[Feature] - 여행 계획 코드 리팩토링

backend/src/main/java/woowacourse/touroot/global/exception/GlobalExceptionHandler.java

@@ -2,6 +2,7 @@
 
 import lombok.extern.slf4j.Slf4j;
 import org.springframework.http.ResponseEntity;
+import org.springframework.web.bind.MethodArgumentNotValidException;
 import org.springframework.web.bind.annotation.ExceptionHandler;
 import org.springframework.web.bind.annotation.RestControllerAdvice;
 import woowacourse.touroot.global.exception.dto.ExceptionResponse;
@@ -13,8 +14,24 @@ public class GlobalExceptionHandler {
     @ExceptionHandler(BadRequestException.class)
     public ResponseEntity<ExceptionResponse> handleBadRequestException(BadRequestException exception) {
         log.info("BAD_REQUEST_EXCEPTION :: message = {}", exception.getMessage());
+
         ExceptionResponse data = new ExceptionResponse(exception.getMessage());
         return ResponseEntity.badRequest()
                 .body(data);
     }
+
+    @ExceptionHandler(MethodArgumentNotValidException.class)
+    public ResponseEntity<ExceptionResponse> handleMethodArgumentNotValidException(
+            MethodArgumentNotValidException exception
+    ) {
+        log.info("METHOD_ARGUMENT_NOT_VALID_EXCEPTION :: message = {}", exception.getMessage());
+
+        String message = exception.getBindingResult()
+                .getAllErrors()
+                .get(0)
+                .getDefaultMessage();
+        ExceptionResponse data = new ExceptionResponse(message);
+        return ResponseEntity.badRequest()
+                .body(data);
+    }
 }

backend/src/main/java/woowacourse/touroot/travelplan/dto/request/PlanDayCreateRequest.java

@@ -1,23 +1,23 @@
 package woowacourse.touroot.travelplan.dto.request;
 
 import io.swagger.v3.oas.annotations.media.Schema;
-import jakarta.validation.constraints.Min;
+import jakarta.validation.Valid;
 import jakarta.validation.constraints.NotNull;
+import jakarta.validation.constraints.Size;
 import woowacourse.touroot.travelplan.domain.TravelPlan;
 import woowacourse.touroot.travelplan.domain.TravelPlanDay;
 
 import java.util.List;
 
 public record PlanDayCreateRequest(
-        @Schema(description = "여행 계획 날짜", example = "1")
-        @NotNull(message = "날짜는 비어있을 수 없습니다.")
-        @Min(value = 0, message = "날짜는 1 이상이어야 합니다.")
-        int day,
         @Schema(description = "여행 장소 정보")
-        @NotNull(message = "여행 장소 정보는 비어있을 수 없습니다.") List<PlanPlaceCreateRequest> places
+        @Valid
+        @Size(min = 1, message = "여행 장소는 한 개 이상이어야 합니다.")
+        @NotNull(message = "여행 장소 정보는 비어있을 수 없습니다.")
+        List<PlanPlaceCreateRequest> places
 ) {
 
-    public TravelPlanDay toPlanDay(TravelPlan plan) {
-        return new TravelPlanDay(day, plan);
+    public TravelPlanDay toPlanDay(int order, TravelPlan plan) {
+        return new TravelPlanDay(order, plan);
     }
 }

backend/src/main/java/woowacourse/touroot/travelplan/dto/request/PlanPlaceCreateRequest.java

@@ -1,7 +1,7 @@
 package woowacourse.touroot.travelplan.dto.request;
 
 import io.swagger.v3.oas.annotations.media.Schema;
-import jakarta.validation.constraints.Min;
+import jakarta.validation.Valid;
 import jakarta.validation.constraints.NotBlank;
 import jakarta.validation.constraints.NotNull;
 import lombok.Builder;
@@ -15,14 +15,12 @@ public record PlanPlaceCreateRequest(
         @NotBlank(message = "장소명은 비어있을 수 없습니다.") String placeName,
         @Schema(description = "여행 장소 설명", example = "신나는 여행 장소")
         String description,
-        @Schema(description = "여행 장소 순서", example = "1")
-        @NotNull
-        @Min(value = 0, message = "순서는 1 이상이어야 합니다.")
-        int order,
-        @NotNull PlanLocationCreateRequest location
+        @Valid
+        @NotNull(message = "위치는 비어있을 수 없습니다.")
+        PlanLocationCreateRequest location
 ) {
 
-    public TravelPlanPlace toPlanPlace(TravelPlanDay day, Place place) {
+    public TravelPlanPlace toPlanPlace(int order, TravelPlanDay day, Place place) {
         return new TravelPlanPlace(description, order, day, place);
     }
 

backend/src/main/java/woowacourse/touroot/travelplan/dto/request/TravelPlanCreateRequest.java

@@ -1,8 +1,10 @@
 package woowacourse.touroot.travelplan.dto.request;
 
 import io.swagger.v3.oas.annotations.media.Schema;
+import jakarta.validation.Valid;
 import jakarta.validation.constraints.NotBlank;
 import jakarta.validation.constraints.NotNull;
+import jakarta.validation.constraints.Size;
 import lombok.Builder;
 import woowacourse.touroot.travelplan.domain.TravelPlan;
 
