package roomescape.reservation.business

import io.kotest.assertions.throwables.shouldThrow
import io.kotest.core.spec.style.FunSpec
import io.kotest.matchers.shouldBe
import io.mockk.every
import io.mockk.mockk
import org.springframework.data.repository.findByIdOrNull
import org.springframework.http.HttpStatus
import roomescape.common.exception.ErrorType
import roomescape.common.exception.RoomescapeException
import roomescape.reservation.infrastructure.persistence.ReservationRepository
import roomescape.reservation.infrastructure.persistence.ReservationTimeRepository
import roomescape.reservation.web.ReservationTimeRequest
import roomescape.util.ReservationTimeFixture
import java.time.LocalTime

class ReservationTimeServiceTest : FunSpec({
    val reservationTimeRepository: ReservationTimeRepository = mockk()
    val reservationRepository: ReservationRepository = mockk()

    val reservationTimeService = ReservationTimeService(
            reservationTimeRepository = reservationTimeRepository,
            reservationRepository = reservationRepository
    )

    context("findTimeById") {
        test("시간을 찾을 수 없으면 400 에러를 던진다.") {
            val id = 1L

            // Mocking the behavior of reservationTimeRepository.findByIdOrNull
            every { reservationTimeRepository.findByIdOrNull(id) } returns null

            shouldThrow<RoomescapeException> {
                reservationTimeService.findTimeById(id)
            }.apply {
                errorType shouldBe ErrorType.RESERVATION_TIME_NOT_FOUND
                httpStatus shouldBe HttpStatus.BAD_REQUEST
            }
        }
    }

    context("addTime") {
        test("중복된 시간이 있으면 409 에러를 던진다.") {
            val request = ReservationTimeRequest(startAt = LocalTime.of(10, 0))

            // Mocking the behavior of reservationTimeRepository.findByStartAt
            every { reservationTimeRepository.existsByStartAt(request.startAt) } returns true

            shouldThrow<RoomescapeException> {
                reservationTimeService.addTime(request)
            }.apply {
                errorType shouldBe ErrorType.TIME_DUPLICATED
                httpStatus shouldBe HttpStatus.CONFLICT
            }
        }
    }

    context("removeTimeById") {
        test("시간을 찾을 수 없으면 400 에러를 던진다.") {
            val id = 1L

            // Mocking the behavior of reservationTimeRepository.findByIdOrNull
            every { reservationTimeRepository.findByIdOrNull(id) } returns null

            shouldThrow<RoomescapeException> {
                reservationTimeService.removeTimeById(id)
            }.apply {
                errorType shouldBe ErrorType.RESERVATION_TIME_NOT_FOUND
                httpStatus shouldBe HttpStatus.BAD_REQUEST
            }
        }

        test("예약이 있는 시간이면 409 에러를 던진다.") {
            val id = 1L
            val reservationTime = ReservationTimeFixture.create()

            // Mocking the behavior of reservationTimeRepository.findByIdOrNull
            every { reservationTimeRepository.findByIdOrNull(id) } returns reservationTime

            // Mocking the behavior of reservationRepository.findByReservationTime
            every { reservationRepository.findByReservationTime(reservationTime) } returns listOf(mockk())

            shouldThrow<RoomescapeException> {
                reservationTimeService.removeTimeById(id)
            }.apply {
                errorType shouldBe ErrorType.TIME_IS_USED_CONFLICT
                httpStatus shouldBe HttpStatus.CONFLICT
            }
        }
    }
})