refactor: 예약 API Request Body 및 서비스 로직 리팩토링

src/main/java/com/fc/shimpyo_be/domain/reservation/dto/CheckAvailableRoomsResultDto.java

@@ -1,8 +1,11 @@
 package com.fc.shimpyo_be.domain.reservation.dto;
 
+import lombok.Builder;
+
 import java.util.List;
 import java.util.Map;
 
+@Builder
 public record CheckAvailableRoomsResultDto(
     boolean isAvailable,
     List<Long> unavailableIds,

src/main/java/com/fc/shimpyo_be/domain/reservation/dto/request/PreoccupyRoomItemRequestDto.java

@@ -2,7 +2,9 @@
 
 import jakarta.validation.constraints.NotNull;
 import jakarta.validation.constraints.Pattern;
+import lombok.Builder;
 
+@Builder
 public record PreoccupyRoomItemRequestDto(
     @NotNull
     Long roomId,

src/main/java/com/fc/shimpyo_be/domain/reservation/dto/request/PreoccupyRoomsRequestDto.java

@@ -2,9 +2,11 @@
 
 import jakarta.validation.Valid;
 import jakarta.validation.constraints.Size;
+import lombok.Builder;
 
 import java.util.List;
 
+@Builder
 public record PreoccupyRoomsRequestDto(
 
     @Valid

src/main/java/com/fc/shimpyo_be/domain/reservation/dto/request/ReleaseRoomItemRequestDto.java

@@ -2,7 +2,9 @@
 
 import jakarta.validation.constraints.NotNull;
 import jakarta.validation.constraints.Pattern;
+import lombok.Builder;
 
+@Builder
 public record ReleaseRoomItemRequestDto(
     @NotNull
     Long roomId,

src/main/java/com/fc/shimpyo_be/domain/reservation/dto/request/ReleaseRoomsRequestDto.java

@@ -2,9 +2,11 @@
 
 import jakarta.validation.Valid;
 import jakarta.validation.constraints.Size;
+import lombok.Builder;
 
 import java.util.List;
 
+@Builder
 public record ReleaseRoomsRequestDto(
     @Valid
     @Size(min = 1, max = 3, message = "최소 1개, 최대 3개의 객실 요청 정보가 필요합니다.")

src/main/java/com/fc/shimpyo_be/domain/reservation/dto/request/SaveReservationRequestDto.java

@@ -6,9 +6,11 @@
 import jakarta.validation.constraints.Min;
 import jakarta.validation.constraints.NotNull;
 import jakarta.validation.constraints.Size;
+import lombok.Builder;
 
 import java.util.List;
 
+@Builder
 public record SaveReservationRequestDto(
     @Valid
     @Size(min = 1, max = 3, message = "최소 1개, 최대 3개의 객실 예약이 가능합니다.")

src/main/java/com/fc/shimpyo_be/domain/reservation/dto/response/ReservationInfoResponseDto.java

@@ -1,19 +1,24 @@
 package com.fc.shimpyo_be.domain.reservation.dto.response;
 
+import lombok.Builder;
+
+@Builder
 public record ReservationInfoResponseDto(
     Long reservationId,
     Long reservationProductId,
     Long productId,
     String productName,
     String productImageUrl,
     String productAddress,
+    String productDetailAddress,
     Long roomId,
     String roomName,
     String startDate,
     String endDate,
     String checkIn,
     String checkOut,
     Integer price,
-    String payMethod
+    String payMethod,
+    String createdAt
 ) {
 }

src/main/java/com/fc/shimpyo_be/domain/reservation/dto/response/SaveReservationResponseDto.java

@@ -1,25 +1,17 @@
 package com.fc.shimpyo_be.domain.reservation.dto.response;
 
-import com.fc.shimpyo_be.domain.reservation.dto.request.SaveReservationRequestDto;
 import com.fc.shimpyo_be.domain.reservation.entity.PayMethod;
 import com.fc.shimpyo_be.domain.reservationproduct.dto.response.ReservationProductResponseDto;
+import lombok.Builder;
 
 import java.util.List;
 