@@ -18,6 +20,8 @@ public record TravelPlanCreateRequest(
         @NotNull(message = "시작일은 비어있을 수 없습니다.")
         LocalDate startDate,
         @Schema(description = "여행 날짜 정보")
+        @Valid
+        @Size(min = 1, message = "여행 날짜는 하루 이상 있어야 합니다.")
         @NotNull(message = "여행 날짜 정보는 비어있을 수 없습니다.")
         List<PlanDayCreateRequest> days
 ) {

backend/src/main/java/woowacourse/touroot/travelplan/service/TravelPlanService.java

@@ -38,24 +38,24 @@ public TravelPlanCreateResponse createTravelPlan(TravelPlanCreateRequest request
         travelPlan.validateStartDate();
 
         TravelPlan savedTravelPlan = travelPlanRepository.save(travelPlan);
-        createPlanDay(request, savedTravelPlan);
+        createPlanDay(request.days(), savedTravelPlan);
 
         return new TravelPlanCreateResponse(savedTravelPlan.getId());
     }
 
-    private void createPlanDay(TravelPlanCreateRequest request, TravelPlan savedTravelPlan) {
-        for (PlanDayCreateRequest dayRequest : request.days()) {
-            // TODO: order는 배열 index로 변경
-            TravelPlanDay travelPlanDay = travelPlanDayRepository.save(dayRequest.toPlanDay(savedTravelPlan));
+    private void createPlanDay(List<PlanDayCreateRequest> request, TravelPlan savedTravelPlan) {
+        for (int order = 0; order < request.size(); order++) {
+            PlanDayCreateRequest dayRequest = request.get(order);
+            TravelPlanDay travelPlanDay = travelPlanDayRepository.save(dayRequest.toPlanDay(order, savedTravelPlan));
             createPlanPlace(dayRequest.places(), travelPlanDay);
         }
     }
 
     private void createPlanPlace(List<PlanPlaceCreateRequest> request, TravelPlanDay travelPlanDay) {
-        for (PlanPlaceCreateRequest planRequest : request) {
-            // TODO: order는 배열 index로 변경
+        for (int order = 0; order < request.size(); order++) {
+            PlanPlaceCreateRequest planRequest = request.get(order);
             Place place = getPlace(planRequest);
-            travelPlanPlaceRepository.save(planRequest.toPlanPlace(travelPlanDay, place));
+            travelPlanPlaceRepository.save(planRequest.toPlanPlace(order, travelPlanDay, place));
         }
     }
 

backend/src/test/java/woowacourse/touroot/travelplan/controller/TravelPlanControllerTest.java

@@ -49,10 +49,9 @@ void createTravelPlan() {
         PlanPlaceCreateRequest planPlaceCreateRequest = PlanPlaceCreateRequest.builder()
                 .placeName("잠실한강공원")
                 .description("신나는 여행 장소")
-                .order(0)
                 .location(locationRequest)
                 .build();
-        PlanDayCreateRequest planDayCreateRequest = new PlanDayCreateRequest(0, List.of(planPlaceCreateRequest));
+        PlanDayCreateRequest planDayCreateRequest = new PlanDayCreateRequest(List.of(planPlaceCreateRequest));
         TravelPlanCreateRequest request = TravelPlanCreateRequest.builder()
                 .title("신나는 한강 여행")
                 .startDate(LocalDate.MAX)
@@ -78,10 +77,9 @@ void createTravelPlanWithInvalidStartDate() {
         PlanPlaceCreateRequest planPlaceCreateRequest = PlanPlaceCreateRequest.builder()
                 .placeName("잠실한강공원")
                 .description("신나는 여행 장소")
-                .order(0)
                 .location(locationRequest)
                 .build();
-        PlanDayCreateRequest planDayCreateRequest = new PlanDayCreateRequest(0, List.of(planPlaceCreateRequest));
+        PlanDayCreateRequest planDayCreateRequest = new PlanDayCreateRequest(List.of(planPlaceCreateRequest));
         TravelPlanCreateRequest request = TravelPlanCreateRequest.builder()
                 .title("신나는 한강 여행")
                 .startDate(LocalDate.MIN)

backend/src/test/java/woowacourse/touroot/travelplan/service/TravelPlanServiceTest.java

@@ -50,10 +50,9 @@ void createTravelPlan() {
         PlanPlaceCreateRequest planPlaceCreateRequest = PlanPlaceCreateRequest.builder()
                 .placeName("잠실한강공원")
                 .description("신나는 여행 장소")
-                .order(0)
                 .location(locationRequest)
                 .build();
-        PlanDayCreateRequest planDayCreateRequest = new PlanDayCreateRequest(0, List.of(planPlaceCreateRequest));
+        PlanDayCreateRequest planDayCreateRequest = new PlanDayCreateRequest(List.of(planPlaceCreateRequest));
         TravelPlanCreateRequest request = TravelPlanCreateRequest.builder()
                 .title("신나는 한강 여행")
                 .startDate(LocalDate.MAX)
@@ -75,10 +74,9 @@ void createTravelPlanWithInvalidStartDate() {
         PlanPlaceCreateRequest planPlaceCreateRequest = PlanPlaceCreateRequest.builder()
                 .placeName("잠실한강공원")
                 .description("신나는 여행 장소")
-                .order(0)
                 .location(locationRequest)
                 .build();
-        PlanDayCreateRequest planDayCreateRequest = new PlanDayCreateRequest(0, List.of(planPlaceCreateRequest));
+        PlanDayCreateRequest planDayCreateRequest = new PlanDayCreateRequest(List.of(planPlaceCreateRequest));
         TravelPlanCreateRequest request = TravelPlanCreateRequest.builder()
                 .title("신나는 한강 여행")
                 .startDate(LocalDate.MIN)