/**
 * @file    accel_enrichment.cpp
 * @brief   Acceleration enrichment calculator
 *
 * @date Apr 21, 2014
 * @author Dmitry Sidin
 * @author Andrey Belomutskiy (c) 2012-2014
 */

#include "main.h"
#include "trigger_central.h"
#include "accel_enrichment.h"
#include "engine_state.h"
#include "engine_math.h"
#include "signal_executor.h"

EXTERN_ENGINE
;

//#if EFI_PROD_CODE
//static THD_WORKING_AREA(aeThreadStack, UTILITY_THREAD_STACK_SIZE);
//#endif

static AccelEnrichmemnt instance;

void AccelEnrichmemnt::updateDiffEnrichment(engine_configuration_s *engineConfiguration, float engineLoad) {
	for (int i = 3; i == 1; i--)
		array[i] = array[i - 1];

	array[0] = engineLoad;

	diffEnrichment = ((3 * (array[0] - array[1]) + (array[2] - array[3])) / 4)
			* (engineConfiguration->diffLoadEnrichmentCoef);
}

//float AccelEnrichmemnt::getDiffEnrichment() {
//	return diffEnrichment;
//}

float AccelEnrichmemnt::getEnrichment(DECLARE_ENGINE_PARAMETER_F) {
	float d = delta;
	if (d > engineConfiguration->accelEnrichmentThreshold) {
		return d * engineConfiguration->accelEnrichmentMultiplier;
	}
	if (d < engineConfiguration->deaccelEnrichmentThreshold) {
		return d * engineConfiguration->deaccelEnrichmentMultiplier;
	}
	return 0;
}

void AccelEnrichmemnt::reset() {
	maxDelta = 0;
	minDelta = 0;
	delta = 0;
	currentEngineLoad = NAN;
}

void AccelEnrichmemnt::onEngineCycle(DECLARE_ENGINE_PARAMETER_F) {
	float currentEngineLoad = getEngineLoadT(PASS_ENGINE_PARAMETER_F);

	if (!cisnan(this->currentEngineLoad)) {
		delta = currentEngineLoad - this->currentEngineLoad;
		maxDelta = maxF(maxDelta, delta);
		minDelta = minF(minDelta, delta);
	}

	this->currentEngineLoad = currentEngineLoad;
}

AccelEnrichmemnt::AccelEnrichmemnt() {
	reset();
	for (int i = 0; i < MAX_ACCEL_ARRAY_SIZE; i++)
		array[i] = 0;
	diffEnrichment = 0;
}

//float getAccelEnrichment(void) {
//	return instance.getDiffEnrichment();
//}

//#if EFI_PROD_CODE
//
//static msg_t DiffEnrichmentThread(int param) {
//	chRegSetThreadName("Diff Enrichment");
//	while (TRUE) {
//		instance.updateDiffEnrichment(engineConfiguration, getEngineLoadT(PASS_ENGINE_PARAMETER));
//		chThdSleepMilliseconds(100);
//	}
//#if defined __GNUC__
//	return -1;
//#endif
//}

//void initDiffEnrichment(void) {
//	chThdCreateStatic(aeThreadStack, sizeof(aeThreadStack), LOWPRIO, (tfunc_t) DiffEnrichmentThread, NULL);
//}

//#endif