package roomescape.common.util

import io.github.oshai.kotlinlogging.KLogger
import io.github.oshai.kotlinlogging.KotlinLogging
import org.springframework.stereotype.Component
import org.springframework.transaction.PlatformTransactionManager
import org.springframework.transaction.TransactionDefinition
import org.springframework.transaction.support.TransactionTemplate
import roomescape.common.exception.CommonErrorCode
import roomescape.common.exception.RoomescapeException

private val log: KLogger = KotlinLogging.logger {}

@Component
class TransactionExecutionUtil(
    private val transactionManager: PlatformTransactionManager
) {

    fun <T> withNewTransaction(isReadOnly: Boolean, action: () -> T): T {
        val transactionTemplate = TransactionTemplate(transactionManager).apply {
            this.isReadOnly = isReadOnly
            this.propagationBehavior = TransactionDefinition.PROPAGATION_REQUIRES_NEW
        }

        return transactionTemplate.execute { action() }
            ?: run {
                log.error { "[TransactionExecutionUtil.withNewTransaction] 트랜잭션 작업 중 예상치 못한 null 반환 " }
                throw RoomescapeException(CommonErrorCode.UNEXPECTED_SERVER_ERROR)
            }
    }
}