package resonantinduction.old.transport.crate;

import java.util.List;
import java.util.Set;

import net.minecraft.block.Block;
import net.minecraft.client.renderer.texture.IconRegister;
import net.minecraft.client.renderer.tileentity.TileEntitySpecialRenderer;
import net.minecraft.creativetab.CreativeTabs;
import net.minecraft.entity.item.EntityItem;
import net.minecraft.entity.player.EntityPlayer;
import net.minecraft.entity.player.EntityPlayerMP;
import net.minecraft.item.Item;
import net.minecraft.item.ItemStack;
import net.minecraft.tileentity.TileEntity;
import net.minecraft.util.Icon;
import net.minecraft.world.World;
import resonantinduction.core.Reference;
import resonantinduction.core.Settings;
import resonantinduction.core.prefab.block.BlockMachine;
import resonantinduction.old.client.render.RenderCrate;
import universalelectricity.api.UniversalElectricity;

import com.builtbroken.common.Pair;

import cpw.mods.fml.relauncher.Side;
import cpw.mods.fml.relauncher.SideOnly;

/** A block that allows the placement of mass amount of a specific item within it. It will be allowed
 * to go on Conveyor Belts
 * 
 * @author DarkGuardsman */
public class BlockCrate extends BlockMachine
{
    Icon adv, elt;

    public BlockCrate()
    {
        super(Settings.CONFIGURATION, "crate", UniversalElectricity.machine);
    }

    @SideOnly(Side.CLIENT)
    @Override
    public void registerIcons(IconRegister iconReg)
    {
        this.blockIcon = iconReg.registerIcon(Reference.PREFIX + "crate");
        this.adv = iconReg.registerIcon(Reference.PREFIX + "crate_adv");
        this.elt = iconReg.registerIcon(Reference.PREFIX + "crate_elt");
    }

    @Override
    @SideOnly(Side.CLIENT)
    public Icon getIcon(int side, int meta)
    {
        if (meta == 1)
        {
            return adv;
        }
        else if (meta == 2)
        {
            return elt;
        }
        return this.blockIcon;
    }

    @Override
    public void onBlockClicked(World world, int x, int y, int z, EntityPlayer player)
    {
        if (!world.isRemote)
        {
            if (world.getBlockTileEntity(x, y, z) instanceof TileEntityCrate)
            {
                TileEntityCrate tileEntity = (TileEntityCrate) world.getBlockTileEntity(x, y, z);

                /** Make double clicking input all stacks. */
                boolean allMode = (world.getWorldTime() - tileEntity.prevClickTime < 10);

                tileEntity.prevClickTime = world.getWorldTime();

                this.tryEject(tileEntity, player, allMode);
            }

        }
    }

    /** Placed the item the player is holding into the crate. */
    @Override
    public boolean onBlockActivated(World world, int x, int y, int z, EntityPlayer entityPlayer, int side, float hitX, float hitY, float hitZ)
    {
        if (super.onBlockActivated(world, x, y, z, entityPlayer, side, hitX, hitY, hitZ))
        {
            return true;
        }

        if (!world.isRemote)
        {
            if (world.getBlockTileEntity(x, y, z) instanceof TileEntityCrate)
            {
                TileEntityCrate tileEntity = (TileEntityCrate) world.getBlockTileEntity(x, y, z);

                /** Make double clicking input all stacks. */
                boolean allMode = (world.getWorldTime() - tileEntity.prevClickTime < 10);

                tileEntity.prevClickTime = world.getWorldTime();
                ItemStack current = entityPlayer.inventory.getCurrentItem();
                if (side == 1 && entityPlayer.capabilities.isCreativeMode)
                {
                    if (current != null && tileEntity.getSampleStack() == null)
                    {
                        ItemStack cStack = current.copy();
                        cStack.stackSize = TileEntityCrate.getSlotCount(world.getBlockMetadata(x, y, z)) * 64;
                        BlockCrate.addStackToCrate(tileEntity, cStack);
                    }
                }
                // Add items
                if (side == 1 || (side > 1 && hitY > 0.5) || !entityPlayer.capabilities.isCreativeMode)
                {
                    this.tryInsert(tileEntity, entityPlayer, allMode);
                }
                // Remove items
                else if (side == 0 || (side > 1 && hitY <= 0.5))
                {
                    this.tryEject(tileEntity, entityPlayer, allMode);
                }

