package net.minecraft.inventory;

import net.minecraft.entity.player.EntityPlayer;
import net.minecraft.item.ItemStack;
import net.minecraft.util.ChatComponentText;
import net.minecraft.util.ChatComponentTranslation;
import net.minecraft.util.IChatComponent;

public class InventoryCrafting implements IInventory
{
    /** List of the stacks in the crafting matrix. */
    private final ItemStack[] stackList;

    /** the width of the crafting inventory */
    private final int inventoryWidth;
    private final int inventoryHeight;

    /**
     * Class containing the callbacks for the events on_GUIClosed and on_CraftMaxtrixChanged.
     */
    private final Container eventHandler;

    public InventoryCrafting(Container eventHandlerIn, int width, int height)
    {
        int i = width * height;
        this.stackList = new ItemStack[i];
        this.eventHandler = eventHandlerIn;
        this.inventoryWidth = width;
        this.inventoryHeight = height;
    }

    /**
     * Returns the number of slots in the inventory.
     */
    public int getSizeInventory()
    {
        return this.stackList.length;
    }

    /**
     * Returns the stack in the given slot.
     */
    public ItemStack getStackInSlot(int index)
    {
        return index >= this.getSizeInventory() ? null : this.stackList[index];
    }

    /**
     * Returns the itemstack in the slot specified (Top left is 0, 0). Args: row, column
     */
    public ItemStack getStackInRowAndColumn(int row, int column)
    {
        return row >= 0 && row < this.inventoryWidth && column >= 0 && column <= this.inventoryHeight ? this.getStackInSlot(row + column * this.inventoryWidth) : null;
    }

    /**
     * Gets the name of this command sender (usually username, but possibly "Rcon")
     */
    public String getName()
    {
        return "container.crafting";
    }

    /**
     * Returns true if this thing is named
     */
    public boolean hasCustomName()
    {
        return false;
    }

    /**
     * Get the formatted ChatComponent that will be used for the sender's username in chat
     */
    public IChatComponent getDisplayName()
    {
        return (IChatComponent)(this.hasCustomName() ? new ChatComponentText(this.getName()) : new ChatComponentTranslation(this.getName(), new Object[0]));
    }

    /**
     * Removes a stack from the given slot and returns it.
     */
    public ItemStack removeStackFromSlot(int index)
    {
        if (this.stackList[index] != null)
        {
            ItemStack itemstack = this.stackList[index];
            this.stackList[index] = null;
            return itemstack;
        }
        else
        {
            return null;
        }
    }

    /**
     * Removes up to a specified number of items from an inventory slot and returns them in a new stack.
     */
    public ItemStack decrStackSize(int index, int count)
    {
        if (this.stackList[index] != null)
        {
            if (this.stackList[index].stackSize <= count)
            {
                ItemStack itemstack1 = this.stackList[index];
                this.stackList[index] = null;
                this.eventHandler.onCraftMatrixChanged(this);
                return itemstack1;
            }
            else
            {
                ItemStack itemstack = this.stackList[index].splitStack(count);

                if (this.stackList[index].stackSize == 0)
                {
                    this.stackList[index] = null;
                }

                this.eventHandler.onCraftMatrixChanged(this);
                return itemstack;
            }
        }
        else
        {
            return null;
        }
    }

    /**
     * Sets the given item stack to the specified slot in the inventory (can be crafting or armor sections).
     */
    public void setInventorySlotContents(int index, ItemStack stack)
    {
        this.stackList[index] = stack;
        this.eventHandler.onCraftMatrixChanged(this);
    }

    /**
     * Returns the maximum stack size for a inventory slot. Seems to always be 64, possibly will be extended.
     */
    public int getInventoryStackLimit()
    {
        return 64;
    }

    /**
     * For tile entities, ensures the chunk containing the tile entity is saved to disk later - the game won't think it
     * hasn't changed and skip it.
     */
    public void markDirty()
    {
    }

    /**
     * Do not make give this method the name canInteractWith because it clashes with Container
     */
    public boolean isUseableByPlayer(EntityPlayer player)
    {
        return true;
    }

    public void openInventory(EntityPlayer player)
    {
    }

    public void closeInventory(EntityPlayer player)
    {
    }

    /**
     * Returns true if automation is allowed to insert the given stack (ignoring stack size) into the given slot.
     */
    public boolean isItemValidForSlot(int index, ItemStack stack)
    {
        return true;
    }

    public int getField(int id)
    {
        return 0;
    }

    public void setField(int id, int value)
    {
    }

    public int getFieldCount()
    {
        return 0;
    }

    public void clear()
    {
        for (int i = 0; i < this.stackList.length; ++i)
        {
            this.stackList[i] = null;
        }
    }

    public int getHeight()
    {
        return this.inventoryHeight;
    }

    public int getWidth()
    {
        return this.inventoryWidth;
    }
}
