/*******************************************************************************
 * Copyright (c) 2011-2014 SirSengir.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the GNU Lesser Public License v3
 * which accompanies this distribution, and is available at
 * http://www.gnu.org/licenses/lgpl-3.0.txt
 *
 * Various Contributors including, but not limited to:
 * SirSengir (original work), CovertJaguar, Player, Binnie, MysteriousAges
 ******************************************************************************/
package forestry.plugins;

import java.util.ArrayList;
import java.util.List;

import net.minecraft.block.Block;
import net.minecraft.init.Items;
import net.minecraft.item.Item;
import net.minecraft.item.ItemBlock;
import net.minecraft.item.ItemStack;
import net.minecraft.util.MovingObjectPosition;

import net.minecraftforge.client.event.TextureStitchEvent;
import net.minecraftforge.common.MinecraftForge;
import net.minecraftforge.event.entity.player.FillBucketEvent;
import net.minecraftforge.fluids.Fluid;
import net.minecraftforge.fluids.FluidRegistry;
import net.minecraftforge.fluids.FluidStack;

import cpw.mods.fml.common.eventhandler.Event;
import cpw.mods.fml.common.eventhandler.SubscribeEvent;
import cpw.mods.fml.common.registry.GameRegistry;
import cpw.mods.fml.relauncher.Side;
import cpw.mods.fml.relauncher.SideOnly;

import forestry.api.core.ForestryAPI;
import forestry.api.fuels.FuelManager;
import forestry.api.fuels.GeneratorFuel;
import forestry.api.recipes.RecipeManagers;
import forestry.core.config.Config;
import forestry.core.config.Constants;
import forestry.core.fluids.BlockForestryFluid;
import forestry.core.fluids.Fluids;
import forestry.core.fluids.LiquidRegistryHelper;
import forestry.core.items.EnumContainerType;
import forestry.core.items.ItemLiquidContainer;
import forestry.core.items.ItemRegistryFluids;
import forestry.core.utils.Log;
import forestry.core.utils.StringUtil;

@Plugin(pluginID = "Fluids", name = "Fluids", author = "mezz", url = Constants.URL, unlocalizedDescription = "for.plugin.fluids.description")
public class PluginFluids extends ForestryPlugin {

	private static final List<Fluids> forestryFluidsWithBlocks = new ArrayList<>();

	public static ItemRegistryFluids items;

	private static void createFluid(Fluids forestryFluid) {
		if (forestryFluid.getFluid() == null && Config.isFluidEnabled(forestryFluid)) {
			String fluidName = forestryFluid.getTag();
			if (!FluidRegistry.isFluidRegistered(fluidName)) {
				Fluid fluid = new Fluid(fluidName).setDensity(forestryFluid.getDensity()).setViscosity(forestryFluid.getViscosity()).setTemperature(forestryFluid.getTemperature());
				FluidRegistry.registerFluid(fluid);
				createBlock(forestryFluid);
			}
		}
	}

	private static void createBlock(Fluids forestryFluid) {
		Fluid fluid = forestryFluid.getFluid();
		Block fluidBlock = fluid.getBlock();

		if (Config.isBlockEnabled(forestryFluid.getTag())) {
			if (fluidBlock == null) {
				fluidBlock = forestryFluid.makeBlock();
				if (fluidBlock != null) {
					fluidBlock.setBlockName("forestry.fluid." + forestryFluid.getTag());
					GameRegistry.registerBlock(fluidBlock, ItemBlock.class, StringUtil.cleanBlockName(fluidBlock));
					forestryFluidsWithBlocks.add(forestryFluid);
				}
			} else {
				GameRegistry.UniqueIdentifier blockID = GameRegistry.findUniqueIdentifierFor(fluidBlock);
				Log.severe("Pre-existing {0} fluid block detected, deferring to {1}:{2}, "
						+ "this may cause issues if the server/client have different mod load orders, "
						+ "recommended that you disable all but one instance of {0} fluid blocks via your configs.", fluid.getName(), blockID.modId, blockID.name);
			}
		}
	}

	@Override
	public void registerItemsAndBlocks() {
		for (Fluids fluidType : Fluids.forestryFluids) {
			createFluid(fluidType);
		}

		items = new ItemRegistryFluids();
	}

	@Override
	public void preInit() {
		MinecraftForge.EVENT_BUS.register(getTextureHook());
		MinecraftForge.EVENT_BUS.register(getFillBucketHook());
	}

