package net.shadowfacts.phycon.networking

import net.fabricmc.fabric.api.client.networking.v1.ClientPlayNetworking
import net.fabricmc.fabric.api.networking.v1.PacketByteBufs
import net.fabricmc.fabric.api.networking.v1.PacketSender
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.PhysicalConnectivityClient
import net.shadowfacts.phycon.block.terminal.AbstractTerminalBlockEntity
import net.shadowfacts.phycon.block.terminal.AbstractTerminalScreenHandler
import net.shadowfacts.phycon.util.TerminalSettings

/**
 * @author shadowfacts
 */
object C2STerminalUpdateDisplayedItems: ServerReceiver {

	override val CHANNEL = Identifier(PhysicalConnectivity.MODID, "terminal_update_displayed")

	operator fun invoke(terminal: AbstractTerminalBlockEntity, query: String, scrollPosition: Float): Packet<*> {
		val buf = PacketByteBufs.create()

		buf.writeIdentifier(terminal.world!!.registryKey.value)
		buf.writeBlockPos(terminal.pos)

		buf.writeString(query)
		buf.writeNbt(PhysicalConnectivityClient.terminalSettings.toTag())
		buf.writeFloat(scrollPosition)

		return ClientPlayNetworking.createC2SPacket(CHANNEL, buf)
	}

	override fun receive(server: MinecraftServer, player: ServerPlayerEntity, handler: ServerPlayNetworkHandler, buf: PacketByteBuf, responseSender: PacketSender) {
		val dimID = buf.readIdentifier()
		val pos = buf.readBlockPos()
		val query = buf.readString()
		val settings = TerminalSettings()
		settings.fromTag(buf.readNbt()!!)
		val scrollPosition = buf.readFloat()

		server.execute {
			if (player.world.registryKey.value != dimID) return@execute
			val screenHandler = player.currentScreenHandler
			if (screenHandler !is AbstractTerminalScreenHandler<*>) return@execute
			if (screenHandler.terminal.pos != pos) return@execute
			screenHandler.sendUpdatedItemsToClient(player, query, settings, scrollPosition)
		}
	}
}