package ruirui.minecraft.livelyanimals.common;

import net.minecraft.client.renderer.entity.RenderPlayer;
import net.minecraft.entity.Entity;
import net.minecraft.entity.passive.EntityPig;
import net.minecraft.entity.player.EntityPlayer;
import net.minecraft.entity.player.EntityPlayerMP;
import net.minecraft.util.Vec3;
import net.minecraftforge.event.entity.EntityJoinWorldEvent;
import net.minecraftforge.event.entity.player.EntityInteractEvent;
import cpw.mods.fml.common.eventhandler.SubscribeEvent;

public class RiderHandler extends Thread {

	private EntityPlayer rider;
	private EntityPig pig;
	private static final double Y_OFFSET = 0.5D;

	public RiderHandler(Entity entity) {
		if (entity instanceof EntityPig) {
			this.pig = (EntityPig) entity;
		} else if (entity instanceof EntityPlayer) {
			this.rider = (EntityPlayer) entity;
		}
	}

	public RiderHandler() {

	}

	public void run() {
		int findEntityTimer = 0;
		//System.out.println("Flag 2.");

		if (pig != null) {
			//System.out.println("Flag 3.");
			while (rider == null) {
				this.rider = (EntityPlayer) pig.riddenByEntity;
				System.out.println("CheckRiderThread: Setting riddenByEntity...");
				try {
					sleep(100);
				} catch (InterruptedException e) {
					// TODO Auto-generated catch block
					e.printStackTrace();
				}

				findEntityTimer++;
				if (findEntityTimer >= 10) {
					System.out.println("Could not find rider within alloted time. Stopping...");
					break;
				}
			}

			if (pig != null && pig.riddenByEntity != null) {
				System.out.println("CheckRiderThread: riddenByEntity set.");
			}

		} else if (rider != null) {
			while (pig == null) {
				if (rider.ridingEntity != null && rider.ridingEntity instanceof EntityPig) {
					this.pig = (EntityPig) rider.ridingEntity;
				}

				System.out.println("CheckRiderThread: Setting ridingEntity...");
				try {
					sleep(100);
				} catch (InterruptedException e) {
					// TODO Auto-generated catch block
					e.printStackTrace();
				}

				findEntityTimer++;
				if (findEntityTimer >= 10) {
					System.out.println("Could not find mount within alloted time. Stopping...");
					break;
				}
			}

			if (rider != null && rider.ridingEntity != null) {
				System.out.println("CheckRiderThread: ridingEntity set.");
			}
		}

		if (rider != null && pig != null) {
			System.out.println("CheckRiderThread: A player is riding a pig!");
			//System.out.println("Rider coordinates: (" + rider.posX + ", " + rider.posY + ", " + rider.posZ + ")");
		    while (rider.isRiding() && !rider.isSneaking()) {
		    	adjustRiderPosition(rider);

		    	try {
					sleep(1);
				} catch (InterruptedException e) {
					// TODO Auto-generated catch block
					e.printStackTrace();
				}
		    }
		}
	}

	@SubscribeEvent
	public void checkForMount(EntityJoinWorldEvent event) {
		if (event.entity instanceof EntityPlayer) {
			rider = (EntityPlayer) event.entity;

			new RiderHandler(rider).start();
		}
	}

	@SubscribeEvent
	public void checkForRider(EntityInteractEvent event) {
		if (event.target instanceof EntityPig) {
			pig = (EntityPig) event.target;
			//System.out.println("Flag 1.");

			if (pig.getSaddled()) {
				new RiderHandler(pig).start();
			}
		}
	}

	public void adjustRiderPosition(EntityPlayer rider) {
		double px = pig.posX;
		double py = pig.posY + Y_OFFSET;
		double pz = pig.posZ;

		Vec3 pos = Vec3.createVectorHelper(0, 0, 0.2);
		pos.rotateAroundY((float) Math.toRadians(-pig.renderYawOffset));

		px -= pos.xCoord;
		py -= pos.yCoord;
		pz -= pos.zCoord;

		if (rider.ridingEntity != null) {
			rider.setLocationAndAngles(px, py, pz, rider.rotationYaw, rider.rotationPitch);
		}
	}
}