/* ScummVM - Graphic Adventure Engine
 *
 * ScummVM is the legal property of its developers, whose names
 * are too numerous to list here. Please refer to the COPYRIGHT
 * file distributed with this source distribution.
 *
 * 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 3 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, see <http://www.gnu.org/licenses/>.
 *
 */

#ifndef GRIM_SOUNDTRACK_H
#define GRIM_SOUNDTRACK_H

#include "audio/mixer.h"
#include "audio/timestamp.h"

#include "math/vector3d.h"

namespace Common {
	class String;
}

namespace Audio {
	class AudioStream;
	class SoundHandle;
}

namespace Grim {

class SaveGame;

/**
 * @class Super-class for the different codecs used in EMI
 */
class SoundTrack {
public:
	enum FadeMode {
		FadeNone,
		FadeIn,
		FadeOut
	};
protected:
	Common::String _soundName;
	Audio::AudioStream *_stream;
	Audio::SoundHandle *_handle;
	Audio::Mixer::SoundType _soundType;
	DisposeAfterUse::Flag _disposeAfterPlaying;
	bool _paused;
	bool _positioned;
	Math::Vector3d _pos;
	FadeMode _fadeMode;
	float _fade;
	float _attenuation;
	int _balance;
	int _volume;
	int _sync;
public:
	SoundTrack();
	virtual ~SoundTrack();
	virtual bool openSound(const Common::String &filename, const Common::String &voiceName, const Audio::Timestamp *start = nullptr) = 0;
	virtual bool isPlaying() = 0;
	virtual bool play();
	virtual void pause();
	virtual void stop();

	void fadeIn() { _fadeMode = FadeIn; }
	void fadeOut() { _fadeMode = FadeOut; }
	void setFadeMode(FadeMode fadeMode) { _fadeMode = fadeMode; }
	void setFade(float fade);
	float getFade() const { return _fade; }
	FadeMode getFadeMode() const { return _fadeMode; }
	void setBalance(int balance);
	void setVolume(int volume);
	void setPosition(bool positioned, const Math::Vector3d &pos = Math::Vector3d());
	void updatePosition();
	void setSync(int sync) { _sync = sync; }
	int getEffectiveVolume();
	int getVolume() const { return _volume; }
	int getBalance() const { return _balance; }
	int getSync() const { return _sync; }
	virtual Audio::Timestamp getPos() = 0;
	Common::String getSoundName();
	void setSoundName(const Common::String &name);
	virtual bool hasLooped() { return false; }
	virtual void setLooping(bool looping) { }
	virtual bool isLooping() const { return false; }
	bool isPaused() const { return _paused; }
	bool isPositioned() const { return _positioned; }
	Math::Vector3d getWorldPos() const { return _pos; }
	Audio::Mixer::SoundType getSoundType() const { return _soundType; }
};

}

#endif