package fr.maxlego08.generation.popular;

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

import org.bukkit.Chunk;
import org.bukkit.Material;
import org.bukkit.World;
import org.bukkit.block.Block;
import org.bukkit.generator.BlockPopulator;

import fr.maxlego08.generation.utils.Position;

public class CavePopulor extends BlockPopulator {
	
	private void generateCave(World world, Random random, Chunk chunk, int x, int y, int z){
		
		List<Position> positions = new ArrayList<Position>();
		
		 int r = random.nextInt(120) + 50;
		 for(int a = 0; a != r; a++){
			 
			 int r2 = random.nextInt(5);
			 int r3 = random.nextInt(20);
			 
			 if (r2 == 0){			 
				 if (r3 <= 2) x--; 
				 if (r3 <= 6) x++; 
				 if (r3 <= 9) y--; 
				 if (r3 <= 12) y++; 
				 if (r3 <= 15) z--; 
				 if (r3 <= 20) z++; 				 
			 }			 
			 if (r2 == 1){			 
				 if (r3 <= 2) y--; 
				 if (r3 <= 6) z++; 
				 if (r3 <= 9) x--; 
				 if (r3 <= 12) y++; 
				 if (r3 <= 15) x--; 
				 if (r3 <= 20) z++; 				 
			 }
			 if (r2 == 2){			 
				 if (r3 <= 2) y--; 
				 if (r3 <= 6) z++; 
				 if (r3 <= 9) z--; 
				 if (r3 <= 12) y++; 
				 if (r3 <= 15) x--; 
				 if (r3 <= 20) x++; 				 
			 }
			 if (r2 == 3){			 
				 if (r3 <= 2) x--; 
				 if (r3 <= 6) x++; 
				 if (r3 <= 9) z--; 
				 if (r3 <= 12) z++; 
				 if (r3 <= 15) y--; 
				 if (r3 <= 20) y++; 				 
			 }
			 if (r2 >= 4){			 
				 if (r3 <= 2) y--; 
				 if (r3 <= 6) z++; 
				 if (r3 <= 9) y--; 
				 if (r3 <= 12) y++; 
				 if (r3 <= 15) y--; 
				 if (r3 <= 20) x++; 				 
			 }
			 positions.add(new Position(x, y, z));
		 }
		 
		 positions.forEach(position -> {
			 getPostions(world, random, chunk, position.getPosX(), position.getPosY(), position.getPosZ()).forEach(localPostion -> {
				 Block block = world.getBlockAt(localPostion.getPosX(), localPostion.getPosY(), localPostion.getPosZ());
				 if (!block.isEmpty() && !block.isLiquid() && !block.getType().equals(Material.BEDROCK)){
					 block.setType(Material.AIR);
				 }
			 });
		 });
		 
	}
	
	@SuppressWarnings("deprecation")
	private List<Position> getPostions(World world, Random random, Chunk chunk, int x, int y, int z){
		List<Position> positions = new ArrayList<Position>();
		
		int a = 0;
		int b = random.nextInt(200) + 20;
		while(a <= b){
			
			int k = random.nextInt(50);
			if (k == 0) y++;
			else if (k == 5) y++;
			else if (random.nextBoolean()){
				if (random.nextBoolean()) x++;
				else z++;
			}else if (random.nextBoolean()) x--;
			else z--;
			
			if (world.getBlockTypeIdAt(x, y, z) != 0){
				int c = 1 + random.nextInt(3);
				int d = c * c + 1;
				for(int x2 = -c; x2 <= c; x2++){
					for(int y2 = -c; y2 <= c; y2++){
						for(int z2 = -c; z2 <= c; z2++){
							if (world.getBlockTypeIdAt(x2, y2, z2) != 0) a++;
							else{
								
								positions.add(new Position(x + x2, y + y2, z + z2));
								
							}
						}
					}
				}
			}else a++;
			
		}
		return positions;
	}
	
	public void populate(World world, Random random, Chunk chunk) {
		
		int a = random.nextInt(5000);
		int b = random.nextInt(5000);
		
		if (a > b){
			
			int x = 4 + random.nextInt(8) + chunk.getX() * 16;
			int z = 4 + random.nextInt(8) + chunk.getX() * 16;
			int y = world.getHighestBlockYAt(x, z);
			if (y <= 16) y = 32;
			int newY = random.nextInt(y);
			generateCave(world, random, chunk, x, newY, z);
			
		}
		
		
		
	}

}