package mods.betterfoliage.client;

import java.io.File;
import java.util.Map;

import mods.betterfoliage.BetterFoliage;
import mods.betterfoliage.client.render.IRenderBlockDecorator;
import mods.betterfoliage.client.render.impl.EntityFXFallingLeaves;
import mods.betterfoliage.client.render.impl.RenderBlockBetterAlgae;
import mods.betterfoliage.client.render.impl.RenderBlockBetterCactus;
import mods.betterfoliage.client.render.impl.RenderBlockBetterCoral;
import mods.betterfoliage.client.render.impl.RenderBlockBetterGrass;
import mods.betterfoliage.client.render.impl.RenderBlockBetterLeaves;
import mods.betterfoliage.client.render.impl.RenderBlockBetterLilypad;
import mods.betterfoliage.client.render.impl.RenderBlockBetterMycelium;
import mods.betterfoliage.client.render.impl.RenderBlockBetterReed;
import mods.betterfoliage.client.render.impl.RenderBlocksBetterGrassSide;
import mods.betterfoliage.client.resource.LeafGenerator;
import mods.betterfoliage.client.resource.LeafParticleTextures;
import mods.betterfoliage.client.resource.LeafTextureEnumerator;
import mods.betterfoliage.client.resource.ReedGenerator;
import mods.betterfoliage.client.resource.ShortGrassGenerator;
import net.minecraft.block.Block;
import net.minecraft.client.Minecraft;
import net.minecraft.client.renderer.texture.TextureAtlasSprite;
import net.minecraft.util.ResourceLocation;
import net.minecraft.world.IBlockAccess;
import net.minecraft.world.World;
import net.minecraftforge.common.MinecraftForge;

import com.google.common.collect.Maps;

import cpw.mods.fml.client.registry.RenderingRegistry;
import cpw.mods.fml.common.FMLCommonHandler;

public class BetterFoliageClient {

	public static ResourceLocation missingTexture = new ResourceLocation("betterfoliage", "textures/blocks/missing_leaf.png");
	
	public static Map<Integer, IRenderBlockDecorator> decorators = Maps.newHashMap();
	public static LeafGenerator leafGenerator = new LeafGenerator();
	public static LeafParticleTextures leafParticles = new LeafParticleTextures(0);
	public static WindTracker wind = new WindTracker();
	
	public static BlockMatcher leaves = new BlockMatcher();
	public static BlockMatcher crops = new BlockMatcher();
	public static BlockMatcher dirt = new BlockMatcher();
	public static BlockMatcher grass = new BlockMatcher();
	
	public static void preInit() {
		FMLCommonHandler.instance().bus().register(new KeyHandler());
		
		BetterFoliage.log.info("Registering renderers");
		registerRenderer(new RenderBlockBetterCactus());
		registerRenderer(new RenderBlockBetterLilypad());
		registerRenderer(new RenderBlockBetterMycelium());
		registerRenderer(new RenderBlockBetterLeaves());
		registerRenderer(new RenderBlockBetterGrass());
		registerRenderer(new RenderBlockBetterReed());
		registerRenderer(new RenderBlockBetterAlgae());
		registerRenderer(new RenderBlockBetterCoral());
		registerRenderer(new RenderBlocksBetterGrassSide());

		MinecraftForge.EVENT_BUS.register(wind);
		FMLCommonHandler.instance().bus().register(wind);
		
		leaves.load(new File(BetterFoliage.configDir, "classesLeaves.cfg"), new ResourceLocation("betterfoliage:classesLeavesDefault.cfg"));
		MinecraftForge.EVENT_BUS.register(leaves);
		
		crops.load(new File(BetterFoliage.configDir, "classesCrops.cfg"), new ResourceLocation("betterfoliage:classesCropsDefault.cfg"));
		MinecraftForge.EVENT_BUS.register(crops);
		
		dirt.load(new File(BetterFoliage.configDir, "classesDirt.cfg"), new ResourceLocation("betterfoliage:classesDirtDefault.cfg"));
		MinecraftForge.EVENT_BUS.register(dirt);
		
		grass.load(new File(BetterFoliage.configDir, "classesGrass.cfg"), new ResourceLocation("betterfoliage:classesGrassDefault.cfg"));
		MinecraftForge.EVENT_BUS.register(grass);
		
		BetterFoliage.log.info("Registering texture generators");
		MinecraftForge.EVENT_BUS.register(leafGenerator);
		MinecraftForge.EVENT_BUS.register(leafParticles);
		MinecraftForge.EVENT_BUS.register(new LeafTextureEnumerator());
		
		MinecraftForge.EVENT_BUS.register(new ReedGenerator("bf_reed_bottom", missingTexture, true));
		MinecraftForge.EVENT_BUS.register(new ReedGenerator("bf_reed_top", missingTexture, false));
		MinecraftForge.EVENT_BUS.register(new ShortGrassGenerator("bf_shortgrass", missingTexture, false));
		MinecraftForge.EVENT_BUS.register(new ShortGrassGenerator("bf_shortgrass_snow", missingTexture, true));
		
		ShadersModIntegration.init();
	}

	public static boolean isLeafTexture(TextureAtlasSprite icon) {
		String resourceLocation = icon.getIconName();
		if (resourceLocation.startsWith("forestry:leaves/")) return true;
		return false;
	}
	
	public static int getRenderTypeOverride(IBlockAccess blockAccess, int x, int y, int z, Block block, int original) {
		// universal sign for DON'T RENDER ME!
		if (original == -1) return original;
		
		for (Map.Entry<Integer, IRenderBlockDecorator> entry : decorators.entrySet())
			if (entry.getValue().isBlockAccepted(blockAccess, x, y, z, block, original))
				return entry.getKey();
		
		return original;
	}
	
	public static void onRandomDisplayTick(Block block, World world, int x, int y, int z) {
		if (!BetterFoliage.config.fallingLeavesEnabled) return;
		if (!leaves.matchesID(block) || !world.isAirBlock(x, y - 1, z)) return;
		if (Math.random() > BetterFoliage.config.fallingLeavesChance.value) return;
		Minecraft.getMinecraft().effectRenderer.addEffect(new EntityFXFallingLeaves(world, x, y, z));
	}
	
	public static void registerRenderer(IRenderBlockDecorator decorator) {
		int renderId = RenderingRegistry.getNextAvailableRenderId();
		decorators.put(renderId, decorator);
		RenderingRegistry.registerBlockHandler(renderId, decorator);
		MinecraftForge.EVENT_BUS.register(decorator);
		decorator.init();
	}

}