class SmsReciever: BroadcastReceiver() {
    override fun onReceive(context: Context, intent: Intent) {
        val extras = intent.extras

        if(extras != null) {
            val sms = extras.get("pdus") as Array<Any>

            for(i in sms.indices){
                val format = extras.getString("format")

                var smsMessage = if(Build.VERSION.SDK_INT >= Build.VERSION_CODES.M){
                    SmsMessage.createFromPdu(sms[i] as ByteArray, format)

                } else {
                    SmsMessage.createFromPdu(sms[i] as ByteArray)

                }

                val phoneNumber = smsMessage.originatingAddress
                val message = smsMessage.messageBody.toString()

                Toast.makeText(context, "phoneNumber: $phoneNumber" + "message: $message", Toast.LENGTH_SHORT). show()

                createWebNotification(context, phoneNumber, message)

                val preference: SharedPreferences = PreferenceManager.getDefaultSharedPreferences(context)


                if(preference.getBoolean("auto_reply", false)){
                    val sms = SmsManager.getDefault()

                    sms.sendTextMessage(phoneNumber, null, "This is an automatic Message", null, null)


                }


            }

        }

    }

    fun createWebNotification(context: Context,title: String, text: String) {
        val channelId = context.getString(edu.uw.amjadz.yama.R.string.default_notification)
        val notificationBuilder = NotificationCompat.Builder(context, channelId)
        notificationBuilder.setAutoCancel(true)
        notificationBuilder.setSmallIcon(edu.uw.amjadz.yama.R.drawable.notification_icon_background)
        notificationBuilder.setContentTitle(title)
        notificationBuilder.setContentText(text)
        notificationBuilder.setDefaults(Notification.DEFAULT_SOUND)


        val mNotificationManager =
            context.getSystemService(Context.NOTIFICATION_SERVICE) as NotificationManager

        // pending implicit intent to view url
        val intent: Intent = Intent(context, MainActivity::class.java)
        intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP)


        val pending = PendingIntent.getActivity(context, 0, intent, PendingIntent.FLAG_UPDATE_CURRENT)
        notificationBuilder.setContentIntent(pending)
        // Since android Oreo notification channel is needed.
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
            val channel = NotificationChannel(
                channelId,
                "Aware CloudAlert",
                NotificationManager.IMPORTANCE_DEFAULT
            )
            mNotificationManager.createNotificationChannel(channel)
        }
        // using the same tag and Id causes the new notification to replace an existing one
        val random = Random()
        mNotificationManager.notify(
            System.currentTimeMillis().toString(),
            random.nextInt(),
            notificationBuilder.build()
        )
    }


}