li/cil/oc/server/driver/FileSystem.scala

package li.cil.oc.server.driver

import li.cil.oc
import li.cil.oc.api.driver.{Item, Slot}
import li.cil.oc.common.item.Hdd
import li.cil.oc.{Config, Items}
import net.minecraft.item.ItemStack

object FileSystem extends Item {
  override def api = Option(getClass.getResourceAsStream(Config.driverPath + "fs.lua"))

  override def worksWith(item: ItemStack) = WorksWith(Items.hdd2, Items.hdd4, Items.hdd8)(item)

  override def slot(item: ItemStack) = Slot.HDD

  override def node(item: ItemStack) = Items.multi.subItem(item) match {
    case Some(subItem: Hdd) =>
      // We have a bit of a chicken-egg problem here, because we want to use the
      // node's address as the folder name... so we generate the address here,
      // if necessary. No one will know, right? Right!?
      val tag = nbt(item)
      val address =
        if (tag.hasKey("address"))
          tag.getString("address")
        else
          java.util.UUID.randomUUID().toString
      oc.api.FileSystem.fromSaveDir(address, subItem.megaBytes * 1024 * 1024).flatMap(oc.api.FileSystem.asNode) match {
        case None => None
        case Some(node) =>
          node.address = Some(address)
          node.load(tag)
          Some(node)
      }
    case _ => None
  }
}