feat : 주문 내역 상세 조회 api 추가

src/main/java/com/jangburich/domain/store/controller/StoreController.java

@@ -26,6 +26,7 @@
 import com.jangburich.domain.store.domain.StoreUpdateRequestDTO;
 import com.jangburich.domain.store.dto.condition.StoreSearchCondition;
 import com.jangburich.domain.store.dto.condition.StoreSearchConditionWithType;
+import com.jangburich.domain.store.dto.response.OrdersDetailResponse;
 import com.jangburich.domain.store.dto.response.OrdersGetResponse;
 import com.jangburich.domain.store.dto.response.PaymentGroupDetailResponse;
 import com.jangburich.domain.store.dto.response.SearchStoresResponse;
@@ -122,4 +123,12 @@ public ResponseCustom<List<OrdersGetResponse>> getOrders(Authentication authenti
 			AuthenticationParser.parseUserId(authentication));
 		return ResponseCustom.OK(ordersLast);
 	}
+
+	@Operation(summary = "주문 상세 조회", description = "가게에 있는 주문을 상세 조회합니다")
+	@GetMapping("/orders/{ordersId}")
+	public ResponseCustom<OrdersDetailResponse> getOrders(Authentication authentication, @RequestParam Long orderId) {
+		return ResponseCustom.OK(
+			storeService.getOrderDetails(AuthenticationParser.parseUserId(authentication), orderId));
+	}
+
 }

src/main/java/com/jangburich/domain/store/dto/response/OrdersDetailResponse.java

@@ -0,0 +1,30 @@
+package com.jangburich.domain.store.dto.response;
+
+import java.time.LocalDateTime;
+import java.util.List;
+
+import lombok.Getter;
+import lombok.RequiredArgsConstructor;
+import lombok.Setter;
+
+@Getter
+@Setter
+@RequiredArgsConstructor
+public class OrdersDetailResponse {
+	private Long id;
+	private String teamName;
+	private String teamUserName;
+	private List<Menu> menus;
+	private LocalDateTime dateTime;
+	private Integer amount;
+	private Integer totalPrice;
+	private Integer discountPrice;
+
+	@Getter
+	@Setter
+	public static class Menu {
+		private String menuName;
+		private Integer amount;
+	}
+}
+

src/main/java/com/jangburich/domain/store/exception/OrdersNotFoundException.java

@@ -0,0 +1,7 @@
+package com.jangburich.domain.store.exception;
+
+public class OrdersNotFoundException extends RuntimeException {
+	public OrdersNotFoundException() {
+		super("해당 가게를 찾을 수 없습니다.");
+	}
+}

src/main/java/com/jangburich/domain/store/service/StoreService.java

@@ -33,9 +33,11 @@
 import com.jangburich.domain.store.domain.StoreUpdateRequestDTO;
 import com.jangburich.domain.store.dto.condition.StoreSearchCondition;
 import com.jangburich.domain.store.dto.condition.StoreSearchConditionWithType;
+import com.jangburich.domain.store.dto.response.OrdersDetailResponse;
 import com.jangburich.domain.store.dto.response.OrdersGetResponse;
 import com.jangburich.domain.store.dto.response.PaymentGroupDetailResponse;
 import com.jangburich.domain.store.dto.response.SearchStoresResponse;
+import com.jangburich.domain.store.exception.OrdersNotFoundException;
 import com.jangburich.domain.store.repository.StoreRepository;
 import com.jangburich.domain.store.repository.StoreTeamRepository;
 import com.jangburich.domain.team.domain.Team;
@@ -271,17 +273,51 @@ public List<OrdersGetResponse> getOrdersLast(String userId) {
 			OrdersGetResponse newOrdersGetResponse = new OrdersGetResponse();
 			List<Cart> carts = cartRepository.findAllByOrders(orders);
 			newOrdersGetResponse.setId(orders.getId());
-			newOrdersGetResponse.setMenuNames(carts.size() == 1 ? carts.get(0).getMenu().getName() :carts.get(0).getMenu().getName() + "외 " + (carts.size() - 1) + "개");
+			newOrdersGetResponse.setMenuNames(carts.size() == 1 ? carts.get(0).getMenu().getName() :
+				carts.get(0).getMenu().getName() + "외 " + (carts.size() - 1) + "개");
 			newOrdersGetResponse.setCount(carts.size());
 			newOrdersGetResponse.setDate(orders.getUpdatedAt());
 			Integer price = 0;
 			for (Cart cart : carts) {
-				price += cart.getMenu().getPrice();
+				price += (cart.getMenu().getPrice() * cart.getQuantity());
 			}
 			newOrdersGetResponse.setPrice(price);
 			ordersGetResponses.add(newOrdersGetResponse);
 		}
 
 		return ordersGetResponses;
 	}
+
+	public OrdersDetailResponse getOrderDetails(String userId, Long orderId) {
+		OrdersDetailResponse ordersDetailResponse = new OrdersDetailResponse();
+
+		userRepository.findByProviderId(userId)
+			.orElseThrow(() -> new DefaultNullPointerException(ErrorCode.INVALID_AUTHENTICATION));
+
+		Orders orders = ordersRepository.findById(orderId).orElseThrow(OrdersNotFoundException::new);
+
+		ordersDetailResponse.setId(orders.getId());
+		ordersDetailResponse.setTeamName(orders.getTeam().getName());
+		ordersDetailResponse.setTeamUserName(orders.getUser().getName());
+
+		List<Cart> carts = cartRepository.findAllByOrders(orders);
+		List<OrdersDetailResponse.Menu> menus = new ArrayList<>();
+		Integer amount = 0;
+		Integer price = 0;
+		for (Cart cart : carts) {
+			OrdersDetailResponse.Menu menu = new OrdersDetailResponse.Menu();
+			menu.setMenuName(cart.getMenu().getName());
+			menu.setAmount(cart.getQuantity());
+			menus.add(menu);
+			amount += cart.getQuantity();
+			price += (cart.getQuantity() * cart.getMenu().getPrice());
+		}
+		ordersDetailResponse.setMenus(menus);
+		ordersDetailResponse.setDateTime(orders.getUpdatedAt());
+		ordersDetailResponse.setAmount(amount);
+		ordersDetailResponse.setTotalPrice(price);
+		ordersDetailResponse.setDiscountPrice(0);
+
+		return ordersDetailResponse;
+	}
 }