package net.minecraft.src;

// Decompiled by Jad v1.5.8g. Copyright 2001 Pavel Kouznetsov.

// Jad home page: http://www.kpdus.com/jad.html

// Decompiler options: packimports(3) braces deadcode 



import java.io.*;

import java.util.List;

import java.util.logging.Logger;



public class SaveHandler

    implements ISaveHandler

{



    public SaveHandler(File file, String s, boolean flag)

    {

        field_22155_b = new File(file, s);

        field_22155_b.mkdirs();

        field_22158_c = new File(field_22155_b, "players");

        if(flag)

        {

            field_22158_c.mkdirs();

        }

        func_22154_d();

    }



    private void func_22154_d()

    {

        try

        {

            File file = new File(field_22155_b, "session.lock");

            DataOutputStream dataoutputstream = new DataOutputStream(new FileOutputStream(file));

            try

            {

                dataoutputstream.writeLong(field_22157_d);

            }

            finally

            {

                dataoutputstream.close();

            }

        }

        catch(IOException ioexception)

        {

            ioexception.printStackTrace();

            throw new RuntimeException("Failed to check session lock, aborting");

        }

    }



    protected File func_22153_a()

    {

        return field_22155_b;

    }



    public void func_22150_b()

    {

        try

        {

            File file = new File(field_22155_b, "session.lock");

            DataInputStream datainputstream = new DataInputStream(new FileInputStream(file));

            try

            {

                if(datainputstream.readLong() != field_22157_d)

                {

                    throw new MinecraftException("The save is being accessed from another location, aborting");

                }

            }

            finally

            {

                datainputstream.close();

            }

        }

        catch(IOException ioexception)

        {

            throw new MinecraftException("Failed to check session lock, aborting");

        }

    }



    public IChunkLoader func_22149_a(WorldProvider worldprovider)

    {

        if(worldprovider instanceof WorldProviderHell)

        {

            File file = new File(field_22155_b, "DIM-1");

            file.mkdirs();

            return new ChunkLoader(file, true);

        } else

        {

            return new ChunkLoader(field_22155_b, true);

        }

    }



    public WorldInfo func_22151_c()

    {

        File file = new File(field_22155_b, "level.dat");

        if(file.exists())

        {

            try

            {

                NBTTagCompound nbttagcompound = CompressedStreamTools.func_1138_a(new FileInputStream(file));

                NBTTagCompound nbttagcompound1 = nbttagcompound.getCompoundTag("Data");

                return new WorldInfo(nbttagcompound1);

            }

            catch(Exception exception)

            {

                exception.printStackTrace();

            }

        }

        return null;

    }



    public void func_22148_a(WorldInfo worldinfo, List list)

    {

        NBTTagCompound nbttagcompound = worldinfo.func_22305_a(list);

        NBTTagCompound nbttagcompound1 = new NBTTagCompound();

        nbttagcompound1.setTag("Data", nbttagcompound);

        try

        {

            File file = new File(field_22155_b, "level.dat_new");

            File file1 = new File(field_22155_b, "level.dat_old");

            File file2 = new File(field_22155_b, "level.dat");

            CompressedStreamTools.writeGzippedCompoundToOutputStream(nbttagcompound1, new FileOutputStream(file));

            if(file1.exists())

            {

                file1.delete();

            }

            file2.renameTo(file1);

            if(file2.exists())

            {

                file2.delete();

            }

            file.renameTo(file2);

            if(file.exists())

            {

                file.delete();

            }

        }

        catch(Exception exception)

        {

            exception.printStackTrace();

        }

    }



    public void func_22152_a(WorldInfo worldinfo)

    {

        NBTTagCompound nbttagcompound = worldinfo.func_22299_a();

        NBTTagCompound nbttagcompound1 = new NBTTagCompound();

        nbttagcompound1.setTag("Data", nbttagcompound);

        try

        {

            File file = new File(field_22155_b, "level.dat_new");

            File file1 = new File(field_22155_b, "level.dat_old");

            File file2 = new File(field_22155_b, "level.dat");

            CompressedStreamTools.writeGzippedCompoundToOutputStream(nbttagcompound1, new FileOutputStream(file));

            if(file1.exists())

            {

                file1.delete();

            }

            file2.renameTo(file1);

            if(file2.exists())

            {

                file2.delete();

            }

            file.renameTo(file2);

            if(file.exists())

            {

                file.delete();

            }

        }

        catch(Exception exception)

        {

            exception.printStackTrace();

        }

    }



    private static final Logger field_22156_a = Logger.getLogger("Minecraft");

    private final File field_22155_b;

    private final File field_22158_c;

    private final long field_22157_d = System.currentTimeMillis();



}