package roomescape.theme.util

import jakarta.persistence.EntityManager
import org.springframework.transaction.support.TransactionTemplate
import roomescape.member.infrastructure.persistence.MemberEntity
import roomescape.reservation.infrastructure.persistence.ReservationStatus
import roomescape.theme.infrastructure.persistence.ThemeEntity
import roomescape.time.infrastructure.persistence.TimeEntity
import roomescape.util.MemberFixture
import roomescape.util.ReservationFixture
import roomescape.util.ThemeFixture
import roomescape.util.TimeFixture
import java.time.LocalDate
import java.time.LocalTime

class TestThemeDataHelper(
    val entityManager: EntityManager,
    val transactionTemplate: TransactionTemplate?
) {
    /**
     * GET /themes/most-reserved-last-week API와 관련 Repository 테스트에 사용
     * @param name: 테마 이름
     * @param reservedCount: 이 테마가 예약된 횟수
     * @param date: reservedCount 개의 예약을 만들 때 사용할 날짜
     */
    fun createThemeWithReservations(name: String, reservedCount: Int, date: LocalDate): ThemeEntity =
        if (transactionTemplate == null) {
            createAndGet(name, reservedCount, date)
        } else {
            transactionTemplate.execute { createAndGet(name, reservedCount, date) }!!
        }


    fun createAndGet(name: String, reservedCount: Int, date: LocalDate): ThemeEntity {
        val themeEntity: ThemeEntity = ThemeFixture.create(name = name).also { entityManager.persist(it) }
        val member: MemberEntity = MemberFixture.create().also { entityManager.persist(it) }

        for (i in 1..reservedCount) {
            val time: TimeEntity = TimeFixture.create(
                startAt = LocalTime.now().plusMinutes(i.toLong())
            ).also { entityManager.persist(it) }

            ReservationFixture.create(
                date = date,
                theme = themeEntity,
                member = member,
                time = time,
                status = ReservationStatus.entries.random()
            ).also { entityManager.persist(it) }
        }

        entityManager.flush()
        entityManager.clear()

        return themeEntity
    }
}