package com.redstoner.modules.lagchunks;

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

import org.bukkit.Bukkit;
import org.bukkit.Chunk;
import org.bukkit.Location;
import org.bukkit.World;
import org.bukkit.command.CommandSender;
import org.bukkit.entity.Player;

import com.nemez.cmdmgr.Command;
import com.nemez.cmdmgr.Command.AsyncType;
import com.redstoner.annotations.Version;
import com.redstoner.misc.Utils;
import com.redstoner.modules.Module;

@Version(major = 2, minor = 0, revision = 1, compatible = 2)
public class LagChunks implements Module
{
	private List<LaggyChunk> laggyChunks = new ArrayList<LaggyChunk>();
	
	private void scan(int amount)
	{
		laggyChunks.clear();
		for (World world : Bukkit.getServer().getWorlds())
		{
			for (Chunk chunk : world.getLoadedChunks())
			{
				if (chunk.getEntities().length > amount)
				{
					Location entLoc = chunk.getEntities()[0].getLocation();
					laggyChunks.add(new LaggyChunk(entLoc.getBlockX(), entLoc.getBlockY(), entLoc.getBlockZ(), world,
							chunk.getEntities().length));
				}
			}
		}
	}
	
	@Command(hook = "list_cmd")
	public void list(CommandSender sender)
	{
		if (laggyChunks.size() > 0)
		{
			Utils.sendModuleHeader(sender);
			for (LaggyChunk lc : laggyChunks)
			{
				Utils.sendMessage(sender, "", "§b[§a" + laggyChunks.indexOf(lc) + "§b]: §a" + lc.x + "§7, §a" + lc.y
						+ "§7, §a" + lc.z + " §7(" + lc.world.getName() + ") §a- §b" + lc.amount + " entities");
			}
			Utils.sendMessage(sender, "", "§2-------------------");
		}
		else
			Utils.sendMessage(sender, null, "Couldn't find any chunks with that many entities.");
	}
	
	@Command(hook = "scan_cmd", async = AsyncType.ALWAYS)
	public void scan_cmd(CommandSender sender, int amount)
	{
		scan(amount);
		list(sender);
	}
	
	@Command(hook = "tp")
	public void tp(CommandSender sender, int number)
	{
		Player player = (Player) sender;
		if (number < laggyChunks.size())
		{
			player.teleport(laggyChunks.get(number).getLocation());
			Utils.sendMessage(player, null, "§aTeleported to chunk " + number + "!");
		}
		else
		{
			Utils.sendErrorMessage(sender, null, "§4Invalid chunk number! Use §e/lc list §4to show laggy chunks!");
		}
	}
	
	// @noformat
	@Override
	public String getCommandString()
	{
		return "command lc {\n" + 
				"	perm utils.lagchunks;\n" + 
				"	\n" + 
				"	list {\n" + 
				"		run list_cmd;\n" + 
				"		help re-lists already scanned chunks;\n" + 
				"	}\n" + 
				"		\n" + 
				"	[int:amount] {\n" + 
				"		run scan_cmd amount;\n" + 
				"		help scans for laggy chunks;\n" + 
				"	}\n" + 
				"	\n" + 
				"	tp [int:number] {\n" + 
				"		run tp number;\n" + 
				"		help teleports to the specified chunk;\n" + 
				"		type player;\n" + 
				"	}\n" + 
				"}\n" + 
				"	";
	}
	// @format
}