#include "model/optical/GatedLaserSource.h"

#include "model/optical_graph/OpticalWaveguide.h"
#include "model/optical_graph/OpticalWavelength.h"
#include "model/optical_graph/OpticalLaser.h"
#include "model/optical_graph/OpticalGraph.h"

namespace DSENT
{
    GatedLaserSource::GatedLaserSource(const String& instance_name_, const TechModel* tech_model_)
        : OpticalModel(instance_name_, tech_model_)
    {
        initParameters();
        initProperties();
    }

    GatedLaserSource::~GatedLaserSource()
    {}

    void GatedLaserSource::initParameters()
    {
        addParameterName("OutStart");
        addParameterName("OutEnd");
        addParameterName("MaxDetectors");
        return;
    }

    void GatedLaserSource::initProperties()
    {
		addPropertyName("OptUtil", 1.0);
        addPropertyName("LaserEventTime");
        return;
    }

    void GatedLaserSource::constructModel()
    {
        // Create Area result
        Result* area_result = new AtomicResult("Photonic");
        addAreaResult(area_result);
        // Create NDD power result
        Result* energy_result = new AtomicResult("Laser");
        addEventResult(energy_result);
    
        // Get parameters
        WavelengthGroup laser_wavelengths = makeWavelengthGroup(getParameter("OutStart"), getParameter("OutEnd"));

        // Create optical ports
        createOpticalOutputPort(    "Out",      laser_wavelengths);
        // Create the filter
        createLaser(                "Laser",    laser_wavelengths);
        OpticalLaser* laser = getLaser("Laser");
        // Connect the laser to the output
        laser->addDownstreamNode(getWaveguide("Out"));
    }
    
    void GatedLaserSource::updateModel()
    {
        // Get properties
        double laser_efficiency = getTechModel()->get("Laser->CW->Efficiency");
        double laser_area = getTechModel()->get("Laser->CW->Area");
        double laser_diode_loss = getTechModel()->get("Laser->CW->LaserDiodeLoss");

        // Get parameters
        WavelengthGroup laser_wavelengths = makeWavelengthGroup(getParameter("OutStart"), getParameter("OutEnd"));
        unsigned int number_wavelengths = laser_wavelengths.second - laser_wavelengths.first + 1;
        // Update losses
        OpticalLaser* laser = getLaser("Laser");
        laser->setLoss(laser_diode_loss);
        laser->setEfficiency(laser_efficiency);
        // Update area
        getAreaResult("Photonic")->setValue(laser_area * number_wavelengths);
    }
    
    void GatedLaserSource::evaluateModel()
    {    
        // Get parameters
        unsigned int max_detectors = getParameter("MaxDetectors");
        double laser_event_time = getProperty("LaserEventTime");
        WavelengthGroup laser_wavelengths = makeWavelengthGroup(getParameter("OutStart"), getParameter("OutEnd"));
                
		// Get properties
		double opt_util = getProperty("OptUtil");

        // Create optical graph object
        OpticalGraph* optical_graph = new OpticalGraph("LaserTrace", this);        
        // Ask optical graph object to perform power optimization
        bool success = optical_graph->performPowerOpt(getLaser("Laser"), laser_wavelengths, max_detectors, opt_util);
        if (!success)
        {
            Log::printLine(std::cerr, "[Warning] " + getInstanceName() +
                " -> Wavelengths contains data paths with no possible modulator configurations!");
        }        
        // Trace the wavelengths the laser is outputting to find the output
        // power needed by the laser        
        OpticalWavelength* wavelength = optical_graph->traceWavelength(laser_wavelengths, getLaser("Laser"));                
        // Calculate the power needed by the wavelength
        double laser_power = wavelength->getLaserPower(max_detectors);
        // Calculate NDD power
        getEventResult("Laser")->setValue(laser_power * laser_event_time);
        
        delete wavelength;
        delete optical_graph;
    }
    
} // namespace DSENT