package roomescape.payment.business

import com.github.f4b6a3.tsid.TsidFactory
import io.github.oshai.kotlinlogging.KLogger
import io.github.oshai.kotlinlogging.KotlinLogging
import org.springframework.stereotype.Component
import roomescape.common.config.next
import roomescape.payment.exception.PaymentErrorCode
import roomescape.payment.exception.PaymentException
import roomescape.payment.infrastructure.client.*
import roomescape.payment.infrastructure.common.PaymentMethod
import roomescape.payment.infrastructure.common.PaymentType
import roomescape.payment.infrastructure.persistence.CanceledPaymentEntity
import roomescape.payment.infrastructure.persistence.CanceledPaymentRepository
import roomescape.payment.infrastructure.persistence.PaymentDetailEntity
import roomescape.payment.infrastructure.persistence.PaymentDetailRepository
import roomescape.payment.infrastructure.persistence.PaymentEntity
import roomescape.payment.infrastructure.persistence.PaymentRepository
import java.time.LocalDateTime

private val log: KLogger = KotlinLogging.logger {}

@Component
class PaymentWriter(
    private val paymentRepository: PaymentRepository,
    private val paymentDetailRepository: PaymentDetailRepository,
    private val canceledPaymentRepository: CanceledPaymentRepository,
    private val tsidFactory: TsidFactory,
) {

    fun createPayment(
        reservationId: Long,
        orderId: String,
        paymentType: PaymentType,
        paymentClientConfirmResponse: PaymentClientConfirmResponse
    ): PaymentEntity {
        log.info { "[PaymentWriterV2.createPayment] 결제 승인 및 결제 정보 저장 시작: reservationId=${reservationId}, paymentKey=${paymentClientConfirmResponse.paymentKey}" }

        return paymentClientConfirmResponse.toEntity(
            id = tsidFactory.next(), reservationId, orderId, paymentType
        ).also {
            paymentRepository.save(it)
            log.info { "[PaymentWriterV2.createPayment] 결제 승인 및 결제 정보 저장 완료: reservationId=${reservationId}, payment.id=${it.id}" }
        }
    }

    fun createDetail(
        paymentResponse: PaymentClientConfirmResponse,
        paymentId: Long,
    ): PaymentDetailEntity {
        val method: PaymentMethod = paymentResponse.method
        val id = tsidFactory.next()

        if (method == PaymentMethod.TRANSFER) {
            return paymentDetailRepository.save(paymentResponse.toTransferDetailEntity(id, paymentId))
        }
        if (method == PaymentMethod.EASY_PAY && paymentResponse.card == null) {
            return paymentDetailRepository.save(paymentResponse.toEasypayPrepaidDetailEntity(id, paymentId))
        }
        if (paymentResponse.card != null) {
            return paymentDetailRepository.save(paymentResponse.toCardDetailEntity(id, paymentId))
        }
        throw PaymentException(PaymentErrorCode.NOT_SUPPORTED_PAYMENT_TYPE)
    }

    fun cancel(
        memberId: Long,
        payment: PaymentEntity,
        requestedAt: LocalDateTime,
        cancelResponse: PaymentClientCancelResponse
    ) {
        log.debug { "[PaymentWriterV2.cancelPayment] 결제 취소 정보 저장 시작: payment.id=${payment.id}" }

        val canceledPayment: CanceledPaymentEntity = cancelResponse.cancels.toEntity(
            id = tsidFactory.next(),
            paymentId = payment.id,
            cancelRequestedAt = requestedAt,
            canceledBy = memberId
        )

        run {
            canceledPaymentRepository.save(canceledPayment)
            paymentRepository.save(payment.apply { this.cancel() })
        }.also {
            log.debug { "[PaymentWriterV2.cancelPayment] 결제 취소 정보 저장 완료: payment.id=${payment.id}" }
        }
    }
}