package tschipp.carryon.client.event;

import java.lang.reflect.Field;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;

import net.minecraft.client.Minecraft;
import net.minecraft.client.entity.AbstractClientPlayer;
import net.minecraft.client.entity.EntityPlayerSP;
import net.minecraft.client.gui.inventory.GuiContainer;
import net.minecraft.client.model.ModelPlayer;
import net.minecraft.client.renderer.GlStateManager;
import net.minecraft.client.renderer.OpenGlHelper;
import net.minecraft.client.renderer.RenderHelper;
import net.minecraft.client.settings.GameSettings;
import net.minecraft.client.settings.KeyBinding;
import net.minecraft.entity.Entity;
import net.minecraft.entity.player.EntityPlayer;
import net.minecraft.item.ItemStack;
import net.minecraft.util.EnumHand;
import net.minecraft.util.math.BlockPos;
import net.minecraft.world.World;
import net.minecraftforge.client.event.GuiOpenEvent;
import net.minecraftforge.client.event.MouseEvent;
import net.minecraftforge.client.event.RenderHandEvent;
import net.minecraftforge.client.event.RenderPlayerEvent;
import net.minecraftforge.fml.common.eventhandler.SubscribeEvent;
import net.minecraftforge.fml.common.gameevent.InputEvent;
import net.minecraftforge.fml.relauncher.Side;
import net.minecraftforge.fml.relauncher.SideOnly;
import tschipp.carryon.common.handler.RegistrationHandler;
import tschipp.carryon.common.item.ItemEntity;
import tschipp.carryon.common.item.ItemTile;

public class RenderEntityEvents
{

	/*
	 * Prevents the Player from scrolling
	 */
	@SideOnly(Side.CLIENT)
	@SubscribeEvent
	public void onScroll(MouseEvent event) throws IllegalArgumentException, IllegalAccessException
	{
		if (event.getDwheel() > 0 || event.getDwheel() < 0)
		{
			ItemStack stack = Minecraft.getMinecraft().thePlayer.getHeldItemMainhand();
			if (stack != null && stack.getItem() == RegistrationHandler.itemEntity)
			{
				if (ItemEntity.hasEntityData(stack))
					event.setCanceled(true);
			}
		}

	}

	/*
	 * Prevents the Player from opening Guis
	 */
	@SideOnly(Side.CLIENT)
	@SubscribeEvent
	public void onGuiOpen(GuiOpenEvent event)
	{
		if (event.getGui() != null)
		{
			boolean inventory = event.getGui() instanceof GuiContainer;
			EntityPlayer player = Minecraft.getMinecraft().thePlayer;
			if (player != null)
			{
				ItemStack stack = player.getHeldItem(EnumHand.MAIN_HAND);
				if (inventory && (stack != null ? stack.getItem() == RegistrationHandler.itemEntity && ItemEntity.hasEntityData(stack) : false))
				{
					event.setCanceled(true);
					Minecraft.getMinecraft().currentScreen = null;
				}
			}
		}
	}

	/*
	 * Prevents the Player from switching Slots
	 */
	@SideOnly(Side.CLIENT)
	@SubscribeEvent
	public void inputEvent(InputEvent event) throws NoSuchFieldException, SecurityException, IllegalArgumentException, IllegalAccessException, InvocationTargetException
	{
		GameSettings settings = Minecraft.getMinecraft().gameSettings;
		Field field = KeyBinding.class.getDeclaredFields()[7];
		field.setAccessible(true);
		ItemStack stack = Minecraft.getMinecraft().thePlayer.getHeldItemMainhand();
		EntityPlayer player = Minecraft.getMinecraft().thePlayer;
		if (stack != null ? stack.getItem() == RegistrationHandler.itemEntity && ItemEntity.hasEntityData(stack) : false)
		{
			if (settings.keyBindDrop.isPressed())
			{
				field.set(settings.keyBindDrop, false);
			}
			if (settings.keyBindSwapHands.isPressed())
			{
				field.set(settings.keyBindSwapHands, false);
			}
			for (KeyBinding keyBind : settings.keyBindsHotbar)
			{
				if (keyBind.isPressed())
				{
					field.set(keyBind, false);
				}
			}

		}

		int current = player.inventory.currentItem;

		if (player.getEntityData().hasKey("carrySlot") ? player.getEntityData().getInteger("carrySlot") != current : false)
			player.inventory.currentItem = player.getEntityData().getInteger("carrySlot");
	}

	/*
	 * Renders the Entity in First Person
	 */
	@SideOnly(Side.CLIENT)
	@SubscribeEvent
	public void renderHand(RenderHandEvent event)
	{

