/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
 * This file is part of the LibreOffice project.
 *
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
 */

#include <sal/config.h>

#include <com/sun/star/frame/Desktop.hpp>
#include <com/sun/star/sheet/XSolver.hpp>
#include <com/sun/star/sheet/XSolverDescription.hpp>
#include <test/bootstrapfixture.hxx>

using namespace css;

namespace {

class LpSolverTest: public test::BootstrapFixture
{
    uno::Reference<sheet::XSpreadsheetDocument> m_xDocument;

#ifdef ENABLE_LPSOLVE
    void testLpSolver();
#endif
#ifdef ENABLE_COINMP
    void testCoinMPSolver();
#endif

#if defined(ENABLE_LPSOLVE) || defined(ENABLE_COINMP)
    void testSolver(OUString const & rName);
#endif

public:
    virtual void setUp() override;
    virtual void tearDown() override;

    CPPUNIT_TEST_SUITE(LpSolverTest);
#ifdef ENABLE_LPSOLVE
    CPPUNIT_TEST(testLpSolver);
#endif
#ifdef ENABLE_COINMP
    CPPUNIT_TEST(testCoinMPSolver);
#endif
    CPPUNIT_TEST_SUITE_END();
};

void LpSolverTest::setUp()
{
    test::BootstrapFixture::setUp();
    uno::Reference<frame::XDesktop2> xComponentLoader = frame::Desktop::create(m_xContext);
    uno::Reference<lang::XComponent> xComponent(xComponentLoader->loadComponentFromURL(
            u"private:factory/scalc"_ustr, u"_blank"_ustr, 0,
            uno::Sequence < css::beans::PropertyValue >()));
    m_xDocument.set(xComponent, uno::UNO_QUERY_THROW);
}

void LpSolverTest::tearDown()
{
    uno::Reference<lang::XComponent>(m_xDocument, uno::UNO_QUERY_THROW)->dispose();
    m_xDocument.clear();
    test::BootstrapFixture::tearDown();
}

#ifdef ENABLE_LPSOLVE
void LpSolverTest::testLpSolver()
{
    testSolver(u"com.sun.star.comp.Calc.LpsolveSolver"_ustr);
}
#endif

#ifdef ENABLE_COINMP
void LpSolverTest::testCoinMPSolver()
{
    testSolver(u"com.sun.star.comp.Calc.CoinMPSolver"_ustr);
}
#endif

#if defined(ENABLE_LPSOLVE) || defined(ENABLE_COINMP)
void LpSolverTest::testSolver(OUString const & rName)
{
    uno::Reference<sheet::XSolver> xSolver(m_xContext->getServiceManager()->
            createInstanceWithContext(rName, m_xContext), uno::UNO_QUERY_THROW);

    table::CellAddress aObjective(0, 0, 0);

    // "changing cells" - unknown variables
    uno::Sequence<table::CellAddress> aVariables { {0, 0, 0 } };

    // constraints
    uno::Sequence<sheet::SolverConstraint> aConstraints{
        { /* Left     */ table::CellAddress(0, 0, 0),
          /* Operator */ sheet::SolverConstraintOperator_LESS_EQUAL,
          /* Right    */ uno::Any(5.0) }
    };

    // initialize solver
    xSolver->setDocument( m_xDocument );
    xSolver->setObjective( aObjective );
    xSolver->setVariables( aVariables );
    xSolver->setConstraints( aConstraints );
    xSolver->setMaximize( true );

    // test results
    xSolver->solve();
    CPPUNIT_ASSERT(xSolver->getSuccess());
    uno::Sequence<double> aSolution = xSolver->getSolution();
    CPPUNIT_ASSERT_EQUAL(aSolution.getLength(), aVariables.getLength());
    CPPUNIT_ASSERT_EQUAL(5.0, aSolution[0]);

    uno::Reference<sheet::XSolverDescription> xDesc(xSolver, uno::UNO_QUERY_THROW);
    const OString sMessage("Empty description for " + OUStringToOString(rName, RTL_TEXTENCODING_UTF8));
    CPPUNIT_ASSERT_MESSAGE(sMessage.getStr(), !xDesc->getComponentDescription().isEmpty());
}
#endif

CPPUNIT_TEST_SUITE_REGISTRATION(LpSolverTest);

}

CPPUNIT_PLUGIN_IMPLEMENT();

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