#ifndef _MULTI_BUTTON_H_
#define _MULTI_BUTTON_H_

#include "stdint.h"
#include "string.h"

//According to your need to modify the constants.
#define TICKS_INTERVAL    5	//ms
#define DEBOUNCE_TICKS    6	//MAX 8
#define SHORT_TICKS       (400 /TICKS_INTERVAL)
#define LONG_TICKS        (1000 /TICKS_INTERVAL)


typedef void (*btn_callback)(void *);

typedef enum {
	PRESS_DOWN = 0,
	PRESS_UP,
	PRESS_REPEAT,
	SINGLE_CLICK,
	DOUBLE_CLICK,
	LONG_PRESS_START,
	LONG_PRESS_HOLD,
	number_of_event,
	NONE_PRESS
} PRESS_EVT;

typedef enum {
	LOW_LEVEL_TRIGGER = 0,
	HIGH_LEVEL_TRIGGER,
	ACTIVE_LEVEL_INVALID,
} ACTIVE_LEVELS_EVT;

typedef struct _button_ {
	uint16_t ticks;
	uint8_t  repeat : 4;
	uint8_t  event : 4;
	uint8_t  state : 3;
	uint8_t  debounce_cnt : 3;
	uint8_t  active_level : 1;
	uint8_t  button_level : 1;

	void *user_data;
	uint8_t (*hal_button_Level)(struct _button_ *);
	btn_callback  cb[number_of_event];
	struct _button_ *next;
} BUTTON_S;

#ifdef __cplusplus
extern "C" {
#endif

void button_init(BUTTON_S *handle, uint8_t(*pin_level)(struct _button_ *), uint8_t active_level, void *user_data);
void button_attach(BUTTON_S *handle, PRESS_EVT event, btn_callback cb);
PRESS_EVT button_get_event(BUTTON_S *handle);
int  button_start(BUTTON_S *handle);
void button_stop(BUTTON_S *handle);
void button_ticks(void *param1, void *param2);
BUTTON_S *button_find_with_user_data(void *user_data);

#ifdef __cplusplus
}
#endif

#endif