package net.marshyonline.MemUsage;
 
import org.bukkit.plugin.java.JavaPlugin;
import org.bukkit.command.*;
import java.text.DecimalFormat;
import java.util.logging.Logger;
import org.bukkit.ChatColor;
 
public class MemUsage extends JavaPlugin {
 
	//Version number
	private static final int version = 2;
	//Caculations
	private static final long K = 1024;
	private static final long M = K * K;
	private static final long G = M * K;
    private static final long T = G * K;
 
	public static String Convert(final long value){
	    final long[] dividers = new long[] { T, G, M, K, 1 };
	    final String[] units = new String[] { "TB", "GB", "MB", "KB", "B" };
	    if(value < 1)
	        throw new IllegalArgumentException("Invalid file size: " + value);
	    String result = null;
	    for(int i = 0; i < dividers.length; i++){ 
            final long divider = dividers[i]; 	       
                  if(value >= divider){
	            result = format(value, divider, units[i]);
	            break;
	        }
	    }
	    return result;
	}
 
	private static String format(final long value,
	    final long divider,
	    final String unit){
	    final double result =
	        divider > 1 ? (double) value / (double) divider : (double) value;
	    return new DecimalFormat("#,##0.#").format(result) + " " + unit;
	}
 
    //Ram Stuff
    public static Runtime runtime = Runtime.getRuntime();
	public static long memoryfree = runtime.freeMemory();
	public static long memorytotal = runtime.totalMemory();
	public static long memorymax = runtime.maxMemory();
	public static long highload = memoryfree+memorytotal;
 
		Logger log = Logger.getLogger("Minecraft");
 
			//onEnable and onDisable
			public void onEnable(){
				//new LoginListener(this);
 
				log.info("MemUsage V" + version + ", has been enabled!");
				log.info("MemUsage Plugin by Marshyonline");
				log.info("INFO: Total server RAM =" + Convert(memorytotal));
 
				}			
 
			public void onDisable(){
				log.info("MemUsage V" + version + ", has shutdown!");
				log.info("MemUsage Plugin by Marshyonline");
				}
 
public boolean onCommand(CommandSender sender, Command cmd, String commandLabel, String[] args){
if(cmd.getName().equalsIgnoreCase("ram")){ sender.sendMessage
(ChatColor.GREEN + "Memory in use: " + Convert(memoryfree+memorytotal) + "/" + Convert(memorymax));
	return true;
	     }
	return false;
             }
 
}