package smaa.smaa;

import android.app.Activity;
import android.content.Context;
import android.content.Intent;
import android.os.AsyncTask;
import android.support.v7.app.AlertDialog;
import android.widget.Toast;

import org.apache.http.params.HttpConnectionParams;

import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.io.OutputStreamWriter;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.net.URL;
import java.net.URLEncoder;

import static android.support.v4.content.ContextCompat.startActivity;

public class BackgroundTask extends AsyncTask<String,Void,String> {
    AlertDialog alertDialog;
    Context ctx;
    String response = "";

    private Context applicationContext;
    private Context activity;

    BackgroundTask(Context ctx) {

        this.ctx = ctx;
    }

    @Override
    protected void onPreExecute() {
        super.onPreExecute();
        alertDialog = new AlertDialog.Builder(ctx).create();
        alertDialog.setTitle("Login Information");
    }

    @Override
    protected String doInBackground(String... params) {
        String reg_url = "https://smaa.000webhostapp.com/androidregister.php";
        String login_url = "https://smaa.000webhostapp.com/androidlogin.php";

        String method = params[0];

        if (method.equals("register")) {
            String name = params[1];
            String user_name = params[2];
            String user_pass = params[3];
            String user_email = params[4];
            try {
                URL url = new URL(reg_url);
                HttpURLConnection httpURLConnection = (HttpURLConnection) url.openConnection();

                httpURLConnection.setRequestMethod("POST");
                httpURLConnection.setDoOutput(true);
                OutputStream OS = httpURLConnection.getOutputStream();

                BufferedWriter bufferedWriter = new BufferedWriter(new OutputStreamWriter(OS, "UTF-8"));
                String data = URLEncoder.encode("user", "UTF-8") + "=" + URLEncoder.encode(name, "UTF-8") + "&" +
                        URLEncoder.encode("user_email", "UTF-8") + "=" + URLEncoder.encode(user_name, "UTF-8") + "&" +
                        URLEncoder.encode("user_name", "UTF-8") + "=" + URLEncoder.encode(user_pass, "UTF-8") + "&" +
                        URLEncoder.encode("user_pass", "UTF-8") + "=" + URLEncoder.encode(user_email, "UTF-8");
                bufferedWriter.write(data);
                bufferedWriter.flush();
                bufferedWriter.close();
                OS.close();

                InputStream IS = httpURLConnection.getInputStream();
                IS.close();
                return "REGISTO COMPLETO!";
            } catch (MalformedURLException e) {
                e.printStackTrace();
            } catch (IOException e) {
                e.printStackTrace();
            }
        } else if (method.equals("login")) {
            String login_name = params[1];
            String login_pass = params[2];
            try {
                URL url = new URL(login_url);
                HttpURLConnection httpURLConnection = (HttpURLConnection) url.openConnection();

                httpURLConnection.setDoOutput(true);
                httpURLConnection.setDoInput(true);

                OutputStream outputStream = httpURLConnection.getOutputStream();
                BufferedWriter bufferedWriter = new BufferedWriter(new OutputStreamWriter(outputStream, "UTF-8"));

                String data = URLEncoder.encode("login_name", "UTF-8") + "=" + URLEncoder.encode(login_name, "UTF-8") + "&" +
                        URLEncoder.encode("login_pass", "UTF-8") + "=" + URLEncoder.encode(login_pass, "UTF-8");
                bufferedWriter.write(data);
                bufferedWriter.flush();
                bufferedWriter.close();
                outputStream.close();

                InputStream inputStream = httpURLConnection.getInputStream();
                BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(inputStream, "iso-8859-1"));


                String line = "";

                while ((line = bufferedReader.readLine()) != null) {
                    response += line;
                }

                bufferedReader.close();
                inputStream.close();

                httpURLConnection.disconnect();

                return response;
            } catch (MalformedURLException e) {
                e.printStackTrace();
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
        return null;
    }

    @Override
    protected void onProgressUpdate(Void... values) {
        super.onProgressUpdate(values);
    }

    @Override
    protected void onPostExecute(String result) {
        try {
            if (result.equals("REGISTO COMPLETO!")) {
                Toast.makeText(ctx, result,Toast.LENGTH_LONG).show();
            } else if (!response.equals("SUCESS")){
                alertDialog.setMessage(result);
                alertDialog.show();
            }
            if (response.equals("SUCESS")) {
                ctx.startActivity(new Intent(ctx, NavActivity.class));
            }
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}