PhysicalConnectivity/src/main/kotlin/net/shadowfacts/phycon/networking/C2SConfigureDevice.kt

package net.shadowfacts.phycon.networking

import net.fabricmc.fabric.api.networking.v1.PacketByteBufs
import net.fabricmc.fabric.api.networking.v1.PacketSender
import net.minecraft.block.entity.BlockEntity
import net.minecraft.nbt.NbtCompound
import net.minecraft.network.Packet
import net.minecraft.network.PacketByteBuf
import net.minecraft.server.MinecraftServer
import net.minecraft.server.network.ServerPlayNetworkHandler
import net.minecraft.server.network.ServerPlayerEntity
import net.minecraft.util.Identifier
import net.shadowfacts.phycon.PhysicalConnectivity
import net.shadowfacts.phycon.util.ClientConfigurableDevice

/**
 * @author shadowfacts
 */
object C2SConfigureDevice: ServerReceiver {
	override val CHANNEL = Identifier(PhysicalConnectivity.MODID, "configure_device")

	operator fun <T> invoke(be: T): Packet<*> where T: BlockEntity, T: ClientConfigurableDevice {
		val buf = PacketByteBufs.create()

		buf.writeIdentifier(be.world!!.registryKey.value)
		buf.writeBlockPos(be.pos)
		val tag = NbtCompound()
		be.writeDeviceConfiguration(tag)
		buf.writeNbt(tag)

		return createPacket(buf)
	}

	override fun receive(server: MinecraftServer, player: ServerPlayerEntity, handler: ServerPlayNetworkHandler, buf: PacketByteBuf, responseSender: PacketSender) {
		val dimID = buf.readIdentifier()
		val pos = buf.readBlockPos()
		val tag = buf.readNbt() ?: return

		server.execute {
			// todo: check if the player is close enough
			val world = player.world
			if (world.registryKey.value != dimID) return@execute
			val be = world.getBlockEntity(pos) ?: return@execute
			val device = be as? ClientConfigurableDevice ?: return@execute
			device.loadDeviceConfiguration(tag)
			be.markDirty()
		}
	}
}