package org.jzy3d.io;

import java.io.BufferedInputStream;
import java.io.DataInputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStreamWriter;
import java.io.Writer;
import java.util.ArrayList;
import java.util.List;

public class SimpleFile {
    public static void write(String content, String file) throws Exception {
        createParentFoldersIfNotExist(file);
        Writer out = new OutputStreamWriter(new FileOutputStream(file), "UTF-8");
        out.write(content);
        out.close();
    }

    public static void createParentFoldersIfNotExist(String file) {
        File parent = (new File(file)).getParentFile();
        if (parent != null && !parent.exists())
            parent.mkdirs();
    }

    public static List readFile(File file) throws IOException {
    	return read(file.getAbsolutePath());
    }
    
    public static List read(String filename) throws IOException {
        List output = new ArrayList();
        File file = new File(filename);
        FileInputStream fis = new FileInputStream(file);
        BufferedInputStream bis = new BufferedInputStream(fis);
        DataInputStream dis = new DataInputStream(bis);
        
        while(dis.available() != 0){
            output.add(dis.readLine());
        }
        

        fis.close();
        bis.close();
        dis.close();
        return output;
    }

    public static String readAsString(String filename) throws Exception {
        return readAsString(filename, "\n");
    }

    public static String readAsString(String filename, String newLineString) throws IOException {
        StringBuffer sb = new StringBuffer();
        File file = new File(filename);
        FileInputStream fis = new FileInputStream(file);
        BufferedInputStream bis = new BufferedInputStream(fis);
        DataInputStream dis = new DataInputStream(bis);
        while (dis.available() != 0) {
            sb.append((new StringBuilder()).append(dis.readLine()).append(newLineString));
        }
        fis.close();
        bis.close();
        dis.close();
        return sb.toString();
    }

    /** 
     * Return true if file1 is younger than file2, meaning it was last modified after file2.
     * Always return false if file2 does not exist.
     * Always return true if file1 does not exist.
     */
    public static boolean isYounger(String file1, String file2) throws IOException {
        File f1 = new File(file1);
        File f2 = new File(file2);
        if (!f2.exists())
            return false;
        if (!f1.exists())
            return true;
        else
            return f1.lastModified() > f2.lastModified();
    }
}