package gregtech.api.interfaces.tileentity;

import static gregtech.api.enums.GT_Values.F;
import static gregtech.api.enums.GT_Values.T;

import gregtech.api.enums.SubTag;
import gregtech.api.util.GT_Utility;
import ic2.api.energy.tile.IEnergySink;
import net.minecraft.tileentity.TileEntity;
import net.minecraftforge.common.util.ForgeDirection;

/**
 * THIS IS GOING TO BE USED IN 1.8
 * 
 * Interface for getting Connected to the GregTech Energy Network.
 * 
 * This is all you need to connect to the GT Network.
 * IColoredTileEntity is needed for not connecting differently coloured Blocks to each other.
 * IHasWorldObjectAndCoords is needed for the InWorld related Stuff. @BaseTileEntity does implement most of that Interface.
 */
public interface IExperimentalEnergyTileEntity extends IColoredTileEntity, IHasWorldObjectAndCoords {
	/**
	 * Inject Energy Call for Electricity. Gets called by EnergyEmitters to inject Energy into your Block
	 * 
	 * Note: you have to check for @inputEnergyFrom because the Network won't check for that by itself.
	 * 
	 * @param aSide 0 - 5 = Vanilla Directions of YOUR Block the Energy gets inserted to. 6 = No specific Side (don't do Side checks for this Side)
	 * @return amount of used Amperes. 0 if not accepted anything.
	 */
	public long injectEnergy(SubTag aEnergyType, byte aSide, long aPrimary, long aSecondary);
	
	/** Sided Energy Input */
	public boolean inputEnergyFrom(SubTag aEnergyType, byte aSide);
	
	/** Sided Energy Output */
	public boolean outputsEnergyTo(SubTag aEnergyType, byte aSide);
	
	/** Utility for the Network */
	public static class Util {
		private static boolean RF_ENERGY = F, IC_ENERGY = F, CHECK_ALL = T;
		public static int RF_PER_EU = 4;
		
		private static void checkAvailabilities() {
			if (CHECK_ALL) {
				try {
					Class tClass = ic2.api.energy.tile.IEnergySink.class;
					tClass.getCanonicalName();
					IC_ENERGY = T;
				} catch(Throwable e) {/**/}
				CHECK_ALL = F;
			}
		}
		
	    /**
	     * Emits Energy to the adjacent Blocks. Also compatible with adjacent IC2 TileEntities when electric and RF TileEntities when RedstoneFlux.
	     * @return the amount of used secondary value.
	     */
		public static final long emitEnergyToNetwork(SubTag aEnergyType, long aPrimary, long aSecondary, IExperimentalEnergyTileEntity aEmitter) {
			long rUsedSecondary = 0;
			checkAvailabilities();
			for (byte i = 0, j = 0; i < 6 && aSecondary > rUsedSecondary; i++) if (aEmitter.outputsEnergyTo(aEnergyType, i)) {
				j = GT_Utility.getOppositeSide(i);
				TileEntity tTileEntity = aEmitter.getTileEntityAtSide(i);
				if (tTileEntity instanceof IExperimentalEnergyTileEntity) {
	    			if (aEmitter.getColorization() >= 0) {
						byte tColor = ((IExperimentalEnergyTileEntity)tTileEntity).getColorization();
						if (tColor >= 0 && tColor != aEmitter.getColorization()) continue;
					}
					rUsedSecondary+=((IExperimentalEnergyTileEntity)tTileEntity).injectEnergy(aEnergyType, j, aPrimary, aSecondary-rUsedSecondary);
	    		} else if (IC_ENERGY && aEnergyType == SubTag.ENERGY_ELECTRICITY && tTileEntity instanceof IEnergySink) {
	        		if (((IEnergySink)tTileEntity).acceptsEnergyFrom((TileEntity)aEmitter, ForgeDirection.getOrientation(j))) {
	        			while (aSecondary > rUsedSecondary && ((IEnergySink)tTileEntity).getDemandedEnergy() > 0 && ((IEnergySink)tTileEntity).injectEnergy(ForgeDirection.getOrientation(j), aPrimary, aPrimary) < aPrimary) rUsedSecondary++;
	        		}
	    		} 
			}
			return rUsedSecondary;
		}
	}
}