roomescape-refactored/src/test/kotlin/roomescape/payment/business/PaymentServiceTest.kt

package roomescape.payment.business

import io.kotest.assertions.assertSoftly
import io.kotest.assertions.throwables.shouldThrow
import io.kotest.core.spec.style.FunSpec
import io.kotest.matchers.shouldBe
import io.kotest.matchers.types.shouldBeInstanceOf
import io.mockk.every
import io.mockk.mockk
import io.mockk.slot
import roomescape.payment.exception.PaymentErrorCode
import roomescape.payment.exception.PaymentException
import roomescape.payment.implement.PaymentFinder
import roomescape.payment.implement.PaymentWriter
import roomescape.payment.infrastructure.client.PaymentApproveResponse
import roomescape.payment.infrastructure.persistence.CanceledPaymentEntity
import roomescape.payment.web.PaymentCancelRequest
import roomescape.payment.web.PaymentCancelResponse
import roomescape.util.PaymentFixture
import roomescape.util.ReservationFixture
import java.time.LocalDate
import java.time.LocalTime
import java.time.OffsetDateTime
import java.time.ZoneOffset

class PaymentServiceTest : FunSpec({
    val paymentFinder: PaymentFinder = mockk()
    val paymentWriter: PaymentWriter = mockk()

    val paymentService = PaymentService(paymentFinder, paymentWriter)

    context("createPayment") {
        val approvedPaymentInfo = PaymentApproveResponse(
            paymentKey = "paymentKey",
            orderId = "orderId",
            totalAmount = 1000L,
            approvedAt = OffsetDateTime.now(),
        )
        val reservation = ReservationFixture.create(id = 1L)

        test("정상 응답") {
            every {
                paymentWriter.create(
                    paymentKey = approvedPaymentInfo.paymentKey,
                    orderId = approvedPaymentInfo.orderId,
                    totalAmount = approvedPaymentInfo.totalAmount,
                    approvedAt = approvedPaymentInfo.approvedAt,
                    reservation = reservation
                )
            } returns PaymentFixture.create(
                id = 1L,
                orderId = approvedPaymentInfo.orderId,
                paymentKey = approvedPaymentInfo.paymentKey,
                totalAmount = approvedPaymentInfo.totalAmount,
                approvedAt = approvedPaymentInfo.approvedAt,
                reservation = reservation
            )

            val response = paymentService.createPayment(approvedPaymentInfo, reservation)

            assertSoftly(response) {
                it.id shouldBe 1L
                it.paymentKey shouldBe approvedPaymentInfo.paymentKey
                it.reservationId shouldBe reservation.id
            }
        }
    }

    context("createCanceledPayment(canceledPaymentInfo)") {
        val canceledPaymentInfo = PaymentCancelResponse(
            cancelStatus = "normal",
            cancelReason = "고객 요청",
            cancelAmount = 1000L,
            canceledAt = OffsetDateTime.now(),
        )
        val approvedAt = OffsetDateTime.now()
        val paymentKey = "paymentKey"

        test("CanceledPaymentEntity를 응답") {
            every {
                paymentWriter.createCanceled(
                    cancelReason = canceledPaymentInfo.cancelReason,
                    cancelAmount = canceledPaymentInfo.cancelAmount,
                    canceledAt = canceledPaymentInfo.canceledAt,
                    approvedAt = approvedAt,
                    paymentKey = paymentKey
                )
            } returns PaymentFixture.createCanceled(
                id = 1L,
                paymentKey = paymentKey,
                cancelAmount = canceledPaymentInfo.cancelAmount
            )

            val response = paymentService.createCanceledPayment(canceledPaymentInfo, approvedAt, paymentKey)

            response.shouldBeInstanceOf<CanceledPaymentEntity>()
            response.paymentKey shouldBe paymentKey
        }
    }

    context("createCanceledPayment(reservationId)") {
        val reservationId = 1L

        test("취소 사유를 '예약 취소'로 하여 PaymentCancelRequest를 응답") {
            val payment = PaymentFixture.create(id = 1L, paymentKey = "paymentKey", totalAmount = 1000L)
            every {
                paymentFinder.findByReservationId(reservationId)
            } returns payment

            val cancelReasonSlot = slot<String>()

            every {
                paymentWriter.createCanceled(payment, capture(cancelReasonSlot), any())
            } returns PaymentFixture.createCanceled(
                id = 1L,
                paymentKey = payment.paymentKey,
                cancelAmount = payment.totalAmount
            )

            val response = paymentService.createCanceledPayment(reservationId)

            response.shouldBeInstanceOf<PaymentCancelRequest>()
            cancelReasonSlot.captured shouldBe "예약 취소"
        }

        test("결제 정보가 없으면 예외 응답") {
            every {
                paymentFinder.findByReservationId(reservationId)
            } throws PaymentException(PaymentErrorCode.PAYMENT_NOT_FOUND)

            shouldThrow<PaymentException> {
                paymentService.createCanceledPayment(reservationId)
            }.also {
                it.errorCode shouldBe PaymentErrorCode.PAYMENT_NOT_FOUND
            }
        }
    }

    context("updateCanceledTime") {
        val paymentKey = "paymentKey"
        val canceledAt = OffsetDateTime.of(LocalDate.of(2025, 8, 5), LocalTime.of(10, 0), ZoneOffset.UTC)

        test("정상 응답") {
            val canceled = PaymentFixture.createCanceled(id = 1L)
            every {
                paymentFinder.findCanceledByKey(paymentKey)
            } returns canceled

            paymentService.updateCanceledTime(paymentKey, canceledAt)

            canceled.canceledAt shouldBe canceledAt
        }

        test("결제 취소 정보가 없으면 예외 응답") {
            every {
                paymentFinder.findCanceledByKey(paymentKey)
            } throws PaymentException(PaymentErrorCode.PAYMENT_NOT_FOUND)

            shouldThrow<PaymentException> {
                paymentService.updateCanceledTime(paymentKey, canceledAt)
            }.also {
                it.errorCode shouldBe PaymentErrorCode.PAYMENT_NOT_FOUND
            }
        }
    }
})