/* -------------------------------------------------------------------------- *
 *                                   OpenMM                                   *
 * -------------------------------------------------------------------------- *
 * This is part of the OpenMM molecular simulation toolkit.                   *
 * See https://openmm.org/development.                                        *
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 * Portions copyright (c) 2010-2016 Stanford University and the Authors.      *
 * Authors: Peter Eastman                                                     *
 * Contributors:                                                              *
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#include "openmm/internal/AssertionUtilities.h"
#include "openmm/RBTorsionForce.h"
#include "openmm/serialization/XmlSerializer.h"
#include <iostream>
#include <sstream>

using namespace OpenMM;
using namespace std;

void testSerialization() {
    // Create a Force.

    RBTorsionForce force;
    force.setForceGroup(3);
    force.setName("custom name");
    force.addTorsion(0, 1, 2, 3, 0.1, 0.2, 0.3, 0.4, 0.5, 0.6);
    force.addTorsion(0, 2, 3, 4, 0.2, 0.3, 0.4, 0.5, 0.6, 0.7);
    force.addTorsion(2, 3, 4, 7, -1, -2, -3, 1.1, 2.2, 3.3);
    force.setUsesPeriodicBoundaryConditions(true);

    // Serialize and then deserialize it.

    stringstream buffer;
    XmlSerializer::serialize<RBTorsionForce>(&force, "Force", buffer);
    RBTorsionForce* copy = XmlSerializer::deserialize<RBTorsionForce>(buffer);

    // Compare the two forces to see if they are identical.

    RBTorsionForce& force2 = *copy;
    ASSERT_EQUAL(force.getForceGroup(), force2.getForceGroup());
    ASSERT_EQUAL(force.getName(), force2.getName());
    ASSERT_EQUAL(force.usesPeriodicBoundaryConditions(), force2.usesPeriodicBoundaryConditions());
    ASSERT_EQUAL(force.getNumTorsions(), force2.getNumTorsions());
    for (int i = 0; i < force.getNumTorsions(); i++) {
        int a1, a2, a3, a4, b1, b2, b3, b4;
        double c0a, c0b, c1a, c1b, c2a, c2b, c3a, c3b, c4a, c4b, c5a, c5b;
        force.getTorsionParameters(i, a1, a2, a3, a4, c0a, c1a, c2a, c3a, c4a, c5a);
        force2.getTorsionParameters(i, b1, b2, b3, b4, c0b, c1b, c2b, c3b, c4b, c5b);
        ASSERT_EQUAL(a1, b1);
        ASSERT_EQUAL(a2, b2);
        ASSERT_EQUAL(a3, b3);
        ASSERT_EQUAL(a4, b4);
        ASSERT_EQUAL(c0a, c0b);
        ASSERT_EQUAL(c1a, c1b);
        ASSERT_EQUAL(c2a, c2b);
        ASSERT_EQUAL(c3a, c3b);
        ASSERT_EQUAL(c4a, c4b);
        ASSERT_EQUAL(c5a, c5b);
    }
}

int main() {
    try {
        testSerialization();
    }
    catch(const exception& e) {
        cout << "exception: " << e.what() << endl;
        return 1;
    }
    cout << "Done" << endl;
    return 0;
}