+@Builder
 public record SaveReservationResponseDto(
     Long reservationId,
     List<ReservationProductResponseDto> reservationProducts,
     PayMethod payMethod,
-    Integer totalPrice
+    Integer totalPrice,
+    String createdAt
 ) {
-    public SaveReservationResponseDto(Long reservationId, SaveReservationRequestDto requestDto) {
-        this(
-            reservationId,
-            requestDto.reservationProducts()
-                .stream()
-                .map(ReservationProductResponseDto::new).toList(),
-            requestDto.payMethod(),
-            requestDto.totalPrice()
-        );
-    }
 }

src/main/java/com/fc/shimpyo_be/domain/reservation/dto/response/ValidationResultResponseDto.java

@@ -1,7 +1,10 @@
 package com.fc.shimpyo_be.domain.reservation.dto.response;
 
+import lombok.Builder;
+
 import java.util.List;
 
+@Builder
 public record ValidationResultResponseDto(
     boolean isAvailable,
     List<Long> unavailableIds

src/main/java/com/fc/shimpyo_be/domain/reservation/service/ReservationService.java

@@ -3,7 +3,6 @@
 import com.fc.shimpyo_be.domain.member.entity.Member;
 import com.fc.shimpyo_be.domain.member.exception.MemberNotFoundException;
 import com.fc.shimpyo_be.domain.member.repository.MemberRepository;
-import com.fc.shimpyo_be.domain.product.entity.Product;
 import com.fc.shimpyo_be.domain.product.exception.RoomNotFoundException;
 import com.fc.shimpyo_be.domain.reservation.dto.request.ReleaseRoomItemRequestDto;
 import com.fc.shimpyo_be.domain.reservation.dto.request.ReleaseRoomsRequestDto;
@@ -14,6 +13,7 @@
 import com.fc.shimpyo_be.domain.reservation.entity.Reservation;
 import com.fc.shimpyo_be.domain.reservation.exception.InvalidRequestException;
 import com.fc.shimpyo_be.domain.reservation.repository.ReservationRepository;
+import com.fc.shimpyo_be.domain.reservation.util.ReservationMapper;
 import com.fc.shimpyo_be.domain.reservationproduct.dto.request.ReservationProductRequestDto;
 import com.fc.shimpyo_be.domain.reservationproduct.entity.ReservationProduct;
 import com.fc.shimpyo_be.domain.reservationproduct.repository.ReservationProductRepository;
@@ -32,7 +32,6 @@
 import org.springframework.util.ObjectUtils;
 
 import java.time.LocalDate;
-import java.time.format.DateTimeFormatter;
 import java.util.ArrayList;
 import java.util.LinkedList;
 import java.util.List;
@@ -77,52 +76,27 @@ public SaveReservationResponseDto saveReservation(Long memberId, SaveReservation
         }
 
         // 예약 저장
-        Long reservationId
-            = reservationRepository.save(
-                Reservation.builder()
-                    .member(member)
-                    .reservationProducts(reservationProducts)
-                    .payMethod(request.payMethod())
-                    .totalPrice(request.totalPrice())
-                    .build()).getId();
-
-        return new SaveReservationResponseDto(reservationId, request);
+        Reservation reservation = reservationRepository.save(
+            Reservation.builder()
+                .member(member)
+                .reservationProducts(reservationProducts)
+                .payMethod(request.payMethod())
+                .totalPrice(request.totalPrice())
+                .build()
+        );
+
+        return ReservationMapper.from(reservation);
     }
 
     @Transactional(readOnly = true)
     public Page<ReservationInfoResponseDto> getReservationInfoList(Long memberId, Pageable pageable) {
         log.info("{} ::: {}", getClass().getSimpleName(), "getReservationInfoList");
 
         List<Long> reservationIds = reservationRepository.findIdsByMemberId(memberId);
-        DateTimeFormatter dateFormatter = DateTimeFormatter.ofPattern("yyyy-MM-dd");
-        DateTimeFormatter timeFormatter = DateTimeFormatter.ofPattern("HH:mm");
 
