feat: 상점 메뉴 조회 API 구현

src/main/java/in/koreatech/koin/controller/shop/ShopController.java

@@ -0,0 +1,23 @@
+package in.koreatech.koin.controller.shop;
+
+import org.springframework.http.ResponseEntity;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.PathVariable;
+import org.springframework.web.bind.annotation.RestController;
+
+import in.koreatech.koin.dto.shop.ShopMenuResponse;
+import in.koreatech.koin.service.shop.ShopService;
+import lombok.RequiredArgsConstructor;
+
+@RestController
+@RequiredArgsConstructor
+public class ShopController {
+
+    private final ShopService shopService;
+
+    @GetMapping("/shops/{shopId}/menus/{menuId}")
+    public ResponseEntity<ShopMenuResponse> findMenu(@PathVariable Long shopId, @PathVariable Long menuId) {
+        ShopMenuResponse shopMenu = shopService.findMenu(menuId);
+        return ResponseEntity.ok(shopMenu);
+    }
+}

src/main/java/in/koreatech/koin/domain/shop/Menu.java

@@ -0,0 +1,84 @@
+package in.koreatech.koin.domain.shop;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import in.koreatech.koin.domain.BaseEntity;
+import jakarta.persistence.CascadeType;
+import jakarta.persistence.Column;
+import jakarta.persistence.Entity;
+import jakarta.persistence.GeneratedValue;
+import jakarta.persistence.GenerationType;
+import jakarta.persistence.Id;
+import jakarta.persistence.OneToMany;
+import jakarta.persistence.Table;
+import jakarta.validation.constraints.NotNull;
+import jakarta.validation.constraints.Size;
+import lombok.AccessLevel;
+import lombok.Builder;
+import lombok.Getter;
+import lombok.NoArgsConstructor;
+
+@Getter
+@Entity
+@Table(name = "shop_menus")
+@NoArgsConstructor(access = AccessLevel.PROTECTED)
+public class Menu extends BaseEntity {
+
+    private static final int SINGLE_OPTION_COUNT = 1;
+
+    @Id
+    @Column(name = "id", nullable = false)
+    @GeneratedValue(strategy = GenerationType.IDENTITY)
+    private Long id;
+
+    @NotNull
+    @Column(name = "shop_id", nullable = false)
+    private Long shopId;
+
+    @Size(max = 255)
+    @NotNull
+    @Column(name = "name", nullable = false)
+    private String name;
+
+    @Size(max = 255)
+    @Column(name = "description")
+    private String description;
+
+    @NotNull
+    @Column(name = "is_hidden", nullable = false)
+    private Boolean isHidden = false;
+
+    @NotNull
+    @Column(name = "is_deleted", nullable = false)
+    private Boolean isDeleted = false;
+
+    @OneToMany(mappedBy = "menu", orphanRemoval = true, cascade = CascadeType.ALL)
+    private List<MenuCategoryMap> menuCategoryMaps = new ArrayList<>();
+
+    @OneToMany(mappedBy = "menu", orphanRemoval = true, cascade = CascadeType.ALL)
+    private List<MenuOption> menuOptions = new ArrayList<>();
+
+    @OneToMany(mappedBy = "menu", orphanRemoval = true, cascade = CascadeType.ALL)
+    private List<MenuImage> menuImages = new ArrayList<>();
+
+    @Builder
+    private Menu(Long shopId, String name, String description) {
+        this.shopId = shopId;
+        this.name = name;
+        this.description = description;
+    }
+
+    public boolean hasMultipleOption() {
+        return menuOptions.size() > SINGLE_OPTION_COUNT;
+    }
+
+    @Override
+    public String toString() {
+        return "Menu{" +
+            "id=" + id +
+            ", shopId=" + shopId +
+            ", name='" + name + '\'' +
+            '}';
+    }
+}

