuGroup {
+    @Column(name = "id", columnDefinition = "binary(16)")
+    @Id
+    private UUID id;
+
+    @Embedded
+    private MenuGroupName name;
+
+    protected MenuGroup() {
+    }
+
+    public MenuGroup(final UUID id, final MenuGroupName name) {
+        this.id = id;
+        this.name = name;
+    }
+
+    public UUID getId() {
+        return id;
+    }
+}

src/main/java/kitchenpos/menus/tobe/domain/MenuGroupName.java

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+package kitchenpos.menus.tobe.domain;
+
+import jakarta.persistence.Column;
+import jakarta.persistence.Embeddable;
+
+@Embeddable
+public class MenuGroupName {
+
+    @Column(name = "name", nullable = false)
+    private String name;
+
+    protected MenuGroupName() {
+    }
+
+    public MenuGroupName(final String name) {
+        if (name == null || name.isEmpty()) {
+            throw new IllegalArgumentException("메뉴 그룹 이름은 필수로 입력해야 합니다.");
+        }
+        this.name = name;
+    }
+
+    public String value() {
+        return name;
+    }
+}