#include "soc.h"
#include "app/sox/measure.h"
#include "app/sox/measure_task.h"
#include "health.h"
#include "state.h"

static soc_t _soc;
static uint8_t charing = 0;
static u64     time_ms = 0;
static float _charger_coefficient = 1.0f;
static float _discharger_coefficient = 1.0f;
void soc_init(void){
	time_ms = shark_get_mseconds();
	_soc.coulomb_min = 0;
	_soc.coulomb_max = 30.0f * 3600.0f; //30HA,这个值最总需要health模块给
}

static __inline__ float _delta_time(void){
	u32 delta = shark_get_mseconds() - time_ms;
	time_ms = shark_get_mseconds();
	return  (float)delta / (1000.0f); //秒
}

void soc_update(void){
	if (!charing && bms_state_get()->charging){
		_soc.charger_coulomb = 0;//clear charing
		charing = 1;
	}else if (charing && !bms_state_get()->charging){
		charing = 0;
		_soc.dischrger_coulomb = 0; //clear discharger
	}
	float current = measure_value()->load_current / 1000.0f; //A
	float delta_q = current * _delta_time();
	if (charing){
		delta_q = delta_q * _charger_coefficient;
		_soc.charger_coulomb += abs(delta_q);
	}else {
		delta_q = delta_q * _discharger_coefficient;
		_soc.dischrger_coulomb += abs(delta_q); //转为正数
	}
	_soc.coulomb_now += delta_q; //充电加, 放电减
	_soc.capacity = (_soc.coulomb_now - _soc.coulomb_min)/(_soc.coulomb_max - _soc.coulomb_min) * 100;
}

soc_t *get_soc(void){
	return &_soc;
}