package com.bud.ohad.noticeboardeylon;

import android.app.NotificationChannel;
import android.app.NotificationManager;
import android.app.PendingIntent;
import android.app.job.JobParameters;
import android.app.job.JobService;
import android.content.Intent;
import android.os.Build;
import android.support.v4.app.NotificationCompat;
import android.support.v4.app.NotificationManagerCompat;
import android.util.Log;

import com.google.firebase.auth.FirebaseAuth;
import com.google.firebase.auth.FirebaseUser;
import com.google.firebase.database.DataSnapshot;
import com.google.firebase.database.DatabaseError;
import com.google.firebase.database.DatabaseReference;
import com.google.firebase.database.FirebaseDatabase;
import com.google.firebase.database.ValueEventListener;


public class TestJobService extends JobService {
    private FirebaseAuth mAuth;
    @Override
    public boolean onStartJob(JobParameters jobParameters) {
        /**
         * Job has been started an alert is about to show
         */
        Intent service = new Intent(getApplicationContext(), MyService.class);
        getApplicationContext().startService(service); // starts the service that sends the alerts
        createNotificationChannel();// creates notification channel
        mAuth = FirebaseAuth.getInstance();// gets user auth
        FirebaseUser currentUser = mAuth.getCurrentUser(); //gets user details
        if(mAuth==null||currentUser==null){
            //user is not connected
            showNotification("Hurry up and connect","events await you!");
        }else {
            //user is connected!!
            final FirebaseDatabase database = FirebaseDatabase.getInstance();
            DatabaseReference ref = database.getReference();
            ref.child("Users").child(currentUser.getUid()).addValueEventListener(new ValueEventListener() {
                @Override
                public void onDataChange(DataSnapshot dataSnapshot) {
                    //get the user details object
                    ServerUser currUser = dataSnapshot.getValue(ServerUser.class);
                    Log.d("2", "Current user details: " + currUser.toString());
                    int group[] = new int[1];
                    group[0] = currUser.getGroup();//get user group
                    final FirebaseDatabase database1 = FirebaseDatabase.getInstance();
                    DatabaseReference ref1 = database.getReference();
                    ref1.child("Groups").child(group[0] + "").child("Events").addListenerForSingleValueEvent(new ValueEventListener() {
                        @Override
                        public void onDataChange(DataSnapshot dataSnapshot) {
                            //count the amount of events in the user's group
                            if (dataSnapshot.getChildrenCount() == 0) {
                                //no events found
                                showNotification("You have no new events ", ":(");
                            } else {
                                //some events foound events found
                                showNotification("You have " + dataSnapshot.getChildrenCount() + " events!", "Come and check them out");
                            }
                            //scedules the next Job
                            Job.scheduleJob(getApplicationContext()); // הפעלה מחדש

                        }

                        @Override
                        public void onCancelled(DatabaseError databaseError) {

                        }
                    });
                }

                @Override
                public void onCancelled(DatabaseError databaseError) {
                    System.out.println("The read failed: " + databaseError.getCode());
                    Log.d("2", "Failed read on TestJobServiece");
                }
            });

        }
        return true;
    }

    @Override
    public boolean onStopJob(JobParameters jobParameters) {
        return true;
    }

    /**
     *
     * @param title title of the notification
     * @param text the text displayed in the notification
     */
    public void showNotification(String title,String text) {

        Intent intent = new Intent(this, AllEvents.class);
        intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_CLEAR_TASK);
        PendingIntent pendingIntent = PendingIntent.getActivity(this, 0, intent, 0);
        //Builds the notification
        NotificationCompat.Builder mBuilder = new NotificationCompat.Builder(this, BroardFunctions.NOTIFICATION_CHANNEL_ID)
                .setContentTitle(title)//sets title
                .setSmallIcon(R.mipmap.appiconblue)//sets icon
                .setContentText(text)//sets text
                .setWhen(System.currentTimeMillis())//writes date on notification
                .setStyle(new NotificationCompat.BigTextStyle()
                        .bigText(text))
                .setPriority(NotificationCompat.PRIORITY_DEFAULT).setContentIntent(pendingIntent).setAutoCancel(true);
        PendingIntent loginIntent = PendingIntent.getActivity(this, 0,
                new Intent(this, Login.class), PendingIntent.FLAG_UPDATE_CURRENT);
        mBuilder.setContentIntent(loginIntent);//overrides the contect intent to login page as opposed to all events which would not work if the user is disconnected
        NotificationManagerCompat notificationManager = NotificationManagerCompat.from(this);
        //send notification
        notificationManager.notify(1, mBuilder.build());


    }


    private void createNotificationChannel() {
        // Create the NotificationChannel, but only on API 26+ because
        // the NotificationChannel class is new and not in the support library
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
            CharSequence name = "NAME";
            String description = "description";
            int importance = NotificationManager.IMPORTANCE_DEFAULT;
            NotificationChannel channel = new NotificationChannel(BroardFunctions.NOTIFICATION_CHANNEL_ID, name, importance);
            channel.setDescription(description);
            // Register the channel with the system; you can't change the importance
            // or other notification behaviors after this
            NotificationManager notificationManager = getSystemService(NotificationManager.class);

            notificationManager.createNotificationChannel(channel);
        }


    }
}