package com.twolf.stressball11;


import android.app.NotificationManager;
import android.app.PendingIntent;
import android.app.Service;
import android.content.Intent;
import android.media.RingtoneManager;
import android.net.Uri;
import android.os.AsyncTask;
import android.os.IBinder;
import android.support.v4.app.NotificationCompat;
import android.widget.Toast;

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

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.URL;
import java.util.concurrent.ExecutionException;

/*********************************************************************************************
 * The sleep service is runs currently every couple of minutes for testing using the calendar
 * and in the future a settings page the user can input how many hours of sleep is good for them
 * and when they usually wake up. Using the calendar then would run the alarm every 24 hours and
 * a couple hours after the person has woken up. This class runs the json parser and compares sleep
 * time to how much sleep is needed in minutes.
 *
 * All services if they notify the user send the user to heartData class to visually see the data
 *
 *                                          -Thomas Wolf
 *
 * help from: https://www.youtube.com/watch?v=tyVaPHv-RGo  ****setting up a service
 * https://developer.android.com/reference/android/util/JsonReader.html ****json parsing
 */

public class SleepService extends Service {
    int myData=0;
    public SleepService() {
    }

    @Override
    public IBinder onBind(Intent intent) {
        return null;
    }

    @Override
    public void onCreate()
    /*****************************************************************************
     * Function onCreate()
     * Purpose: when service starts it first updates its array to gather sleep information
     * if sleep is bellow what is needed notifies user stress  may be high due to lack of sleep
     * Usage: called automatically when service starts
     */
    {
        try {
            String result = new getJsonData().execute().get(); // forces a wait. Wong move until
                                                                // Async has returned a result
        } catch (InterruptedException e) {
            e.printStackTrace();
        } catch (ExecutionException e) {
            e.printStackTrace();
        }
        if(myData<360) // standard set to 6 hours of sleep
        {
            final Uri sound = RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION);
            final NotificationManager NM = (NotificationManager) getSystemService(NOTIFICATION_SERVICE);
            Intent intent = new Intent(this.getApplicationContext(), HeartData.class); // where to go when clicked on
            final PendingIntent pendingIntent = PendingIntent.getActivity(this, 0, intent, 0);
            NotificationCompat.Builder notificationCompat = new NotificationCompat.Builder(SleepService.this)
                    .setSmallIcon(R.drawable.icon)
                    .setContentTitle("Lack of Sleep")
                    .setContentText("Stress levels may be high today")
                    .setTicker("Sleep detection")
                    .setContentIntent(pendingIntent)
                    .setSound(sound)
                    .setAutoCancel(true);

            NM.notify(1, notificationCompat.build());//Posts to the screen my notification
        }

        stopSelf();//Need to call this so the alarm can reset otherwise it will continue in the
        //backgound.
    }
    @Override
    public void onDestroy() {
        /***********************************************************************************************
         * Function Name: onDestroy()
         * Purpose: Destroys the notification
         * Usage: Call this function when you want notification to be destroyed
         ***********************************************************************************************/
        super.onDestroy();
        Toast.makeText(this,"in desotry", Toast.LENGTH_LONG).show();
        return;

    }

    @Override
    public void onStart(Intent intent, int startId) {
        /***********************************************************************************************
         * Function Name: onStart(Intent intent, int startID)
         * Purpose: Creates the notification
         * Usage: Call this function when you want creating notification process to begin
         ***********************************************************************************************/
        super.onCreate();
        Toast.makeText(SleepService.this, "Service started", Toast.LENGTH_LONG).show();
    }

    @Override
    public int onStartCommand(Intent intent, int flags, int startId) {
        /***********************************************************************************************
         * Function Name: onStartCommand(Intent intent, int flags, int startId)
         * Purpose: The system invokes this method by calling startService() when another component
         * (such as an activity) requests that the service be started. When this method executes,
         * the service is started and can run in the background indefinitely
         *
         * help from https://developer.android.com/guide/components/services.html
         ***********************************************************************************************/
        // TODO do something useful
        return Service.START_NOT_STICKY;//https://developer.android.com/reference/android/app/Service.html Only while needed;
    }


    public class getJsonData extends AsyncTask<String,String,String>
    {
        /*
            Updates array using json files
         */
        @Override
        protected void onPreExecute() {
            super.onPreExecute();

        }

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

        }

        @Override
        protected String doInBackground(String... params) {
            try
            {
                //connect to sleep json
                URL url= new URL("http://compsci02.snc.edu/cs460/2017/wolftd/oauth2/sleep.json");
                HttpURLConnection con = (HttpURLConnection) url.openConnection();
                con.connect();

                //Grab the data
                InputStream stream = con.getInputStream();
                BufferedReader reader = new BufferedReader(new InputStreamReader(stream));
                StringBuffer sb = new StringBuffer();
                String line="";
                while ((line =reader.readLine())!=null)
                {
                    sb.append(line);
                }

                String finalJson =sb.toString(); // turn json to string
                JSONObject parentObject = new JSONObject(finalJson);// create json parent object
                JSONObject sleepJson = parentObject.getJSONObject("summary");// grabs specific object
                int sleep =sleepJson.getInt("totalMinutesAsleep");//grabs data at object
                myData =sleep;
                con.disconnect();




            }
            catch(IOException e)
            {

            } catch (JSONException e) {
                e.printStackTrace();
            }


            return null;
        }
    }




}