/* SPDX-License-Identifier: LGPL-2.1-or-later */
/*
 * Copyright (C) 2018, Google Inc.
 *
 * camera_manager.h - Camera management
 */
#ifndef __LIBCAMERA_CAMERA_MANAGER_H__
#define __LIBCAMERA_CAMERA_MANAGER_H__

#include <memory>
#include <string>
#include <sys/types.h>
#include <vector>

#include <libcamera/object.h>
#include <libcamera/signal.h>

namespace libcamera {

class Camera;
class EventDispatcher;

class CameraManager : public Object
{
public:
	CameraManager();
	CameraManager(const CameraManager &) = delete;
	CameraManager &operator=(const CameraManager &) = delete;
	~CameraManager();

	int start();
	void stop();

	std::vector<std::shared_ptr<Camera>> cameras() const;
	std::shared_ptr<Camera> get(const std::string &name);
	std::shared_ptr<Camera> get(dev_t devnum);

	void addCamera(std::shared_ptr<Camera> camera,
		       const std::vector<dev_t> &devnums);
	void removeCamera(std::shared_ptr<Camera> camera);

	static const std::string &version() { return version_; }

	void setEventDispatcher(std::unique_ptr<EventDispatcher> dispatcher);
	EventDispatcher *eventDispatcher();

	Signal<std::shared_ptr<Camera>> cameraAdded;
	Signal<std::shared_ptr<Camera>> cameraRemoved;

private:
	static const std::string version_;
	static CameraManager *self_;

	class Private;
	std::unique_ptr<Private> p_;
};

} /* namespace libcamera */

#endif /* __LIBCAMERA_CAMERA_MANAGER_H__ */