package ru.sincore.tools.asc;

import java.io.*;
import java.util.Scanner;

/**
 * Create user: lh
 * Create date: 10/24/11 / 11:32 AM
 */
public class Main
{
    public static String fromAdcString(String adcString)
    {
        if (adcString == null)
            return null;

        return adcString.replaceAll("\\\\s", " ")
                   .replaceAll("\\\\n", "\n")
                   .replaceAll("\\\\\\\\", "\\\\")
                   .replaceAll("\\\\ ", "\\\\s")
                   .replaceAll("\\\\\\n", "\\\\n");
    }

    /**
     * @param args the command line arguments (Not used)
     */
    public static void main(String[] args)
    {
        System.out.println("Achtung! Application started!");

        if (args.length < 1)
        {
            System.out.println("Usage: asc <input filename> [<output filename>]");
            System.out.println("\t Where <input filename> is a name of file with normal text,");
            System.out.println("\t and <output filename> is a name of output file with adc compatible text.");
            return;
        }
        else
        {
            String outputFileName = args.length == 2 ? args[1] : "adc_" + args[0];

            try
            {
                File file = new File(outputFileName);
                if (!file.exists())
                {
                    System.out.println("File doesn't exists. Creating new...");

                     if (!file.createNewFile())
                     {
                         System.out.println("Error! File cannot be created.");
                         return;
                     }
                }

                Scanner scanner = new Scanner(new FileInputStream(args[0]), "UTF-8");

                FileOutputStream fos = new FileOutputStream(outputFileName);
                OutputStreamWriter out = new OutputStreamWriter(fos);

                int charBuffer;
                int offset = 0;

                StringBuilder text = new StringBuilder();

                while (scanner.hasNextLine())
                {
                    text.append(scanner.nextLine());
                }

                out.write(toAdcString(text.toString()));

                scanner.close();
                out.close();
            }
            catch (FileNotFoundException e)
            {
                e.printStackTrace();
            }
            catch (IOException e)
            {
                e.printStackTrace();
            }
        }

    }
}