         return reservationProductRepository
             .findAllInReservationIds(reservationIds, pageable)
-            .map(
-                reservationProduct -> {
-                    Reservation reservation = reservationProduct.getReservation();
-                    Room room = reservationProduct.getRoom();
-                    Product product = room.getProduct();
-
-                    return new ReservationInfoResponseDto(
-                        reservation.getId(),
-                        reservationProduct.getId(),
-                        product.getId(),
-                        product.getName(),
-                        product.getThumbnail(),
-                        product.getAddress().getAddress() + " " + product.getAddress().getDetailAddress(),
-                        room.getId(),
-                        room.getName(),
-                        dateFormatter.format(reservationProduct.getStartDate()),
-                        dateFormatter.format(reservationProduct.getEndDate()),
-                        timeFormatter.format(room.getCheckIn()),
-                        timeFormatter.format(room.getCheckOut()),
-                        reservationProduct.getPrice(),
-                        reservation.getPayMethod().name()
-                    );
-                }
-            );
+            .map(ReservationMapper::from);
     }
 
     public ValidationResultResponseDto validate(Long memberId, List<ReservationProductRequestDto> reservationProducts) {
@@ -137,20 +111,20 @@ public ValidationResultResponseDto validate(Long memberId, List<ReservationProdu
             LocalDate endDate = DateTimeUtil.toLocalDate(reservationProduct.endDate());
 
             List<String> keys = new LinkedList<>();
-            while(targetDate.isBefore(endDate)) {
+            while (targetDate.isBefore(endDate)) {
                 keys.add(String.format(REDIS_ROOM_KEY_FORMAT, reservationProduct.roomId(), targetDate));
                 targetDate = targetDate.plusDays(1);
             }
 
             List<Object> values = opsForValue.multiGet(keys);
             String memberIdValue = String.valueOf(memberId);
 
-            if(ObjectUtils.isEmpty(values)) {
+            if (ObjectUtils.isEmpty(values)) {
                 throw new InvalidRequestException(ErrorCode.INVALID_RESERVATION_REQUEST);
             }
 
             for (Object value : values) {
-                if(!memberIdValue.equals(value)) {
+                if (!memberIdValue.equals(value)) {
                     isValid = false;
                     invalidRoomIds.add(Long.valueOf((String) value));
                     break;

src/main/java/com/fc/shimpyo_be/domain/reservation/util/ReservationMapper.java

@@ -0,0 +1,75 @@
+package com.fc.shimpyo_be.domain.reservation.util;
+
+import com.fc.shimpyo_be.domain.product.entity.Product;
+import com.fc.shimpyo_be.domain.reservation.dto.response.ReservationInfoResponseDto;
+import com.fc.shimpyo_be.domain.reservation.dto.response.SaveReservationResponseDto;
+import com.fc.shimpyo_be.domain.reservation.entity.Reservation;
+import com.fc.shimpyo_be.domain.reservationproduct.dto.response.ReservationProductResponseDto;
+import com.fc.shimpyo_be.domain.reservationproduct.entity.ReservationProduct;
+import com.fc.shimpyo_be.domain.room.entity.Room;
+import com.fc.shimpyo_be.global.util.DateTimeUtil;
+
+import java.util.ArrayList;
+import java.util.List;
+
+public class ReservationMapper {
+
+    public static ReservationInfoResponseDto from(ReservationProduct reservationProduct) {
+        Reservation reservation = reservationProduct.getReservation();
+        Room room = reservationProduct.getRoom();
+        Product product = room.getProduct();
+
+        return ReservationInfoResponseDto.builder()
+            .reservationId(reservation.getId())
+            .reservationProductId(reservationProduct.getId())
+            .productId(product.getId())
+            .productName(product.getName())
+            .productImageUrl(product.getThumbnail())
+            .productAddress(product.getAddress().getAddress())
+            .productDetailAddress(product.getAddress().getDetailAddress())
+            .roomId(room.getId())
+            .roomName(room.getName())
+            .startDate(DateTimeUtil.toString(reservationProduct.getStartDate()))
+            .endDate(DateTimeUtil.toString(reservationProduct.getEndDate()))
+            .checkIn(DateTimeUtil.toString(room.getCheckIn()))
+            .checkOut(DateTimeUtil.toString(room.getCheckOut()))
+            .price(reservationProduct.getPrice())
+            .payMethod(reservation.getPayMethod().name())
+            .createdAt(DateTimeUtil.toString(reservation.getCreatedAt()))
+            .build();
+    }
+
+    public static SaveReservationResponseDto from(Reservation reservation) {
+        List<ReservationProductResponseDto> reservationProductDtos = new ArrayList<>();
+        for (ReservationProduct reservationProduct : reservation.getReservationProducts()) {
+
+            Room room = reservationProduct.getRoom();
+            Product product = room.getProduct();
+
+            reservationProductDtos.add(
+                ReservationProductResponseDto.builder()
+                    .productName(product.getName())
+                    .roomId(room.getId())
+                    .roomName(room.getName())
+                    .standard(room.getStandard())
+                    .capacity(room.getCapacity())
+                    .startDate(DateTimeUtil.toString(reservationProduct.getStartDate()))
+                    .endDate(DateTimeUtil.toString(reservationProduct.getEndDate()))
+                    .checkIn(DateTimeUtil.toString(room.getCheckIn()))
+                    .checkOut(DateTimeUtil.toString(room.getCheckOut()))
+                    .visitorName(reservationProduct.getVisitorName())
+                    .visitorPhone(reservationProduct.getVisitorPhone())
+                    .price(reservationProduct.getPrice())
+                    .build()
+            );
+        }
+
+        return SaveReservationResponseDto.builder()
+            .reservationId(reservation.getId())
+            .reservationProducts(reservationProductDtos)
+            .payMethod(reservation.getPayMethod())
+            .totalPrice(reservation.getTotalPrice())
+            .createdAt(DateTimeUtil.toString(reservation.getCreatedAt()))
+            .build();
+    }
+}

