/*  Copyright (C) 2015-2024 Andreas Shimokawa, Benjamin Swartley, Carsten
    Pfeiffer, Daniele Gobbetti, Gabe Schrecker, José Rebelo, Petr Vaněk

    This file is part of Gadgetbridge.

    Gadgetbridge is free software: you can redistribute it and/or modify
    it under the terms of the GNU Affero General Public License as published
    by the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.

    Gadgetbridge 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 Affero General Public License for more details.

    You should have received a copy of the GNU Affero General Public License
    along with this program.  If not, see <https://www.gnu.org/licenses/>. */
package nodomain.freeyourgadget.gadgetbridge.service.receivers;

import android.content.BroadcastReceiver;
import android.content.ComponentName;
import android.content.Context;
import android.content.Intent;
import android.media.AudioManager;
import android.media.session.MediaController;
import android.media.session.MediaSessionManager;
import android.os.SystemClock;
import android.view.KeyEvent;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import java.util.List;

import nodomain.freeyourgadget.gadgetbridge.GBApplication;
import nodomain.freeyourgadget.gadgetbridge.deviceevents.GBDeviceEventMusicControl;
import nodomain.freeyourgadget.gadgetbridge.externalevents.NotificationListener;
import nodomain.freeyourgadget.gadgetbridge.util.Prefs;

public class GBMusicControlReceiver extends BroadcastReceiver {
    private static final Logger LOG = LoggerFactory.getLogger(GBMusicControlReceiver.class);

    public static final String ACTION_MUSICCONTROL = "nodomain.freeyourgadget.gadgetbridge.musiccontrol";

    @Override
    public void onReceive(Context context, Intent intent) {
        GBDeviceEventMusicControl.Event musicCmd = GBDeviceEventMusicControl.Event.values()[intent.getIntExtra("event", 0)];
        int keyCode = -1;
        int volumeAdjust = AudioManager.ADJUST_LOWER;

        AudioManager audioManager = (AudioManager) context.getSystemService(Context.AUDIO_SERVICE);
        
        switch (musicCmd) {
            case NEXT:
                keyCode = KeyEvent.KEYCODE_MEDIA_NEXT;
                break;
            case PREVIOUS:
                keyCode = KeyEvent.KEYCODE_MEDIA_PREVIOUS;
                break;
            case PLAY:
                keyCode = KeyEvent.KEYCODE_MEDIA_PLAY;
                break;
            case PAUSE:
                keyCode = KeyEvent.KEYCODE_MEDIA_PAUSE;
                break;
            case PLAYPAUSE:
                keyCode = KeyEvent.KEYCODE_MEDIA_PLAY_PAUSE;
                break;
            case REWIND:
                keyCode = KeyEvent.KEYCODE_MEDIA_REWIND;
                break;
            case FORWARD:
                keyCode = KeyEvent.KEYCODE_MEDIA_FAST_FORWARD;
                break;
            case VOLUMEUP:
                // change default and fall through, :P
                volumeAdjust = AudioManager.ADJUST_RAISE;
            case VOLUMEDOWN:
                audioManager.adjustStreamVolume(AudioManager.STREAM_MUSIC, volumeAdjust, 0);

                final int volumeLevel = audioManager.getStreamVolume(AudioManager.STREAM_MUSIC);
                final int volumeMax = audioManager.getStreamMaxVolume(AudioManager.STREAM_MUSIC);
                final int volumePercentage = (byte) Math.round(100 * (volumeLevel / (float) volumeMax));

                GBApplication.deviceService().onSetPhoneVolume(volumePercentage);
                break;
            default:
                return;
        }

        if (keyCode != -1) {
            String audioPlayer = getAudioPlayer(context);

            LOG.debug("keypress: " + musicCmd.toString() + " sent to: " + audioPlayer);

            long eventtime = SystemClock.uptimeMillis();
            
            if (GBApplication.getPrefs().getBoolean("mb_intents", false)) {
                Intent downIntent = new Intent(Intent.ACTION_MEDIA_BUTTON, null);
                KeyEvent downEvent = new KeyEvent(eventtime, eventtime, KeyEvent.ACTION_DOWN, keyCode, 0);
                downIntent.putExtra(Intent.EXTRA_KEY_EVENT, downEvent);
                if (!"default".equals(audioPlayer)) {
                    downIntent.setPackage(audioPlayer);
                }
                context.sendOrderedBroadcast(downIntent, null);

                Intent upIntent = new Intent(Intent.ACTION_MEDIA_BUTTON, null);
                KeyEvent upEvent = new KeyEvent(eventtime, eventtime, KeyEvent.ACTION_UP, keyCode, 0);
                upIntent.putExtra(Intent.EXTRA_KEY_EVENT, upEvent);
                if (!"default".equals(audioPlayer)) {
                    upIntent.setPackage(audioPlayer);
                }
                context.sendOrderedBroadcast(upIntent, null);
            } else {
                KeyEvent downEvent = new KeyEvent(eventtime, eventtime, KeyEvent.ACTION_DOWN, keyCode, 0);
                audioManager.dispatchMediaKeyEvent(downEvent);

                KeyEvent upEvent = new KeyEvent(eventtime, eventtime, KeyEvent.ACTION_UP, keyCode, 0);
                audioManager.dispatchMediaKeyEvent(upEvent);
            }
        }
    }

    private String getAudioPlayer(Context context) {
        Prefs prefs = GBApplication.getPrefs();
        String audioPlayer = prefs.getString("audio_player", "default");
        MediaSessionManager mediaSessionManager =
                (MediaSessionManager) context.getSystemService(Context.MEDIA_SESSION_SERVICE);
        try {
            List<MediaController> controllers = mediaSessionManager.getActiveSessions(
                    new ComponentName(context, NotificationListener.class));
            try {
                MediaController controller = controllers.get(0);
                audioPlayer = controller.getPackageName();
            } catch (IndexOutOfBoundsException e) {
                LOG.error("No media controller available", e);
            }
        } catch (SecurityException e) {
            LOG.warn("No permission to get media sessions - did not grant notification access?", e);
        }

        return audioPlayer;
    }
}
