package org.xeli.dataapk;

import java.io.File;

import java.io.FileOutputStream;

import java.io.IOException;

import java.io.InputStream;

import java.io.OutputStream;

import android.content.Context;

import android.content.res.AssetManager;

import android.util.Log;

public class AssetsToSDCard implements Runnable {

	public int INTERNAL_SDCARD = 0;

	public int EXTERNAL_SDCARD = 1;

	private Context context;

	private File outputDir;

	public AssetsToSDCard(Context c, boolean verifiedFreeSpace, String _outputDir){

		context = c;

		outputDir = c.getExternalFilesDir("Data").getParentFile();

	}

	private void copyFile(InputStream in, OutputStream out) throws IOException {

		byte[] buffer = new byte[1024];

		int read;

		while((read = in.read(buffer)) != -1){

			out.write(buffer, 0, read);

		}

	}

	private void visitAllFiles(AssetManager assManager, String[] childs, String file){

		try {

			InputStream in;

			OutputStream out;

			if(childs.length == 0){ //file = a non directory file

				in = assManager.open(file);

				File f = new File(outputDir, file);

				out = new FileOutputStream(f);

				copyFile(in, out);

			}else{ //file = a directory

				for(String s : childs){

					File f = new File(outputDir, file);

					f.mkdir();

					String tmp = file + '/' + s;

					visitAllFiles(assManager, assManager.list(tmp), tmp);

				}

			}

		} catch (IOException e) {

			//TODO handle correctly

			Log.e("fail", file);

			e.printStackTrace();

		}

	}

	public void run() {//Runs in it's own thread

		AssetManager assManager = context.getAssets();

		try {

			Log.e("DataDownloader", "Starting to copy files");

			visitAllFiles(assManager, assManager.list("Data"), "Data");

			Log.e("DataDownloader", "Done copying files");

		} catch (IOException e) {

			e.printStackTrace();

		}

	}

}