<?php
namespace pocketmine\block;

use pocketmine\event\block\BlockSpreadEvent;
use pocketmine\item\Item;
use pocketmine\item\Tool;
use pocketmine\level\generator\object\TallGrass as TallGrassObject;
use pocketmine\level\Level;
use pocketmine\math\Vector3;
use pocketmine\Player;
use pocketmine\Server;
use pocketmine\utils\Random;

class Grass extends Solid{

	protected $id = self::GRASS;

	public function __construct(){

	}

	public function canBeActivated(){
		return true;
	}

	public function getName(){
		return "Grass";
	}

	public function getHardness(){
		return 0.6;
	}

	public function getToolType(){
		return Tool::TYPE_SHOVEL;
	}

	public function getDrops(Item $item){
		return [
			[Item::DIRT, 0, 1],
		];
	}

	/**
	 * @todo REMOVE THIS HACK
	*/
	private function fakeLightLvl(Block $block){
		($block->getSide(Vector3::SIDE_UP) instanceof Transparent || $block->getSide(Vector3::SIDE_UP) instanceof LightSource) ? $block->getSide(Vector3::SIDE_UP) instanceof LightSource ? $lightLvl = $block->getLightLevel() : $lightLvl = 9 : $lightLvl = 0;
		return $lightLvl;
	}

	public function onUpdate($type){
		if($type === Level::BLOCK_UPDATE_RANDOM){
			$block = $this;
			#$lightLvl = $this->getLevel()->getBlockLightAt($this->x, $this->y + 1, $this->z);
			$lightLvl = $this->fakeLightLvl($block); //TODO: REMOVE THIS HACK
			if($lightLvl < 4){
				Server::getInstance()->getPluginManager()->callEvent($ev = new BlockSpreadEvent($block, $this, new Dirt()));
				if(!$ev->isCancelled()){
					$this->getLevel()->setBlock($block, $ev->getNewState());
				}
			}elseif($lightLvl >= 9){
				for($l = 0; $l < 4; ++$l){
					$x = mt_rand($this->x - 1, $this->x + 1);
					$y = mt_rand($this->y - 2, $this->y + 2);
					$z = mt_rand($this->z - 1, $this->z + 1);
					$block = $this->getLevel()->getBlock(new Vector3($x, $y, $z));
					if($block->getId() === Block::DIRT && !$block->getSide(1) instanceof Liquid && $this->fakeLightLvl($this->getLevel()->getBlock(new Vector3($x, $y, $z))) >= 4){ //TODO: replace this hack with $this->getLevel()->getBlockLightAt($x, $y + 1, $z) >= 4
						Server::getInstance()->getPluginManager()->callEvent($ev = new BlockSpreadEvent($block, $this, new Grass()));
						if(!$ev->isCancelled()){
							$this->getLevel()->setBlock($block, $ev->getNewState());
						}
 					}
 				}
 			}
		}
	}

	public function onActivate(Item $item, Player $player = null){
		if($item->getId() === Item::DYE and $item->getDamage() === 0x0F){
			$item->count--;
			TallGrassObject::growGrass($this->getLevel(), $this, new Random(mt_rand()), 8, 2);

			return true;
		}elseif($item->isHoe()){
			$item->useOn($this);
			$this->getLevel()->setBlock($this, new Farmland());

			return true;
		}elseif($item->isShovel() and $this->getSide(1)->getId() === Block::AIR){
			$item->useOn($this);
			$this->getLevel()->setBlock($this, new GrassPath());

			return true;
		}

		return false;
	}
}