/*
 * SMUCNGPerfOperator.cpp
 *
 *  Created on: Jul 20, 2019
 *      Author: carla
 */

#include "../../includes/DerivedMetrics.h"
#include "SMUCNGPerfOperator.h"

SMUCNGPerfOperator::SMUCNGPerfOperator(const std::string& name): OperatorTemplate(name) {
	_buffers.resize(5);
}

SMUCNGPerfOperator::~SMUCNGPerfOperator() {
}

void SMUCNGPerfOperator::printConfig(LOG_LEVEL ll) {
    OperatorTemplate<SMUCSensorBase>::printConfig(ll);
    LOG_VAR(ll) << " metric to position map: ";
    for(auto &kv : _metricToPosition){
    	LOG_VAR(ll) << "Metric = " << kv.first << "Position = " << kv.second;
    }
}

void SMUCNGPerfOperator::compute(U_Ptr unit) {
	auto inputs = unit->getInputs();
	auto timestamp = getTimestamp(); //ToDo timestamp minus some time...
	auto outputs = unit->getOutputs();
	for(auto& outSensor : outputs){
		if( outSensor->getPosition() == _metricToPosition[SMUCSensorBase::CPI]) {
			std::vector<reading_t> & instructions = _buffers[0];
			std::vector<reading_t> & clocks = _buffers[1];
			_queryEngine.querySensor(inputs[_metricToPosition[SMUCSensorBase::INSTRUCTIONS]]->getName(), timestamp, timestamp, &instructions, false); //use absolute timestamp
			_queryEngine.querySensor(inputs[_metricToPosition[SMUCSensorBase::CLOCKS]]->getName(), timestamp, timestamp, &clocks, false); //use absolute timestamp
			reading_t clockspersecond;
			bool wascalced = false;
			if(instructions.size() > 0 && clocks.size() > 0) {
				if(calculateMetricRatio(clocks.begin(),instructions.begin(), outSensor->getScalingFactor(), clockspersecond)){
					outSensor->storeReading(clockspersecond);
				}
			}
		} else if (outSensor->getPosition() == _metricToPosition[SMUCSensorBase::FREQUENCY]) {
			std::vector<reading_t> & clocks = _buffers[0];
			std::vector<reading_t> & clocks_ref = _buffers[1];
			_queryEngine.querySensor(inputs[_metricToPosition[SMUCSensorBase::CLOCKS]]->getName(), timestamp, timestamp, &clocks, false); //use absolute timestamp
			_queryEngine.querySensor(inputs[_metricToPosition[SMUCSensorBase::CLOCKS_REF]]->getName(), timestamp, timestamp, &clocks_ref, false); //use absolute timestamp
			reading_t frequency;
			bool wascalced = false;
			if( clocks.size() > 0 && clocks_ref.size() > 0){
				if(calculateFrequency(clocks_ref.begin(),clocks.begin(), MIN_FREQ_MHZ, MAX_FREQ_MHZ, frequency)) {
					outSensor->storeReading(frequency);
				}
			}

		}
		resetBuffers();
	}
}

void SMUCNGPerfOperator::resetBuffers(){
	for(auto &buffer: _buffers){
		buffer.clear();
	}
}