/*
 * File: fileDialog.java
 * 		This file is part of Tico, an application to create and	perform
 * 		interactive communication boards to be used by people with
 * 		severe motor disabilities.
 * 
 * Author: Eduardo Ferrer
 * 
 * Date: Nov, 2011
 * 
 * Company: Universidad de Zaragoza, CPS, DIIS
 * 
 * License:
 * 		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 (at your option) 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/>. 
 */

package android.TICO;

import java.io.BufferedOutputStream;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.util.Enumeration;
import java.util.zip.ZipEntry;
import java.util.zip.ZipFile;


/**
 * The class that manage the files unzip when we load a project in a temp folder
 * and the deleting of the temp files
 */

public class readProject {
	private final static int ZIP_BUFFER_SIZE = 8192;//2048;
	
	// Unzips a file to a directory
	
	public static void loadZip(File zipFile,File tempDirectory) throws IOException {
		
		unzip(zipFile, tempDirectory);
	}
	
	
	
	public static void borrarTmp(File fich){
		if(fich.isDirectory()){
			File[] contenido= fich.listFiles();
			for(int i=0;i<contenido.length;i++){
				borrarTmp(contenido[i]);
			}
		}
		fich.delete();
	}
	
	
	private static void unzip(File srcFile, File dstDir) throws IOException {
		// Create buffer
		byte[] buffer = new byte[ZIP_BUFFER_SIZE];
		int bytes;
		// Get zip file entries
		ZipFile zipFile = new ZipFile(srcFile);
		Enumeration entries = zipFile.entries();
		// For each entry
		while (entries.hasMoreElements()) {
			ZipEntry entry = (ZipEntry)entries.nextElement();
			// If the entry is a directory, create it
			if (entry.isDirectory()) {
				File newDirectory = new File(entry.getName());
				if (!newDirectory.exists())
					newDirectory.mkdirs();
				continue;
			}
			// If the entry is a file, get it
			File newFile = new File(dstDir, entry.getName().replace('\\', '/'));
			// Check if its directory exists and create it if necessary
			File newFileDir = newFile.getParentFile();
			if (!newFileDir.exists())
				newFileDir.mkdirs();
			// Create the input and output streams
			InputStream in = zipFile.getInputStream(entry);
			OutputStream out = new BufferedOutputStream(new FileOutputStream(newFile));
			// Copy one into the other
			while ((bytes = in.read(buffer)) >= 0)
				out.write(buffer, 0, bytes);
			// Close input and output streams
			in.close();
			out.close();
		}
		// Close the zip file
		zipFile.close();
	}
}