/*---------------------------------------------------------------------------*\
  =========                 |
  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
   \\    /   O peration     | Website:  https://openfoam.org
    \\  /    A nd           | Copyright (C) 2017-2020 OpenFOAM Foundation
     \\/     M anipulation  |
-------------------------------------------------------------------------------
License
    This file is part of OpenFOAM.

    OpenFOAM is free software: you can redistribute it and/or modify it
    under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.

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    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
    FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
    for more details.

    You should have received a copy of the GNU General Public License
    along with OpenFOAM.  If not, see <http://www.gnu.org/licenses/>.

\*---------------------------------------------------------------------------*/

#include "PopulationBalancePhaseSystem.H"

// * * * * * * * * * * * * * * * * Constructors  * * * * * * * * * * * * * * //

template<class BasePhaseSystem>
Foam::PopulationBalancePhaseSystem<BasePhaseSystem>::
PopulationBalancePhaseSystem
(
    const fvMesh& mesh
)
:
    BasePhaseSystem(mesh),

    populationBalances_
    (
        this->lookup("populationBalances"),
        diameterModels::populationBalanceModel::iNew(*this, dmdtfs_)
    )
{
    forAll(populationBalances_, i)
    {
        const Foam::diameterModels::populationBalanceModel& popBal =
            populationBalances_[i];

        forAllConstIter(phaseSystem::phasePairTable, popBal.phasePairs(), iter)
        {
            const phasePairKey& key = iter.key();

            if (!this->phasePairs_.found(key))
            {
                this->phasePairs_.insert
                (
                    key,
                    autoPtr<phasePair>
                    (
                        new phasePair
                        (
                            this->phaseModels_[key.first()],
                            this->phaseModels_[key.second()]
                        )
                    )
                );
            }

            dmdtfs_.insert
            (
                key,
                new volScalarField
                (
                    IOobject
                    (
                        IOobject::groupName
                        (
                            "populationBalance:dmdtf",
                            this->phasePairs_[key]->name()
                        ),
                        this->mesh().time().timeName(),
                        this->mesh(),
                        IOobject::READ_IF_PRESENT,
                        IOobject::AUTO_WRITE
                    ),
                    this->mesh(),
                    dimensionedScalar(dimDensity/dimTime, 0)
                )
            );
        }
    }
}


// * * * * * * * * * * * * * * * * Destructor  * * * * * * * * * * * * * * * //

template<class BasePhaseSystem>
Foam::PopulationBalancePhaseSystem<BasePhaseSystem>::
~PopulationBalancePhaseSystem()
{}


// * * * * * * * * * * * * * * Member Functions  * * * * * * * * * * * * * * //

template<class BasePhaseSystem>
Foam::tmp<Foam::volScalarField>
Foam::PopulationBalancePhaseSystem<BasePhaseSystem>::dmdtf
(
    const phasePairKey& key
) const
{
    tmp<volScalarField> tDmdt = BasePhaseSystem::dmdtf(key);

    if (!dmdtfs_.found(key))
    {
        const label dmdtSign(Pair<word>::compare(this->phasePairs_[key], key));

        tDmdt.ref() += dmdtSign**dmdtfs_[key];
    }

    return tDmdt;
}


template<class BasePhaseSystem>
Foam::PtrList<Foam::volScalarField>
Foam::PopulationBalancePhaseSystem<BasePhaseSystem>::dmdts() const
{
    PtrList<volScalarField> dmdts(BasePhaseSystem::dmdts());

    forAllConstIter(phaseSystem::dmdtfTable, dmdtfs_, dmdtfIter)
    {
        const phasePair& pair = this->phasePairs_[dmdtfIter.key()];
        const volScalarField& pDmdt = *dmdtfIter();

        addField(pair.phase1(), "dmdt", pDmdt, dmdts);
        addField(pair.phase2(), "dmdt", - pDmdt, dmdts);
    }

    return dmdts;
}


template<class BasePhaseSystem>
Foam::autoPtr<Foam::phaseSystem::momentumTransferTable>
Foam::PopulationBalancePhaseSystem<BasePhaseSystem>::momentumTransfer()
{
    autoPtr<phaseSystem::momentumTransferTable> eqnsPtr =
        BasePhaseSystem::momentumTransfer();

    phaseSystem::momentumTransferTable& eqns = eqnsPtr();

    this->addDmdtUfs(dmdtfs_, eqns);

    return eqnsPtr;
}


template<class BasePhaseSystem>
Foam::autoPtr<Foam::phaseSystem::momentumTransferTable>
Foam::PopulationBalancePhaseSystem<BasePhaseSystem>::momentumTransferf()
{
    autoPtr<phaseSystem::momentumTransferTable> eqnsPtr =
        BasePhaseSystem::momentumTransferf();

    phaseSystem::momentumTransferTable& eqns = eqnsPtr();

    this->addDmdtUfs(dmdtfs_, eqns);

    return eqnsPtr;
}


template<class BasePhaseSystem>
Foam::autoPtr<Foam::phaseSystem::heatTransferTable>
Foam::PopulationBalancePhaseSystem<BasePhaseSystem>::heatTransfer() const
{
    autoPtr<phaseSystem::heatTransferTable> eqnsPtr =
        BasePhaseSystem::heatTransfer();

    phaseSystem::heatTransferTable& eqns = eqnsPtr();

    this->addDmdtHefs(dmdtfs_, eqns);

    return eqnsPtr;
}


template<class BasePhaseSystem>
Foam::autoPtr<Foam::phaseSystem::specieTransferTable>
Foam::PopulationBalancePhaseSystem<BasePhaseSystem>::specieTransfer() const
{
    autoPtr<phaseSystem::specieTransferTable> eqnsPtr =
        BasePhaseSystem::specieTransfer();

    phaseSystem::specieTransferTable& eqns = eqnsPtr();

    this->addDmdtYfs(dmdtfs_, eqns);

    return eqnsPtr;
}


template<class BasePhaseSystem>
bool Foam::PopulationBalancePhaseSystem<BasePhaseSystem>::read()
{
    if (BasePhaseSystem::read())
    {
        bool readOK = true;

        // Models ...

        return readOK;
    }
    else
    {
        return false;
    }
}


template<class BasePhaseSystem>
void Foam::PopulationBalancePhaseSystem<BasePhaseSystem>::solve
(
    const PtrList<volScalarField>& rAUs,
    const PtrList<surfaceScalarField>& rAUfs
)
{
    BasePhaseSystem::solve(rAUs, rAUfs);

    forAll(populationBalances_, i)
    {
        populationBalances_[i].solve();
    }
}


// ************************************************************************* //
