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package moe.nea.firmament.features.inventory.storageoverlay
import io.ktor.util.decodeBase64Bytes
import io.ktor.util.encodeBase64
import java.io.ByteArrayInputStream
import java.io.ByteArrayOutputStream
import kotlinx.serialization.KSerializer
import kotlinx.serialization.Serializable
import kotlinx.serialization.descriptors.PrimitiveKind
import kotlinx.serialization.descriptors.PrimitiveSerialDescriptor
import kotlinx.serialization.descriptors.SerialDescriptor
import kotlinx.serialization.encoding.Decoder
import kotlinx.serialization.encoding.Encoder
import net.minecraft.item.ItemStack
import net.minecraft.nbt.NbtCompound
import net.minecraft.nbt.NbtIo
import net.minecraft.nbt.NbtList
import net.minecraft.nbt.NbtOps
import net.minecraft.nbt.NbtSizeTracker
@Serializable(with = VirtualInventory.Serializer::class)
data class VirtualInventory(
val stacks: List<ItemStack>
) {
val rows = stacks.size / 9
init {
assert(stacks.size % 9 == 0)
assert(stacks.size / 9 in 1..5)
}
object Serializer : KSerializer<VirtualInventory> {
const val INVENTORY = "INVENTORY"
override val descriptor: SerialDescriptor
get() = PrimitiveSerialDescriptor("VirtualInventory", PrimitiveKind.STRING)
override fun deserialize(decoder: Decoder): VirtualInventory {
val s = decoder.decodeString()
val n = NbtIo.readCompressed(ByteArrayInputStream(s.decodeBase64Bytes()), NbtSizeTracker.of(100_000_000))
val items = n.getList(INVENTORY, NbtCompound.COMPOUND_TYPE.toInt())
return VirtualInventory(items.map {
it as NbtCompound
if (it.isEmpty) ItemStack.EMPTY
else runCatching {
ItemStack.CODEC.parse(NbtOps.INSTANCE, it).orThrow
}.getOrElse { ItemStack.EMPTY }
})
}
override fun serialize(encoder: Encoder, value: VirtualInventory) {
val list = NbtList()
value.stacks.forEach {
if (it.isEmpty) list.add(NbtCompound())
else list.add(runCatching { ItemStack.CODEC.encode(it, NbtOps.INSTANCE, NbtCompound()).orThrow }
.getOrElse { NbtCompound() })
}
val baos = ByteArrayOutputStream()
NbtIo.writeCompressed(NbtCompound().also { it.put(INVENTORY, list) }, baos)
encoder.encodeString(baos.toByteArray().encodeBase64())
}
}
}
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