package cz.vutbr.feec.project;


import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.File;
import java.io.IOException;
import java.nio.charset.Charset;
import java.nio.file.Files;

public class FileUtil {
	

	/**
	 * Helper class for reading and writing files.
	 */
	

	    /**
	     * The character set. UTF-8 works good for windows, mac and Umlaute.
	     */
	    private static final Charset CHARSET = Charset.forName("UTF-8");

	    /**
	     * Reads the specified file and returns the content as a String.
	     * 
	     * @param file
	     * @return
	     * @throws IOException thrown if an I/O error occurs opening the file
	     */
	    public static String readFile(File file) throws IOException {
	        StringBuffer stringBuffer = new StringBuffer();

	        BufferedReader reader = Files.newBufferedReader(file.toPath(), CHARSET);

	        String line = null;
	        while ((line = reader.readLine()) != null) {
	            stringBuffer.append(line);
	        }

	        reader.close();

	        return stringBuffer.toString();
	    }

	    /**
	     * Saves the content String to the specified file.
	     * 
	     * @param content
	     * @param file
	     * @throws IOException thrown if an I/O error occurs opening or creating the file
	     */
	    public static void saveFile(String content, File file) throws IOException {
	        BufferedWriter writer = Files.newBufferedWriter(file.toPath(), CHARSET);
	        writer.write(content, 0, content.length());
	        writer.close();
	    }
	

}
