package darkknight.jewelrycraft.client;

import darkknight.jewelrycraft.item.ItemBracelet;
import darkknight.jewelrycraft.item.ItemEarrings;
import darkknight.jewelrycraft.item.ItemNecklace;
import darkknight.jewelrycraft.item.ItemRing;
import darkknight.jewelrycraft.util.PlayerUtils;
import darkknight.jewelrycraft.util.Variables;
import net.minecraft.entity.player.EntityPlayer;
import net.minecraft.inventory.IInventory;
import net.minecraft.item.ItemStack;
import net.minecraft.nbt.NBTTagCompound;

public class JewelryInventory implements IInventory {
	public EntityPlayer	player;
	public ItemStack[]	inventory	= new ItemStack[18];

	/**
	 * @param player
	 */
	public JewelryInventory(EntityPlayer player) {
		this.player = player;
		NBTTagCompound nbt = PlayerUtils.getModPlayerPersistTag(
				player, Variables.MODID);
		for (int i = 0; i < 18; i++)
			inventory[i] = ItemStack.loadItemStackFromNBT(
					nbt.getCompoundTag("ext" + i));
	}

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

	/**
	 * @param slot
	 * @return
	 */
	@Override
	public ItemStack getStackInSlot(int slot) {
		return inventory[slot];
	}

	/**
	 * @param slot
	 * @param amount
	 * @return
	 */
	@Override
	public ItemStack decrStackSize(int slot, int amount) {
		ItemStack stack = getStackInSlot(slot);
		if (stack != null)
			if (stack.stackSize > amount) {
				stack = stack.splitStack(amount);
				markDirty();
			} else
				setInventorySlotContents(slot, null);
		return stack;
	}

	/**
	 * @param slot
	 * @return
	 */
	@Override
	public ItemStack getStackInSlotOnClosing(int slot) {
		ItemStack stack = getStackInSlot(slot);
		setInventorySlotContents(slot, null);
		return stack;
	}

	/**
	 * @param slot
	 * @param stack
	 */
	@Override
	public void setInventorySlotContents(int slot, ItemStack stack) {
		inventory[slot] = stack;
		if (stack != null
				&& stack.stackSize > getInventoryStackLimit())
			stack.stackSize = getInventoryStackLimit();
		markDirty();
	}

	/**
	 * @return
	 */
	@Override
	public String getInventoryName() {
		return "Jewelry";
	}

	/**
	 * @return
	 */
	@Override
	public boolean hasCustomInventoryName() {
		return false;
	}

	/**
	 * @return
	 */
	@Override
	public int getInventoryStackLimit() {
		return 1;
	}

	/**
	 * 
	 */
	@Override
	public void markDirty() {
		NBTTagCompound nbt = PlayerUtils.getModPlayerPersistTag(
				player, Variables.MODID);
		for (int i = 0; i < 18; i++)
			if (inventory[i] != null)
				nbt.setTag("ext" + i, inventory[i]
						.writeToNBT(nbt.getCompoundTag(
								"ext" + i)));
			else
				nbt.removeTag("ext" + i);
	}

	/**
	 * @param playr
	 * @return
	 */
	@Override
	public boolean isUseableByPlayer(EntityPlayer playr) {
		return true;
	}

	/**
	 * 
	 */
	@Override
	public void openInventory() {
		// Do nothing
	}

	/**
	 * 
	 */
	@Override
	public void closeInventory() {
		// Do nothing
	}

	/**
	 * @param slot
	 * @param stack
	 * @return
	 */
	@Override
	public boolean isItemValidForSlot(int slot, ItemStack stack) {
		if (slot >= 0 && slot <= 9
				&& stack.getItem() instanceof ItemRing)
			return true;
		else if (slot >= 10 && slot <= 13
				&& stack.getItem() instanceof ItemBracelet)
			return true;
		else if (slot >= 14 && slot <= 16
				&& stack.getItem() instanceof ItemNecklace)
			return true;
		else if (slot == 17
				&& stack.getItem() instanceof ItemEarrings)
			return true;
		return false;
	}
}