src/main/java/in/koreatech/koin/domain/shop/MenuCategory.java

@@ -0,0 +1,53 @@
+package in.koreatech.koin.domain.shop;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import in.koreatech.koin.domain.BaseEntity;
+import jakarta.persistence.Column;
+import jakarta.persistence.Entity;
+import jakarta.persistence.GeneratedValue;
+import jakarta.persistence.GenerationType;
+import jakarta.persistence.Id;
+import jakarta.persistence.OneToMany;
+import jakarta.persistence.Table;
+import jakarta.validation.constraints.NotNull;
+import jakarta.validation.constraints.Size;
+import lombok.AccessLevel;
+import lombok.Builder;
+import lombok.Getter;
+import lombok.NoArgsConstructor;
+
+@Getter
+@Entity
+@Table(name = "shop_menu_categories")
+@NoArgsConstructor(access = AccessLevel.PROTECTED)
+public final class MenuCategory extends BaseEntity {
+
+    @Id
+    @Column(name = "id", nullable = false)
+    @GeneratedValue(strategy = GenerationType.IDENTITY)
+    private Long id;
+
+    @NotNull
+    @Column(name = "shop_id", nullable = false)
+    private Long shopId;
+
+    @Size(max = 255)
+    @NotNull
+    @Column(name = "name", nullable = false)
+    private String name;
+
+    @NotNull
+    @Column(name = "is_deleted", nullable = false)
+    private Boolean isDeleted = false;
+
+    @OneToMany(mappedBy = "menuCategory")
+    private List<MenuCategoryMap> menuCategoryMaps = new ArrayList<>();
+
+    @Builder
+    private MenuCategory(Long shopId, String name) {
+        this.shopId = shopId;
+        this.name = name;
+    }
+}

src/main/java/in/koreatech/koin/domain/shop/MenuCategoryMap.java

@@ -0,0 +1,70 @@
+package in.koreatech.koin.domain.shop;
+
+import jakarta.persistence.CascadeType;
+import jakarta.persistence.Column;
+import jakarta.persistence.Entity;
+import jakarta.persistence.FetchType;
+import jakarta.persistence.GeneratedValue;
+import jakarta.persistence.GenerationType;
+import jakarta.persistence.Id;
+import jakarta.persistence.JoinColumn;
+import jakarta.persistence.ManyToOne;
+import jakarta.persistence.Table;
+import lombok.AccessLevel;
+import lombok.Getter;
+import lombok.NoArgsConstructor;
+
+@Getter
+@Entity
+@Table(name = "shop_menu_category_map")
+@NoArgsConstructor(access = AccessLevel.PROTECTED)
+public class MenuCategoryMap {
+
+    @Id
+    @Column(name = "id", nullable = false)
+    @GeneratedValue(strategy = GenerationType.IDENTITY)
+    private Long id;
+
+    @ManyToOne(fetch = FetchType.LAZY)
+    @JoinColumn(name = "shop_menu_id")
+    private Menu menu;
+
+    @ManyToOne(fetch = FetchType.LAZY, cascade = CascadeType.PERSIST)
+    @JoinColumn(name = "shop_menu_category_id")
+    private MenuCategory menuCategory;
+
+    public static MenuCategoryMap create() {
+        return new MenuCategoryMap();
+    }
+
+    public void map(Menu menu, MenuCategory menuCategory) {
+        setMenu(menu);
+        setMenuCategory(menuCategory);
+    }
+
+    private void setMenu(Menu menu) {
+        if (menu.equals(this.menu)) {
+            return;
+        }
+
+        if (this.menu != null) {
+            this.menu.getMenuCategoryMaps().remove(this);
+        }
+
+        this.menu = menu;
+        menu.getMenuCategoryMaps().add(this);
+    }
+
+    private void setMenuCategory(MenuCategory menuCategory) {
+        if (menuCategory.equals(this.menuCategory)) {
+            return;
+        }
+
+        if (this.menuCategory != null) {
+            this.menuCategory.getMenuCategoryMaps().remove(this);
+        }
+
+        this.menuCategory = menuCategory;
+        menuCategory.getMenuCategoryMaps().add(this);
+    }
+}