		World world = Minecraft.getMinecraft().theWorld;
		EntityPlayer player = Minecraft.getMinecraft().thePlayer;
		AbstractClientPlayer aplayer = (AbstractClientPlayer) player;
		ItemStack stack = player.getHeldItemMainhand();
		int perspective = Minecraft.getMinecraft().gameSettings.thirdPersonView;
		float partialticks = event.getPartialTicks();

		if (stack != null ? stack.getItem() == RegistrationHandler.itemEntity && ItemEntity.hasEntityData(stack) : false)
		{
			BlockPos pos = player.getPosition();
			Entity entity = ItemEntity.getEntity(stack, world);
			if (entity != null)
			{
				double d0 = player.lastTickPosX + (player.posX - player.lastTickPosX) * (double) partialticks;
				double d1 = player.lastTickPosY + (player.posY - player.lastTickPosY) * (double) partialticks;
				double d2 = player.lastTickPosZ + (player.posZ - player.lastTickPosZ) * (double) partialticks;

				entity.setPosition(d0, d1, d2);
				entity.rotationYaw = 0.0f;
				entity.prevRotationYaw = 0.0f;
				entity.setRotationYawHead(0.0f);

				float height = entity.height;
				float width = entity.width;
				float multiplier = height * width;

				GlStateManager.pushMatrix();
				GlStateManager.scale(.8, .8, .8);
				GlStateManager.rotate(180, 0, 1, 0);
				GlStateManager.translate(0.0, -height - .1, width + 0.1);
				GlStateManager.enableAlpha();

				if (perspective == 0)
				{
					RenderHelper.enableStandardItemLighting();
					Minecraft.getMinecraft().getRenderManager().setRenderShadow(false);
					Minecraft.getMinecraft().getRenderManager().renderEntityStatic(entity, 0.0f, false);
					Minecraft.getMinecraft().getRenderManager().setRenderShadow(true);

				}

				GlStateManager.disableAlpha();

				GlStateManager.scale(1, 1, 1);
				GlStateManager.popMatrix();

				RenderHelper.disableStandardItemLighting();
				GlStateManager.disableRescaleNormal();
				GlStateManager.setActiveTexture(OpenGlHelper.lightmapTexUnit);
				GlStateManager.disableTexture2D();
				GlStateManager.setActiveTexture(OpenGlHelper.defaultTexUnit);

				if (perspective == 0)
					event.setCanceled(true);

			}
		}

	}

	/*
	 * Renders the Block in Third Person
	 */
	@SideOnly(Side.CLIENT)
	@SubscribeEvent
	public void onPlayerRenderPost(RenderPlayerEvent.Post event)
	{
		World world = Minecraft.getMinecraft().theWorld;
		EntityPlayer player = event.getEntityPlayer();
		ModelPlayer modelPlayer = event.getRenderer().getMainModel();
		EntityPlayerSP clientPlayer = Minecraft.getMinecraft().thePlayer;
		ItemStack stack = player.getHeldItemMainhand();
		float partialticks = event.getPartialRenderTick();
		if (stack  != null ? stack.getItem() == RegistrationHandler.itemEntity && ItemEntity.hasEntityData(stack) : false)
		{
			Entity entity = ItemEntity.getEntity(stack, world);

			float rotation = -(player.prevRenderYawOffset + (player.renderYawOffset - player.prevRenderYawOffset) * partialticks);

			int perspective = Minecraft.getMinecraft().gameSettings.thirdPersonView;

			if (entity != null)
			{
				double d0 = player.lastTickPosX + (player.posX - player.lastTickPosX) * (double) partialticks;
				double d1 = player.lastTickPosY + (player.posY - player.lastTickPosY) * (double) partialticks;
				double d2 = player.lastTickPosZ + (player.posZ - player.lastTickPosZ) * (double) partialticks;

				double c0 = clientPlayer.lastTickPosX + (clientPlayer.posX - clientPlayer.lastTickPosX) * (double) partialticks;
				double c1 = clientPlayer.lastTickPosY + (clientPlayer.posY - clientPlayer.lastTickPosY) * (double) partialticks;
				double c2 = clientPlayer.lastTickPosZ + (clientPlayer.posZ - clientPlayer.lastTickPosZ) * (double) partialticks;

				double xOffset = d0 - c0;
				double yOffset = d1 - c1;
				double zOffset = d2 - c2;

				float height = entity.height;
				float width = entity.width;
				float multiplier = height * width;

				entity.setPosition(c0, c1, c2);
				entity.rotationYaw = 0.0f;
				entity.prevRotationYaw = 0.0f;
				entity.setRotationYawHead(0.0f);

				GlStateManager.pushMatrix();
				GlStateManager.translate(xOffset, yOffset, zOffset);
				GlStateManager.scale((10 - multiplier) * 0.08, (10 - multiplier) * 0.08, (10 - multiplier) * 0.08);
				GlStateManager.rotate(rotation, 0, 1f, 0);
				GlStateManager.translate(0.0, (height / 2) + -(height / 2) + 1, (width - 0.1) < 0.7 ? (width - 0.1) + (0.7 - (width - 0.1)) : (width - 0.1));

				if (player.isSneaking())
					GlStateManager.translate(0, -0.3, 0);

				Minecraft.getMinecraft().getRenderManager().setRenderShadow(false);
				Minecraft.getMinecraft().getRenderManager().renderEntityStatic(entity, 0.0f, false);
				Minecraft.getMinecraft().getRenderManager().setRenderShadow(true);

				GlStateManager.scale(1, 1, 1);
				GlStateManager.popMatrix();

			}
		}

	}

}