package dk.thoerup.bukkit.hoeruputils;

import java.util.HashSet;
import java.util.Set;
import java.util.Random;

import org.bukkit.Material;
import org.bukkit.block.Block;
import org.bukkit.command.Command;
import org.bukkit.command.CommandExecutor;
import org.bukkit.command.CommandSender;
import org.bukkit.entity.Player;
import org.bukkit.event.block.BlockDamageEvent;
import org.bukkit.event.block.BlockListener;
import org.bukkit.event.player.PlayerListener;
import org.bukkit.event.player.PlayerQuitEvent;
import org.bukkit.inventory.ItemStack;

public class PowerMiner extends BlockListener implements CommandExecutor {
	
	
	Random rand = new Random(); 
	
	Set<String> miners = new HashSet<String>(); 

	@Override
	public boolean onCommand(CommandSender sender, Command command, String label, String[] args) {
		if (!sender.isOp())
			return false;
		if (! (sender instanceof Player) )
			return false;
		
		Player p  = (Player) sender;
		if (miners.contains(p.getName())) {
			miners.remove( p.getName() );
			p.sendMessage("PowerMiner disabled");
		} else {
			miners.add( p.getName() );
			p.sendMessage("PowerMiner enabled - go dig some tunnels (with a feather)");
		}
		
		
		return true;
	}

	
	protected ItemStack getDropItems(Block b) {
		switch (b.getTypeId()) {
		case 1: //stone drops cobblestone
			return new ItemStack(4,1);
		case 2:
		case 3:			
			return null; //instabreak already drops dirt
		case 13:
			return null; //don't drop gravel
		
		case 16: //coal ore drops coal
			return new ItemStack(263,1);	
		case 56: //diamond ore drops diamond
			return new ItemStack(264,1);
		case 73:
		case 74:
			return new ItemStack(331,4); //redstone ore (both glowing and non-glowing) drops 4 redstone	
		default:
			return new ItemStack(b.getTypeId(), 1); 
		}
	}
	
	public void onBlockDamage(BlockDamageEvent event) {
		Player p = event.getPlayer();
		
		if (! p.isOp() ) 
			return;
		
		if ( miners.contains(p.getName()) ) {
			if (p.getItemInHand().getType() == Material.FEATHER) {
				event.setInstaBreak(true);
				
				Block b = event.getBlock();
				ItemStack items = getDropItems(b);
				
				if (items != null) {				
					b.getWorld().dropItemNaturally(b.getLocation(), items);
				}
				
			}
		}
		
	}
	
	public class PlayerQuitListener extends PlayerListener {
		@Override
		public void onPlayerQuit(PlayerQuitEvent event) {
			Player p = event.getPlayer();
			
			if (miners.contains(p.getName())) {
				miners.remove( p.getName() );
			}
		}
	}

}