/**
 * Phonegap backup plugin for Android
 * Luis Balam 2012
 * @version 0.0.9
 *
 */

package org.opencorebanking.plugins;

import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;

//import android.os.*;
//import android.net.*;
import java.io.*;
//import java.util.*;
import android.util.*;

import org.apache.cordova.api.Plugin;
import org.apache.cordova.api.PluginResult;

public class LocalBackup extends Plugin {


    @Override
    public PluginResult execute(String action, JSONArray args, String callbackId) {
        try {
            JSONObject jo   = args.getJSONObject(0);
            String pkg      = jo.getString("packageName");
            String dest     = jo.getString("backupName");
            //Log.e("Web Console", action);
            try {
                if( action.equals("backup")){
                    goBackup(pkg, dest);
                } else {
                    goRestore(pkg, dest);
                }
            } catch (FileNotFoundException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            }
            return new PluginResult(PluginResult.Status.OK);
        } catch (JSONException e) {
            return new PluginResult(PluginResult.Status.JSON_EXCEPTION);
        }
    }

    private boolean goBackup(String strPkg, String strOut) throws FileNotFoundException{
        String DBPATH   = "/data/data/"  + strPkg + "/app_database/file__0/";
        String DBNAME   = "0000000000000001.db";
        String myPath   = DBPATH + DBNAME;
        Boolean result  = false;
        //Open your local db as the input stream

        InputStream myInput = new FileInputStream(myPath);

        // Path to the just created empty db
        String outFileName  = strOut;

        //Open the empty db as the output stream
        OutputStream myOut;
        try {
            myOut = new FileOutputStream(outFileName);
            //transfer bytes from the inputfile to the outputfile
            byte[] buffer   = new byte[1024];
            int length;
            while ((length  = myInput.read(buffer))>0){
                myOut.write(buffer, 0, length);
            }
            //Close the streams
            myOut.flush();
            myOut.close();
            myInput.close();
            result = true;
        } catch (FileNotFoundException e) {
            // Auto-generated catch block
            e.printStackTrace();
            result  = false;
        } catch (IOException e) {
            // Auto-generated catch block
            e.printStackTrace();
            result  = false;
        }
        return result;
    }
    private boolean goRestore(String strPkg, String strIn) throws FileNotFoundException{
        String DBPATH   = "/data/data/"  + strPkg + "/app_database/file__0/";
        String DBNAME   = "0000000000000001.db";
        String myPath   = DBPATH + DBNAME;
        Boolean result  = false;
        //Open your local db as the input stream

        InputStream myInput = new FileInputStream(strIn); //myPath);

        // Path to the just created empty db
        String outFileName  = myPath; //strIn;

        //Open the empty db as the output stream
        OutputStream myOut;
        try {
            myOut = new FileOutputStream(outFileName);
            //transfer bytes from the inputfile to the outputfile
            byte[] buffer   = new byte[1024];
            int length;
            while ((length  = myInput.read(buffer))>0){
                myOut.write(buffer, 0, length);
            }
            //Close the streams
            myOut.flush();
            myOut.close();
            myInput.close();
            result = true;
        } catch (FileNotFoundException e) {
            // Auto-generated catch block
            e.printStackTrace();
            result  = false;
        } catch (IOException e) {
            // Auto-generated catch block
            e.printStackTrace();
            result  = false;
        }
        return result;
    }
}