package gtPlusPlus.xmod.galacticraft.handler;

import java.lang.reflect.Field;
import java.util.HashMap;
import java.util.LinkedHashMap;

import cpw.mods.fml.common.eventhandler.SubscribeEvent;
import net.minecraft.block.Block;
import net.minecraft.item.Item;
import gtPlusPlus.core.item.chemistry.RocketFuels;
import gtPlusPlus.core.lib.LoadedMods;
import gtPlusPlus.core.util.reflect.ReflectionUtils;
import gtPlusPlus.preloader.asm.AsmConfig;
import net.minecraftforge.event.entity.player.ItemTooltipEvent;
import net.minecraftforge.fluids.Fluid;

public class HandlerTooltip_GC {

	private static Item mItemBlock;
	private static Block mBlock;
	private static Class<?> oMainClass;
	private static Class<?> oFuelLoaderClass;
	private static HashMap <Integer, String> mFuelNames;
	
	static {
		mFuelNames = new LinkedHashMap<Integer, String>();
	}

	@SubscribeEvent
	public void onItemTooltip(ItemTooltipEvent event) {
		if (LoadedMods.GalacticraftCore && AsmConfig.enableGcFuelChanges) {

			if (mBlock == null) {
				try {
					Class<?> GCBlocks = ReflectionUtils.getClass("micdoodle8.mods.galacticraft.core.blocks.GCBlocks");
					if (GCBlocks != null) {
						oMainClass = GCBlocks;

						Class<?> GCFuelLoader = ReflectionUtils.getClass("micdoodle8.mods.galacticraft.core.blocks.BlockFuelLoader");

						if (GCFuelLoader != null) {
							oFuelLoaderClass = GCFuelLoader;
						}

						Field aField = ReflectionUtils.getField(oMainClass, "fuelLoader");
						if (aField != null) {
							Block aBlock = (Block) aField.get(null);
							if (aBlock != null) {
								mBlock = aBlock;
								mItemBlock = Item.getItemFromBlock(mBlock);
							}
						}
					}
				} catch (Throwable t) {
				}
			}	
			if (mFuelNames == null) {
				mFuelNames = new LinkedHashMap<Integer, String>();				
			}
			
			if (mFuelNames.isEmpty()) {
				for (int aMapKey : RocketFuels.mValidRocketFuels.keySet()) {
					Fluid aFuel = RocketFuels.mValidRocketFuels.get(aMapKey);
					if (aFuel != null) {
						mFuelNames.put(aMapKey, aFuel.getLocalizedName());
					}
				}
			}			
			if (mItemBlock != null && !mFuelNames.isEmpty()) {
				Item aTempItem = event.itemStack.getItem();
				Block aTempBlock = Block.getBlockFromItem(aTempItem);
				if (aTempItem == mItemBlock || oFuelLoaderClass.isInstance(aTempBlock) || event.itemStack.getUnlocalizedName().toLowerCase().contains("fuelloader")) {										
					for (int aMapKey : mFuelNames.keySet()) {
						String aFuel = mFuelNames.get(aMapKey);						
						if (aFuel != null) {
							event.toolTip.add("Tier "+(aMapKey+1)+": "+aFuel);
						}
					}							
				}
			}
		}
	}
}