/* -------------------------------------------------------------------------- *
 *                                   OpenMM                                   *
 * -------------------------------------------------------------------------- *
 * This is part of the OpenMM molecular simulation toolkit originating from   *
 * Simbios, the NIH National Center for Physics-Based Simulation of           *
 * Biological Structures at Stanford, funded under the NIH Roadmap for        *
 * Medical Research, grant U54 GM072970. See https://simtk.org.               *
 *                                                                            *
 * Portions copyright (c) 2025 Stanford University and the Authors.           *
 * Authors: Peter Eastman                                                     *
 * Contributors:                                                              *
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 * Software is furnished to do so, subject to the following conditions:       *
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#include "openmm/serialization/QTBIntegratorProxy.h"
#include <OpenMM.h>

using namespace std;
using namespace OpenMM;

QTBIntegratorProxy::QTBIntegratorProxy() : SerializationProxy("QTBIntegrator") {
}

void QTBIntegratorProxy::serialize(const void* object, SerializationNode& node) const {
    node.setIntProperty("version", 1);
    const QTBIntegrator& integrator = *reinterpret_cast<const QTBIntegrator*>(object);
    node.setDoubleProperty("stepSize", integrator.getStepSize());
    node.setDoubleProperty("constraintTolerance", integrator.getConstraintTolerance());
    node.setDoubleProperty("temperature", integrator.getTemperature());
    node.setDoubleProperty("friction", integrator.getFriction());
    node.setDoubleProperty("segmentLength", integrator.getSegmentLength());
    node.setDoubleProperty("cutoffFrequency", integrator.getCutoffFrequency());
    node.setDoubleProperty("defaultAdaptationRate", integrator.getDefaultAdaptationRate());
    node.setIntProperty("randomSeed", integrator.getRandomNumberSeed());
    node.setIntProperty("integrationForceGroups", integrator.getIntegrationForceGroups());
    SerializationNode& particleTypes = node.createChildNode("ParticleTypes");
    for (auto type : integrator.getParticleTypes())
        particleTypes.createChildNode("Particle").setIntProperty("index", type.first).setIntProperty("type", type.second);
    SerializationNode& adaptationRates = node.createChildNode("TypeAdaptationRates");
    for (auto type : integrator.getTypeAdaptationRates())
        adaptationRates.createChildNode("Type").setIntProperty("index", type.first).setDoubleProperty("rate", type.second);
}

void* QTBIntegratorProxy::deserialize(const SerializationNode& node) const {
    if (node.getIntProperty("version") != 1)
        throw OpenMMException("Unsupported version number");
    QTBIntegrator *integrator = new QTBIntegrator(node.getDoubleProperty("temperature"),
                                                  node.getDoubleProperty("friction"),
                                                  node.getDoubleProperty("stepSize"));
    integrator->setConstraintTolerance(node.getDoubleProperty("constraintTolerance"));
    integrator->setSegmentLength(node.getDoubleProperty("segmentLength"));
    integrator->setCutoffFrequency(node.getDoubleProperty("cutoffFrequency"));
    integrator->setDefaultAdaptationRate(node.getDoubleProperty("defaultAdaptationRate"));
    integrator->setRandomNumberSeed(node.getIntProperty("randomSeed"));
    integrator->setIntegrationForceGroups(node.getIntProperty("integrationForceGroups", 0xFFFFFFFF));
    const SerializationNode& particleTypes = node.getChildNode("ParticleTypes");
    for (auto& particle : particleTypes.getChildren())
        integrator->setParticleType(particle.getIntProperty("index"), particle.getIntProperty("type"));
    const SerializationNode& adaptationRates = node.getChildNode("TypeAdaptationRates");
    for (auto& type : adaptationRates.getChildren())
        integrator->setTypeAdaptationRate(type.getIntProperty("index"), type.getDoubleProperty("rate"));
    return integrator;
}