CODESYS Forge

package com.codesys.forge;

import android.app.Notification;
import android.app.NotificationChannel;
import android.app.NotificationManager;
import android.app.PendingIntent;
import android.app.Service;
import android.content.Context;
import android.content.Intent;
import android.os.AsyncTask;
import android.os.Binder;
import android.os.Build;
import android.os.IBinder;
import android.util.Log;
import android.webkit.CookieManager;
import android.widget.Toast;

import androidx.core.app.NotificationCompat;
import androidx.core.app.NotificationManagerCompat;

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

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.net.URL;
import java.util.Timer;
import java.util.TimerTask;

///
/// Background service
///
public class MyService extends Service {

    private IBinder mBinder = (android.os.IBinder)new SocketServerBinder();
    private Timer mTimer;
    private boolean mRunning = false;
    private Context mContext;

    private void CreateNotificationChannel() {
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
            CharSequence name = getString(R.string.channel_name);
            String description = getString(R.string.channel_description);
            int importance = NotificationManager.IMPORTANCE_DEFAULT;
            NotificationChannel channel = new NotificationChannel(getString(R.string.channel_id), name, importance);
            channel.setDescription(description);
            NotificationManager notificationManager = getSystemService(NotificationManager.class);
            notificationManager.createNotificationChannel(channel);
        }
    }
    private void CreateNotification(int id) {
        String title;
        String description;

        switch(id) {
            case 1:
                title = getString(R.string.notification1_title);
                description = getString(R.string.notification1_description);
                break;
            case 2:
                title = getString(R.string.notification2_title);
                description = getString(R.string.notification2_description);
                break;
            case 3:
                title = getString(R.string.notification3_title);
                description = getString(R.string.notification3_description);
                break;
            default:
                title = "title undefined";
                description = "description undefined";
                break;

        }

        CreateNotificationChannel();
        NotificationManagerCompat notificationManager = NotificationManagerCompat.from(this);
        Intent intent = new Intent(this, MainActivity.class);
        intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_CLEAR_TASK);
        PendingIntent pendingIntent = PendingIntent.getActivity(this, 0, intent, 0);

        NotificationCompat.Builder builder = new NotificationCompat.Builder(this, getString(R.string.channel_id))
                .setSmallIcon(R.drawable.ic_codesys_logo)
                .setContentTitle(title)
                .setContentText(description)
                .setPriority(NotificationCompat.PRIORITY_DEFAULT)
                .setContentIntent(pendingIntent)
                ;
        notificationManager.notify(id, builder.build());
    }
    protected void CheckForUpdatesAndNotify() {
        new AsyncTask<Void, Void, String>() {
            @Override
            protected String doInBackground(Void... voids) {
                String urlString = "https://forge.codesys.com/rest/forge/saml";
                String cookies = CookieManager.getInstance().getCookie(urlString);
                try {
                    URL url = new URL(urlString);
                    HttpURLConnection conn = (HttpURLConnection) url.openConnection();
                    conn.setReadTimeout(10000 /* milliseconds */);
                    conn.setConnectTimeout(15000 /* milliseconds */);
                    conn.setRequestMethod("GET");
                    conn.setDoInput(true);
                    if (cookies != null)
                        conn.setRequestProperty("Cookie", cookies);
                    conn.connect();
                    BufferedReader reader = new BufferedReader(new InputStreamReader(conn.getInputStream()));
                    StringBuilder stringBuilder = new StringBuilder();

                    String line = null;
                    while ((line = reader.readLine()) != null)
                    {
                        stringBuilder.append(line + "\n");
                    }
                    String news = stringBuilder.toString();
                    JSONArray arr = new JSONArray(news);
                    for (int i=0; i < arr.length(); i++)
                    {
                        String uri = arr.getString(i);
                        switch(uri) {
                            case "/forge/community-feed/":
                                CreateNotification(1);
                                break;
                            case "/forge/news/":
                                CreateNotification(2);
                                break;
                            case "/forge/talk/":
                                CreateNotification(3);
                                break;
                        }
                    }
                    return news;
                }
                catch(MalformedURLException e) {

                }
                catch(IOException e) {

                }
                catch(JSONException e) {

                }
                return "error";
            }

        }.execute();

    }
    @Override
    public void onCreate() {
        mContext = this;
        //Toast.makeText(mContext,"Service created",Toast.LENGTH_SHORT).show();
        super.onCreate();
        mTimer = new Timer();

        mTimer.schedule(new TimerTask() {

            @Override
            public void run() {
                if (mRunning) {
                    CheckForUpdatesAndNotify();
                }
            }
        }, 10000, 3600000);
    }

    @Override
    public int onStartCommand(Intent intent, int flags, int startId) {
        mRunning = true;
        return super.onStartCommand(intent, flags, startId);
    }

    @Override
    public IBinder onBind(Intent arg0) {
        mRunning = true;
        return mBinder;
    }

    @Override
    public boolean onUnbind(Intent intent) {
        mRunning = false;
        return super.onUnbind(intent);
    }

    public class SocketServerBinder extends Binder {

        public MyService getService() {
            return MyService.this;
        }

    }

}