src/main/java/in/koreatech/koin/domain/shop/MenuImage.java

@@ -0,0 +1,55 @@
+package in.koreatech.koin.domain.shop;
+
+import jakarta.persistence.Column;
+import jakarta.persistence.Entity;
+import jakarta.persistence.FetchType;
+import jakarta.persistence.GeneratedValue;
+import jakarta.persistence.GenerationType;
+import jakarta.persistence.Id;
+import jakarta.persistence.JoinColumn;
+import jakarta.persistence.ManyToOne;
+import jakarta.persistence.Table;
+import jakarta.validation.constraints.NotNull;
+import jakarta.validation.constraints.Size;
+import lombok.AccessLevel;
+import lombok.Builder;
+import lombok.Getter;
+import lombok.NoArgsConstructor;
+
+@Getter
+@Entity
+@Table(name = "shop_menu_images")
+@NoArgsConstructor(access = AccessLevel.PROTECTED)
+public class MenuImage {
+
+    @Id
+    @Column(name = "id", nullable = false)
+    @GeneratedValue(strategy = GenerationType.IDENTITY)
+    private Long id;
+
+    @ManyToOne(fetch = FetchType.LAZY)
+    @JoinColumn(name = "shop_menu_id")
+    private Menu menu;
+
+    @Size(max = 255)
+    @NotNull
+    @Column(name = "image_url", nullable = false)
+    private String imageUrl;
+
+    @Builder
+    private MenuImage(String imageUrl) {
+        this.imageUrl = imageUrl;
+    }
+
+    public void setMenu(Menu menu) {
+        if (menu.equals(this.menu)) {
+            return;
+        }
+
+        if (this.menu != null) {
+            this.menu.getMenuImages().remove(this);
+        }
+        this.menu = menu;
+        this.menu.getMenuImages().add(this);
+    }
+}

src/main/java/in/koreatech/koin/domain/shop/MenuOption.java

@@ -0,0 +1,60 @@
+package in.koreatech.koin.domain.shop;
+
+import in.koreatech.koin.domain.BaseEntity;
+import jakarta.persistence.Column;
+import jakarta.persistence.Entity;
+import jakarta.persistence.FetchType;
+import jakarta.persistence.GeneratedValue;
+import jakarta.persistence.GenerationType;
+import jakarta.persistence.Id;
+import jakarta.persistence.JoinColumn;
+import jakarta.persistence.ManyToOne;
+import jakarta.persistence.Table;
+import jakarta.validation.constraints.NotNull;
+import jakarta.validation.constraints.Size;
+import lombok.AccessLevel;
+import lombok.Builder;
+import lombok.Getter;
+import lombok.NoArgsConstructor;
+
+@Getter
+@Entity
+@Table(name = "shop_menu_details")
+@NoArgsConstructor(access = AccessLevel.PROTECTED)
+public class MenuOption extends BaseEntity {
+
+    @Id
+    @Column(name = "id", nullable = false)
+    @GeneratedValue(strategy = GenerationType.IDENTITY)
+    private Long id;
+
+    @ManyToOne(fetch = FetchType.LAZY)
+    @JoinColumn(name = "shop_menu_id")
+    private Menu menu;
+
+    @Size(max = 255)
+    @Column(name = "`option`")
+    private String option;
+
+    @NotNull
+    @Column(name = "price", nullable = false)
+    private Integer price;
+
+    @Builder
+    private MenuOption(String option, Integer price) {
+        this.option = option;
+        this.price = price;
+    }
+
+    public void setMenu(Menu menu) {
+        if (menu.equals(this.menu)) {
+            return;
+        }
+
+        if (this.menu != null) {
+            this.menu.getMenuOptions().remove(this);
+        }
+        this.menu = menu;
+        this.menu.getMenuOptions().add(this);
+    }
+}