package engine.utils;

import org.lwjgl.BufferUtils;

import java.io.*;
import java.nio.ByteBuffer;
import java.nio.channels.SeekableByteChannel;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.Paths;

public class FileUtils {

    private FileUtils() {

    }

    public static String loadAsString(String file){
        StringBuilder result = new StringBuilder();
        try {
            BufferedReader reader = new BufferedReader(new FileReader(file));
            String buffer = "";
            while ((buffer = reader.readLine()) != null) {
                result.append(buffer).append("\n");
            }
            reader.close();
        } catch (IOException e){
            e.printStackTrace();
            System.exit(1);
        }
        return result.toString();
    }

    public static ByteBuffer loadAsByteBuffer(String file) throws IOException{
        ByteBuffer buffer;

        Path path = Paths.get(file);

        try (SeekableByteChannel fc = Files.newByteChannel(path)) {
            buffer = BufferUtils.createByteBuffer((int) fc.size() + 1);
            while (fc.read(buffer) != -1) ;
        }

        buffer.flip();
        return buffer;
    }
}