package melonslise.runicinscription.common.inventory;

import melonslise.runicinscription.common.container.ContainerRuneInscription;
import net.minecraft.entity.player.EntityPlayer;
import net.minecraft.inventory.IInventory;
import net.minecraft.item.ItemStack;

public class InventoryRuneInscription implements IInventory
{
    private ItemStack[] inventory = new ItemStack[2];
    private ContainerRuneInscription containerInscription;
    private String name = "Rune Inscription";

    public InventoryRuneInscription(ContainerRuneInscription containerInscription)
    {
        this.containerInscription = containerInscription;
    }

    @Override
    public int getSizeInventory()
    {
        return this.inventory.length;
    }

    @Override
    public ItemStack getStackInSlot(int slot)
    {
        if(slot >= this.getSizeInventory())
        {
            return null;
        }
        else
        {
            return this.inventory[slot];
        }
    }

    @Override
    public ItemStack decrStackSize(int slot, int amount)
    {
        if(this.inventory[slot] != null)
        {
            ItemStack itemStack;

            if(this.inventory[slot].stackSize > amount)
            {
                itemStack = this.inventory[slot].splitStack(amount);
                if (this.inventory[slot].stackSize == 0)
                {
                    this.inventory[slot] = null;
                }
                if(slot == 0)
                {
                    this.containerInscription.onMatrixChanged();
                }
                return itemStack;
            }
            else
            {
                itemStack = this.inventory[slot];
                this.inventory[slot] = null;
                if(slot == 0)
                {
                    this.containerInscription.onMatrixChanged();
                }
                return itemStack;
            }
        }
        else
        {
            return null;
        }
    }

    @Override
    public ItemStack getStackInSlotOnClosing(int slot)
    {
        if(this.inventory[slot] != null)
        {
            ItemStack itemStack = this.inventory[slot];
            this.inventory[slot] = null;
            return itemStack;
        }
        else
        {
            return null;
        }
    }

    @Override
    public void setInventorySlotContents(int slot, ItemStack itemStack)
    {
        this.inventory[slot] = itemStack;
        if(slot == 0)
        {
            this.containerInscription.onMatrixChanged();
        }
    }

    @Override
    public String getInventoryName()
    {
        return this.name;
    }

    @Override
    public boolean hasCustomInventoryName()
    {
        if(this.name.length() > 0)
        {
            return true;
        }
        else
        {
            return false;
        }
    }

    @Override
    public int getInventoryStackLimit()
    {
        return 64;
    }

    @Override
    public void markDirty()
    {

    }

    @Override
    public boolean isUseableByPlayer(EntityPlayer player)
    {
        return true;
    }

    @Override
    public void openInventory()
    {

    }

    @Override
    public void closeInventory()
    {

    }

    @Override
    public boolean isItemValidForSlot(int slot, ItemStack itemStack)
    {
        return true;
    }
}