package micdoodle8.mods.galacticraft.core.inventory;

import micdoodle8.mods.galacticraft.api.inventory.IInventoryGC;
import net.minecraft.entity.player.EntityPlayer;
import net.minecraft.inventory.ItemStackHelper;
import net.minecraft.item.ItemStack;
import net.minecraft.nbt.NBTTagCompound;
import net.minecraft.nbt.NBTTagList;
import net.minecraft.util.NonNullList;
import net.minecraft.util.text.ITextComponent;

import javax.annotation.Nonnull;

public class InventoryExtended implements IInventoryGC
{
    public NonNullList<ItemStack> stacks = NonNullList.withSize(11, ItemStack.EMPTY);

    @Override
    public boolean isEmpty()
    {
        for (ItemStack itemstack : this.stacks)
        {
            if (!itemstack.isEmpty())
            {
                return false;
            }
        }

        return true;
    }

    @Override
    public int getSizeInventory()
    {
        return this.stacks.size();
    }

    @Override
    @Nonnull
    public ItemStack getStackInSlot(int index)
    {
        return this.stacks.get(index);
    }

    @Override
    public ItemStack decrStackSize(int index, int count)
    {
        ItemStack itemstack = ItemStackHelper.getAndSplit(this.stacks, index, count);

        if (!itemstack.isEmpty())
        {
            this.markDirty();
        }

        return itemstack;
    }

    @Override
    public ItemStack removeStackFromSlot(int index)
    {
        return ItemStackHelper.getAndRemove(this.stacks, index);
    }

    @Override
    public void setInventorySlotContents(int index, ItemStack stack)
    {
        this.stacks.set(index, stack);

        if (stack.getCount() > this.getInventoryStackLimit())
        {
            stack.setCount(this.getInventoryStackLimit());
        }

        this.markDirty();
    }

    @Override
    public String getName()
    {
        return "Galacticraft Player Inventory";
    }

    @Override
    public boolean hasCustomName()
    {
        return true;
    }

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

    @Override
    public void markDirty()
    {

    }

    @Override
    public boolean isUsableByPlayer(EntityPlayer entityplayer)
    {
        return true;
    }

    @Override
    public void openInventory(EntityPlayer player)
    {

    }

    @Override
    public void closeInventory(EntityPlayer player)
    {

    }

    @Override
    public boolean isItemValidForSlot(int i, ItemStack itemstack)
    {
        return false;
    }

    @Override
    public void dropExtendedItems(EntityPlayer player)
    {
        for (int i = 0; i < this.stacks.size(); i++)
        {
            ItemStack stack = this.stacks.get(i);

            if (!stack.isEmpty())
            {
                player.dropItem(stack, true);
            }

            this.stacks.set(i, ItemStack.EMPTY);
        }
    }

    // Backwards compatibility for old inventory
    public void readFromNBTOld(NBTTagList par1NBTTagList)
    {
        this.stacks = NonNullList.withSize(11, ItemStack.EMPTY);

        for (int i = 0; i < par1NBTTagList.tagCount(); ++i)
        {
            final NBTTagCompound nbttagcompound = par1NBTTagList.getCompoundTagAt(i);
            final int j = nbttagcompound.getByte("Slot") & 255;
            final ItemStack itemstack = new ItemStack(nbttagcompound);

            if (!itemstack.isEmpty())
            {
                if (j >= 200 && j < this.stacks.size() + 200 - 1)
                {
                    this.stacks.set(j - 200, itemstack);
                }
            }
        }
    }

    public void readFromNBT(NBTTagList tagList)
    {
        this.stacks = NonNullList.withSize(11, ItemStack.EMPTY);

        for (int i = 0; i < tagList.tagCount(); ++i)
        {
            final NBTTagCompound nbttagcompound = tagList.getCompoundTagAt(i);
            final int j = nbttagcompound.getByte("Slot") & 255;
            final ItemStack itemstack = new ItemStack(nbttagcompound);

            if (!itemstack.isEmpty())
            {
                this.stacks.set(j, itemstack);
            }
        }
    }

    public NBTTagList writeToNBT(NBTTagList tagList)
    {
        NBTTagCompound nbttagcompound;

        for (int i = 0; i < this.stacks.size(); ++i)
        {
            if (!this.stacks.get(i).isEmpty())
            {
                nbttagcompound = new NBTTagCompound();
                nbttagcompound.setByte("Slot", (byte) i);
                this.stacks.get(i).writeToNBT(nbttagcompound);
                tagList.appendTag(nbttagcompound);
            }
        }

        return tagList;
    }

    @Override
    public void copyInventory(IInventoryGC par1InventoryPlayer)
    {
        InventoryExtended toCopy = (InventoryExtended) par1InventoryPlayer;
        for (int i = 0; i < this.stacks.size(); ++i)
        {
            this.stacks.set(i, toCopy.stacks.get(i).copy());
        }
    }

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

    @Override
    public void setField(int id, int value)
    {

    }

    @Override
    public int getFieldCount()
    {
        return 0;
    }

    @Override
    public void clear()
    {

    }

    @Override
    public ITextComponent getDisplayName()
    {
        return null;
    }
}