            }
        }

        return true;
    }

    /** Try to inject it into the crate. Otherwise, look around for nearby crates and try to put them
     * in. */
    public void tryInsert(TileEntityCrate tileEntity, EntityPlayer player, boolean allMode, boolean doSearch)
    {
        boolean success;

        if (allMode)
        {
            success = this.insertAllItems(tileEntity, player);
        }
        else
        {
            success = this.insertCurrentItem(tileEntity, player);
        }

        if (!success && doSearch)
        {
            PathfinderCrate pathfinder = new PathfinderCrate().init(tileEntity);

            for (TileEntity checkTile : pathfinder.iteratedNodes)
            {
                if (checkTile instanceof TileEntityCrate)
                {
                    this.tryInsert(((TileEntityCrate) checkTile), player, allMode, false);
                }
            }
        }
    }

    public void tryInsert(TileEntityCrate tileEntity, EntityPlayer player, boolean allMode)
    {
        this.tryInsert(tileEntity, player, allMode, true);
    }

    public void tryEject(TileEntityCrate tileEntity, EntityPlayer player, boolean allMode)
    {
        if (tileEntity.getSampleStack() == null)
        {
            return;
        }
        if (allMode && !player.isSneaking())
        {
            this.ejectItems(tileEntity, player, tileEntity.getSlotCount() * 64);
        }
        else
        {
            if (player.isSneaking())
            {
                this.ejectItems(tileEntity, player, 1);
            }
            else
            {
                this.ejectItems(tileEntity, player, tileEntity.getSampleStack().getMaxStackSize());
            }
        }
    }

    /** Inserts a the itemStack the player is holding into the crate. */
    public boolean insertCurrentItem(TileEntityCrate tileEntity, EntityPlayer player)
    {
        ItemStack currentStack = player.getCurrentEquippedItem();

        if (currentStack != null)
        {
            if (currentStack.getItem().itemID == this.blockID)
            {
                ItemStack containedStack = ItemBlockCrate.getContainingItemStack(currentStack);
                ItemStack crateStack = tileEntity.getSampleStack();
                if (containedStack != null && (crateStack == null || (crateStack != null && containedStack.isItemEqual(crateStack))))
                {
                    ItemStack returned = BlockCrate.addStackToCrate(tileEntity, containedStack);
                    ItemBlockCrate.setContainingItemStack(currentStack, returned);
                    return true;
                }

            }
            else
            {
                if (tileEntity.getSampleStack() != null)
                {
                    if (!tileEntity.getSampleStack().isItemEqual(currentStack))
                    {
                        return false;
                    }
                }

                player.inventory.setInventorySlotContents(player.inventory.currentItem, BlockCrate.addStackToCrate(tileEntity, currentStack));
                return true;
            }
        }

        return false;
    }

    /** Inserts all items of the same type this player has into the crate.
     * 
     * @return True on success */
    public boolean insertAllItems(TileEntityCrate tileEntity, EntityPlayer player)
    {
        ItemStack requestStack = null;

        if (tileEntity.getSampleStack() != null)
        {
            requestStack = tileEntity.getSampleStack().copy();
        }

        if (requestStack == null)
        {
            requestStack = player.getCurrentEquippedItem();
        }

        if (requestStack != null && requestStack.itemID != this.blockID)
        {
            boolean success = false;

            for (int i = 0; i < player.inventory.getSizeInventory(); i++)
            {
                ItemStack currentStack = player.inventory.getStackInSlot(i);

                if (currentStack != null)
                {
                    if (requestStack.isItemEqual(currentStack))
                    {
                        player.inventory.setInventorySlotContents(i, BlockCrate.addStackToCrate(tileEntity, currentStack));

                        if (player instanceof EntityPlayerMP)
                        {
                            ((EntityPlayerMP) player).sendContainerToPlayer(player.inventoryContainer);
                        }

                        success = true;
                    }
                }
            }
            return success;
        }
        return false;
    }

    /** Ejects and item out of the crate and spawn it under the player entity.
     * 
     * @param tileEntity
     * @param player
     * @param requestSize - The maximum stack size to take out. Default should be 64.
     * @return True on success */
    public boolean ejectItems(TileEntityCrate tileEntity, EntityPlayer player, int requestSize)
    {
        World world = tileEntity.worldObj;
        if (!world.isRemote)
        {
            ItemStack sampleStack = tileEntity.getSampleStack();
            int ammountEjected = 0;
            if (sampleStack != null && requestSize > 0)
            {
                for (int slot = 0; slot < tileEntity.getInventory().getSizeInventory(); slot++)
                {
                    ItemStack slotStack = tileEntity.getInventory().getStackInSlot(slot);

                    if (slotStack != null && slotStack.stackSize > 0)
                    {
                        int amountToTake = Math.min(slotStack.stackSize, requestSize);

                        ItemStack dropStack = slotStack.copy();
                        dropStack.stackSize = amountToTake;

