/*************************************************************************/
/*  power_x11.h                                                          */
/*************************************************************************/
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/*                           GODOT ENGINE                                */
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/* Copyright (c) 2007-2017 Juan Linietsky, Ariel Manzur.                 */
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#ifndef X11_POWER_H_
#define X11_POWER_H_

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

class PowerX11 {

private:
	int nsecs_left;
	int percent_left;
	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();

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

#endif /* X11_POWER_H_ */