Merge pull request #52 from PLADI-ALM/feat/PDS-71-getResourceBookedDate

[PDS-71/feat] 자원 월별 예약 현황 조회

src/main/java/com/example/pladialmserver/booking/repository/resourceBooking/ResourceBookingCustom.java

@@ -1,10 +1,15 @@
 package com.example.pladialmserver.booking.repository.resourceBooking;
 
 import com.example.pladialmserver.booking.dto.response.BookingRes;
+import com.example.pladialmserver.resource.entity.Resource;
 import com.example.pladialmserver.user.entity.User;
 import org.springframework.data.domain.Page;
 import org.springframework.data.domain.Pageable;
 
+import java.time.LocalDate;
+import java.util.List;
+
 public interface ResourceBookingCustom {
     Page<BookingRes> getBookingsByUser(User user, Pageable pageable);
+    List<String> getResourceBookedDate(Resource resource, LocalDate standardDate);
 }

src/main/java/com/example/pladialmserver/booking/repository/resourceBooking/ResourceBookingRepositoryImpl.java

@@ -2,13 +2,18 @@
 
 import com.example.pladialmserver.booking.dto.response.BookingRes;
 import com.example.pladialmserver.booking.entity.ResourceBooking;
+import com.example.pladialmserver.global.entity.BookingStatus;
+import com.example.pladialmserver.global.utils.DateTimeUtil;
+import com.example.pladialmserver.resource.entity.Resource;
 import com.example.pladialmserver.user.entity.User;
 import com.querydsl.jpa.impl.JPAQueryFactory;
 import lombok.RequiredArgsConstructor;
 import org.springframework.data.domain.Page;
 import org.springframework.data.domain.PageImpl;
 import org.springframework.data.domain.Pageable;
 
+import java.time.LocalDate;
+import java.util.ArrayList;
 import java.util.List;
 import java.util.stream.Collectors;
 
@@ -35,4 +40,33 @@ public Page<BookingRes> getBookingsByUser(User user, Pageable pageable) {
         int end = Math.min((start + pageable.getPageSize()), res.size());
         return new PageImpl<>(res.subList(start, end), pageable, res.size());
     }
+
+    // 자원 월별 예약 현황 조회
+    @Override
+    public List<String> getResourceBookedDate(Resource resource, LocalDate standardDate) {
+        // 해당 월의 첫 날
+        LocalDate startDate = standardDate.withDayOfMonth(1);
+        // 해당 월의 마지막 날
+        LocalDate endDate = standardDate.withDayOfMonth(standardDate.lengthOfMonth());
+
+        // 해당 월의 예약 현황 조회
+        List<ResourceBooking> bookings = jpaQueryFactory.selectFrom(resourceBooking)
+                .where(resourceBooking.resource.eq(resource)
+                        .and(resourceBooking.status.in(BookingStatus.WAITING, BookingStatus.BOOKED, BookingStatus.USING))
+                        .and((resourceBooking.startDate.between(startDate, endDate))
+                        .or(resourceBooking.endDate.between(startDate, endDate))))
+                .orderBy(resourceBooking.startDate.asc())
+                .fetch();
+
+        // 예약 시작 ~ 끝 날짜 반환
+        List<String> bookedDate = new ArrayList<>();
+        for (ResourceBooking b : bookings) {
+            List<String> date = b.getStartDate().datesUntil(b.getEndDate().plusDays(1))
+                    .map(DateTimeUtil::dateToString)
+                    .collect(Collectors.toList());
+            bookedDate.addAll(date);
+        }
+
+        return bookedDate;
+    }
 }

src/main/java/com/example/pladialmserver/global/utils/DateTimeUtil.java

@@ -33,4 +33,14 @@ public static String dateTimeToString(LocalDateTime localDateTime) {
     public static String dateTimeToStringNullable(LocalDateTime localDateTime) {
         return localDateTime == null ? null : dateTimeToString(localDateTime);
     }
+
+    // string(YYYY-MM) -> localDate
+    public static LocalDate stringToLocalDate(String stringDate) {
+        return LocalDate.parse(stringDate, DateTimeFormatter.ISO_DATE);
+    }
+
+    // string(YYYY-MM) -> localDate (해당 월의 첫 날)
+    public static LocalDate stringToFirstLocalDate(String stringDate) {
+        return stringToLocalDate(stringDate + "-01");
+    }
 }

src/main/java/com/example/pladialmserver/resource/controller/ResourceController.java

@@ -17,9 +17,11 @@
 import org.springframework.data.domain.Page;
 import org.springframework.data.domain.Pageable;
 import org.springframework.format.annotation.DateTimeFormat;
+import org.springframework.validation.annotation.Validated;
 import org.springframework.web.bind.annotation.*;
 
 import java.time.LocalDate;
+import java.util.List;
 
 import static com.example.pladialmserver.global.Constants.DATE_PATTERN;
 
@@ -73,8 +75,19 @@ public ResponseCustom<ResourceDetailRes> getResourceDetail(
 
 
     /**
-     * 자원 기간별 예약 현황 조회별
+     * 자원 월별 예약 현황 조회
      */
+    @Operation(summary = "자원 월별 예약 현황 조회", description = "월별로 자원 예약이 불가능한 날짜를 조회를 진행한다.")
+    @ApiResponses(value = {
+            @ApiResponse(responseCode = "200", description = "(S0001)요청에 성공했습니다."),
+            @ApiResponse(responseCode = "400", description = "(R0003)존재하지 않는 자원입니다.", content = @Content(schema = @Schema(implementation = ResponseCustom.class)))
+    })
+    @GetMapping("/{resourceId}/booking-state")
+    public ResponseCustom<List<String>> getResourceBookedDate(
+            @Parameter(description = "(Long) 자원 Id", example = "1") @PathVariable(name = "resourceId") Long resourceId,
+            @Parameter(description = "자원 예약 현황 조회 년도월 (YYYY-MM)",example = "2023-10") @RequestParam String month) {
+        return ResponseCustom.OK(resourceService.getResourceBookedDate(resourceId, month));
+    }
 
 
 

src/main/java/com/example/pladialmserver/resource/service/ResourceService.java

@@ -3,6 +3,7 @@
 
 import com.example.pladialmserver.global.exception.BaseException;
 import com.example.pladialmserver.global.exception.BaseResponseCode;
+import com.example.pladialmserver.global.utils.DateTimeUtil;
 import com.example.pladialmserver.resource.dto.response.ResourceDetailRes;
 import com.example.pladialmserver.resource.dto.response.ResourceRes;
 import com.example.pladialmserver.resource.entity.Resource;
@@ -63,11 +64,16 @@ public ResourceDetailRes getResourceDetail(Long resourceId) {
     }
 
 
-
     /**
      * 자원 기간별 예약 현황 조회
      */
-
+    public List<String> getResourceBookedDate(Long resourceId, String month) {
+        Resource resource = resourceRepository.findById(resourceId)
+                .orElseThrow(() -> new BaseException(BaseResponseCode.RESOURCE_NOT_FOUND));
+        // 예약 현황 조회할 월
+        LocalDate standardDate = DateTimeUtil.stringToFirstLocalDate(month);
+        return resourceBookingRepository.getResourceBookedDate(resource, standardDate);
+    }