[EC-66] BE/feat 회의실 예약 내역 전체 조회 api (#52)

* [EC-66] chore: WIP

* [EC-66] feat: 캠퍼스 내 회의실 예약 내역 전체 조회 API 구현

Author: devyejin

api/src/main/java/org/example/educheck/domain/meetingroomreservation/controller/MeetingRoomReservationController.java

@@ -4,6 +4,7 @@
 import lombok.RequiredArgsConstructor;
 import lombok.extern.slf4j.Slf4j;
 import org.example.educheck.domain.meetingroomreservation.dto.request.MeetingRoomReservationRequestDto;
+import org.example.educheck.domain.meetingroomreservation.dto.response.CampusMeetingRoomsDto;
 import org.example.educheck.domain.meetingroomreservation.dto.response.MeetingRoomReservationResponseDto;
 import org.example.educheck.domain.meetingroomreservation.service.MeetingRoomReservationService;
 import org.example.educheck.global.common.dto.ApiResponse;
@@ -40,6 +41,20 @@ public ResponseEntity<ApiResponse<MeetingRoomReservationResponseDto>> getReserva
 
     }
 
+    @GetMapping
+    public ResponseEntity<ApiResponse<CampusMeetingRoomsDto>> getReservations(@AuthenticationPrincipal UserDetails userDetails,
+                                                                              @PathVariable Long campusId) {
+
+        return ResponseEntity.ok(
+                ApiResponse.ok(
+                        "회의실 예약 내역 조회 성공",
+                        "OK",
+                        meetingRoomReservationService.getMeetingRoomReservations(campusId)
+                )
+        );
+    }
+
+
     @DeleteMapping("/{meetingRoomReservationId}")
     public ResponseEntity<ApiResponse<Object>> cancelReservation(@AuthenticationPrincipal UserDetails userDetails,
                                                                  @PathVariable Long meetingRoomReservationId) {

api/src/main/java/org/example/educheck/domain/meetingroomreservation/dto/response/CampusMeetingRoomsDto.java

@@ -0,0 +1,17 @@
+package org.example.educheck.domain.meetingroomreservation.dto.response;
+
+
+import lombok.AllArgsConstructor;
+import lombok.Getter;
+
+import java.time.LocalDate;
+import java.util.List;
+
+@Getter
+@AllArgsConstructor
+public class CampusMeetingRoomsDto {
+
+    private Long campusId;
+    private LocalDate date;
+    private List<MeetingRoomDto> meetingRooms;
+}

api/src/main/java/org/example/educheck/domain/meetingroomreservation/dto/response/MeetingRoomDto.java

@@ -0,0 +1,14 @@
+package org.example.educheck.domain.meetingroomreservation.dto.response;
+
+import lombok.AllArgsConstructor;
+import lombok.Getter;
+
+import java.util.List;
+
+@Getter
+@AllArgsConstructor
+public class MeetingRoomDto {
+    private Long meetingRoomId;
+    private String meetingRoomName;
+    private List<ReservationDto> reservations;
+}

api/src/main/java/org/example/educheck/domain/meetingroomreservation/dto/response/MeetingRoomReservationResponseDto.java

@@ -1,12 +1,16 @@
 package org.example.educheck.domain.meetingroomreservation.dto.response;
 
+import lombok.AllArgsConstructor;
 import lombok.Builder;
 import lombok.Getter;
+import lombok.NoArgsConstructor;
 import org.example.educheck.domain.meetingroomreservation.entity.MeetingRoomReservation;
 import org.example.educheck.domain.meetingroomreservation.entity.ReservationStatus;
 
 import java.time.LocalDateTime;
 
+@NoArgsConstructor
+@AllArgsConstructor
 @Builder
 @Getter
 public class MeetingRoomReservationResponseDto {

api/src/main/java/org/example/educheck/domain/meetingroomreservation/dto/response/MeetingRoomReservationsProjections.java

@@ -0,0 +1,25 @@
+package org.example.educheck.domain.meetingroomreservation.dto.response;
+
+import java.time.LocalDateTime;
+
+
+public interface MeetingRoomReservationsProjections {
+    Long getMeetingRoomId();
+
+    String getMeetingRoomName();
+
+    Long getCampusId();
+
+    Long getMeetingRoomReservationId();
+
+    Long getMemberId();
+
+    String getMemberName();
+
+    String getReservationStatus();
+
+    LocalDateTime getStartTime();
+
+    LocalDateTime getEndTime();
+}
+

api/src/main/java/org/example/educheck/domain/meetingroomreservation/dto/response/ReservationDto.java

@@ -0,0 +1,17 @@
+package org.example.educheck.domain.meetingroomreservation.dto.response;
+
+import lombok.AllArgsConstructor;
+import lombok.Getter;
+
+import java.time.LocalDateTime;
+
+@Getter
+@AllArgsConstructor
+public class ReservationDto {
+
+    private Long meetingRoomReservationId;
+    private Long reserverId;
+    private String reserverName;
+    private LocalDateTime startDateTime;
+    private LocalDateTime endDateTime;
+}

api/src/main/java/org/example/educheck/domain/meetingroomreservation/repository/MeetingRoomReservationRepository.java