                        EntityItem entityItem = new EntityItem(world, player.posX, player.posY, player.posZ, dropStack);
                        entityItem.delayBeforeCanPickup = 0;
                        world.spawnEntityInWorld(entityItem);

                        slotStack.stackSize -= amountToTake;
                        ammountEjected += amountToTake;
                        if (slotStack.stackSize <= 0)
                        {
                            slotStack = null;
                        }
                        tileEntity.getInventory().setInventorySlotContents(slot, slotStack);

                    }
                    if (ammountEjected >= requestSize)
                    {
                        return true;
                    }
                }

                return true;
            }
        }

        return false;
    }

    /** Puts an itemStack into the crate.
     * 
     * @param tileEntity
     * @param itemStack */
    public static ItemStack addStackToCrate(TileEntityCrate tileEntity, ItemStack itemStack)
    {
        if (itemStack == null || itemStack.getItem().isDamageable() && itemStack.getItem().getDamage(itemStack) > 0)
        {
            return itemStack;
        }

        ItemStack containingStack = tileEntity.getSampleStack();

        if (containingStack == null || containingStack != null && containingStack.isItemEqual(itemStack))
        {
            int room = Math.max((tileEntity.getInventory().getSizeInventory() * 64) - (containingStack != null ? containingStack.stackSize : 0), 0);
            if (itemStack.stackSize <= room)
            {
                tileEntity.addToStack(itemStack);
                itemStack = null;
            }
            else
            {
                tileEntity.addToStack(itemStack, room);
                itemStack.stackSize -= room;
            }
            return itemStack;

        }

        if (itemStack.stackSize <= 0)
        {
            return null;
        }

        return itemStack;
    }

    @Override
    public boolean onUseWrench(World world, int x, int y, int z, EntityPlayer par5EntityPlayer, int side, float hitX, float hitY, float hitZ)
    {
        if (!world.isRemote && world.getBlockTileEntity(x, y, z) != null)
        {
            TileEntityCrate tileEntity = (TileEntityCrate) world.getBlockTileEntity(x, y, z);
            ItemStack containingStack = tileEntity.getSampleStack();
            tileEntity.buildSampleStack();

            if (containingStack != null)
            {
                if (containingStack.stackSize > 0)
                {
                    float area = 0.7F;
                    double dropX = (world.rand.nextFloat() * area) + (1.0F - area) * 0.5D;
                    double dropY = (world.rand.nextFloat() * area) + (1.0F - area) * 0.5D;
                    double dropZ = (world.rand.nextFloat() * area) + (1.0F - area) * 0.5D;

                    ItemStack dropStack = new ItemStack(this, 1, tileEntity.getBlockMetadata());
                    ItemBlockCrate.setContainingItemStack(dropStack, containingStack);

                    EntityItem var13 = new EntityItem(world, x + dropX, y + dropY, z + dropZ, dropStack);
                    var13.delayBeforeCanPickup = 10;
                    world.spawnEntityInWorld(var13);

                    for (int i = 0; i < tileEntity.getInventory().getSizeInventory(); i++)
                    {
                        tileEntity.getInventory().setInventorySlotContents(i, null);
                    }
                    world.setBlock(x, y, z, 0, 0, 3);
                    return true;
                }
            }
        }

        return false;
    }

    @Override
    public int damageDropped(int metadata)
    {
        return metadata;
    }

    @Override
    public void getTileEntities(int blockID, Set<Pair<String, Class<? extends TileEntity>>> list)
    {
        list.add(new Pair<String, Class<? extends TileEntity>>("ALCrate", TileEntityCrate.class));
    }

    @Override
    @SideOnly(Side.CLIENT)
    public void getClientTileEntityRenderers(List<Pair<Class<? extends TileEntity>, TileEntitySpecialRenderer>> list)
    {
        list.add(new Pair<Class<? extends TileEntity>, TileEntitySpecialRenderer>(TileEntityCrate.class, new RenderCrate()));
    }

    @Override
    public TileEntity createNewTileEntity(World var1)
    {
        return new TileEntityCrate();
    }

    @Override
    public void getSubBlocks(int par1, CreativeTabs par2CreativeTabs, List list)
    {
        for (int i = 0; i < 3; i++)
        {
            list.add(new ItemStack(this, 1, i));
        }
        try
        {
            ItemStack stack = new ItemStack(this, 1, 2);
            ItemBlockCrate.setContainingItemStack(stack, new ItemStack(Block.cobblestone, 2048, 0));
            list.add(stack);
            ItemStack stack2 = new ItemStack(this, 1, 2);
            ItemBlockCrate.setContainingItemStack(stack2, new ItemStack(Item.coal, 2048, 1));
            list.add(stack);
        }
        catch (Exception e)
        {
            e.printStackTrace();
        }

    }

}