/*---------------------------------------------------------------------------*\
  =========                 |
  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
   \\    /   O peration     |
    \\  /    A nd           | Copyright (C) 2011 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.

    OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
    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 "ExplicitSetValue.H"
#include "fvMesh.H"
#include "fvMatrices.H"
#include "DimensionedField.H"

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

template<class Type>
void Foam::ExplicitSetValue<Type>::setFieldData(const dictionary& dict)
{
    fieldData_.setSize(dict.toc().size());

    label i = 0;
    forAllConstIter(dictionary, dict, iter)
    {
        fieldData_[i].first() = iter().keyword();
        dict.lookup(iter().keyword()) >> fieldData_[i].second();
        i++;
    }
}


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

template<class Type>
Foam::ExplicitSetValue<Type>::ExplicitSetValue
(
    const word& name,
    const word& modelType,
    const dictionary& dict,
    const fvMesh& mesh
)
:
    basicSource(name, modelType, dict, mesh),
    fieldData_()
{
    setFieldData(coeffs_.subDict("fieldData"));
}


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

template<class Type>
Foam::label Foam::ExplicitSetValue<Type>::applyToField
(
    const word& fieldName
) const
{
    forAll(fieldData_, i)
    {
        if (fieldData_[i].first() == fieldName)
        {
            return i;
        }
    }

    return -1;
}


template<class Type>
void Foam::ExplicitSetValue<Type>::setValue
(
    fvMatrix<Type>& eqn,
    const label fieldI
)
{
    if (debug)
    {
        Info<< "ExplicitSetValue<"<< pTraits<Type>::typeName
            << ">::setValue for source " << name_ << endl;
    }

    DimensionedField<Type, volMesh> rhs
    (
        IOobject
        (
            name_ + fieldData_[fieldI].first() + "rhs",
            eqn.psi().mesh().time().timeName(),
            eqn.psi().mesh(),
            IOobject::NO_READ,
            IOobject::NO_WRITE,
            false
        ),
        eqn.psi().mesh(),
        dimensioned<Type>
        (
            "zero",
            dimless,
            pTraits<Type>::zero
        )
    );

    List<Type> values(cells_.size());

    forAll(values, i)
    {
        values[i] = fieldData_[fieldI].second();
    }

    eqn.setValues(cells_, values);
}


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