package roomescape.common.entity

import jakarta.persistence.*
import org.springframework.data.annotation.CreatedDate
import org.springframework.data.annotation.LastModifiedDate
import org.springframework.data.domain.Persistable
import org.springframework.data.jpa.domain.support.AuditingEntityListener
import java.time.LocalDateTime
import kotlin.jvm.Transient

@MappedSuperclass
@EntityListeners(AuditingEntityListener::class)
abstract class BaseEntity(
    @Column(updatable = false)
    @CreatedDate
    var createdAt: LocalDateTime? = null,

    @LastModifiedDate
    var lastModifiedAt: LocalDateTime? = null,
) : Persistable<Long> {

    @Transient
    private var isNewEntity: Boolean = true

    @PostLoad
    @PostPersist
    fun markNotNew() {
        isNewEntity = false
    }

    override fun isNew(): Boolean = isNewEntity

    abstract override fun getId(): Long?

}