//
// This file is part of Kepka,
// an unofficial desktop version of Telegram messaging app,
// see https://github.com/procxx/kepka
//
// Kepka 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.
//
// It 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.
//
// In addition, as a special exception, the copyright holders give permission
// to link the code of portions of this program with the OpenSSL library.
//
// Full license: https://github.com/procxx/kepka/blob/master/LICENSE
// Copyright (c) 2014-2017 John Preston, https://desktop.telegram.org
// Copyright (c) 2017- Kepka Contributors, https://github.com/procxx
//
#pragma once

#include "base/observer.h"
#include "ui/twidget.h"

class AudioMsgId;

namespace Ui {
class FlatLabel;
class LabelSimple;
class IconButton;
class MediaSlider;
} // namespace Ui

namespace Media {
namespace Clip {
class Playback;
} // namespace Clip

namespace Player {

class VolumeController;
struct TrackState;

class CoverWidget : public TWidget, private base::Subscriber {
public:
	CoverWidget(QWidget *parent);

	using ButtonCallback = Fn<void()>;
	void setPinCallback(ButtonCallback &&callback);
	void setCloseCallback(ButtonCallback &&callback);

protected:
	void resizeEvent(QResizeEvent *e) override;
	void paintEvent(QPaintEvent *e) override;
	void mouseMoveEvent(QMouseEvent *e) override;
	void leaveEventHook(QEvent *e) override;

private:
	void setCloseVisible(bool visible);
	void handleSeekProgress(double progress);
	void handleSeekFinished(double progress);

	void updatePlayPrevNextPositions();
	void updateLabelPositions();
	void updateRepeatTrackIcon();
	void createPrevNextButtons();
	void destroyPrevNextButtons();

	void updateVolumeToggleIcon();

	void handleSongUpdate(const TrackState &state);
	void handleSongChange();
	void handlePlaylistUpdate();

	void updateTimeText(const TrackState &state);
	void updateTimeLabel();

	TimeMs _seekPositionMs = -1;
	TimeMs _lastDurationMs = 0;
	QString _time;

	class PlayButton;
	object_ptr<Ui::FlatLabel> _nameLabel;
	object_ptr<Ui::LabelSimple> _timeLabel;
	object_ptr<Ui::IconButton> _close;
	object_ptr<Ui::MediaSlider> _playbackSlider;
	std::unique_ptr<Clip::Playback> _playback;
	object_ptr<Ui::IconButton> _previousTrack = {nullptr};
	object_ptr<PlayButton> _playPause;
	object_ptr<Ui::IconButton> _nextTrack = {nullptr};
	object_ptr<Ui::IconButton> _volumeToggle;
	object_ptr<VolumeController> _volumeController;
	object_ptr<Ui::IconButton> _pinPlayer;
	object_ptr<Ui::IconButton> _repeatTrack;
};

} // namespace Player
} // namespace Media