package appeng.client.gui.implementations;

import java.util.ArrayList;
import java.util.Collections;
import java.util.HashMap;
import java.util.Iterator;
import java.util.LinkedList;

import net.minecraft.entity.player.InventoryPlayer;
import net.minecraft.item.ItemStack;
import net.minecraft.nbt.NBTTagCompound;

import org.lwjgl.opengl.GL11;

import appeng.client.gui.AEBaseGui;
import appeng.client.gui.widgets.GuiScrollbar;
import appeng.client.me.ClientDCInternalInv;
import appeng.client.me.SlotDisconnected;
import appeng.container.implementations.ContainerInterfaceTerminal;
import appeng.core.localization.GuiText;
import appeng.parts.reporting.PartMonitor;

import com.google.common.collect.HashMultimap;

public class GuiInterfaceTerminal extends AEBaseGui
{

	HashMap<Long, ClientDCInternalInv> byId = new HashMap();
	HashMultimap<String, ClientDCInternalInv> byName = HashMultimap.create();
	ArrayList<String> names = new ArrayList();

	ArrayList<Object> lines = new ArrayList();

	private int getTotalRows()
	{
		return names.size() + byId.size();// unique names, and each inv row.
	}

	public GuiInterfaceTerminal(InventoryPlayer inventoryPlayer, PartMonitor te) {
		super( new ContainerInterfaceTerminal( inventoryPlayer, te ) );
		myScrollBar = new GuiScrollbar();
		xSize = 195;
		ySize = 222;
	}

	LinkedList<SlotDisconnected> dcSlots = new LinkedList();

	@Override
	public void initGui()
	{
		super.initGui();
		myScrollBar.setLeft( 175 );
		myScrollBar.setHeight( 106 );
		myScrollBar.setTop( 18 );
	}

	@Override
	public void drawBG(int offsetX, int offsetY, int mouseX, int mouseY)
	{
		bindTexture( "guis/interfaceterminal.png" );
		this.drawTexturedModalRect( offsetX, offsetY, 0, 0, xSize, ySize );

		int offset = 17;
		int ex = myScrollBar.getCurrentScroll();
		int linesOnPage = 6;

		for (int x = 0; x < linesOnPage; x++)
		{
			if ( ex + x < lines.size() )
			{
				Object lineObj = lines.get( ex + x );
				if ( lineObj instanceof ClientDCInternalInv )
				{
					ClientDCInternalInv inv = (ClientDCInternalInv) lineObj;

					GL11.glColor4f( 1, 1, 1, 1 );
					for (int z = 0; z < inv.inv.getSizeInventory(); z++)
						this.drawTexturedModalRect( offsetX + z * 18 + 7, offsetY + offset, 7, 139, 18, 18 );
				}
			}
			offset += 18;
		}
	}

	@Override
	public void drawFG(int offsetX, int offsetY, int mouseX, int mouseY)
	{
		fontRendererObj.drawString( getGuiDisplayName( GuiText.InterfaceTerminal.getLocal() ), 8, 6, 4210752 );
		fontRendererObj.drawString( GuiText.inventory.getLocal(), 8, ySize - 96 + 3, 4210752 );

		int offset = 17;

		// for (String name : lines)
		int ex = myScrollBar.getCurrentScroll();
		int linesOnPage = 6;

		Iterator<Object> o = inventorySlots.inventorySlots.iterator();
		while (o.hasNext())
		{
			if ( o.next() instanceof SlotDisconnected )
				o.remove();
		}

		for (int x = 0; x < linesOnPage; x++)
		{
			if ( ex + x < lines.size() )
			{
				Object lineObj = lines.get( ex + x );
				if ( lineObj instanceof ClientDCInternalInv )
				{
					ClientDCInternalInv inv = (ClientDCInternalInv) lineObj;
					for (int z = 0; z < inv.inv.getSizeInventory(); z++)
					{
						inventorySlots.inventorySlots.add( new SlotDisconnected( inv, z, z * 18 + 8, 1 + offset ) );
					}
				}
				else if ( lineObj instanceof String )
				{
					String name = (String) lineObj;
					int rows = byName.get( name ).size();
					if ( rows > 1 )
						name = name + " (" + rows + ")";

					while (name.length() > 2 && fontRendererObj.getStringWidth( name ) > 155)
						name = name.substring( 0, name.length() - 1 );

					fontRendererObj.drawString( name, 10, 6 + offset, 4210752 );
				}
				offset += 18;
			}
		}
	}

	boolean refreshList = false;

	public void postUpdate(NBTTagCompound in)
	{
		if ( in.getBoolean( "clear" ) )
		{
			byId.clear();
			refreshList = true;
		}

		for (Object oKey : in.func_150296_c())
		{
			String key = (String) oKey;
			if ( key.startsWith( "=" ) )
			{
				try
				{
					long id = Long.parseLong( key.substring( 1 ), Character.MAX_RADIX );
					NBTTagCompound invData = in.getCompoundTag( key );
					ClientDCInternalInv current = getById( id, invData.getLong( "sortBy" ), invData.getString( "un" ) );

					for (int x = 0; x < current.inv.getSizeInventory(); x++)
					{
						String which = Integer.toString( x );
						if ( invData.hasKey( which ) )
							current.inv.setInventorySlotContents( x, ItemStack.loadItemStackFromNBT( invData.getCompoundTag( which ) ) );
					}
				}
				catch (NumberFormatException ex)
				{
				}
			}
		}

		if ( refreshList )
		{
			refreshList = false;

			byName.clear();
			for (ClientDCInternalInv o : byId.values())
				byName.put( o.getName(), o );

			names.clear();
			names.addAll( byName.keySet() );

			Collections.sort( names );

			lines = new ArrayList( getTotalRows() );
			for (String n : names)
			{
				lines.add( n );

				ArrayList<ClientDCInternalInv> lset = new ArrayList();
				lset.addAll( byName.get( n ) );

				Collections.sort( lset );

				for (ClientDCInternalInv i : lset)
				{
					lines.add( i );
				}
			}

			myScrollBar.setRange( 0, getTotalRows() - 6, 2 );
		}
	}

	private ClientDCInternalInv getById(long id, long sortBy, String string)
	{
		ClientDCInternalInv o = byId.get( id );

		if ( o == null )
		{
			byId.put( id, o = new ClientDCInternalInv( 9, id, sortBy, string ) );
			refreshList = true;
		}

		return o;
	}
}