package roomescape.reservation.business

import io.github.oshai.kotlinlogging.KotlinLogging
import org.springframework.stereotype.Service
import org.springframework.transaction.annotation.Transactional
import roomescape.reservation.implement.ReservationFinder
import roomescape.reservation.infrastructure.persistence.ReservationStatus
import roomescape.reservation.web.MyReservationRetrieveListResponse
import roomescape.reservation.web.ReservationRetrieveListResponse
import roomescape.reservation.web.toRetrieveListResponse
import java.time.LocalDate

private val log = KotlinLogging.logger {}

@Service
@Transactional(readOnly = true)
class ReservationQueryService(
    private val reservationFinder: ReservationFinder
) {
    fun findReservations(): ReservationRetrieveListResponse {
        log.info { "[ReservationService.findReservations] 시작" }

        return reservationFinder.findAllByStatuses(*ReservationStatus.confirmedStatus())
            .toRetrieveListResponse()
            .also { log.info { "[ReservationService.findReservations] ${it.reservations.size}개의 예약 조회 완료" } }
    }

    fun findAllWaiting(): ReservationRetrieveListResponse {
        log.info { "[ReservationService.findAllWaiting] 시작" }

        return reservationFinder.findAllByStatuses(ReservationStatus.WAITING)
            .toRetrieveListResponse()
            .also { log.info { "[ReservationService.findAllWaiting] ${it.reservations.size}개의 대기 조회 완료" } }
    }

    fun findReservationsByMemberId(memberId: Long): MyReservationRetrieveListResponse {
        log.info { "[ReservationService.findReservationsByMemberId] 시작: memberId=$memberId" }

        return reservationFinder.findAllByMemberId(memberId)
            .toRetrieveListResponse()
            .also { log.info { "[ReservationService.findReservationsByMemberId] ${it.reservations.size}개의 예약 조회 완료: memberId=$memberId" } }
    }

    fun searchReservations(
        themeId: Long?,
        memberId: Long?,
        startFrom: LocalDate?,
        endAt: LocalDate?,
    ): ReservationRetrieveListResponse {
        log.info { "[ReservationService.searchReservations] 시작: themeId=$themeId, memberId=$memberId, dateFrom=$startFrom, dateTo=$endAt" }

        return reservationFinder.searchReservations(themeId, memberId, startFrom, endAt)
            .toRetrieveListResponse()
            .also { log.info { "[ReservationService.searchReservations] ${it.reservations.size}개의 예약 조회 완료: themeId=$themeId, memberId=$memberId, dateFrom=$startFrom, dateTo=$endAt" } }
    }
}