CustomNPC-Plus/src/main/java/noppes/npcs/controllers/GlobalDataController.java

package noppes.npcs.controllers;

import net.minecraft.nbt.CompressedStreamTools;
import net.minecraft.nbt.NBTTagCompound;
import noppes.npcs.CustomNpcs;

import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;

import static noppes.npcs.util.CustomNPCsThreader.customNPCThread;

public class GlobalDataController {
	public static GlobalDataController Instance;
	private int itemGiverId = 0;

	public GlobalDataController(){
		Instance = this;
		load();
	}

	private void load(){
		File saveDir = CustomNpcs.getWorldSaveDirectory();
		try {
	        File file = new File(saveDir, "global.dat");
	        if(file.exists()){
	        	loadData(file);
	        }
		} catch (Exception e) {
			try {
		        File file = new File(saveDir, "global.dat_old");
		        if(file.exists()){
		        	loadData(file);
		        }

			} catch (Exception ee) {
				ee.printStackTrace();
			}
		}
	}
	private void loadData(File file) throws Exception {
        NBTTagCompound nbttagcompound1 = CompressedStreamTools.readCompressed(new FileInputStream(file));
        itemGiverId = nbttagcompound1.getInteger("itemGiverId");
	}
	public void saveData(){
        customNPCThread.execute(() -> {
            try {
                File saveDir = CustomNpcs.getWorldSaveDirectory();

                NBTTagCompound nbttagcompound = new NBTTagCompound();
                nbttagcompound.setInteger("itemGiverId", itemGiverId);

                File file = new File(saveDir, "global.dat_new");
                File file1 = new File(saveDir, "global.dat_old");
                File file2 = new File(saveDir, "global.dat");
                CompressedStreamTools.writeCompressed(nbttagcompound, 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 e) {
                e.printStackTrace();
            }
        });
	}
	public int incrementItemGiverId(){
		itemGiverId++;
        saveData();
		return itemGiverId;
	}
}