/**************************************************************************/
/*  power_x11.h                                                           */
/**************************************************************************/
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/*                             GODOT ENGINE                               */
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/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur.                  */
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#ifndef POWER_X11_H
#define POWER_X11_H

#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