/*
 * This file is part of Chiaki.
 *
 * Chiaki 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.
 *
 * Chiaki 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 Chiaki.  If not, see <https://www.gnu.org/licenses/>.
 */

#ifndef CHIAKI_CONTROLLERMANAGER_H
#define CHIAKI_CONTROLLERMANAGER_H

#include <chiaki/controller.h>

#include <QObject>
#include <QSet>
#include <QMap>
#include <QString>

#ifdef CHIAKI_GUI_ENABLE_SDL_GAMECONTROLLER
#include <SDL.h>
#endif

class Controller;

class ControllerManager : public QObject
{
	Q_OBJECT

	friend class Controller;

	private:
#ifdef CHIAKI_GUI_ENABLE_SDL_GAMECONTROLLER
		QSet<SDL_JoystickID> available_controllers;
#endif
		QMap<int, Controller *> open_controllers;

		void ControllerClosed(Controller *controller);

	private slots:
		void UpdateAvailableControllers();
		void HandleEvents();
		void ControllerEvent(int device_id);

	public:
		static ControllerManager *GetInstance();

		ControllerManager(QObject *parent = nullptr);
		~ControllerManager();

		QList<int> GetAvailableControllers();
		Controller *OpenController(int device_id);

	signals:
		void AvailableControllersUpdated();
};

class Controller : public QObject
{
	Q_OBJECT

	friend class ControllerManager;

	private:
		Controller(int device_id, ControllerManager *manager);

		void UpdateState();

		ControllerManager *manager;
		int id;

#ifdef CHIAKI_GUI_ENABLE_SDL_GAMECONTROLLER
		SDL_GameController *controller;
#endif

	public:
		~Controller();

		bool IsConnected();
		int GetDeviceID();
		QString GetName();
		ChiakiControllerState GetState();

	signals:
		void StateChanged();
};

#endif // CHIAKI_CONTROLLERMANAGER_H