FileTools

import java.awt.Component;
import java.io.File;
import java.io.IOException;
import java.nio.file.Files;

import javax.swing.JFileChooser;
import javax.swing.filechooser.FileNameExtensionFilter;

/**
 * 
 * @author Victoria
 *
 * Tools/methods to use to manipulate files: Load, Create new file, Save
 *
 */

public class FileTools {
	private static File file;
	private final static JFileChooser chooser = new JFileChooser();
	private static boolean isNew = true;
	
	/**
	 * Choose file to load
	 * 
	 * @throws IllegalArgumentException if not .html or .htm or .php
	 */
	public static void loadFile(Component comp) {
		FileNameExtensionFilter filter = new FileNameExtensionFilter("HTML & PHP files", "html", "htm", "php");
	    chooser.setFileFilter(filter);
		int returnVal = chooser.showOpenDialog(comp);
		if(returnVal == JFileChooser.APPROVE_OPTION) {
	       file = chooser.getSelectedFile();
	    }
		
		if (! filter.accept(chooser.getSelectedFile())) {
			throw new IllegalArgumentException();
	    } else {
	    	System.out.println(chooser.getSelectedFile().getName() + " was loaded");
	    	isNew = false;
	    }
	}
	
	/**
	 * Create a new HTML file
	 */
	public static void newFile() {
		isNew = true;
		try {
			// check if saved first
			file = Files.createTempFile(null, ".html").toFile();
		} catch (IOException e) {
			file = null;
			throw new IllegalArgumentException();
		}
	}
	
	/**
	 * Saves and writes to file
	 * 
	 * @param comp		JFrame displaying the panes
	 * @param newCode	edited code that will overwrite old file
	 */
	public static void saveFile(Component comp, String newCode) {
		if (isNew) {
			chooser.showSaveDialog(comp);
		} else {
			// TODO
			// find file location
			// write newCode to file
			// file already has a location --> filewriter
		}
	}
	
	/**
	 * Returns chosen file to display
	 */
	public static File getFile() {
		return file;
	}
}