	@Override
	public void doInit() {
		for (Fluids fluidType : Fluids.values()) {
			if (fluidType.getFluid() == null) {
				continue;
			}

			for (EnumContainerType type : EnumContainerType.values()) {
				ItemLiquidContainer container = items.getContainer(type, fluidType);
				if (container == null) {
					continue;
				}

				LiquidRegistryHelper.registerLiquidContainer(fluidType, container.getItemStack());
			}

			for (ItemStack filledContainer : fluidType.getOtherContainers()) {
				LiquidRegistryHelper.registerLiquidContainer(fluidType, filledContainer);
			}
		}

		if (RecipeManagers.squeezerManager != null) {
			RecipeManagers.squeezerManager.addContainerRecipe(10, items.canEmpty.getItemStack(), PluginCore.items.ingotTin.getItemStack(), 0.05f);
			RecipeManagers.squeezerManager.addContainerRecipe(10, items.waxCapsuleEmpty.getItemStack(), PluginCore.items.beeswax.getItemStack(), 0.10f);
			RecipeManagers.squeezerManager.addContainerRecipe(10, items.refractoryEmpty.getItemStack(), PluginCore.items.refractoryWax.getItemStack(), 0.10f);
		}

		FluidStack ethanol = Fluids.ETHANOL.getFluid(1);
		GeneratorFuel ethanolFuel = new GeneratorFuel(ethanol, (int) (32 * ForestryAPI.activeMode.getFloatSetting("fuel.ethanol.generator")), 4);
		FuelManager.generatorFuel.put(ethanol.getFluid(), ethanolFuel);

		FluidStack biomass = Fluids.BIOMASS.getFluid(1);
		GeneratorFuel biomassFuel = new GeneratorFuel(biomass, (int) (8 * ForestryAPI.activeMode.getFloatSetting("fuel.biomass.generator")), 1);
		FuelManager.generatorFuel.put(biomass.getFluid(), biomassFuel);
	}

	public static class MissingFluidException extends RuntimeException {
		public MissingFluidException(String tag) {
			super("Fluid '" + tag + "' was not found. Please check your configs.");
		}
	}

	@Override
	public void postInit() {
		for (Fluids fluidType : Fluids.forestryFluids) {
			if (fluidType.getFluid() == null && Config.isFluidEnabled(fluidType)) {
				throw new MissingFluidException(fluidType.getTag());
			}
		}
	}

	public static class TextureHook {
		@SubscribeEvent
		@SideOnly(Side.CLIENT)
		public void textureHook(TextureStitchEvent.Post event) {
			if (event.map.getTextureType() == 0) {
				for (Fluids fluidType : forestryFluidsWithBlocks) {
					Fluid fluid = fluidType.getFluid();
					Block fluidBlock = fluidType.getBlock();
					if (fluid != null && fluidBlock != null) {
						fluid.setIcons(fluidBlock.getBlockTextureFromSide(1), fluidBlock.getBlockTextureFromSide(2));
					}
				}
			}
		}
	}

	private static Object getTextureHook() {
		return new TextureHook();
	}

	public static class FillBucketHook {
		@SubscribeEvent
		public void fillBucket(FillBucketEvent event) {
			ItemStack bucket = event.current;
			if (bucket == null || bucket.getItem() != Items.bucket) {
				return;
			}
			
			MovingObjectPosition movingObjectPosition = event.target;
			int x = movingObjectPosition.blockX;
			int y = movingObjectPosition.blockY;
			int z = movingObjectPosition.blockZ;
			Block targetedBlock = event.world.getBlock(x, y, z);
			if (targetedBlock instanceof BlockForestryFluid) {
				Item filledBucket = ItemLiquidContainer.getExistingBucket(targetedBlock);
				if (filledBucket != null) {
					event.result = new ItemStack(filledBucket);
					event.setResult(Event.Result.ALLOW);
					if (!event.world.isRemote) {
						event.world.setBlockToAir(x, y, z);
					}
				}
			}
		}
	}

	private static Object getFillBucketHook() {
		return new FillBucketHook();
	}
}