package org.linphone.receivers;

/*
KeepAliveReceiver.java
Copyright (C) 2017  Belledonne Communications, Grenoble, France

This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
*/

import org.linphone.LinphoneManager;
import org.linphone.LinphonePreferences;
import org.linphone.LinphoneService;
import org.linphone.R;
import org.linphone.compatibility.Compatibility;
import org.linphone.core.Core;
import org.linphone.core.Factory;
import org.linphone.core.LogCollectionState;
import org.linphone.mediastream.Log;

import android.app.AlarmManager;
import android.app.PendingIntent;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.os.SystemClock;

/*
 * Purpose of this receiver is to disable keep alives when screen is off
 * */
public class KeepAliveReceiver extends BroadcastReceiver {
	@Override
	public void onReceive(Context context, Intent intent) {
		if (!LinphoneService.isReady()) {
			return;
		} else {
			boolean isDebugEnabled = LinphonePreferences.instance().isDebugEnabled();
			Factory.instance().enableLogCollection(isDebugEnabled ? LogCollectionState.Enabled : LogCollectionState.Disabled);
			Factory.instance().setDebugMode(isDebugEnabled, context.getString(R.string.app_name));
			Core lc = LinphoneManager.getLcIfManagerNotDestroyedOrNull();
			if (lc == null) return;

			String action = intent.getAction();
			if (action == null) {
				Log.i("[KeepAlive] Refresh registers");
				lc.refreshRegisters();
				//make sure iterate will have enough time, device will not sleep until exit from this method
				try {
					Thread.sleep(2000);
				} catch (InterruptedException e) {
					Log.e("Cannot sleep for 2s", e);
				} finally {
					//make sure the application will at least wakes up every 10 mn
					Intent newIntent = new Intent(context, KeepAliveReceiver.class);
					PendingIntent keepAlivePendingIntent = PendingIntent.getBroadcast(context, 0, newIntent, PendingIntent.FLAG_ONE_SHOT);

					AlarmManager alarmManager = ((AlarmManager) context.getSystemService(Context.ALARM_SERVICE));
					Compatibility.scheduleAlarm(alarmManager, AlarmManager.ELAPSED_REALTIME_WAKEUP, SystemClock.elapsedRealtime() + 600000, keepAlivePendingIntent);
				}
			} else if (action.equalsIgnoreCase(Intent.ACTION_SCREEN_ON)) {
				Log.i("[KeepAlive] Screen is on, enable");
				lc.enableKeepAlive(true);
			} else if (action.equalsIgnoreCase(Intent.ACTION_SCREEN_OFF)) {
				Log.i("[KeepAlive] Screen is off, disable");
				lc.enableKeepAlive(false);
			}
		}
	}
}