src/main/kotlin/io/dico/parcels2/util/UUIDUtil.kt


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package io.dico.parcels2.util

import org.bukkit.Bukkit
import org.jetbrains.annotations.Contract
import java.nio.ByteBuffer
import java.util.*

@Suppress("UsePropertyAccessSyntax")
fun getPlayerName(uuid: UUID?, ifUnknown: String? = null): String {
    return uuid?.let { Bukkit.getOfflinePlayer(uuid)?.takeIf { it.isValid }?.name }
        ?: ifUnknown
        ?: ":unknown_name:"
}

@Contract("null -> null; !null -> !null", pure = true)
fun UUID?.toByteArray(): ByteArray? = this?.let {
    ByteBuffer.allocate(16).apply {
        putLong(mostSignificantBits)
        putLong(leastSignificantBits)
    }.array()
}

@Contract("null -> null; !null -> !null", pure = true)
fun ByteArray?.toUUID(): UUID? = this?.let {
    ByteBuffer.wrap(it).run { UUID(long, long) }
}