package NET.worlds.core;

import NET.worlds.console.Main;
import NET.worlds.console.MainCallback;
import NET.worlds.console.MainTerminalCallback;
import java.io.PrintStream;

public class SystemInfo implements MainCallback, MainTerminalCallback {
   private static SystemInfo instance = new SystemInfo();
   private static final com.sun.management.OperatingSystemMXBean operatingSystemMXBean =
      (com.sun.management.OperatingSystemMXBean) java.lang.management.ManagementFactory.getOperatingSystemMXBean();
   private long _lastFrame = 0L;
   private long _lastReport = 0L;
   private long _min;
   private long _max;
   private long _avg;
   private long _avgCount = 0L;

   private SystemInfo() {
      Main.register(this);
   }

   @Override
   public void mainCallback() {
      long curTime = Std.getFastTime();
      long frameTime = curTime - this._lastFrame;
      if (frameTime < this._min) {
         this._min = frameTime;
      }

      if (frameTime > this._max) {
         this._max = frameTime;
      }

      this._avg += frameTime;
      this._avgCount++;
      if (curTime - this._lastReport > 300000L) {
         if (this._lastFrame != 0L) {
            System.out.println(logTime() + "Frame rate report:" + this._min + "/" + this._avg / this._avgCount + "/" + this._max);
         }

         this._min = 10000L;
         this._max = 0L;
         this._avg = 0L;
         this._avgCount = 0L;
         this._lastReport = curTime;
      }

      this._lastFrame = curTime;
   }

   @Override
   public void terminalCallback() {
      Main.unregister(this);
      if (this._avgCount != 0L) {
         System.out.println(logTime() + "Frame rate report:" + this._min + "/" + this._avg / this._avgCount + "/" + this._max);
      }
   }

   public static void Record(PrintStream out) {
      out.println("DISK REPORT:");
      recordPath(out, "Windows SYSTEM path", GetSystemDirectory());
      recordPath(out, "Current Working Directory", GetCurrentDirectory());
      out.println("");
      out.println("JAVA MEMORY:");
      out.println(logTime() + "\t Free memory: " + Runtime.getRuntime().freeMemory());
      out.println(logTime() + "\tTotal memory: " + Runtime.getRuntime().totalMemory());
      out.println("");
      out.println("WINDOWS MEMORY:");
      out.println(logTime() + "\tTotal Physical Memory: " + GetTotalPhysicalMemory());
      out.println(logTime() + "\tAvail Physical Memory: " + GetAvailPhysicalMemory());
      out.println(logTime() + "\t   Total Paged Memory: " + GetTotalPagedMemory());
      out.println(logTime() + "\t   Avail Paged Memory: " + GetAvailPagedMemory());
      out.println("");
      out.println(logTime() + "Java Properties: " + System.getProperties());
      out.println(logTime() + "Number of CPUs: " + GetNumberOfProcessors());
      out.println(logTime() + "Processor Type: " + GetProcessorType());
      out.println(logTime() + "Platform  Type: " + GetPlatformID());
   }

   private static void recordPath(PrintStream out, String comment, String path) {
      out.println(logTime() + comment + ": " + path);
      if (path != null) {
         String drive = path.substring(0, 2);
         out.println(logTime() + "\tFree disk space (" + drive + "): " + GetDiskFreeSpace(drive + "\\") + " KB");
      }
   }

   public static String logTime() {
      return "[" + Std.getRealTime() + "] ";
   }

   public static int GetDiskFreeSpace(String var0) {
      try {
         java.io.File file = (var0 != null) ? new java.io.File(var0) : new java.io.File(".");
         
         return (int)(file.getFreeSpace() / 1024L);
      } catch (Exception e) {
         return 0;
      }
   }

   public static int GetDiskFreeSpace() {
      return GetDiskFreeSpace(null);
   }

   public static String GetSystemDirectory() {
      return System.getProperty("java.home", "");
   }

   public static String GetCurrentDirectory() {
      return System.getProperty("user.dir", "");
   }

   public static int GetTotalPhysicalMemory() {
      return (int)(operatingSystemMXBean.getTotalPhysicalMemorySize() / 1024L);
   }

   public static int GetAvailPhysicalMemory() {
      return (int)(operatingSystemMXBean.getFreePhysicalMemorySize() / 1024L);
   }

   public static int GetTotalPagedMemory() {
      return (int)(operatingSystemMXBean.getTotalSwapSpaceSize() / 1024L);
   }

   public static int GetAvailPagedMemory() {
      return (int)(operatingSystemMXBean.getFreeSwapSpaceSize() / 1024L);
   }

   public static String GetPlatformID() {
      return System.getProperty("os.name", "Unknown") + " " + System.getProperty("os.version", "");
   }

   public static int GetNumberOfProcessors() {
      return Runtime.getRuntime().availableProcessors();
   }

   public static String GetProcessorType() {
      return System.getProperty("os.arch", "Unknown");
   }
}