package calclavia.lib.gui;

import calclavia.lib.IPlayerUsing;
import net.minecraft.entity.player.EntityPlayer;
import net.minecraft.inventory.Container;
import net.minecraft.inventory.IInventory;
import net.minecraft.inventory.Slot;
import net.minecraft.item.ItemStack;

public class ContainerBase extends Container {

   protected int slotCount = 0;
   private IInventory inventory;


   public ContainerBase(IInventory inventory) {
      this.inventory = inventory;
      this.slotCount = inventory.getSizeInventory();
   }

   public void onContainerClosed(EntityPlayer player) {
      if(this.inventory instanceof IPlayerUsing) {
         ((IPlayerUsing)this.inventory).getPlayersUsing().remove(player);
      }

   }

   public void addPlayerInventory(EntityPlayer player) {
      if(this.inventory instanceof IPlayerUsing) {
         ((IPlayerUsing)this.inventory).getPlayersUsing().add(player);
      }

      int var3;
      for(var3 = 0; var3 < 3; ++var3) {
         for(int var4 = 0; var4 < 9; ++var4) {
            this.addSlotToContainer(new Slot(player.inventory, var4 + var3 * 9 + 9, 8 + var4 * 18, 135 + var3 * 18));
         }
      }

      for(var3 = 0; var3 < 9; ++var3) {
         this.addSlotToContainer(new Slot(player.inventory, var3, 8 + var3 * 18, 193));
      }

   }

   public ItemStack transferStackInSlot(EntityPlayer par1EntityPlayer, int slotID) {
      ItemStack var2 = null;
      Slot var3 = (Slot)super.inventorySlots.get(slotID);
      if(var3 != null && var3.getHasStack()) {
         ItemStack itemStack = var3.getStack();
         var2 = itemStack.copy();
         if(slotID >= this.slotCount) {
            boolean didTry = false;

            for(int i = 0; i < this.slotCount; ++i) {
               if(this.getSlot(i).isItemValid(itemStack)) {
                  didTry = true;
                  if(this.mergeItemStack(itemStack, i, i + 1, false)) {
                     break;
                  }
               }
            }

            if(!didTry) {
               if(slotID < 27 + this.slotCount) {
                  if(!this.mergeItemStack(itemStack, 27 + this.slotCount, 36 + this.slotCount, false)) {
                     return null;
                  }
               } else if(slotID >= 27 + this.slotCount && slotID < 36 + this.slotCount && !this.mergeItemStack(itemStack, this.slotCount, 27 + this.slotCount, false)) {
                  return null;
               }
            }
         } else if(!this.mergeItemStack(itemStack, this.slotCount, 36 + this.slotCount, false)) {
            return null;
         }

         if(itemStack.stackSize == 0) {
            var3.putStack((ItemStack)null);
         } else {
            var3.onSlotChanged();
         }

         if(itemStack.stackSize == var2.stackSize) {
            return null;
         }

         var3.onPickupFromSlot(par1EntityPlayer, itemStack);
      }

      return var2;
   }

   public boolean canInteractWith(EntityPlayer entityplayer) {
      return this.inventory.isUseableByPlayer(entityplayer);
   }
}