src/main/scala/li/cil/oc/integration/appeng/DriverBlockInterface.scala

package li.cil.oc.integration.appeng

import appeng.tile.misc.TileInterface
import li.cil.oc.api.driver.EnvironmentAware
import li.cil.oc.api.driver.NamedBlock
import li.cil.oc.api.internal.Database
import li.cil.oc.api.machine.Arguments
import li.cil.oc.api.machine.Callback
import li.cil.oc.api.machine.Context
import li.cil.oc.api.network.Component
import li.cil.oc.api.network.ManagedEnvironment
import li.cil.oc.api.prefab.DriverTileEntity
import li.cil.oc.integration.ManagedTileEntityEnvironment
import li.cil.oc.util.ExtendedArguments._
import li.cil.oc.util.ResultWrapper._
import net.minecraft.item.ItemStack
import net.minecraft.world.World

object DriverBlockInterface extends DriverTileEntity with EnvironmentAware {
  def getTileEntityClass: Class[_] = classOf[TileInterface]

  def createEnvironment(world: World, x: Int, y: Int, z: Int): ManagedEnvironment =
    new Environment(world.getTileEntity(x, y, z).asInstanceOf[TileInterface])

  override def providedEnvironment(stack: ItemStack) =
    if (AEUtil.isBlockInterface(stack)) classOf[Environment]
    else null

  class Environment(tileEntity: TileInterface) extends ManagedTileEntityEnvironment[TileInterface](tileEntity, "me_interface") with NamedBlock {
    override def preferredName = "me_interface"

    override def priority = 1

    @Callback(doc = "function([slot:number]):table -- Get the configuration of the interface.")
    def getInterfaceConfiguration(context: Context, args: Arguments): Array[AnyRef] = {
      val config = tileEntity.getInventoryByName("config")
      val slot = args.optSlot(config, 0, 0)
      val stack = config.getStackInSlot(slot)
      result(stack)
    }

    @Callback(doc = "function([slot:number][, database:address, entry:number[, size:number]]):boolean -- Configure the interface.")
    def setInterfaceConfiguration(context: Context, args: Arguments): Array[AnyRef] = {
      val config = tileEntity.getInventoryByName("config")
      val slot = if (args.isString(0)) 0 else args.optSlot(config, 0, 0)
      val stack = if (args.count > 1) {
        val (address, entry, size) =
          if (args.isString(0)) (args.checkString(0), args.checkInteger(1), args.optInteger(2, 1))
          else (args.checkString(1), args.checkInteger(2), args.optInteger(3, 1))

        node.network.node(address) match {
          case component: Component => component.host match {
            case database: Database =>
              val dbStack = database.getStackInSlot(entry - 1)
              if (dbStack == null || size < 1) null
              else {
                dbStack.stackSize = math.min(size, dbStack.getMaxStackSize)
                dbStack
              }
            case _ => throw new IllegalArgumentException("not a database")
          }
          case _ => throw new IllegalArgumentException("no such component")
        }
      }
      else null
      config.setInventorySlotContents(slot, stack)
      context.pause(0.5)
      result(true)
    }
  }

}