src/main/java/com/fc/shimpyo_be/domain/reservationproduct/dto/request/ReservationProductRequestDto.java

@@ -1,29 +1,18 @@
 package com.fc.shimpyo_be.domain.reservationproduct.dto.request;
 
 import jakarta.validation.constraints.Min;
-import jakarta.validation.constraints.NotBlank;
 import jakarta.validation.constraints.NotNull;
 import jakarta.validation.constraints.Pattern;
+import lombok.Builder;
 
+@Builder
 public record ReservationProductRequestDto(
     @NotNull
     Long roomId,
-    @NotBlank
-    String productName,
-    @NotBlank
-    String roomName,
-    @NotNull
-    Integer standard,
-    @NotNull
-    Integer max,
     @Pattern(regexp = "^\\d{4}-\\d{2}-\\d{2}$", message = "올바른 날짜 형식이 아닙니다.(yyyy-MM-dd 형식으로 입력하세요.)")
     String startDate,
     @Pattern(regexp = "^\\d{4}-\\d{2}-\\d{2}$", message = "올바른 날짜 형식이 아닙니다.(yyyy-MM-dd 형식으로 입력하세요.)")
     String endDate,
-    @Pattern(regexp = "^\\d{2}:\\d{2}$", message = "올바른 시간 형식이 아닙니다.(HH:mm 형식으로 입력하세요.)")
-    String checkIn,
-    @Pattern(regexp = "^\\d{2}:\\d{2}$", message = "올바른 시간 형식이 아닙니다.(HH:mm 형식으로 입력하세요.)")
-    String checkOut,
     String visitorName,
     String visitorPhone,
     @Min(value = 0, message = "객실 이용 금액은 음수일 수 없습니다.")

src/main/java/com/fc/shimpyo_be/domain/reservationproduct/dto/response/ReservationProductResponseDto.java

@@ -1,13 +1,14 @@
 package com.fc.shimpyo_be.domain.reservationproduct.dto.response;
 
-import com.fc.shimpyo_be.domain.reservationproduct.dto.request.ReservationProductRequestDto;
+import lombok.Builder;
 
+@Builder
 public record ReservationProductResponseDto(
-    Long roomId,
     String productName,
+    Long roomId,
     String roomName,
     Integer standard,
-    Integer max,
+    Integer capacity,
     String startDate,
     String endDate,
     String checkIn,
@@ -16,20 +17,4 @@ public record ReservationProductResponseDto(
     String visitorPhone,
     Integer price
 ) {
-    public ReservationProductResponseDto(ReservationProductRequestDto requestDto) {
-        this(
-            requestDto.roomId(),
-            requestDto.productName(),
-            requestDto.roomName(),
-            requestDto.standard(),
-            requestDto.max(),
-            requestDto.startDate(),
-            requestDto.endDate(),
-            requestDto.checkIn(),
-            requestDto.checkOut(),
-            requestDto.visitorName(),
-            requestDto.visitorPhone(),
-            requestDto.price()
-        );
-    }
 }