package de.marcelkapfer.c.morseconverter.update;

import java.io.BufferedReader;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStreamReader;
import java.net.MalformedURLException;
import java.net.URL;
import java.nio.channels.Channels;
import java.nio.channels.ReadableByteChannel;
import java.nio.file.Files;
import java.util.logging.FileHandler;

/*
    This is a Java application for converting writtenMorse and normal morse code.
    Copyright (C) 2014-2015  Marcel Michael Kapfer

    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    any later version.
    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program.  If not, see <http://www.gnu.org/licenses/>.

    Marcel Michael Kapfer
    marcelmichaelkapfer@yahoo.co.nz

 */
public class Update {

    private static URL update;

    public static boolean isConnected(String url){
        try {
            update = new URL(url);
            update.openStream();
            return true;
        } catch (Exception e) {
            e.printStackTrace();
            return false;
        }
    }

    public static boolean update(String path, String filename){
        try {
            ReadableByteChannel updateChannel = Channels.newChannel(update.openStream());
            FileOutputStream updateOutputStream = new FileOutputStream(path + filename);
            updateOutputStream.getChannel().transferFrom(updateChannel, 0, Long.MAX_VALUE);
            return true;
        } catch (Exception e) {
            e.printStackTrace();
            return false;
        }
    }

    public static int getLatestVersion(String versionFile, int currentVersion){
        int latestVersion = currentVersion;
        try {
            URL versionURL = new URL(versionFile);
            BufferedReader versionReader = new BufferedReader(new InputStreamReader(versionURL.openStream()));
            latestVersion = Integer.valueOf(versionReader.readLine());
        } catch (MalformedURLException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        }
        return latestVersion;
    }

}