#ifndef POWER_X11_H
#define POWER_X11_H

/*************************************************************************/
/*  power_x11.h                                                          */
/*************************************************************************/
/*                         This file is part of:                         */
/*                          PANDEMONIUM ENGINE                           */
/*             https://github.com/Relintai/pandemonium_engine            */
/*************************************************************************/
/* Copyright (c) 2022-present Péter Magyar.                              */
/* Copyright (c) 2014-2022 Godot Engine contributors (cf. AUTHORS.md).   */
/* Copyright (c) 2007-2022 Juan Linietsky, Ariel Manzur.                 */
/*                                                                       */
/* Permission is hereby granted, free of charge, to any person obtaining */
/* a copy of this software and associated documentation files (the       */
/* "Software"), to deal in the Software without restriction, including   */
/* without limitation the rights to use, copy, modify, merge, publish,   */
/* distribute, sublicense, and/or sell copies of the Software, and to    */
/* permit persons to whom the Software is furnished to do so, subject to */
/* the following conditions:                                             */
/*                                                                       */
/* The above copyright notice and this permission notice shall be        */
/* included in all copies or substantial portions of the Software.       */
/*                                                                       */
/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,       */
/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF    */
/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY  */
/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,  */
/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE     */
/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                */
/*************************************************************************/

#include "core/os/dir_access.h"
#include "core/os/file_access.h"
#include "core/os/os.h"

class PowerX11 {
private:
	int nsecs_left;
	int percent_left;
	OS::PowerState power_state;

	FileAccessRef open_power_file(const char *base, const char *node, const char *key);
	bool read_power_file(const char *base, const char *node, const char *key, char *buf, size_t buflen);
	bool make_proc_acpi_key_val(char **_ptr, char **_key, char **_val);
	void check_proc_acpi_battery(const char *node, bool *have_battery, bool *charging);
	void check_proc_acpi_ac_adapter(const char *node, bool *have_ac);
	bool GetPowerInfo_Linux_proc_acpi();
	bool next_string(char **_ptr, char **_str);
	bool int_string(char *str, int *val);
	bool GetPowerInfo_Linux_proc_apm();
	bool GetPowerInfo_Linux_sys_class_power_supply();
	bool UpdatePowerInfo();

public:
	PowerX11();
	virtual ~PowerX11();

	OS::PowerState get_power_state();
	int get_power_seconds_left();
	int get_power_percent_left();
};

#endif // POWER_X11_H