@@ -1,6 +1,7 @@
 package org.example.educheck.domain.meetingroomreservation.repository;
 
 import org.example.educheck.domain.meetingroom.entity.MeetingRoom;
+import org.example.educheck.domain.meetingroomreservation.dto.response.MeetingRoomReservationsProjections;
 import org.example.educheck.domain.meetingroomreservation.entity.MeetingRoomReservation;
 import org.example.educheck.domain.meetingroomreservation.entity.ReservationStatus;
 import org.springframework.data.jpa.repository.JpaRepository;
@@ -9,6 +10,7 @@
 
 import java.time.LocalDate;
 import java.time.LocalDateTime;
+import java.util.List;
 import java.util.Optional;
 
 public interface MeetingRoomReservationRepository extends JpaRepository<MeetingRoomReservation, Long> {
@@ -37,4 +39,28 @@ boolean existsOverlappingReservation(@Param("meetingRoom") MeetingRoom meetingRo
     Optional<MeetingRoomReservation> findByStatusAndById(@Param("reservationId") Long reservationId,
                                                          @Param("status") ReservationStatus status);
 
+    @Query(value = """
+                SELECT
+                    m.id AS meetingRoomId,
+                    m.name AS meetingRoomName,
+                    m.campus_id AS campusId,
+                    r.id AS meetingRoomReservationId,
+                    me.id AS memberId,
+                    me.name AS memberName,
+                    r.status AS reservationStatus,
+                    r.start_time AS startTime,
+                    r.end_time AS endTime
+                FROM meeting_room m
+                LEFT JOIN meeting_room_reservation r
+                    ON m.id = r.meeting_room_id
+                LEFT JOIN member me
+                    ON r.memeber_id = me.id
+                WHERE m.campus_id = :campusId
+                 AND (DATE(r.start_time) = DATE(NOW()) OR r.start_time IS NULL)
+                 AND (r.status = 'ACTIVE' OR r.status IS NULL)
+                ORDER BY r.start_time
+            """, nativeQuery = true)
+    List<MeetingRoomReservationsProjections> findByCampusId(@Param("campusId") Long campusId);
+
+
 }

api/src/main/java/org/example/educheck/domain/meetingroomreservation/service/MeetingRoomReservationService.java

@@ -1,10 +1,11 @@
 package org.example.educheck.domain.meetingroomreservation.service;
 
 import lombok.RequiredArgsConstructor;
+import lombok.extern.slf4j.Slf4j;
 import org.example.educheck.domain.meetingroom.entity.MeetingRoom;
 import org.example.educheck.domain.meetingroom.repository.MeetingRoomRepository;
 import org.example.educheck.domain.meetingroomreservation.dto.request.MeetingRoomReservationRequestDto;
-import org.example.educheck.domain.meetingroomreservation.dto.response.MeetingRoomReservationResponseDto;
+import org.example.educheck.domain.meetingroomreservation.dto.response.*;
 import org.example.educheck.domain.meetingroomreservation.entity.MeetingRoomReservation;
 import org.example.educheck.domain.meetingroomreservation.entity.ReservationStatus;
 import org.example.educheck.domain.meetingroomreservation.repository.MeetingRoomReservationRepository;
@@ -22,7 +23,12 @@
 import java.time.LocalDateTime;
 import java.time.LocalTime;
 import java.time.temporal.ChronoUnit;
+import java.util.ArrayList;
+import java.util.LinkedHashMap;
+import java.util.List;
+import java.util.Map;
 
+@Slf4j
 @Service
 @Transactional(readOnly = true)
 @RequiredArgsConstructor
@@ -123,4 +129,31 @@ public void cancelReservation(UserDetails userDetails, Long meetingRoomReservati
         meetingRoomReservation.cancelReservation();
         meetingRoomReservationRepository.save(meetingRoomReservation);
     }
+
+    public CampusMeetingRoomsDto getMeetingRoomReservations(Long campusId) {
+
+        List<MeetingRoomReservationsProjections> reservationsByCampus = meetingRoomReservationRepository.findByCampusId(campusId);
+
+        Map<Long, MeetingRoomDto> meetingRoomDtoMap = new LinkedHashMap<>();
+
+        for (MeetingRoomReservationsProjections reservation : reservationsByCampus) {
+            Long meetingRoomId = reservation.getMeetingRoomId();
+            String meetingRoomName = reservation.getMeetingRoomName();
+
+            meetingRoomDtoMap.putIfAbsent(meetingRoomId, new MeetingRoomDto(meetingRoomId, meetingRoomName, new ArrayList<>()));
+
+            if (reservation.getMeetingRoomReservationId() != null) {
+                meetingRoomDtoMap.get(meetingRoomId).getReservations().add(
+                        new ReservationDto(reservation.getMeetingRoomReservationId(),
+                                reservation.getMemberId(),
+                                reservation.getMemberName(),
+                                reservation.getStartTime(),
+                                reservation.getEndTime())
+                );
+            }
+
+        }
+
+        return new CampusMeetingRoomsDto(campusId, LocalDate.now(), new ArrayList<>(meetingRoomDtoMap.values()));
+    }
 }