package academic.th.mMySQL;

import android.app.ProgressDialog;
import android.content.Context;
import android.os.AsyncTask;
import android.widget.Spinner;
import android.widget.Toast;

import java.io.BufferedInputStream;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;

/**
 * Created by Sistemas on 09/09/2016.
 */
public class Downloader extends AsyncTask<Void,Void,String> {


    Context c;
    String urlAddress;
    Spinner spinertrimestre;
    ProgressDialog pd;

    public Downloader(Context c, String urlAddress, Spinner spinertrimestre) {
        this.c = c;
        this.urlAddress = urlAddress;
        this.spinertrimestre = spinertrimestre;
    }

    @Override
    protected void onPreExecute() {
        super.onPreExecute();

        pd=new ProgressDialog(c);
        pd.setTitle("Conexion");
        pd.setMessage("Conectando...Espere Por Favor");
        pd.show();

    }

    @Override
    protected void onPostExecute(String s) {
        super.onPostExecute(s);

        pd.dismiss();

        if(s==null){
            Toast.makeText(c,"No se establecio la conexion, revise los datos en configuraciones.",Toast.LENGTH_SHORT).show();
        }else{
            /*Toast.makeText(c,"Success",Toast.LENGTH_SHORT).show();*/

            //call parser class to parse/
            DataParser parser=new DataParser(c,spinertrimestre,s);
            parser.execute();
        }
    }


    @Override
    protected String doInBackground(Void... params) {
        return this.downloadData();
    }

    private String downloadData(){

        HttpURLConnection con= Connector.connect(urlAddress);
        if(con==null){

            return null;
        }

        InputStream is=null;
        try {
            is=new BufferedInputStream(con.getInputStream());

            BufferedReader br=new BufferedReader(new InputStreamReader(is));
            String line=null;
            StringBuffer response= new StringBuffer();

            if(br!= null){

                while ((line=br.readLine())!=null){

                    response.append(line+"\n");
                }

                br.close();

            }else{
                return null;
            }

            return response.toString();


        } catch (IOException e) {
            e.printStackTrace();
        }finally {
            if(is!=null){
                try {
                    is.close();
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
        }


        return null;
    }
}