package appeng.me.cluster.implementations;

import java.util.Iterator;

import net.minecraft.tileentity.TileEntity;
import net.minecraft.world.World;
import net.minecraftforge.common.util.ForgeDirection;
import appeng.api.networking.IGrid;
import appeng.api.networking.IGridHost;
import appeng.api.networking.IGridNode;
import appeng.api.networking.events.MENetworkCraftingCpuChange;
import appeng.api.util.WorldCoord;
import appeng.me.cluster.IAECluster;
import appeng.me.cluster.IAEMultiBlock;
import appeng.me.cluster.MBCalculator;
import appeng.tile.crafting.TileCraftingTile;

public class CraftingCPUCalculator extends MBCalculator
{
	
	final TileCraftingTile tqb;

	public CraftingCPUCalculator(IAEMultiBlock t) {
		super( t );
		tqb = (TileCraftingTile) t;
	}

	@Override
	public boolean isValidTile(TileEntity te)
	{
		return te instanceof TileCraftingTile;
	}

	@Override
	public boolean checkMultiblockScale(WorldCoord min, WorldCoord max)
	{
		if ( max.x - min.x > 16 )
			return false;

		if ( max.y - min.y > 16 )
			return false;

		if ( max.z - min.z > 16 )
			return false;

		return true;
	}

	@Override
	public void updateTiles(IAECluster cl, World w, WorldCoord min, WorldCoord max)
	{
		CraftingCPUCluster c = (CraftingCPUCluster) cl;

		for (int x = min.x; x <= max.x; x++)
		{
			for (int y = min.y; y <= max.y; y++)
			{
				for (int z = min.z; z <= max.z; z++)
				{
					TileCraftingTile te = (TileCraftingTile) w.getTileEntity( x, y, z );
					te.updateStatus( c );
					c.addTile( te );
				}
			}
		}

		c.done();

		Iterator<IGridHost> i = c.getTiles();
		while (i.hasNext())
		{
			IGridHost gh = i.next();
			IGridNode n = gh.getGridNode( ForgeDirection.UNKNOWN );
			if ( n != null )
			{
				IGrid g = n.getGrid();
				if ( g != null )
				{
					g.postEvent( new MENetworkCraftingCpuChange( n ) );
					return;
				}
			}
		}
	}

	@Override
	public IAECluster createCluster(World w, WorldCoord min, WorldCoord max)
	{
		return new CraftingCPUCluster( min, max );
	}

	@Override
	public void disconnect()
	{
		tqb.disconnect( true );
	}

	@Override
	public boolean verifyInternalStructure(World w, WorldCoord min, WorldCoord max)
	{
		boolean storage = false;

		for (int x = min.x; x <= max.x; x++)
		{
			for (int y = min.y; y <= max.y; y++)
			{
				for (int z = min.z; z <= max.z; z++)
				{
					IAEMultiBlock te = (IAEMultiBlock) w.getTileEntity( x, y, z );

					if ( !te.isValid() )
						return false;

					if ( !storage && te instanceof TileCraftingTile )
						storage = ((TileCraftingTile) te).getStorageBytes() > 0;
				}
			}
		}

		return storage;
	}

}