/*  _____ _
 * |_   _| |_  _ _ ___ ___ _ __  __ _
 *   | | | ' \| '_/ -_) -_) '  \/ _` |_
 *   |_| |_||_|_| \___\___|_|_|_\__,_(_)
 *
 * Threema for Android
 * Copyright (c) 2019-2020 Threema GmbH
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License, version 3,
 * as published by the Free Software Foundation.
 *
 * 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 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/>.
 */

/*
 * Copyright (C) 2010 ZXing authors
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package ch.threema.app.qrscanner.assit;

import android.app.Activity;
import android.content.Context;
import android.content.res.AssetFileDescriptor;
import android.media.AudioManager;
import android.media.MediaPlayer;

import java.io.Closeable;
import java.io.IOException;

import ch.threema.app.R;

/**
 * Manages beeps and vibrations for CaptureActivity.
 */

/**
 * @date 2016-11-24 9:52
 * @auther GuoJinyu
 * @description modified
 */
public final class BeepManager implements Closeable {

	private static final String TAG = BeepManager.class.getSimpleName();
	private static final float BEEP_VOLUME = 0.10f;
	private final Activity activity;
	private MediaPlayer mediaPlayer;
	private boolean playBeep;

	public BeepManager(Activity activity, boolean playBeep) {
		this.activity = activity;
		this.mediaPlayer = null;
		this.playBeep = playBeep;
	}

	private boolean shouldBeep(Context activity) {
		boolean shouldPlayBeep = playBeep;
		if (shouldPlayBeep) {
			// See if sound settings overrides this
			AudioManager audioService = (AudioManager) activity.getSystemService(Context.AUDIO_SERVICE);
			if (audioService.getRingerMode() != AudioManager.RINGER_MODE_NORMAL) {
				shouldPlayBeep = false;
			}
		}
		return shouldPlayBeep;
	}

	public synchronized void updatePrefs() {
		playBeep = shouldBeep(activity);
		if (playBeep && mediaPlayer == null) {
			// The volume on STREAM_SYSTEM is not adjustable, and users found it too loud,
			// so we now play on the music stream.
			activity.setVolumeControlStream(AudioManager.STREAM_MUSIC);
			mediaPlayer = buildMediaPlayer(activity);
		}
	}

	public synchronized void playBeepSoundAndVibrate() {
		if (playBeep && mediaPlayer != null) {
			mediaPlayer.start();
		}
	}

	private MediaPlayer buildMediaPlayer(Context activity) {
		MediaPlayer mediaPlayer = new MediaPlayer();
		try {
			AssetFileDescriptor file = activity.getResources().openRawResourceFd(R.raw.qrscanner_beep);
			try {
				mediaPlayer.setDataSource(file.getFileDescriptor(), file.getStartOffset(), file.getLength());
			} finally {
				file.close();
			}
			mediaPlayer.setAudioStreamType(AudioManager.STREAM_MUSIC);
			mediaPlayer.setLooping(false);
			mediaPlayer.setVolume(BEEP_VOLUME, BEEP_VOLUME);
			mediaPlayer.prepare();
			return mediaPlayer;
		} catch (IOException ioe) {
			//Log.w(TAG, ioe);
			mediaPlayer.release();
			return null;
		}
	}

	@Override
	public synchronized void close() {
		if (mediaPlayer != null) {
			mediaPlayer.release();
			mediaPlayer = null;
		}
	}

}
